Space Environment Watch
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WOXX21 KWNP 261641
WATA30

Space Weather Message Code: WATA30
Serial Number: 280
Issue Time: 2026 Aug 26 1636 UTC

WATCH: Geomagnetic Storm Category G2 Predicted
Highest Storm Level Predicted by Day:
Aug 27:  G1 (Minor)   Aug 28:  G2 (Moderate)   Aug 29:  G2 (Moderate)
THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT

Comment: HSS on 27 + CMEs on 28-29.
CORRECTED
www.swpc.noaa.gov/noaa-scales-explanation
Potential 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.

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