CME arrival, G3 storm watch
Tuesday, 15 April 2025 17:55 UTC
A coronal mass ejection has arrived at our planet. This is the first of possibly two coronal mass ejections that were expected to arrive from filament eruptions on April 12 and 13. The minor G1 geomagnetic storm threshold has already been reached and the NOAA SWPC has a strong G3 geomagnetic storm watch in place for tomorrow, 16 April. Keep an eye on the data here on this website in the hours ahead. There is more action to come!
CME impact detected - Current Solar Wind Speed 485km/sec - IMF: Bt (strength): 17nT & Bz: -4nT (South).
— SpaceWeatherLive (@_SpaceWeather_) April 15, 2025
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| Last geomagnetic storm | 2026/04/20 | Kp5 (G1) |
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