Local 2/27/2026, 4:59:48 AM
UTC 2026-02-27T04:59:48.390Z
Space Weather Message Code: ALTEF3Serial Number: 3636Issue Time: 2026 Feb 27 0459 UTCCONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfuContinuation of Serial Number: 3635Begin Time: 2026 Feb 23 1045 UTCYesterday Maximum 2MeV Flux: 7303 pfuPotential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.
Local 2/26/2026, 11:55:38 AM
UTC 2026-02-26T11:55:38.020Z
Space Weather Message Code: WARK04Serial Number: 5275Issue Time: 2026 Feb 26 1155 UTCEXTENDED WARNING: Geomagnetic K-index of 4 expectedExtension to Serial Number: 5274Valid From: 2026 Feb 25 2140 UTCNow Valid Until: 2026 Feb 26 1800 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 2/26/2026, 4:59:45 AM
UTC 2026-02-26T04:59:45.753Z
Space Weather Message Code: ALTEF3Serial Number: 3635Issue Time: 2026 Feb 26 0459 UTCCONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfuContinuation of Serial Number: 3634Begin Time: 2026 Feb 23 1045 UTCYesterday Maximum 2MeV Flux: 10494 pfuPotential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.
Local 2/26/2026, 1:10:04 AM
UTC 2026-02-26T01:10:04.920Z
Space Weather Message Code: WARK05Serial Number: 2201Issue Time: 2026 Feb 26 0110 UTCWARNING: Geomagnetic K-index of 5 expectedValid From: 2026 Feb 26 0109 UTCValid To: 2026 Feb 26 0900 UTCWarning Condition: OnsetNOAA Scale: G1 - MinorNOAA Space Weather Scale descriptions can be found atwww.swpc.noaa.gov/noaa-scales-explanationPotential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.Induced Currents - Weak power grid fluctuations can occur.Spacecraft - Minor impact on satellite operations possible.Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.
Local 2/26/2026, 1:08:45 AM
UTC 2026-02-26T01:08:45.920Z
Space Weather Message Code: WARK04Serial Number: 5274Issue Time: 2026 Feb 26 0108 UTCEXTENDED WARNING: Geomagnetic K-index of 4 expectedExtension to Serial Number: 5273Valid From: 2026 Feb 25 2140 UTCNow Valid Until: 2026 Feb 26 1200 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.