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High solar activity, coronal hole
Solar activity increased to high levels yesterday as sunspot region 2222 produced an M6.1 solar flare at 18:25 UTC. This was actually one of two M-class solar flares yesterday as the same same region produced an M1.3 solar flare at 08:56 UTC on the same day. Just now as we were writing this news article, sunspot region 2222 released yet another M-class solar flare: M1.5 at 12:25 UTC. Did any of these eruptions launch a coronal mass ejection? We are keeping our attention on the Sun and another solar feature you can't miss right now is a large and dark coronal hole which is located on the Sun's southern hemisphere and directly facing earth right now. Will this coronal hole bring us enhanced solar wind conditions and thus aurora in the coming days?
Current data suggests there is a slight possibility for aurora to appear at the following high latitude regions in the near future
NorilskLatest news
Coronal hole faces Earth
Strong G3 geomagnetic storm watch for 23 March
Coronal hole faces Earth
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Latest alerts
13:00 UTC - Type II Radio Emission
Begin Time: 25/03/2025 12:36 UTC Estimated Velocity: 516km/sec.
Monday, 24 March 2025
Coronal hole faces Earth
The anticipated strong G3 geomagnetic storm watch never materialized as the coronal mass ejection that was supposed to arrive early yesterday didn't arrive until today just past midnight UTC. The impact was very lackluster with the Bt (total strength of the IMF) increasing to a moderate 15nT at best and the solar wind speed reaching just 420km/s. A far cry from the anticipated 700 to 800km/s. That once again goes to show how hard it is to forecast space weather events and any resulting geomagnetic conditions. We remain under the influence of the CME and high latitude sky watchers should remain alert for some nice aurora displays but middle latitude sky watchers will probably have to wait for the next opportunity.
13:55 UTC - Coronal hole
A transequatorial coronal hole is facing Earth. Enhanced solar wind could arrive in ~3 days
02:45 UTC - Geomagnetic activity
Active geomagnetic conditions (Kp4) Threshold Reached: 02:33 UTC
Space weather facts
| Last X-flare | 2025/02/23 | X2.0 |
| Last M-flare | 2025/03/21 | M1.2 |
| Last geomagnetic storm | 2025/03/22 | Kp6- (G2) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| February 2025 | 154.6 +17.6 |
| March 2025 | 138.3 -16.4 |
| Last 30 days | 136.1 -18.1 |