Local 4/10/2026, 2:08:32 AM
UTC 2026-04-10T02:08:32.690Z
Space Weather Message Code: ALTK04Serial Number: 2649Issue Time: 2026 Apr 10 0208 UTCALERT: Geomagnetic K-index of 4Threshold Reached: 2026 Apr 10 0205 UTCSynoptic Period: 0000-0300 UTCActive Warning: YesNOAA Space Weather Scale descriptions can be found atwww.swpc.noaa.gov/noaa-scales-explanationPotential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.Induced Currents - Weak power grid fluctuations can occur.Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
Local 4/10/2026, 1:43:15 AM
UTC 2026-04-10T01:43:15.303Z
Space Weather Message Code: WARK04Serial Number: 5314Issue Time: 2026 Apr 10 0143 UTCWARNING: Geomagnetic K-index of 4 expectedValid From: 2026 Apr 10 0145 UTCValid To: 2026 Apr 10 1500 UTCWarning Condition: OnsetNOAA Space Weather Scale descriptions can be found atwww.swpc.noaa.gov/noaa-scales-explanationPotential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.Induced Currents - Weak power grid fluctuations can occur.Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
Local 4/9/2026, 4:59:35 AM
UTC 2026-04-09T04:59:35.707Z
Space Weather Message Code: ALTEF3Serial Number: 3670Issue Time: 2026 Apr 09 0459 UTCCONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfuContinuation of Serial Number: 3669Begin Time: 2026 Apr 03 0920 UTCYesterday Maximum 2MeV Flux: 7322 pfuPotential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.