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Old October 1st 12, 02:45 AM posted to sci.astro.amateur
Sam Wormley[_2_]
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Default WARNING: Geomagnetic K-Index of 6 expected -- Issue Time: 2012 Oct01 0140 UTC

Space Weather Message Code: WARK06
Serial Number: 209
Issue Time: 2012 Oct 01 0140 UTC

WARNING: Geomagnetic K-Index of 6 expected
Valid From: 2012 Oct 01 0145 UTC
Valid To: 2012 Oct 01 0600 UTC
Warning Condition: Onset
NOAA Scale: G2 - Moderate

Comment: This upgrades the G1 warning currently in effect.

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/NOAAscales

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.