Space Weather Message Code: WARK04
Serial Number: 2940
Issue Time: 2016 Aug 10 0848 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 2939
Valid From: 2016 Aug 09 2230 UTC
Now Valid Until: 2016 Aug 10 1600 UTC
Warning Condition: Onset
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.