Update: S1-S2 Warning Extended to 8 September/2359 UTC
published: Saturday, September 9, 2017 02:04 UTC UTC
The S1-S2 (Minor-Moderate) solar radiation storm warning for the 10 MeV protons was extended and is now in effect until 8 September at 2359 UTC (8/19:59 ET). Keep checking our SWPC website for the latest alerts, warnings, and forecasts.