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WOXX22 KWNP 140910

Space Weather Message Code: WATA50
Serial Number: 51
Issue Time: 2014 Sep 14 0909 UTC

CANCEL WATCH: Geomagnetic Storm Category G3 Predicted
Cancel Serial Number: 50
Original Issue Time: 2014 Sep 11 0459 UTC

Comment: Cancelled G1 Watch for 14 Sep as conditions no longer warrant an active watch.
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.

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