Space Weather Message Code: WARK04
Serial Number: 4233
Issue Time: 2023 Jan 01 2354 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4232
Valid From: 2023 Jan 01 2131 UTC
Now Valid Until: 2023 Jan 02 0900 UTC
Warning Condition: Persistence
NOAA Space Weather Scale descriptions can be found at
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.
Space Weather Message Code: WARK04
Serial Number: 4231
Issue Time: 2023 Jan 01 0558 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4230
Valid From: 2022 Dec 31 2040 UTC
Now Valid Until: 2023 Jan 01 1200 UTC
Warning Condition: Persistence
NOAA Space Weather Scale descriptions can be found at
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.