The NOAA SWPC has issued a minor G1 geomagnetic storm watch (max Kp of 5) for Saturday evening (15 January) and Sunday 16 January due to the arrival of an anticipated coronal hole solar wind stream.
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Begin Time: 20/02/2025 04:44 UTC Maximum Time: 20/02/2025 04:44 UTC Duration: 1 minutes. Peak flux: 200 sfu
Begin Time: 19/02/2025 23:38 UTC Estimated Velocity: 553km/sec.
The OVATION model predicts the Hemispheric Power Index to reach 55GW at 23:02 UTC
Last X-flare | 2025/01/04 | X1.85 |
Last M-flare | 2025/02/17 | M1.1 |
Last geomagnetic storm | 2025/02/19 | Kp5 (G1) |
Spotless days | |
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Last spotless day | 2022/06/08 |
Monthly mean Sunspot Number | |
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January 2025 | 137 -17.5 |
February 2025 | 153.6 +16.6 |
Last 30 days | 154 -6.5 |