Space Weather Message Code: WARK04
Serial Number: 2980
Issue Time: 2016 Sep 21 0211 UTC
CANCEL WARNING: Geomagnetic K-index of 4 expected
Cancel Serial Number: 2979
Original Issue Time: 2016 Sep 19 1536 UTC
Comment: Cancelling and reissuing to correct valid time.
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.