Coronal mass ejection arrival

Sunday, 26 February 2023 19:43 UTC

The coronal mass ejection arrived slightly earlier than expected which is good news. The solar wind speed has increased to over 500km/s with a total strength of the interplanetary field just under 20nT. The north-south direction of the IMF (Bz) has turned southward and is holding below -10nT at the moment. Minor G1 geomagnetic storm conditions are very much possible if these conditions hold.

This is the first of two coronal mass ejections that are expected to arrive. Tomorrow (27 February) we are expected to see the impact of the M6 coronal mass ejection which likely will be a stronger impact. The NOAA SWPC has issued a strong G3 geomagnetic storm watch for tomorrow, 27 February in response. Keep an eye on the data in the coming days right here on SpaceWeatherLive!