Space weather alert

Space Weather Message Code: ALTK04
Serial Number: 1626
Issue Time: 2013 Feb 16 1735 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2013 Feb 16 1730 UTC
Synoptic Period: 1500-1800 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.

Source:

http://www.swpc.noaa.gov/ftpdir/forecasts/ALTS.txt 

http://www.spaceweather.com/