ALERT: Geomagnetic K-index of 4

Space Weather Message Code: ALTK04

Serial Number: 1436

Issue Time: 2010 Mar 20 0839 UTC

ALERT: Geomagnetic K-index of 4

Threshold Reached: 2010 Mar 20 0838 UTC

Synoptic Period: 0600-0900 UTC

Station: Boulder

Active Warning: No

NOAA Space Weather Scale descriptions can be found at

www.swpc.noaa.gov/NOAAscales