Below you'll find a daily report brought to you by the NOAA about the solar activity and geophysical activity during the past day and the prediction for the coming days. This page is daily updated around midnight.
Solar and Geophysical Activity Summary 2025 Apr 24 0245 UTCBegin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 2152 2152 2152 130
10 cm 167 SSN 132 Afr/Ap 009/??? X-ray Background C1.0 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 2.6e+06 GT 10 MeV 1.6e+04 p/(cm2-ster-day) (GOES-18 satellite synchronous orbit W137 degrees) Daily Electron Fluence GT 2 MeV 2.90e+07 e/(cm2-ster-day) (GOES-19 satellite synchronous orbit W75 degrees) 3 Hour K-indices Boulder 1 3 2 3 2 2 2 1 Planetary 2 3 2 3 2 1 1 1
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The OVATION model predicts the Hemispheric Power Index to reach 50GW at 08:15 UTC
Active geomagnetic conditions (Kp4) Threshold Reached: 07:03 UTC
CME impact detected - Current Solar Wind Speed 644km/sec - IMF: Bt (strength): 15nT & Bz: 0nT (South).
Last X-flare | 2025/03/28 | X1.1 |
Last M-flare | 2025/04/22 | M1.3 |
Last geomagnetic storm | 2025/04/21 | Kp5+ (G1) |
Spotless days | |
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Last spotless day | 2022/06/08 |
Monthly mean Sunspot Number | |
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March 2025 | 134.2 -20.4 |
April 2025 | 122.8 -11.4 |
Last 30 days | 117.7 -15.6 |