Local 3/30/2026, 8:55:41 AM
UTC 2026-03-30T08:55:41.077Z
Space Weather Message Code: WARK04Serial Number: 5305Issue Time: 2026 Mar 30 0855 UTCEXTENDED WARNING: Geomagnetic K-index of 4 expectedExtension to Serial Number: 5304Valid From: 2026 Mar 29 1546 UTCNow Valid Until: 2026 Mar 30 2359 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 3/30/2026, 7:42:30 AM
UTC 2026-03-30T07:42:30.013Z
Space Weather Message Code: ALTEF3Serial Number: 3661Issue Time: 2026 Mar 30 0742 UTCCONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfuContinuation of Serial Number: 3660Begin Time: 2026 Mar 22 1430 UTCYesterday Maximum 2MeV Flux: 3755 pfuPotential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.
Local 3/30/2026, 6:27:43 AM
UTC 2026-03-30T06:27:43.707Z
Space Weather Message Code: WATA30Serial Number: 268Issue Time: 2026 Mar 30 0627 UTCWATCH: Geomagnetic Storm Category G2 PredictedHighest Storm Level Predicted by Day:Mar 30: G1 (Minor) Mar 31: G2 (Moderate) Apr 01: 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 55 degrees Geomagnetic Latitude.Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.Radio - HF (high frequency) radio propagation can fade at higher latitudes.Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.
Local 3/30/2026, 5:43:50 AM
UTC 2026-03-30T05:43:50.183Z
Space Weather Message Code: SUM10RSerial Number: 903Issue Time: 2026 Mar 30 0543 UTCSUMMARY: 10cm Radio BurstBegin Time: 2026 Mar 30 0254 UTCMaximum Time: 2026 Mar 30 0304 UTCEnd Time: 2026 Mar 30 0342 UTCDuration: 48 minutesPeak Flux: 1800 sfuLatest Penticton Noon Flux: 158 sfuDescription: A 10cm radio burst indicates that the electromagnetic burst associated with a solar flare at the 10cm wavelength was double or greater than the initial 10cm radio background. This can be indicative of significant radio noise in association with a solar flare. This noise is generally short-lived but can cause interference for sensitive receivers including radar, GPS, and satellite communications.
Local 3/30/2026, 5:18:40 AM
UTC 2026-03-30T05:18:40.317Z
Space Weather Message Code: SUMX01Serial Number: 214Issue Time: 2026 Mar 30 0518 UTCSUMMARY: X-ray Event exceeded X1Begin Time: 2026 Mar 30 0247 UTCMaximum Time: 2026 Mar 30 0319 UTCEnd Time: 2026 Mar 30 0344 UTCX-ray Class: X1,4Location: S27E42NOAA Scale: R3 - StrongNOAA Space Weather Scale descriptions can be found atwww.swpc.noaa.gov/noaa-scales-explanationPotential Impacts: Area of impact consists of large portions of the sunlit side of Earth, strongest at the sub-solar point.Radio - Wide area blackout of HF (high frequency) radio communication for about an hour.
Local 3/30/2026, 5:16:51 AM
UTC 2026-03-30T05:16:51.260Z
Space Weather Message Code: SUMX01Serial Number: 213Issue Time: 2026 Mar 30 0516 UTCCANCEL SUMMARY: X-ray Event exceeded X1Cancel Serial Number: 212Original Issue Time: 2026 Mar 30 0353 UTCComment: The flare maximum was recorded as an X1.4.NOAA Space Weather Scale descriptions can be found atwww.swpc.noaa.gov/noaa-scales-explanationPotential Impacts: Area of impact consists of large portions of the sunlit side of Earth, strongest at the sub-solar point.Radio - Wide area blackout of HF (high frequency) radio communication for about an hour.
Local 3/30/2026, 3:53:14 AM
UTC 2026-03-30T03:53:14.100Z
Space Weather Message Code: SUMX01Serial Number: 212Issue Time: 2026 Mar 30 0353 UTCSUMMARY: X-ray Event exceeded X1Begin Time: 2026 Mar 30 0247 UTCMaximum Time: 2026 Mar 30 0319 UTCEnd Time: 2026 Mar 30 0344 UTCX-ray Class: X1.5Location: S27E42NOAA Scale: R3 - StrongNOAA Space Weather Scale descriptions can be found atwww.swpc.noaa.gov/noaa-scales-explanationPotential Impacts: Area of impact consists of large portions of the sunlit side of Earth, strongest at the sub-solar point.Radio - Wide area blackout of HF (high frequency) radio communication for about an hour.
Local 3/30/2026, 3:22:36 AM
UTC 2026-03-30T03:22:36.183Z
Space Weather Message Code: ALTTP2Serial Number: 1473Issue Time: 2026 Mar 30 0322 UTCALERT: Type II Radio EmissionBegin Time: 2026 Mar 30 0300 UTCEstimated Velocity: 1872 km/sDescription: Type II emissions occur in association with eruptions on the sun and typically indicate a coronal mass ejection is associated with a flare event.
Local 3/30/2026, 3:07:57 AM
UTC 2026-03-30T03:07:57.773Z
Space Weather Message Code: ALTXMFSerial Number: 521Issue Time: 2026 Mar 30 0307 UTCALERT: X-Ray Flux exceeded M5Threshold Reached: 2026 Mar 30 0306 UTCNOAA Scale: R2 - ModerateNOAA Space Weather Scale descriptions can be found atwww.swpc.noaa.gov/noaa-scales-explanationPotential Impacts: Area of impact centered on sub-solar point on the sunlit side of Earth. Extent of blackout of HF (high frequency) radio communication dependent upon current X-ray Flux intensity. For real-time information on affected area and expected duration please see http://www.swpc.noaa.gov/products/d-region-absorption-predictions-d-rap.
Local 3/29/2026, 3:48:24 PM
UTC 2026-03-29T15:48:24.040Z
Space Weather Message Code: WARK04Serial Number: 5304Issue Time: 2026 Mar 29 1548 UTCWARNING: Geomagnetic K-index of 4 expectedValid From: 2026 Mar 29 1546 UTCValid To: 2026 Mar 30 0900 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 3/29/2026, 12:47:46 PM
UTC 2026-03-29T12:47:46.350Z
Space Weather Message Code: ALTEF3Serial Number: 3660Issue Time: 2026 Mar 29 1247 UTCCONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfuContinuation of Serial Number: 3659Begin Time: 2026 Mar 22 1430 UTCYesterday Maximum 2MeV Flux: 1596 pfuPotential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.