https://www.swpc.noaa.gov/products/alerts-watches-and-warnings
Space Weather Message Code: WATA99
Serial Number: 8
Issue Time: 2024 Oct 09 1233 UTC
WATCH: Geomagnetic Storm Category G4 or Greater Predicted
Highest Storm Level Predicted by Day:
Oct 10: G4 (Severe) Oct 11: G4 (Severe) Oct 12: G1 (Minor)
THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 45 degrees Geomagnetic Latitude.
Induced Currents - Possible widespread voltage control problems and some protective systems may mistakenly trip out key assets from the power grid. Induced pipeline currents intensify.
Spacecraft - Systems may experience surface charging; increased drag on low earth orbit satellites, and tracking and orientation problems may occur.
Navigation - Satellite navigation (GPS) degraded or inoperable for hours.
Radio - HF (high frequency) radio propagation sporadic or blacked out.
Aurora - Aurora may be seen as low as Alabama and northern California.
