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Space Weather Message Code: ALTK06
Serial Number: 296 Issue Time: 2012 Oct 08 1144 UTC ALERT: Geomagnetic K-index of 6 Threshold Reached: 2012 Oct 08 1138 UTC Synoptic Period: 0900-1200 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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Thread | Thread Starter | Forum | Replies | Last Post |
ALERT: Geomagnetic K-index of 6 -- Threshold Reached: 2012 Oct 010148 UTC | Sam Wormley[_2_] | Amateur Astronomy | 0 | October 1st 12 02:54 AM |
ALERT: Geomagnetic K-index of 5 -- Threshold Reached: 2012 Jul 090300 UTC | Sam Wormley[_2_] | Amateur Astronomy | 0 | July 9th 12 04:14 AM |
ALERT: Geomagnetic K-index of 5 -- Threshold Reached: 2012 Jun 162147 UTC | Sam Wormley[_2_] | Amateur Astronomy | 0 | June 16th 12 11:08 PM |
ALERT: Geomagnetic K-index of 5 -- Threshold Reached: 2012 Jun 112346 UTC | Sam Wormley[_2_] | Amateur Astronomy | 0 | June 12th 12 01:01 AM |
ALERT: Geomagnetic K-index of 6 -- Threshold Reached: 2012 Mar 151724 UTC | Sam Wormley[_2_] | Amateur Astronomy | 1 | March 15th 12 06:34 PM |