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WOXX13 KWNP 302321

ALTK04



Space Weather Message Code: ALTK04

Serial Number: 2443

Issue Time: 2024 Apr 30 2316 UTC



ALERT: Geomagnetic K-index of 4

Synoptic Period: 2100-2400 UTC

Active Warning: Yes



Comment: Conditions were likely first reached at approximately 30/1955 UTC. However, a major network outage prevented alert issuance.

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

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