Space Environment Alert
Issued by NWS
WOXX13 KWNP 182210
Space Weather Message Code: ALTK04
Serial Number: 1833
Issue Time: 2015 Nov 18 2207 UTC
ALERT: Geomagnetic K-index of 4
Threshold Reached: 2015 Nov 18 2207 UTC
Synoptic Period: 2100-2400 UTC
Active Warning: Yes
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
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