Space Weather
The BGS (British Geological Survey) has issued a rare geomagnetic storm forecast covering the period until midnight UT 23 March. Note that this forecast does not account for the increased activity we saw this afternoon at mid-latitudes, which could have been the storm arriving very early!
BGS: Yesterday afternoon a faint but fast Earth-directed CME was observed. The source was a filament eruption from a central location on the solar disk, associated with a M1 solar flare from a nearby active region.
BGS: Models suggest this may arrive in the first forecast interval (late 22, or early 23). The combination of CME impacts and a high-speed solar wind stream from a coronal hole may result in STORM activity.
BGS: As we are near the equinox, when the Earth is more susceptible to solar activity, it is possible geomagnetic activity could reach STORM G3.
https://geomag.bgs.ac.uk/data_service/space_weather/3dforecast.html