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Bulletin on solar and geomagnetic activity Solar activity report
Geophysical report
Sunspot regions
Coronal holes
Kp values
Solar flares
Radiation storms
Solar wind (Speed, Density), Interplanetary Magnetic Field (IMF) (Bt, Bz)
CME impact expected, G3 storm watch
What a day yesterday. The spectacular X1.0 solar flare (which is the second strongest solar flare of the current Solar Cycle thus far) launched a magnificent coronal mass ejection into space. Sunspot region 2887 was in a perfect earth-facing position at the time of the eruption and it was no secret that the cloud of solar plasma would have an earth-directed component. What could we expect for the coming Halloween weekend? Stay tuned!
Latest news
Wednesday, 14 May 2025
Another X-flare! Potent sunspot region 4087!
Tuesday, 13 May 2025
X1.1 solar flare from sunspot region 4086
Tuesday, 15 April 2025
CME arrival, G3 storm watch
Latest forum messages
AR4087 214Growth of Cycle 25 900Incoming & Unnumbered Active Regions 1904Upper atmosphere phenomena Red sprites and Blue jets 25AR 14093 12
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Space weather facts
| Last X-flare | 2025/05/14 | X2.7 |
| Last M-flare | 2025/05/21 | M1.2 |
| Last geomagnetic storm | 2025/05/17 | Kp6+ (G2) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| April 2025 | 140.6 +6.4 |
| May 2025 | 69.6 -71 |
| Last 30 days | 86.9 -26 |