Local 3/19/2026, 4:59:20 AM
UTC 2026-03-19T04:59:20.403Z
Space Weather Message Code: ALTEF3Serial Number: 3651Issue Time: 2026 Mar 19 0459 UTCCONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfuContinuation of Serial Number: 3650Begin Time: 2026 Mar 15 1630 UTCYesterday Maximum 2MeV Flux: 2949 pfuPotential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.
Local 3/18/2026, 9:14:07 PM
UTC 2026-03-18T21:14:07.740Z
Space Weather Message Code: WATA30Serial Number: 265Issue Time: 2026 Mar 18 2114 UTCWATCH: Geomagnetic Storm Category G2 PredictedHighest Storm Level Predicted by Day:Mar 19: G2 (Moderate) Mar 20: G2 (Moderate) Mar 21: G2 (Moderate)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 3/18/2026, 9:03:34 AM
UTC 2026-03-18T09:03:34.557Z
Space Weather Message Code: SUM10RSerial Number: 902Issue Time: 2026 Mar 18 0903 UTCSUMMARY: 10cm Radio BurstBegin Time: 2026 Mar 18 0833 UTCMaximum Time: 2026 Mar 18 0835 UTCEnd Time: 2026 Mar 18 0839 UTCDuration: 6 minutesPeak Flux: 229 sfuLatest Penticton Noon Flux: 111 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 3/18/2026, 8:59:48 AM
UTC 2026-03-18T08:59:48.527Z
Space Weather Message Code: ALTTP2Serial Number: 1470Issue Time: 2026 Mar 18 0859 UTCALERT: Type II Radio EmissionBegin Time: 2026 Mar 18 0840 UTCEstimated Velocity: 866 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 3/18/2026, 4:59:44 AM
UTC 2026-03-18T04:59:44.273Z
Space Weather Message Code: ALTEF3Serial Number: 3650Issue Time: 2026 Mar 18 0459 UTCCONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfuContinuation of Serial Number: 3649Begin Time: 2026 Mar 15 1630 UTCYesterday Maximum 2MeV Flux: 2233 pfuPotential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.