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NOAA G2 watch, April Fools
There is a lot of hype at the moment as the NOAA SWPC issued a watch for possible moderate G2 geomagnetic storming conditions today. This is in response to a coronal hole solar wind stream that is supposed to arrive at Earth today. The solar wind density is currently rising so we might be seeing the first effects of this stream right now.
Latest news
CME arrival, G3 storm watch
X1.1 solar flare
Coronal hole faces Earth
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Latest alerts
12:00 UTC - Geomagnetic activity
Minor G1 geomagnetic storm (Kp5) Threshold Reached: 11:42 UTC
09:39 UTC - Hemispheric Power Index
The OVATION model predicts the Hemispheric Power Index to reach 76GW at 10:30 UTC
03:39 UTC - Hemispheric Power Index
The OVATION model predicts the Hemispheric Power Index to reach 51GW at 04:37 UTC
02:30 UTC - Geomagnetic activity
Active geomagnetic conditions (Kp4) Threshold Reached: 02:24 UTC
Sunday, 20 April 2025
12:30 UTC - Solar flare
Moderate M1.02 flare
Space weather facts
| Last X-flare | 2025/03/28 | X1.1 |
| Last M-flare | 2025/04/20 | M1.0 |
| Last geomagnetic storm | 2025/04/20 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| March 2025 | 134.2 -20.4 |
| April 2025 | 119.2 -15 |
| Last 30 days | 113.3 -31 |