Latest Alerts

  1. WARNING: Geomagnetic K-index of 4 expected K04W

    Local 3/10/2026, 1:09:50 AM

    UTC 2026-03-10T01:09:50.990Z

    Space Weather Message Code: WARK04Serial Number: 5280Issue Time: 2026 Mar 10 0109 UTCWARNING: Geomagnetic K-index of 4 expectedValid From: 2026 Mar 10 0110 UTCValid To: 2026 Mar 10 0600 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.

  1. EF3AEF3A

    Local 3/9/2026, 2:42:43 PM

    UTC 2026-03-09T14:42:43.717Z

    Space Weather Message Code: ALTEF3Serial Number: 3642Issue Time: 2026 Mar 09 1442 UTCCONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfuContinuation of Serial Number: 3641Begin Time: 2026 Mar 08 1510 UTCYesterday Maximum 2MeV Flux: 2161 pfuPotential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.

  1. ALERT: Electron 2MeV Integral Flux exceeded 1000pfu EF3A

    Local 3/8/2026, 3:27:31 PM

    UTC 2026-03-08T15:27:31.083Z

    Space Weather Message Code: ALTEF3Serial Number: 3641Issue Time: 2026 Mar 08 1527 UTCALERT: Electron 2MeV Integral Flux exceeded 1000pfuThreshold Reached: 2026 Mar 08 1510 UTCStation: GOES19Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.

  1. K04WK04W

    Local 3/8/2026, 2:58:33 PM

    UTC 2026-03-08T14:58:33.500Z

    Space Weather Message Code: WARK04Serial Number: 5279Issue Time: 2026 Mar 08 1458 UTCEXTENDED WARNING: Geomagnetic K-index of 4 expectedExtension to Serial Number: 5278Valid From: 2026 Mar 07 0025 UTCNow Valid Until: 2026 Mar 09 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.

  1. K05WK05W

    Local 3/8/2026, 2:55:43 PM

    UTC 2026-03-08T14:55:43.760Z

    Space Weather Message Code: WARK05Serial Number: 2204Issue Time: 2026 Mar 08 1455 UTCEXTENDED WARNING: Geomagnetic K-index of 5 expectedExtension to Serial Number: 2203Valid From: 2026 Mar 08 0149 UTCNow Valid Until: 2026 Mar 08 2359 UTCWarning Condition: PersistenceNOAA 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.