Space Weather Message Code: WATA50
Serial Number: 50
Issue Time: 2014 Sep 11 0459 UTC

WATCH: Geomagnetic Storm Category G3 Predicted

Highest Storm Level Predicted by Day:
Sep 12: G2 (Moderate) Sep 13: G3 (Strong) Sep 14: G1 (Minor)

THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT

Comment: Upgrading the Watch for 13-14 Sep due to anticipated effects from the CME associated with yesterday's R3 (Strong) event.

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.

TL;DR: piektdien un īpaši sestdien paliela iespēja, ka būs redzama polārblāzma.