Seattle, WA
Center Weather Service Unit
Plaese go to the Space Weather Prediction Center for more information. Please note:
Items in grey italics apparently are older than 24 hours
506
WOXX13 KWNP 192031
WARK04
Space Weather Message Code: WARK04
Serial Number: 4845
Issue Time: 2025 Feb 19 2025 UTC
WARNING: Geomagnetic K-index of 4 expected
Valid From: 2025 Feb 19 2024 UTC
Valid To: 2025 Feb 20 0600 UTC
Warning Condition: Onset
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
510
WOXX11 KWNP 190806
WARK05
Space Weather Message Code: WARK05
Serial Number: 1977
Issue Time: 2025 Feb 19 0804 UTC
WARNING: Geomagnetic K-index of 5 expected
Valid From: 2025 Feb 19 0804 UTC
Valid To: 2025 Feb 19 1500 UTC
Warning Condition: Onset
NOAA Scale: G1 - Minor
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.
# 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
US Dept of Commerce
National Oceanic and Atmospheric Administration
National Weather Service
Seattle, WA
3101 Auburn Way South
Auburn, WA 98092
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