ALERT: Geomagnetic K-index of 7

Space Weather Message Code: ALTK07 Serial Number: 101 Issue Time: 2016 Mar 07 0001 UTC ALERT: Geomagnetic K-index of 7

Threshold Reached: 2016 Mar 06 2359 UTC Synoptic Period: 2100-2400 UTC

Active Warning: Yes NOAA Scale: G3 - Strong

NOAA Space Weather Scale descriptions can be found at www.swpc.noaa.gov/noaa-scales-explanation

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.