WARNING: Geomagnetic K-index of 7 or greater expected

Space Weather Message Code: WARK07


Serial Number: 37

Issue Time: 2012 Apr 24 0204 UTC


WARNING: Geomagnetic K-index of 7 or greater expected

Valid From: 2012 Apr 24 0205 UTC

Valid To: 2012 Apr 24 0600 UTC

Warning Condition: Onset

NOAA Scale: G3 or greater - Strong to Extreme

NOAA Space Weather Scale descriptions can be found at

www.swpc.noaa.gov/NOAAscales

Potential Impacts: Area of impact primarily poleward of 50 degrees Geomagnetic Latitude.

Induced Currents - Power system voltage irregularities possible, false alarms may be triggered on some protection devices.

Spacecraft - Systems may experience surface charging; increased drag on low Earth-orbit satellites and orientation problems may occur.

Navigation - Intermittent satellite navigation (GPS) problems, including loss-of-lock and increased range error may occur.

Radio - HF (high frequency) radio may be intermittent.

Aurora - Aurora may be seen as low as Pennsylvania to Iowa to Oregon.


Editor's note:  Brace yourself for more extrem weather, quakes and eruptions.