Ref:
http://spaceweather.com/
AURORA OUTLOOK: Sky
watchers should be alert for auroras
tonight. A solar wind stream is flowing
toward Earth from a coronal hole on
the sun, and auroras could appear
when the stream arrives on March
9th or 10th. The best displays will be
at high latitudes--e.g., Alaska, Canada,
and perhaps northern-tier US states
like Wisconsin and Minnesota.
Space Weather Message Code: WARK05
Serial Number: 415
Issue Time: 2004 Mar 09 1638 UTC
WARNING: Geomagnetic K-index of 5 expected
Valid From: 2004 Mar 09 1645 UTC
Valid To: 2004 Mar 09 2359 UTC
Warning Condition: Onset
-Sam Wormley
http://edu-observatory.org/eo/aurora.html