Arctic air will continue below normal temperatures across the eastern half of the U.S. through Tuesday with heavy lake-effect snow continuing downwind of the Great Lakes. High pressure over the western half of the U.S. will support mainly dry weather for much of the region with above normal temperatures this week. Read More >
Plaese go to the Space Weather Prediction Center for more information.
Items in grey italics apparently are older than 24 hours
822
WOXX21 KWNP 291736
WATA30
Space Weather Message Code: WATA30
Serial Number: 246
Issue Time: 2024 Nov 29 1734 UTC
CANCEL WATCH: Geomagnetic Storm Category G2 Predicted
Cancel Serial Number: 245
Original Issue Time: 2024 Nov 26 1749 UTC
Comment: G2 conditions are no longer anticipated.
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.
# 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
792
WOXX13 KWNP 300121
WARK04
Space Weather Message Code: WARK04
Serial Number: 4764
Issue Time: 2024 Nov 30 0115 UTC
WARNING: Geomagnetic K-index of 4 expected
Valid From: 2024 Nov 30 0112 UTC
Valid To: 2024 Nov 30 1500 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
551
WOXX11 KWNP 300201
WARK05
Space Weather Message Code: WARK05
Serial Number: 1954
Issue Time: 2024 Nov 30 0155 UTC
WARNING: Geomagnetic K-index of 5 expected
Valid From: 2024 Nov 30 0155 UTC
Valid To: 2024 Nov 30 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
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