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WOXX13 KWNP 211501
ALTK04

Space Weather Message Code: ALTK04
Serial Number: 2440
Issue Time: 2024 Apr 21 1456 UTC

ALERT: Geomagnetic K-index of 4
Synoptic Period: 1200-1500 UTC
Active Warning: Yes
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/
# Send questions to SWPC.Webmaster@noaa.gov
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  • Page last modified: Sep 19th, 2023 19:10 UTC