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ALERT: Geomagnetic K-index of 6 -- Threshold Reached: 2013 Mar 170842 UTC
Space Weather Message Code: ALTK06
Serial Number: 302 Issue Time: 2013 Mar 17 0904 UTC ALERT: Geomagnetic K-index of 6 Threshold Reached: 2013 Mar 17 0842 UTC Synoptic Period: 0600-0900 UTC Active Warning: Yes NOAA Scale: G2 - Moderate 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. |
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