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WOXX13 KWNP 210241

ALTK04



Space Weather Message Code: ALTK04

Serial Number: 2405

Issue Time: 2023 Oct 21 0239 UTC



ALERT: Geomagnetic K-index of 4

Begin Time: 2023 Oct 21 0238 UTC

www.swpc.noaa.gov/noaa-scales-explanation

Potential 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.



# Issued by the US Dept. of Commerce, NOAA, Space Weather Prediction Center

# Recent messages, data, and help at http://swpc.noaa.gov/alerts/

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