Local 3/3/2026, 11:05:46 PM
UTC 2026-03-03T23:05:46.217Z
Space Weather Message Code: WATA20Serial Number: 1098Issue Time: 2026 Mar 03 2305 UTCWATCH: Geomagnetic Storm Category G1 PredictedHighest Storm Level Predicted by Day:Mar 04: None (Below G1) Mar 05: None (Below G1) Mar 06: G1 (Minor)THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECTNOAA 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 3/3/2026, 10:48:29 PM
UTC 2026-03-03T22:48:29.190Z
Space Weather Message Code: ALTK05Serial Number: 1971Issue Time: 2026 Mar 03 2248 UTCALERT: Geomagnetic K-index of 5Threshold Reached: 2026 Mar 03 2248 UTCSynoptic Period: 2100-2400 UTCActive Warning: YesNOAA 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 3/3/2026, 10:32:24 PM
UTC 2026-03-03T22:32:24.860Z
Space Weather Message Code: WARK05Serial Number: 2202Issue Time: 2026 Mar 03 2232 UTCWARNING: Geomagnetic K-index of 5 expectedValid From: 2026 Mar 03 2230 UTCValid To: 2026 Mar 04 0300 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 3/3/2026, 10:30:25 PM
UTC 2026-03-03T22:30:25.437Z
Space Weather Message Code: WARK05Serial Number: 2202Issue Time: 2026 Mar 03 2230 UTCWARNING: Geomagnetic K-index of 5 expectedValid From: 2026 Mar 03 2230 UTCValid To: 2026 Mar 04 0300 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 3/3/2026, 10:28:38 PM
UTC 2026-03-03T22:28:38.590Z
Space Weather Message Code: ALTK04Serial Number: 2637Issue Time: 2026 Mar 03 2228 UTCALERT: Geomagnetic K-index of 4Threshold Reached: 2026 Mar 03 2228 UTCSynoptic Period: 2100-2400 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 3/3/2026, 10:08:18 PM
UTC 2026-03-03T22:08:18.237Z
Space Weather Message Code: WARK04Serial Number: 5276Issue Time: 2026 Mar 03 2208 UTCWARNING: Geomagnetic K-index of 4 expectedValid From: 2026 Mar 03 2208 UTCValid To: 2026 Mar 04 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.