ALERT: Geomagnetic K-index of 5

Category
Natural disaster
Source
NOAA Space Weather

Space Weather Message Code: ALTK05 Serial Number: 2059 Issue Time: 2026 Oct 31 1907 UTC

ALERT: Geomagnetic K-index of 5 Threshold Reached: 2026 Oct 31 1907 UTC Synoptic Period: 1800-2100 Active Warning: YES Noaa Scale: G1 - Minor Comment:

NOAA Scale: G1 - Minor

NOAA Space Weather Scale descriptions can be found at www.swpc.noaa.gov/noaa-scales-explanation

Potential 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.

Source: NOAA Space Weather

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