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M3.9 solar flare, S1 radiation storm
M-class flaring continues today from sunspot region 2975 with an M2.9 solar flare this night and a spectacular long duration M3.9 solar flare at 13:55 UTC. While writing this news article, we see yet another M-class flare from this region peaking at M4.3 but this solar flare looks much more impulsive and might not release a CME, but it is still way too early to tell.
Latest news
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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AR4062 45Incoming & Unnumbered Active Regions 1755AR4064 132025/04/12-13 Filament CMEs 2025/04/16 G3 Watch 535GLE. Ground Level Enhancements 12
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Space weather facts
| Last X-flare | 2025/03/28 | X1.1 |
| Last M-flare | 2025/04/15 | M1.2 |
| Last geomagnetic storm | 2025/04/16 | Kp8- (G4) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| March 2025 | 134.2 -20.4 |
| April 2025 | 120.5 -13.7 |
| Last 30 days | 116.6 -25.7 |