NOAA SWPC Alerty
Centrum Prognozowania National Oceanic and Atmospheric Administration pogody kosmicznej (NOAA SWPC) jest oficjalnym pogody kosmicznej agencji rządowej ze Stanów Zjednoczonych, który zapewnia powiadomienia dla zaburzeń pogody kosmicznej. Poniżej znajdziesz najnowsze powiadomienia pogody kosmicznej wydane przez NOAA SWPC.
czwartek, 6 listopada 2025
17:37 UTC
Space Weather Message Code: WARK04
Serial Number: 5141
Issue Time: 2025 Nov 06 1737 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 5140
Valid From: 2025 Nov 05 0137 UTC
Now Valid Until: 2025 Nov 07 0300 UTC
Warning Condition: persistence
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
08:10 UTC
Space Weather Message Code: ALTK06
Serial Number: 667
Issue Time: 2025 Nov 06 0810 UTC
ALERT: Geomagnetic K-index of 6
Threshold Reached: 2025 Nov 06 0809 UTC
Synoptic Period: 0600-0900 UTC
Active Warning: Yes
NOAA Scale: G2 - Moderate
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.
06:37 UTC
Space Weather Message Code: ALTK05
Serial Number: 1895
Issue Time: 2025 Nov 06 0637 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2025 Nov 06 0636 UTC
Synoptic Period: 0600-0900 UTC
Active Warning: Yes
NOAA Scale: G1 - Minor
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.
05:36 UTC
Space Weather Message Code: ALTK07
Serial Number: 193
Issue Time: 2025 Nov 06 0536 UTC
ALERT: Geomagnetic K-index of 7
Threshold Reached: 2025 Nov 06 0527 UTC
Synoptic Period: 0300-0600 UTC
Active Warning: Yes
NOAA Scale: G3 - Strong
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 50 degrees Geomagnetic Latitude.
Induced Currents - Power system voltage irregularities possible, false alarms may be triggered on some protection devices.
Spacecraft - Systems may experience surface charging; increased drag on low Earth-orbit satellites and orientation problems may occur.
Navigation - Intermittent satellite navigation (GPS) problems, including loss-of-lock and increased range error may occur.
Radio - HF (high frequency) radio may be intermittent.
Aurora - Aurora may be seen as low as Pennsylvania to Iowa to Oregon.
04:10 UTC
Space Weather Message Code: WARK06
Serial Number: 618
Issue Time: 2025 Nov 06 0410 UTC
EXTENDED WARNING: Geomagnetic K-Index of 6 expected
Extension to Serial Number: 617
Valid From: 2025 Nov 05 2200 UTC
Now Valid Until: 2025 Nov 06 1500 UTC
Warning Condition: Persistence
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.
04:08 UTC
Space Weather Message Code: WARK07
Serial Number: 135
Issue Time: 2025 Nov 06 0408 UTC
WARNING: Geomagnetic K-index of 7 or greater expected
Valid From: 2025 Nov 06 0408 UTC
Valid To: 2025 Nov 06 1200 UTC
Warning Condition: Onset
NOAA Scale: G3 or greater
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 50 degrees Geomagnetic Latitude.
Induced Currents - Power system voltage irregularities possible, false alarms may be triggered on some protection devices.
Spacecraft - Systems may experience surface charging; increased drag on low Earth-orbit satellites and orientation problems may occur.
Navigation - Intermittent satellite navigation (GPS) problems, including loss-of-lock and increased range error may occur.
Radio - HF (high frequency) radio may be intermittent.
Aurora - Aurora may be seen as low as Pennsylvania to Iowa to Oregon.
03:51 UTC
Space Weather Message Code: ALTK06
Serial Number: 666
Issue Time: 2025 Nov 06 0351 UTC
ALERT: Geomagnetic K-index of 6
Threshold Reached: 2025 Nov 06 0346 UTC
Synoptic Period: 0300-0600 UTC
Active Warning: Yes
NOAA Scale: G2 - Moderate
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.
03:36 UTC
Space Weather Message Code: ALTK05
Serial Number: 1894
Issue Time: 2025 Nov 06 0336 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2025 Nov 06 0330 UTC
Synoptic Period: 0300-0600 UTC
Active Warning: Yes
NOAA Scale: G1 - Minor
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.
01:47 UTC
Space Weather Message Code: WARK05
Serial Number: 2131
Issue Time: 2025 Nov 06 0147 UTC
EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 2130
Valid From: 2025 Nov 05 1950 UTC
Now Valid Until: 2025 Nov 06 1500 UTC
Warning Condition: Persistence
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.
01:46 UTC
Space Weather Message Code: WARK04
Serial Number: 5140
Issue Time: 2025 Nov 06 0146 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 5139
Valid From: 2025 Nov 05 0137 UTC
Now Valid Until: 2025 Nov 06 1800 UTC
Warning Condition: persistence
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
01:24 UTC
Space Weather Message Code: ALTK05
Serial Number: 1893
Issue Time: 2025 Nov 06 0124 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2025 Nov 06 0121 UTC
Synoptic Period: 0000-0300 UTC
Active Warning: Yes
NOAA Scale: G1 - Minor
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.
środa, 5 listopada 2025
22:53 UTC
Space Weather Message Code: ALTK06
Serial Number: 665
Issue Time: 2025 Nov 05 2253 UTC
ALERT: Geomagnetic K-index of 6
Threshold Reached: 2025 Nov 05 2252 UTC
Synoptic Period: 2100-2400 UTC
Active Warning: Yes
NOAA Scale: G2 - Moderate
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.
22:37 UTC
Space Weather Message Code: WARK04
Serial Number: 5139
Issue Time: 2025 Nov 05 2237 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 5138
Valid From: 2025 Nov 05 0137 UTC
Now Valid Until: 2025 Nov 07 0000 UTC
Warning Condition: persistence
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
22:29 UTC
Space Weather Message Code: WARK06
Serial Number: 617
Issue Time: 2025 Nov 05 2229 UTC
WARNING: Geomagnetic K-Index of 6 expected
Valid From: 2025 Nov 05 2200 UTC
Valid To: 2025 Nov 06 0900 UTC
Warning Condition: Onset
NOAA Scale: G2 - Moderate
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.
22:24 UTC
Space Weather Message Code: SUMXM5
Serial Number: 298
Issue Time: 2025 Nov 05 2224 UTC
SUMMARY: X-ray Event exceeded M5
Begin Time: 2025 Nov 05 2152 UTC
Maximum Time: 2025 Nov 05 2207 UTC
End Time: 2025 Nov 05 2216 UTC
X-ray Class: M8.6
Location: N24E45
NOAA Scale: R2 - Moderate
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact centered primarily on sub-solar point on the sunlit side of Earth.
Radio - Limited blackout of HF (high frequency) radio communication for tens of minutes.
22:21 UTC
Space Weather Message Code: ALTK05
Serial Number: 1892
Issue Time: 2025 Nov 05 2221 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2025 Nov 05 2214 UTC
Synoptic Period: 2100-2400 UTC
Active Warning: Yes
NOAA Scale: G1 - Minor
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.
22:21 UTC
Space Weather Message Code: SUM10R
Serial Number: 884
Issue Time: 2025 Nov 05 2221 UTC
SUMMARY: 10cm Radio Burst
Begin Time: 2025 Nov 05 2201 UTC
Maximum Time: 2025 Nov 05 2201 UTC
End Time: 2025 Nov 05 2206 UTC
Duration: 5 minutes
Peak Flux: 180 sfu
Latest Penticton Noon Flux: 147 sfu
Description: A 10cm radio burst indicates that the electromagnetic burst associated with a solar flare at the 10cm wavelength was double or greater than the initial 10cm radio background. This can be indicative of significant radio noise in association with a solar flare. This noise is generally short-lived but can cause interference for sensitive receivers including radar, GPS, and satellite communications.
22:16 UTC
Space Weather Message Code: ALTTP2
Serial Number: 1438
Issue Time: 2025 Nov 05 2216 UTC
ALERT: Type II Radio Emission
Begin Time: 2025 Nov 05 2159 UTC
Estimated Velocity: 1395 km/s
Description: Type II emissions occur in association with eruptions on the sun and typically indicate a coronal mass ejection is associated with a flare event.
22:05 UTC
Space Weather Message Code: ALTXMF
Serial Number: 496
Issue Time: 2025 Nov 05 2205 UTC
ALERT: X-Ray Flux exceeded M5
Threshold Reached: 2025 Nov 05 1103 UTC
NOAA Scale: R2 - Moderate
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact centered on sub-solar point on the sunlit side of Earth. Extent of blackout of HF (high frequency) radio communication dependent upon current X-ray Flux intensity. For real-time information on affected area and expected duration please see http://www.swpc.noaa.gov/products/d-region-absorption-predictions-d-rap.
20:16 UTC
Space Weather Message Code: ALTK05
Serial Number: 1891
Issue Time: 2025 Nov 05 2016 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2025 Nov 05 2010 UTC
Synoptic Period: 1800-2100 UTC
Active Warning: Yes
NOAA Scale: G1 - Minor
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.
19:50 UTC
Space Weather Message Code: WARK05
Serial Number: 2130
Issue Time: 2025 Nov 05 1950 UTC
WARNING: Geomagnetic K-index of 5 expected
Valid From: 2025 Nov 05 1950 UTC
Valid To: 2025 Nov 06 0900 UTC
Warning Condition: Onset
NOAA Scale: G1 - Minor
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.
19:40 UTC
Space Weather Message Code: ALTK04
Serial Number: 2605
Issue Time: 2025 Nov 05 1940 UTC
ALERT: Geomagnetic K-index of 4
Threshold Reached: 2025 Nov 05 1936 UTC
Synoptic Period: 1800-2100 UTC
Active Warning: Yes
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
18:07 UTC
Space Weather Message Code: WATA50
Serial Number: 90
Issue Time: 2025 Nov 05 1807 UTC
WATCH: Geomagnetic Storm Category G3 Predicted
Highest Storm Level Predicted by Day:
Nov 06: G3 (Strong) Nov 07: G3 (Strong) Nov 08: G1 (Minor)
THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 50 degrees Geomagnetic Latitude.
Induced Currents - Power system voltage irregularities possible, false alarms may be triggered on some protection devices.
Spacecraft - Systems may experience surface charging; increased drag on low Earth-orbit satellites and orientation problems may occur.
Navigation - Intermittent satellite navigation (GPS) problems, including loss-of-lock and increased range error may occur.
Radio - HF (high frequency) radio may be intermittent.
Aurora - Aurora may be seen as low as Pennsylvania to Iowa to Oregon.
17:56 UTC
Space Weather Message Code: WARK04
Serial Number: 5138
Issue Time: 2025 Nov 05 1756 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 5137
Valid From: 2025 Nov 05 0137 UTC
Now Valid Until: 2025 Nov 06 0000 UTC
Warning Condition: persistence
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
14:53 UTC
Space Weather Message Code: ALTEF3
Serial Number: 3556
Issue Time: 2025 Nov 05 1453 UTC
ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2025 Nov 05 1445 UTC
Station: GOES19
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.
12:01 UTC
Space Weather Message Code: SUM10R
Serial Number: 883
Issue Time: 2025 Nov 05 1201 UTC
SUMMARY: 10cm Radio Burst
Begin Time: 2025 Nov 05 1047 UTC
Maximum Time: 2025 Nov 05 1057 UTC
End Time: 2025 Nov 05 1132 UTC
Duration: 45 minutes
Peak Flux: 760 sfu
Latest Penticton Noon Flux: 159 sfu
Description: A 10cm radio burst indicates that the electromagnetic burst associated with a solar flare at the 10cm wavelength was double or greater than the initial 10cm radio background. This can be indicative of significant radio noise in association with a solar flare. This noise is generally short-lived but can cause interference for sensitive receivers including radar, GPS, and satellite communications.
11:49 UTC
Space Weather Message Code: SUMXM5
Serial Number: 297
Issue Time: 2025 Nov 05 1149 UTC
SUMMARY: X-ray Event exceeded M5
Begin Time: 2025 Nov 05 1036 UTC
Maximum Time: 2025 Nov 05 1119 UTC
End Time: 2025 Nov 05 1143 UTC
X-ray Class: M7.4
Location: N22E48
NOAA Scale: R2 - Moderate
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact centered primarily on sub-solar point on the sunlit side of Earth.
Radio - Limited blackout of HF (high frequency) radio communication for tens of minutes.
11:09 UTC
Space Weather Message Code: ALTXMF
Serial Number: 495
Issue Time: 2025 Nov 05 1109 UTC
ALERT: X-Ray Flux exceeded M5
Threshold Reached: 2025 Nov 05 1106 UTC
NOAA Scale: R2 - Moderate
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact centered on sub-solar point on the sunlit side of Earth. Extent of blackout of HF (high frequency) radio communication dependent upon current X-ray Flux intensity. For real-time information on affected area and expected duration please see http://www.swpc.noaa.gov/products/d-region-absorption-predictions-d-rap.
08:54 UTC
Space Weather Message Code: WARK04
Serial Number: 5137
Issue Time: 2025 Nov 05 0854 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 5136
Valid From: 2025 Nov 05 0137 UTC
Now Valid Until: 2025 Nov 05 1800 UTC
Warning Condition: persistence
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
01:42 UTC
Space Weather Message Code: ALTK04
Serial Number: 2604
Issue Time: 2025 Nov 05 0142 UTC
ALERT: Geomagnetic K-index of 4
Threshold Reached: 2025 Nov 05 0133 UTC
Synoptic Period: 0000-0300 UTC
Active Warning: Yes
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
01:37 UTC
Space Weather Message Code: WARK04
Serial Number: 5136
Issue Time: 2025 Nov 05 0137 UTC
WARNING: Geomagnetic K-index of 4 expected
Valid From: 2025 Nov 05 0137 UTC
Valid To: 2025 Nov 05 0900 UTC
Warning Condition: Onset
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
wtorek, 4 listopada 2025
22:31 UTC
Space Weather Message Code: ALTTP4
Serial Number: 690
Issue Time: 2025 Nov 04 2231 UTC
ALERT: Type IV Radio Emission
Begin Time: 2025 Nov 04 1729 UTC
Description: Type IV emissions occur in association with major eruptions on the sun and are typically associated with strong coronal mass ejections and solar radiation storms.
22:21 UTC
Space Weather Message Code: SUMX01
Serial Number: 198
Issue Time: 2025 Nov 04 2221 UTC
SUMMARY: X-ray Event exceeded X1
Begin Time: 2025 Nov 04 2145 UTC
Maximum Time: 2025 Nov 04 2201 UTC
End Time: 2025 Nov 04 2211 UTC
X-ray Class: X1.1
Optical Class: na
Location: S13E72
NOAA Scale: R3 - Strong
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact consists of large portions of the sunlit side of Earth, strongest at the sub-solar point.
Radio - Wide area blackout of HF (high frequency) radio communication for about an hour.
22:00 UTC
Space Weather Message Code: ALTXMF
Serial Number: 494
Issue Time: 2025 Nov 04 2200 UTC
ALERT: X-Ray Flux exceeded M5
Threshold Reached: 2025 Nov 04 2157 UTC
NOAA Scale: R2 - Moderate
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact centered on sub-solar point on the sunlit side of Earth. Extent of blackout of HF (high frequency) radio communication dependent upon current X-ray Flux intensity. For real-time information on affected area and expected duration please see http://www.swpc.noaa.gov/products/d-region-absorption-predictions-d-rap.
21:40 UTC
Space Weather Message Code: WATA20
Serial Number: 1075
Issue Time: 2025 Nov 04 2140 UTC
WATCH: Geomagnetic Storm Category G1 Predicted
Highest Storm Level Predicted by Day:
Nov 05: None (Below G1) Nov 06: G1 (Minor) Nov 07: G1 (Minor)
THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.
17:57 UTC
Space Weather Message Code: SUM10R
Serial Number: 882
Issue Time: 2025 Nov 04 1757 UTC
SUMMARY: 10cm Radio Burst
Begin Time: 2025 Nov 04 1724 UTC
Maximum Time: 2025 Nov 04 1725 UTC
End Time: 2025 Nov 04 1727 UTC
Duration: 3 minutes
Peak Flux: 160 sfu
Latest Penticton Noon Flux: 133 sfu
Description: A 10cm radio burst indicates that the electromagnetic burst associated with a solar flare at the 10cm wavelength was double or greater than the initial 10cm radio background. This can be indicative of significant radio noise in association with a solar flare. This noise is generally short-lived but can cause interference for sensitive receivers including radar, GPS, and satellite communications.
17:55 UTC
Space Weather Message Code: SUMX01
Serial Number: 197
Issue Time: 2025 Nov 04 1755 UTC
SUMMARY: X-ray Event exceeded X1
Begin Time: 2025 Nov 04 1725 UTC
Maximum Time: 2025 Nov 04 1734 UTC
End Time: 2025 Nov 04 1751 UTC
X-ray Class: X1.8
Location: N24E54
NOAA Scale: R3 - Strong
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact consists of large portions of the sunlit side of Earth, strongest at the sub-solar point.
Radio - Wide area blackout of HF (high frequency) radio communication for about an hour.
17:44 UTC
Space Weather Message Code: ALTTP4
Serial Number: 689
Issue Time: 2025 Nov 04 1744 UTC
ALERT: Type IV Radio Emission
Begin Time: 2025 Nov 04 1729 UTC
Description: Type IV emissions occur in association with major eruptions on the sun and are typically associated with strong coronal mass ejections and solar radiation storms.
17:27 UTC
Space Weather Message Code: ALTXMF
Serial Number: 493
Issue Time: 2025 Nov 04 1727 UTC
ALERT: X-Ray Flux exceeded M5
Threshold Reached: 2025 Nov 04 1725 UTC
NOAA Scale: R2 - Moderate
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact centered on sub-solar point on the sunlit side of Earth. Extent of blackout of HF (high frequency) radio communication dependent upon current X-ray Flux intensity. For real-time information on affected area and expected duration please see http://www.swpc.noaa.gov/products/d-region-absorption-predictions-d-rap.
05:51 UTC
Space Weather Message Code: ALTEF3
Serial Number: 3555
Issue Time: 2025 Nov 04 0551 UTC
CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3554
Begin Time: 2025 Oct 31 1250 UTC
Yesterday Maximum 2MeV Flux: 6364 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.
02:55 UTC
Space Weather Message Code: WARK04
Serial Number: 5135
Issue Time: 2025 Nov 04 0255 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 5134
Valid From: 2025 Nov 02 1711 UTC
Now Valid Until: 2025 Nov 04 0900 UTC
Warning Condition: Persistence
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
poniedziałek, 3 listopada 2025
21:25 UTC
Space Weather Message Code: WATA20
Serial Number: 1074
Issue Time: 2025 Nov 03 2125 UTC
WATCH: Geomagnetic Storm Category G1 Predicted
Highest Storm Level Predicted by Day:
Nov 04: None (Below G1) Nov 05: None (Below G1) Nov 06: G1 (Minor)
THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.
16:22 UTC
Space Weather Message Code: ALTTP4
Serial Number: 688
Issue Time: 2025 Nov 03 1622 UTC
ALERT: Type IV Radio Emission
Begin Time: 2025 Nov 03 1236 UTC
Description: Type IV emissions occur in association with major eruptions on the sun and are typically associated with strong coronal mass ejections and solar radiation storms.
14:55 UTC
Space Weather Message Code: WARK04
Serial Number: 5134
Issue Time: 2025 Nov 03 1455 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 5133
Valid From: 2025 Nov 02 1711 UTC
Now Valid Until: 2025 Nov 04 0300 UTC
Warning Condition: Persistence
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
10:43 UTC
Space Weather Message Code: SUMXM5
Serial Number: 296
Issue Time: 2025 Nov 03 1043 UTC
SUMMARY: X-ray Event exceeded M5
Begin Time: 2025 Nov 03 0938 UTC
Maximum Time: 2025 Nov 03 1011 UTC
End Time: 2025 Nov 03 1037 UTC
X-ray Class: M5.0
Location: N22E73
NOAA Scale: R2 - Moderate
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact centered primarily on sub-solar point on the sunlit side of Earth.
Radio - Limited blackout of HF (high frequency) radio communication for tens of minutes.
10:14 UTC
Space Weather Message Code: ALTXMF
Serial Number: 492
Issue Time: 2025 Nov 03 1014 UTC
ALERT: X-Ray Flux exceeded M5
Threshold Reached: 2025 Nov 03 1013 UTC
NOAA Scale: R2 - Moderate
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact centered on sub-solar point on the sunlit side of Earth. Extent of blackout of HF (high frequency) radio communication dependent upon current X-ray Flux intensity. For real-time information on affected area and expected duration please see http://www.swpc.noaa.gov/products/d-region-absorption-predictions-d-rap.
08:46 UTC
Space Weather Message Code: WARK05
Serial Number: 2129
Issue Time: 2025 Nov 03 0846 UTC
WARNING: Geomagnetic K-index of 5 expected
Valid From: 2025 Nov 03 0845 UTC
Valid To: 2025 Nov 03 1500 UTC
Warning Condition: Onset
NOAA Scale: G1 - Minor
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.
08:05 UTC
Space Weather Message Code: WARK04
Serial Number: 5133
Issue Time: 2025 Nov 03 0805 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 5132
Valid From: 2025 Nov 02 1711 UTC
Now Valid Until: 2025 Nov 03 1500 UTC
Warning Condition: Persistence
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
04:59 UTC
Space Weather Message Code: ALTEF3
Serial Number: 3554
Issue Time: 2025 Nov 03 0459 UTC
CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3553
Begin Time: 2025 Oct 31 1250 UTC
Yesterday Maximum 2MeV Flux: 12611 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.
niedziela, 2 listopada 2025
17:55 UTC
Space Weather Message Code: ALTK04
Serial Number: 2603
Issue Time: 2025 Nov 02 1755 UTC
ALERT: Geomagnetic K-index of 4
Threshold Reached: 2025 Nov 02 1749 UTC
Synoptic Period: 1500-1800 UTC
Active Warning: Yes
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
17:12 UTC
Space Weather Message Code: WARK04
Serial Number: 5132
Issue Time: 2025 Nov 02 1712 UTC
WARNING: Geomagnetic K-index of 4 expected
Valid From: 2025 Nov 02 1711 UTC
Valid To: 2025 Nov 03 0900 UTC
Warning Condition: Onset
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
04:59 UTC
Space Weather Message Code: ALTEF3
Serial Number: 3553
Issue Time: 2025 Nov 02 0459 UTC
CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3552
Begin Time: 2025 Oct 31 1250 UTC
Yesterday Maximum 2MeV Flux: 10574 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.
02:36 UTC
Space Weather Message Code: WARK04
Serial Number: 5131
Issue Time: 2025 Nov 02 0236 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 5130
Valid From: 2025 Oct 27 2325 UTC
Now Valid Until: 2025 Nov 02 1200 UTC
Warning Condition: Persistence
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
sobota, 1 listopada 2025
20:56 UTC
Space Weather Message Code: WARK04
Serial Number: 5130
Issue Time: 2025 Nov 01 2056 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 5129
Valid From: 2025 Oct 27 2325 UTC
Now Valid Until: 2025 Nov 02 0300 UTC
Warning Condition: Persistence
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
05:56 UTC
Space Weather Message Code: WARK04
Serial Number: 5129
Issue Time: 2025 Nov 01 0556 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 5128
Valid From: 2025 Oct 27 2325 UTC
Now Valid Until: 2025 Nov 01 2100 UTC
Warning Condition: Persistence
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
05:00 UTC
Space Weather Message Code: ALTEF3
Serial Number: 3552
Issue Time: 2025 Nov 01 0500 UTC
CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3551
Begin Time: 2025 Oct 31 1250 UTC
Yesterday Maximum 2MeV Flux: 4767 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.
piątek, 31 października 2025
21:07 UTC
Space Weather Message Code: ALTTP2
Serial Number: 1437
Issue Time: 2025 Oct 31 2107 UTC
ALERT: Type II Radio Emission
Begin Time: 2025 Oct 31 2013 UTC
Estimated Velocity: 542 km/s
Description: Type II emissions occur in association with eruptions on the sun and typically indicate a coronal mass ejection is associated with a flare event.
14:27 UTC
Space Weather Message Code: WARK05
Serial Number: 2128
Issue Time: 2025 Oct 31 1427 UTC
EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 2127
Valid From: 2025 Oct 29 2344 UTC
Now Valid Until: 2025 Oct 31 2100 UTC
Warning Condition: Persistence
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.
14:27 UTC
Space Weather Message Code: WARK04
Serial Number: 5128
Issue Time: 2025 Oct 31 1427 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 5127
Valid From: 2025 Oct 27 2325 UTC
Now Valid Until: 2025 Nov 01 0600 UTC
Warning Condition: Persistence
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
13:09 UTC
Space Weather Message Code: ALTEF3
Serial Number: 3551
Issue Time: 2025 Oct 31 1309 UTC
ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2025 Oct 31 1250 UTC
Station: GOES19
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.
06:02 UTC
Space Weather Message Code: ALTK05
Serial Number: 1890
Issue Time: 2025 Oct 31 0602 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2025 Oct 31 0559 UTC
Synoptic Period: 0300-0600 UTC
Active Warning: Yes
NOAA Scale: G1 - Minor
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.
05:49 UTC
Space Weather Message Code: WARK05
Serial Number: 2127
Issue Time: 2025 Oct 31 0549 UTC
EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 2126
Valid From: 2025 Oct 29 2344 UTC
Now Valid Until: 2025 Oct 31 1500 UTC
Warning Condition: Persistence
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.
05:49 UTC
Space Weather Message Code: WARK04
Serial Number: 5127
Issue Time: 2025 Oct 31 0549 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 5126
Valid From: 2025 Oct 27 2325 UTC
Now Valid Until: 2025 Oct 31 2100 UTC
Warning Condition: Persistence
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
czwartek, 30 października 2025
23:52 UTC
Space Weather Message Code: WARK05
Serial Number: 2126
Issue Time: 2025 Oct 30 2352 UTC
EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 2125
Valid From: 2025 Oct 29 2344 UTC
Now Valid Until: 2025 Oct 31 0600 UTC
Warning Condition: Persistence
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.
16:50 UTC
Space Weather Message Code: ALTK05
Serial Number: 1889
Issue Time: 2025 Oct 30 1650 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2025 Oct 30 1645 UTC
Synoptic Period: 1500-1800 UTC
Active Warning: Yes
NOAA Scale: G1 - Minor
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.
16:36 UTC
Space Weather Message Code: WARK04
Serial Number: 5126
Issue Time: 2025 Oct 30 1636 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 5125
Valid From: 2025 Oct 27 2325 UTC
Now Valid Until: 2025 Oct 31 1200 UTC
Warning Condition: Persistence
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
14:54 UTC
Space Weather Message Code: WARK05
Serial Number: 2125
Issue Time: 2025 Oct 30 1454 UTC
EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 2124
Valid From: 2025 Oct 29 2344 UTC
Now Valid Until: 2025 Oct 30 2359 UTC
Warning Condition: Persistence
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.
12:54 UTC
Space Weather Message Code: ALTK05
Serial Number: 1888
Issue Time: 2025 Oct 30 1254 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2025 Oct 30 1253 UTC
Synoptic Period: 1200-1500 UTC
Active Warning: Yes
NOAA Scale: G1 - Minor
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.
10:13 UTC
Space Weather Message Code: WARK06
Serial Number: 616
Issue Time: 2025 Oct 30 1013 UTC
WARNING: Geomagnetic K-Index of 6 expected
Valid From: 2025 Oct 30 1012 UTC
Valid To: 2025 Oct 30 1500 UTC
Warning Condition: Onset
NOAA Scale: G2 - Moderate
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.
10:12 UTC
Space Weather Message Code: ALTK05
Serial Number: 1887
Issue Time: 2025 Oct 30 1012 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2025 Oct 30 1012 UTC
Synoptic Period: 0900-1200 UTC
Active Warning: Yes
NOAA Scale: G1 - Minor
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.
05:37 UTC
Space Weather Message Code: WARK04
Serial Number: 5125
Issue Time: 2025 Oct 30 0537 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 5124
Valid From: 2025 Oct 27 2325 UTC
Now Valid Until: 2025 Oct 30 2100 UTC
Warning Condition: Persistence
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
05:37 UTC
Space Weather Message Code: WARK05
Serial Number: 2124
Issue Time: 2025 Oct 30 0537 UTC
EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 2123
Valid From: 2025 Oct 29 2344 UTC
Now Valid Until: 2025 Oct 30 1500 UTC
Warning Condition: Persistence
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.
05:06 UTC
Space Weather Message Code: ALTTP2
Serial Number: 1436
Issue Time: 2025 Oct 30 0506 UTC
ALERT: Type II Radio Emission
Begin Time: 2025 Oct 30 0428 UTC
Estimated Velocity: 691 km/s
Description: Type II emissions occur in association with eruptions on the sun and typically indicate a coronal mass ejection is associated with a flare event.
03:02 UTC
Space Weather Message Code: ALTK05
Serial Number: 1886
Issue Time: 2025 Oct 30 0302 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2025 Oct 30 0259 UTC
Synoptic Period: 0000-0300 UTC
Active Warning: Yes
NOAA Scale: G1 - Minor
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.
środa, 29 października 2025
23:44 UTC
Space Weather Message Code: WARK05
Serial Number: 2123
Issue Time: 2025 Oct 29 2344 UTC
WARNING: Geomagnetic K-index of 5 expected
Valid From: 2025 Oct 29 2344 UTC
Valid To: 2025 Oct 30 0600 UTC
Warning Condition: Onset
NOAA Scale: G1 - Minor
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.
16:06 UTC
Space Weather Message Code: WARK04
Serial Number: 5124
Issue Time: 2025 Oct 29 1606 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 5123
Valid From: 2025 Oct 27 2325 UTC
Now Valid Until: 2025 Oct 30 0600 UTC
Warning Condition: Persistence
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
11:12 UTC
Space Weather Message Code: WARK04
Serial Number: 5123
Issue Time: 2025 Oct 29 1112 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 5122
Valid From: 2025 Oct 27 2325 UTC
Now Valid Until: 2025 Oct 29 2100 UTC
Warning Condition: Persistence
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
00:40 UTC
Space Weather Message Code: ALTTP2
Serial Number: 1435
Issue Time: 2025 Oct 29 0040 UTC
ALERT: Type II Radio Emission
Begin Time: 2025 Oct 29 0010 UTC
Estimated Velocity: 1279 km/s
Comment: associated with farsided event
Description: Type II emissions occur in association with eruptions on the sun and typically indicate a coronal mass ejection is associated with a flare event.
wtorek, 28 października 2025
18:42 UTC
Space Weather Message Code: WARK04
Serial Number: 5122
Issue Time: 2025 Oct 28 1842 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 5121
Valid From: 2025 Oct 27 2325 UTC
Now Valid Until: 2025 Oct 29 1200 UTC
Warning Condition: Onset
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
15:01 UTC
Space Weather Message Code: ALTK04
Serial Number: 2602
Issue Time: 2025 Oct 28 1501 UTC
ALERT: Geomagnetic K-index of 4
Threshold Reached: 2025 Oct 28 1451 UTC
Synoptic Period: 1200-1500 UTC
Active Warning: Yes
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
08:55 UTC
Space Weather Message Code: WARK04
Serial Number: 5121
Issue Time: 2025 Oct 28 0855 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 5120
Valid From: 2025 Oct 27 2325 UTC
Now Valid Until: 2025 Oct 28 1800 UTC
Warning Condition: Onset
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
02:53 UTC
Space Weather Message Code: WARK04
Serial Number: 5120
Issue Time: 2025 Oct 28 0253 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 5119
Valid From: 2025 Oct 27 2325 UTC
Now Valid Until: 2025 Oct 28 0900 UTC
Warning Condition: Onset
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
00:10 UTC
Space Weather Message Code: WATA20
Serial Number: 1073
Issue Time: 2025 Oct 28 0010 UTC
WATCH: Geomagnetic Storm Category G1 Predicted
Highest Storm Level Predicted by Day:
Oct 28: G1 (Minor) Oct 29: G1 (Minor) Oct 30: G1 (Minor)
THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.
poniedziałek, 27 października 2025
23:25 UTC
Space Weather Message Code: WARK04
Serial Number: 5119
Issue Time: 2025 Oct 27 2325 UTC
WARNING: Geomagnetic K-index of 4 expected
Valid From: 2025 Oct 27 2325 UTC
Valid To: 2025 Oct 28 0300 UTC
Warning Condition: Onset
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
niedziela, 26 października 2025
20:17 UTC
Space Weather Message Code: WATA20
Serial Number: 1072
Issue Time: 2025 Oct 26 2017 UTC
WATCH: Geomagnetic Storm Category G1 Predicted
Highest Storm Level Predicted by Day:
Oct 27: None (Below G1) Oct 28: G1 (Minor) Oct 29: G1 (Minor)
THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.
sobota, 25 października 2025
20:55 UTC
Space Weather Message Code: WATA20
Serial Number: 1071
Issue Time: 2025 Oct 25 2055 UTC
WATCH: Geomagnetic Storm Category G1 Predicted
Highest Storm Level Predicted by Day:
Oct 26: None (Below G1) Oct 27: None (Below G1) Oct 28: G1 (Minor)
THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.
05:57 UTC
Space Weather Message Code: ALTK04
Serial Number: 2601
Issue Time: 2025 Oct 25 0557 UTC
ALERT: Geomagnetic K-index of 4
Threshold Reached: 2025 Oct 25 0557 UTC
Synoptic Period: 0300-0600 UTC
Active Warning: Yes
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
05:48 UTC
Space Weather Message Code: WARK04
Serial Number: 5118
Issue Time: 2025 Oct 25 0548 UTC
WARNING: Geomagnetic K-index of 4 expected
Valid From: 2025 Oct 25 0548 UTC
Valid To: 2025 Oct 25 2359 UTC
Warning Condition: Onset
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
wtorek, 21 października 2025
21:09 UTC
Space Weather Message Code: ALTTP4
Serial Number: 687
Issue Time: 2025 Oct 21 2109 UTC
ALERT: Type IV Radio Emission
Begin Time: 2025 Oct 21 2011 UTC
Description: Type IV emissions occur in association with major eruptions on the sun and are typically associated with strong coronal mass ejections and solar radiation storms.
21:08 UTC
Space Weather Message Code: ALTTP2
Serial Number: 1434
Issue Time: 2025 Oct 21 2108 UTC
ALERT: Type II Radio Emission
Begin Time: 2025 Oct 21 2007 UTC
Estimated Velocity: 2474 km/s
Description: Type II emissions occur in association with eruptions on the sun and typically indicate a coronal mass ejection is associated with a flare event.
09:09 UTC
Space Weather Message Code: WARK04
Serial Number: 5117
Issue Time: 2025 Oct 21 0909 UTC
CANCEL WARNING: Geomagnetic K-index of 4 expected
Cancel Serial Number: 5116
Original Issue Time: 2025 Oct 21 0456 UTC
Comment: The conditions for this warning no longer exist
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
04:56 UTC
Space Weather Message Code: WARK04
Serial Number: 5116
Issue Time: 2025 Oct 21 0456 UTC
WARNING: Geomagnetic K-index of 4 expected
Valid From: 2025 Oct 21 0455 UTC
Valid To: 2025 Oct 21 1500 UTC
Warning Condition: Onset
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
niedziela, 19 października 2025
00:50 UTC
Space Weather Message Code: ALTK05
Serial Number: 1885
Issue Time: 2025 Oct 19 0050 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2025 Oct 19 0043 UTC
Synoptic Period: 0000-0300 UTC
Active Warning: Yes
NOAA Scale: G1 - Minor
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.
sobota, 18 października 2025
23:40 UTC
Space Weather Message Code: WARK05
Serial Number: 2122
Issue Time: 2025 Oct 18 2340 UTC
EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 2121
Valid From: 2025 Oct 18 1743 UTC
Now Valid Until: 2025 Oct 19 0900 UTC
Warning Condition: Persistence
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.
23:39 UTC
Space Weather Message Code: WARK04
Serial Number: 5115
Issue Time: 2025 Oct 18 2339 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 5114
Valid From: 2025 Oct 18 1726 UTC
Now Valid Until: 2025 Oct 19 1200 UTC
Warning Condition: Persistence
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
20:13 UTC
Space Weather Message Code: ALTK06
Serial Number: 664
Issue Time: 2025 Oct 18 2013 UTC
ALERT: Geomagnetic K-index of 6
Threshold Reached: 2025 Oct 18 2012 UTC
Synoptic Period: 1800-2100 UTC
Active Warning: Yes
NOAA Scale: G2 - Moderate
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.
19:53 UTC
Space Weather Message Code: WARK06
Serial Number: 615
Issue Time: 2025 Oct 18 1953 UTC
WARNING: Geomagnetic K-Index of 6 expected
Valid From: 2025 Oct 18 1952 UTC
Valid To: 2025 Oct 18 2359 UTC
Warning Condition: Onset
NOAA Scale: G2 - Moderate
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.
19:47 UTC
Space Weather Message Code: ALTK05
Serial Number: 1884
Issue Time: 2025 Oct 18 1947 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2025 Oct 18 1947 UTC
Synoptic Period: 1800-2100 UTC
Active Warning: Yes
NOAA Scale: G1 - Minor
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.
17:48 UTC
Space Weather Message Code: ALTK05
Serial Number: 1883
Issue Time: 2025 Oct 18 1748 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2025 Oct 18 1746 UTC
Synoptic Period: 1500-1800 UTC
Active Warning: Yes
NOAA Scale: G1 - Minor
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.
17:43 UTC
Space Weather Message Code: WARK05
Serial Number: 2121
Issue Time: 2025 Oct 18 1743 UTC
WARNING: Geomagnetic K-index of 5 expected
Valid From: 2025 Oct 18 1743 UTC
Valid To: 2025 Oct 18 2359 UTC
Warning Condition: Onset
NOAA Scale: G1 - Minor
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.
17:28 UTC
Space Weather Message Code: ALTK04
Serial Number: 2600
Issue Time: 2025 Oct 18 1728 UTC
ALERT: Geomagnetic K-index of 4
Threshold Reached: 2025 Oct 18 1728 UTC
Synoptic Period: 1500-1800 UTC
Active Warning: Yes
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
17:27 UTC
Space Weather Message Code: WARK04
Serial Number: 5114
Issue Time: 2025 Oct 18 1727 UTC
WARNING: Geomagnetic K-index of 4 expected
Valid From: 2025 Oct 18 1726 UTC
Valid To: 2025 Oct 19 2359 UTC
Warning Condition: Onset
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
08:36 UTC
Space Weather Message Code: ALTK05
Serial Number: 1882
Issue Time: 2025 Oct 18 0836 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2025 Oct 18 0835 UTC
Synoptic Period: 0600-0900 UTC
Active Warning: Yes
NOAA Scale: G1 - Minor
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.
05:53 UTC
Space Weather Message Code: WARK05
Serial Number: 2120
Issue Time: 2025 Oct 18 0553 UTC
WARNING: Geomagnetic K-index of 5 expected
Valid From: 2025 Oct 18 0552 UTC
Valid To: 2025 Oct 18 1500 UTC
Warning Condition: Onset
NOAA Scale: G1 - Minor
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.
02:42 UTC
Space Weather Message Code: ALTK04
Serial Number: 2599
Issue Time: 2025 Oct 18 0242 UTC
ALERT: Geomagnetic K-index of 4
Threshold Reached: 2025 Oct 18 0242 UTC
Synoptic Period: 0000-0300 UTC
Active Warning: Yes
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
02:37 UTC
Space Weather Message Code: WARK04
Serial Number: 5113
Issue Time: 2025 Oct 18 0237 UTC
WARNING: Geomagnetic K-index of 4 expected
Valid From: 2025 Oct 18 0237 UTC
Valid To: 2025 Oct 18 1500 UTC
Warning Condition: Onset
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
piątek, 17 października 2025
17:56 UTC
Space Weather Message Code: WARK04
Serial Number: 5112
Issue Time: 2025 Oct 17 1756 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 5111
Valid From: 2025 Oct 17 1034 UTC
Now Valid Until: 2012 Oct 18 1800 UTC
Warning Condition: Persistence
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
12:01 UTC
Space Weather Message Code: ALTK04
Serial Number: 2598
Issue Time: 2025 Oct 17 1201 UTC
ALERT: Geomagnetic K-index of 4
Threshold Reached: 2025 Oct 17 1159 UTC
Synoptic Period: 0900-1200 UTC
Active Warning: Yes
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
11:22 UTC
Space Weather Message Code: ALTEF3
Serial Number: 3550
Issue Time: 2025 Oct 17 1122 UTC
CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3549
Begin Time: 2025 Oct 01 1325 UTC
Yesterday Maximum 2MeV Flux: 3769 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.
10:34 UTC
Space Weather Message Code: WARK04
Serial Number: 5111
Issue Time: 2025 Oct 17 1034 UTC
WARNING: Geomagnetic K-index of 4 expected
Valid From: 2025 Oct 17 1034 UTC
Valid To: 2025 Oct 17 1800 UTC
Warning Condition: Onset
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
czwartek, 16 października 2025
09:30 UTC
Space Weather Message Code: ALTEF3
Serial Number: 3549
Issue Time: 2025 Oct 16 0930 UTC
CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3548
Begin Time: 2025 Oct 01 1325 UTC
Yesterday Maximum 2MeV Flux: 2847 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.
środa, 15 października 2025
16:15 UTC
Space Weather Message Code: SUM10R
Serial Number: 881
Issue Time: 2025 Oct 15 1615 UTC
SUMMARY: 10cm Radio Burst
Begin Time: 2025 Oct 15 1521 UTC
Maximum Time: 2025 Oct 15 1524 UTC
End Time: 2025 Oct 15 1532 UTC
Duration: 11 minutes
Peak Flux: 180 sfu
Latest Penticton Noon Flux: 154 sfu
Description: A 10cm radio burst indicates that the electromagnetic burst associated with a solar flare at the 10cm wavelength was double or greater than the initial 10cm radio background. This can be indicative of significant radio noise in association with a solar flare. This noise is generally short-lived but can cause interference for sensitive receivers including radar, GPS, and satellite communications.
10:41 UTC
Space Weather Message Code: ALTEF3
Serial Number: 3548
Issue Time: 2025 Oct 15 1041 UTC
CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3547
Begin Time: 2025 Oct 01 1325 UTC
Yesterday Maximum 2MeV Flux: 5134 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.
03:00 UTC
Space Weather Message Code: ALTK04
Serial Number: 2597
Issue Time: 2025 Oct 15 0300 UTC
ALERT: Geomagnetic K-index of 4
Threshold Reached: 2025 Oct 15 0259 UTC
Synoptic Period: 0000-0300 UTC
Active Warning: Yes
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
02:39 UTC
Space Weather Message Code: WARK04
Serial Number: 5110
Issue Time: 2025 Oct 15 0239 UTC
WARNING: Geomagnetic K-index of 4 expected
Valid From: 2025 Oct 15 0238 UTC
Valid To: 2025 Oct 15 1500 UTC
Warning Condition: Onset
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
wtorek, 14 października 2025
19:43 UTC
Space Weather Message Code: WATA30
Serial Number: 259
Issue Time: 2025 Oct 14 1943 UTC
WATCH: Geomagnetic Storm Category G2 Predicted
Highest Storm Level Predicted by Day:
Oct 15: None (Below G1) Oct 16: G2 (Moderate) Oct 17: G1 (Minor)
THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.
17:40 UTC
Space Weather Message Code: SUM10R
Serial Number: 880
Issue Time: 2025 Oct 14 1740 UTC
SUMMARY: 10cm Radio Burst
Begin Time: 2025 Oct 14 1244 UTC
Maximum Time: 2025 Oct 14 1245 UTC
End Time: 2025 Oct 14 1246 UTC
Duration: 2 minutes
Peak Flux: 160 sfu
Latest Penticton Noon Flux: 141 sfu
Description: A 10cm radio burst indicates that the electromagnetic burst associated with a solar flare at the 10cm wavelength was double or greater than the initial 10cm radio background. This can be indicative of significant radio noise in association with a solar flare. This noise is generally short-lived but can cause interference for sensitive receivers including radar, GPS, and satellite communications.
05:00 UTC
Space Weather Message Code: ALTEF3
Serial Number: 3547
Issue Time: 2025 Oct 14 0500 UTC
CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3546
Begin Time: 2025 Oct 01 1325 UTC
Yesterday Maximum 2MeV Flux: 4078 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.
02:55 UTC
Space Weather Message Code: WARK04
Serial Number: 5109
Issue Time: 2025 Oct 14 0255 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 5108
Valid From: 2025 Oct 11 0502 UTC
Now Valid Until: 2025 Oct 14 1500 UTC
Warning Condition: Persistence
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
poniedziałek, 13 października 2025
21:09 UTC
Space Weather Message Code: WATA20
Serial Number: 1070
Issue Time: 2025 Oct 13 2109 UTC
WATCH: Geomagnetic Storm Category G1 Predicted
Highest Storm Level Predicted by Day:
Oct 14: None (Below G1) Oct 15: None (Below G1) Oct 16: G1 (Minor)
THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT
Comment: G1 (Minor) geomagnetic storming is likely on 16 Oct as CMEs that left the Sun on 11-12 Oct arrive and impact the near-Earth environment.
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.
17:54 UTC
Space Weather Message Code: WARK04
Serial Number: 5108
Issue Time: 2025 Oct 13 1754 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 5107
Valid From: 2025 Oct 11 0502 UTC
Now Valid Until: 2025 Oct 14 0300 UTC
Warning Condition: Persistence
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
17:26 UTC
Space Weather Message Code: ALTTP2
Serial Number: 1433
Issue Time: 2025 Oct 13 1726 UTC
ALERT: Type II Radio Emission
Begin Time: 2025 Oct 13 1303 UTC
Estimated Velocity: 570 km/s
Description: Type II emissions occur in association with eruptions on the sun and typically indicate a coronal mass ejection is associated with a flare event.
05:30 UTC
Space Weather Message Code: ALTK05
Serial Number: 1881
Issue Time: 2025 Oct 13 0530 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2025 Oct 13 0521 UTC
Synoptic Period: 0300-0600 UTC
Active Warning: Yes
NOAA Scale: G1 - Minor
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.
05:07 UTC
Space Weather Message Code: ALTEF3
Serial Number: 3546
Issue Time: 2025 Oct 13 0507 UTC
CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3545
Begin Time: 2025 Oct 01 1325 UTC
Yesterday Maximum 2MeV Flux: 1707 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.
03:02 UTC
Space Weather Message Code: ALTEF3
Serial Number: 3545
Issue Time: 2025 Oct 13 0302 UTC
CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3544
Begin Time: 2025 Oct 01 1325 UTC
Yesterday Maximum 2MeV Flux: 1707 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.
02:57 UTC
Space Weather Message Code: ALTK05
Serial Number: 1880
Issue Time: 2025 Oct 13 0257 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2025 Oct 13 0256 UTC
Synoptic Period: 0000-0300 UTC
Active Warning: Yes
NOAA Scale: G1 - Minor
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.
00:00 UTC
Space Weather Message Code: WARK05
Serial Number: 2119
Issue Time: 2025 Oct 13 0000 UTC
EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 2118
Valid From: 2025 Oct 12 0334 UTC
Now Valid Until: 2025 Oct 13 1500 UTC
Warning Condition: Persistence
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.
niedziela, 12 października 2025
23:59 UTC
Space Weather Message Code: WARK04
Serial Number: 5107
Issue Time: 2025 Oct 12 2359 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 5106
Valid From: 2025 Oct 11 0502 UTC
Now Valid Until: 2025 Oct 13 1800 UTC
Warning Condition: Persistence
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
19:13 UTC
Space Weather Message Code: WARK06
Serial Number: 614
Issue Time: 2025 Oct 12 1913 UTC
WARNING: Geomagnetic K-Index of 6 expected
Valid From: 2025 Oct 12 1913 UTC
Valid To: 2025 Oct 12 2359 UTC
Warning Condition: Onset
NOAA Scale: G2 - Moderate
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.
18:49 UTC
Space Weather Message Code: ALTK05
Serial Number: 1879
Issue Time: 2025 Oct 12 1849 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2025 Oct 12 1842 UTC
Synoptic Period: 1800-2100 UTC
Active Warning: Yes
NOAA Scale: G1 - Minor
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.
13:02 UTC
Space Weather Message Code: ALTEF3
Serial Number: 3544
Issue Time: 2025 Oct 12 1302 UTC
CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3543
Begin Time: 2025 Oct 01 1325 UTC
Yesterday Maximum 2MeV Flux: 2785 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.
03:36 UTC
Space Weather Message Code: WARK05
Serial Number: 2118
Issue Time: 2025 Oct 12 0336 UTC
WARNING: Geomagnetic K-index of 5 expected
Valid From: 2025 Oct 12 0334 UTC
Valid To: 2025 Oct 12 2359 UTC
Warning Condition: Onset
NOAA Scale: G1 - Minor
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.
03:36 UTC
Space Weather Message Code: WARK04
Serial Number: 5106
Issue Time: 2025 Oct 12 0336 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 5105
Valid From: 2025 Oct 11 0502 UTC
Now Valid Until: 2025 Oct 12 2359 UTC
Warning Condition: Persistence
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
00:20 UTC
Space Weather Message Code: WARK04
Serial Number: 5105
Issue Time: 2025 Oct 12 0020 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 5104
Valid From: 2025 Oct 11 0502 UTC
Now Valid Until: 2025 Oct 12 1800 UTC
Warning Condition: Persistence
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
sobota, 11 października 2025
23:56 UTC
Space Weather Message Code: WARK04
Serial Number: 5104
Issue Time: 2025 Oct 11 2356 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 5103
Valid From: 2025 Oct 11 0502 UTC
Now Valid Until: 2025 Oct 11 1800 UTC
Warning Condition: Persistence
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
09:02 UTC
Space Weather Message Code: ALTK05
Serial Number: 1878
Issue Time: 2025 Oct 11 0902 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2025 Oct 11 0859 UTC
Synoptic Period: 0600-0900 UTC
Active Warning: Yes
NOAA Scale: G1 - Minor
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.
08:16 UTC
Space Weather Message Code: WARK05
Serial Number: 2117
Issue Time: 2025 Oct 11 0816 UTC
WARNING: Geomagnetic K-index of 5 expected
Valid From: 2025 Oct 11 0815 UTC
Valid To: 2025 Oct 11 2359 UTC
Warning Condition: Onset
NOAA Scale: G1 - Minor
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.
05:10 UTC
Space Weather Message Code: ALTK04
Serial Number: 2596
Issue Time: 2025 Oct 11 0510 UTC
ALERT: Geomagnetic K-index of 4
Threshold Reached: 2025 Oct 11 0509 UTC
Synoptic Period: 0300-0600 UTC
Active Warning: Yes
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
05:03 UTC
Space Weather Message Code: WARK04
Serial Number: 5103
Issue Time: 2025 Oct 11 0503 UTC
WARNING: Geomagnetic K-index of 4 expected
Valid From: 2025 Oct 11 0502 UTC
Valid To: 2025 Oct 11 2359 UTC
Warning Condition: Onset
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
04:59 UTC
Space Weather Message Code: ALTEF3
Serial Number: 3543
Issue Time: 2025 Oct 11 0459 UTC
CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3542
Begin Time: 2025 Oct 01 1325 UTC
Yesterday Maximum 2MeV Flux: 2513 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.
piątek, 10 października 2025
19:27 UTC
Space Weather Message Code: WATA20
Serial Number: 1069
Issue Time: 2025 Oct 10 1927 UTC
WATCH: Geomagnetic Storm Category G1 Predicted
Highest Storm Level Predicted by Day:
Oct 11: None (Below G1) Oct 12: G1 (Minor) Oct 13: G1 (Minor)
THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.
06:46 UTC
Space Weather Message Code: ALTEF3
Serial Number: 3542
Issue Time: 2025 Oct 10 0646 UTC
CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3541
Begin Time: 2025 Oct 01 1325 UTC
Yesterday Maximum 2MeV Flux: 5051 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.
03:02 UTC
Space Weather Message Code: ALTK04
Serial Number: 2595
Issue Time: 2025 Oct 10 0302 UTC
ALERT: Geomagnetic K-index of 4
Threshold Reached: 2025 Oct 10 0259 UTC
Synoptic Period: 0000-0300 UTC
Active Warning: Yes
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
01:49 UTC
Space Weather Message Code: WARK04
Serial Number: 5102
Issue Time: 2025 Oct 10 0149 UTC
WARNING: Geomagnetic K-index of 4 expected
Valid From: 2025 Oct 10 0148 UTC
Valid To: 2025 Oct 10 1500 UTC
Warning Condition: Onset
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
czwartek, 9 października 2025
21:15 UTC
Space Weather Message Code: WATA20
Serial Number: 1068
Issue Time: 2025 Oct 09 2115 UTC
WATCH: Geomagnetic Storm Category G1 Predicted
Highest Storm Level Predicted by Day:
Oct 10: None (Below G1) Oct 11: None (Below G1) Oct 12: G1 (Minor)
THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.
14:03 UTC
Space Weather Message Code: ALTEF3
Serial Number: 3541
Issue Time: 2025 Oct 09 1403 UTC
CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3540
Begin Time: 2025 Oct 01 1325 UTC
Yesterday Maximum 2MeV Flux: 4767 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.
środa, 8 października 2025
05:36 UTC
Space Weather Message Code: ALTEF3
Serial Number: 3540
Issue Time: 2025 Oct 08 0536 UTC
CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3539
Begin Time: 2025 Oct 01 1325 UTC
Yesterday Maximum 2MeV Flux: 10522 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.
05:36 UTC
Space Weather Message Code: ALTK04
Serial Number: 2594
Issue Time: 2025 Oct 08 0536 UTC
ALERT: Geomagnetic K-index of 4
Threshold Reached: 2025 Oct 08 0532 UTC
Synoptic Period: 0300-0600 UTC
Active Warning: Yes
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
05:26 UTC
Space Weather Message Code: WARK04
Serial Number: 5101
Issue Time: 2025 Oct 08 0526 UTC
WARNING: Geomagnetic K-index of 4 expected
Valid From: 2025 Oct 08 0525 UTC
Valid To: 2025 Oct 08 1800 UTC
Warning Condition: Onset
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
04:08 UTC
Space Weather Message Code: WARK04
Serial Number: 5100
Issue Time: 2025 Oct 08 0408 UTC
WARNING: Geomagnetic K-index of 4 expected
Valid From: 2025 Oct 08 0408 UTC
Valid To: 2025 Oct 08 0900 UTC
Warning Condition: Onset
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
wtorek, 7 października 2025
20:51 UTC
Space Weather Message Code: ALTTP2
Serial Number: 1432
Issue Time: 2025 Oct 07 2051 UTC
ALERT: Type II Radio Emission
Begin Time: 2025 Oct 07 2007 UTC
Estimated Velocity: 755 km/s
Description: Type II emissions occur in association with eruptions on the sun and typically indicate a coronal mass ejection is associated with a flare event.
Aktualne dane sugerują, że istnieje niewielkie prawdopodobieństwo pojawienia się zorzy polarnej w następujących regionach o wysokiej szerokości geograficznej w najbliższej przyszłości
Oulu, Rovaniemi, Sodankylä, UtsjokiReykjavik
Kirkenes, Tromsø
Arkhangelsk, Murmansk, Norilsk, Vorkuta
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Alerty
09:15 UTC - Aktywność geomagnetyczna
Umiarkowana burza geomagnetyczna G2 (Kp6) Osiągnięto próg: 08:09 UTC
07:45 UTC - Aktywność geomagnetyczna
Słaba burza geomagnetyczna G1 (Kp5) osiągnięty próg: 06:36 UTC
06:45 UTC - Aktywność geomagnetyczna
Silna burza geomagnetyczna G3 (Kp7) Osiągnięto próg: 05:27 UTC
05:00 UTC - Aktywność geomagnetyczna
Umiarkowana burza geomagnetyczna G2 (Kp6) Osiągnięto próg: 03:46 UTC
04:51 UTC - Rozbłysk słoneczny
Umiarkowany M1.16 rozbłysk słoneczny
Fakty na temat pogody kosmicznej
| Ostatnie rozbłyski klasy X | 2025/11/04 | X1.1 |
| Ostatnie rozbłyski klasy M | 2025/11/06 | M1.1 |
| Ostatnia burza geomagnetyczna | 2025/11/05 | Kp6 (G2) |
| Dni bez plam słonecznych | |
|---|---|
| Ostatni dzień bez skazy | 2022/06/08 |
| Średnia miesięczna liczba plam słonecznych | |
|---|---|
| września 2025 | 129.8 -3.7 |
| listopada 2025 | 64.2 -65.6 |
| Ostatnie 30 dni | 92.3 -36.9 |