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Bulletin on solar and geomagnetic activity Solar activity report
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Kp values
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Solar wind (Speed, Density), Interplanetary Magnetic Field (IMF) (Bt, Bz)
M6.9 solar flare, sunspot regions 2241 and 2242
Solar activity reached high levels. Sunspot regions 2241 and 2242 are the dominate sunspot regions on the earth-facing disk and it is these two sunspot regions that produce all the activity right now. C-class solar flares are a common sight and we just saw a long duration M6.9 (R2-moderate) solar flare that peaked at 21:58 UTC. Can we expect more strong solar flares from these groups and will this M6.9 solar flare be eruptive?
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Tuesday, 15 April 2025
CME arrival, G3 storm watch
Friday, 28 March 2025
X1.1 solar flare
Monday, 24 March 2025
Coronal hole faces Earth
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Unspecified geomagnetic activity 2378AR 14079 68Power transmission for all of us. And why I believe we are better prepared than ever for major solar events 33Short PBS episode on Aurora sounds 5New satellites - Proba-3, PUNCH, SWFO-L1, GOES-U/19 54
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Space weather facts
| Last X-flare | 2025/03/28 | X1.1 |
| Last M-flare | 2025/04/30 | M2.03 |
| Last geomagnetic storm | 2025/05/02 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| April 2025 | 140.6 +6.4 |
| May 2025 | 59 -81.6 |
| Last 30 days | 119.8 -10.8 |