Tuesday, October 9, 2012

ALERT: Geomagnetic K-index of 6 (G2)

Space Weather Message Code: ALTK06
Serial Number: 298
Issue Time: 2012 Oct 09 0540 UTC

ALERT: Geomagnetic K-index of 6
Threshold Reached: 2012 Oct 09 0540 UTC
Synoptic Period: 0300-0600 UTC

Active Warning: Yes
NOAA Scale: G2 - Moderate

NOAA Space Weather Scale descriptions can be found at

Potential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.

Editor's note:

Brace yourself for geological events and severe weather the next seven to ten days.

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