011
WOXX11 KWNP 231506
ALTK05

Space Weather Message Code: ALTK05
Serial Number: 1832
Issue Time: 2025 Jul 23 1504 UTC

ALERT: Geomagnetic K-index of 5
Synoptic Period: 1200-1500 UTC
Active Warning: Yes
NOAA Scale: G1 - Minor

Comment: Minor geomagnetic storming levels were reached due to continued negative polarity CH HSS effects.
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.

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