Viewing archive of Tuesday, 23 June 2015

Select the desired archive item

Second strongest storm, M6.6 CME analysis

We are still very much under the influence of the 21 June coronal mass ejection that arrived yesterday evening. The NOAA SWPC reported that the severe G4 geomagnetic storming threshold was reached and the Wing Kp-index even went up to Kp9 which stands for extreme G5 geomagnetic storm conditions, but the G5 reported by the Wing-Kp is questionable. The disturbance storm time index (another way of classifying geomagnetic storms where a lower number means a stronger storm) reached -195nT (for now at least) which makes this the second strongest geomagnetic storm of this solar cycle. The 2015/03/17 geomagnetic storm remains the strongest storm of this solarcycle with a Dst of -221 nT.

Read more

Current data suggests there is a slight possibility for aurora to appear at the following high latitude regions in the near future

Iqaluit, NU
Nuuk
Reykjavik

Latest news

Support SpaceWeatherLive.com!

A lot of people come to SpaceWeatherLive to follow the Sun's activity or if there is aurora to be seen, but with more traffic comes higher server costs. Consider a donation if you enjoy SpaceWeatherLive so we can keep the website online!

SpaceWeatherLive Pro
Support SpaceWeatherLive with our merchandise
Check out our merchandise

Latest alerts

Friday, 21 February 2025
14:54 UTC - Solar flare

Moderate M1.41 flare

alert


14:39 UTC - Radio Blackout

Minor R1 radio blackout in progress (≥M1 - current: M1.41)


12:33 UTC - Solar flare

Moderate M3.39 flare

alert


12:18 UTC - Radio Blackout

Minor R1 radio blackout in progress (≥M1 - current: M3.39)


Get instant alerts!

Space weather facts

Last X-flare2025/01/04X1.85
Last M-flare2025/02/21M1.4
Last geomagnetic storm2025/02/19Kp5 (G1)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
January 2025137 -17.5
February 2025151.4 +14.4
Last 30 days148.3 -13.8

This day in history*

Solar flares
12024M2.6
22014M1.62
32024M1.5
42023M1.5
52023M1.2
DstG
11988-97G2
21982-92G2
31990-82G1
41973-75G2
51957-73G2
*since 1994

Social networks