Coronal hole faces Earth
Saturday, 2 December 2023 15:37 UTC
The geomagnetic storm which was the result of a coronal mass ejection impact from the M9.8 solar flare has now subsided. The north-south (Bz) component of the interplanetary magnetic field is pointing northwards which is preventing any kind of geomagnetic unrest at the moment. We did peak at the strong G3 geomagnetic storm level which caused some very nice auroral displays at lower latitudes than usual. So does that mean we need to wait for weeks and weeks before the next geomagnetic storm? No! A very large coronal hole is currently facing our planet sending a high-speed solar wind stream towards us.
This high speed solar wind stream flowing from this coronal hole is expected to arrive at our planet on Monday, 4 December. Solar wind speeds of about 700km/s are expected. Expect more geomagnetic storming up to the moderate G2 geomagnetic storm level (Kp6) after the solar wind stream arrives. Be sure to keep an eye on the data here on our website or download the SpaceWeatherLive app to your mobile device where we even provide a whole raft of space weather alerts which you can customize as you wish!
A southern hemisphere coronal hole is facing Earth. Enhanced solar wind could arrive in ~3 days - Follow live on https://t.co/bsXLidnzGh pic.twitter.com/B0zEM8QWMS
— SpaceWeatherLive (@_SpaceWeather_) December 2, 2023
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Space weather facts
| Last X-flare | 2025/12/01 | X1.9 |
| Last M-flare | 2025/12/04 | M6.0 |
| Last geomagnetic storm | 2025/12/04 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| November 2025 | 91.8 -22.8 |
| December 2025 | 186 +94.2 |
| Last 30 days | 106.3 +12.6 |