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Message Subject
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SOLAR WATCH * Huge X8.2 Flare Sept. 10, 2017! (Updated Daily)
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Poster Handle
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Anonymous Coward |
Post Content
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Space Weather Message Code: ALTK06 Serial Number: 476 Issue Time: 2020 Sep 28 0001 UTC
ALERT: Geomagnetic K-index of 6 Threshold Reached: 2020 Sep 27 2359 UTC Synoptic Period: 2100-2359 UTC Active Warning: Yes NOAA Scale: G2 - Moderate
NOAA Space Weather Scale descriptions can be found at www.swpc.noaa.gov/noaa-scales-explanation
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. [ link to www.swpc.noaa.gov (secure)]
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