ALERT: Geomagnetic K-index of 7

Space Weather Message Code: ALTK07 Serial Number: 89 Issue Time: 2015 Jan 07 1126 UTC

Threshold Reached: 2015 Jan 07 1125 UTC Synoptic Period UTC

Active Warning: Yes NOAA Scale: G3 - Strong NOAA Space Weather Scale

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:

Increased risk of strong quakes, eruptions and severe weather next 7-10 days.