Local 4/12/2026, 1:17:14 PM
UTC 2026-04-12T13:17:14.360Z
Space Weather Message Code: ALTEF3Serial Number: 3673Issue Time: 2026 Apr 12 1317 UTCCONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfuContinuation of Serial Number: 3672Begin Time: 2026 Apr 03 0920 UTCYesterday Maximum 2MeV Flux: 1082 pfuPotential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.
Local 4/12/2026, 9:45:25 AM
UTC 2026-04-12T09:45:25.183Z
Space Weather Message Code: WARK04Serial Number: 5317Issue Time: 2026 Apr 12 0945 UTCCANCEL WARNING: Geomagnetic K-index of 4 expectedCancel Serial Number: 5316Original Issue Time: 2026 Apr 10 0143 UTCComment: Active conditions (Kp=4) are no longer expected to occur.NOAA 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 4/11/2026, 5:56:04 PM
UTC 2026-04-11T17:56:04.477Z
Space Weather Message Code: WARK04Serial Number: 5316Issue Time: 2026 Apr 11 1756 UTCEXTENDED WARNING: Geomagnetic K-index of 4 expectedExtension to Serial Number: 5315Valid From: 2026 Apr 10 0145 UTCNow Valid Until: 2026 Apr 12 1500 UTCWarning Condition: PersistenceNOAA 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 4/11/2026, 1:06:43 PM
UTC 2026-04-11T13:06:43.880Z
Space Weather Message Code: ALTEF3Serial Number: 3672Issue Time: 2026 Apr 11 1306 UTCCONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfuContinuation of Serial Number: 3671Begin Time: 2026 Apr 03 0920 UTCYesterday Maximum 2MeV Flux: 1714 pfuPotential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.