From NOAA: Space Weather Message Code: ALTK08 Serial Number: 30 Issue Time: 2024 Mar 24 1629 UTC ALERT: Geomagnetic K-index of 8, 9- Threshold Reached: 2024 Mar 24 1628 UTC Synoptic Period: 1500-1800 UTC Active Warning: Yes NOAA Scale: G4 - Severe

Bz going south again at -4 nT. Needs to be strongly negative for a good light show. It was positive a little earlier which was a bummer.

Well that was weird. Came fast, hit hard, and left quick. So much for a nice show tonight.