Space Weather Message Code: WARK04 Serial Number: 2424 Issue - TopicsExpress

Space Weather Message Code: WARK04 Serial Number: 2424 Issue Time: 2014 Dec 30 2155 UTC EXTENDED WARNING: Geomagnetic K-index of 4 expected Extension to Serial Number: 2423 Valid From: 2014 Dec 28 1945 UTC Now Valid Until: 2014 Dec 31 0600 UTC Warning Condition: Persistence NOAA Space Weather Scale descriptions can be found at 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.