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#1
June 12th 12, 01:01 AM
posted to sci.astro.amateur
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ALERT: Geomagnetic K-index of 5 -- Threshold Reached: 2012 Jun 112346 UTC
Space Weather Message Code: ALTK05
Serial Number: 690 Issue Time: 2012 Jun 11 2354 UTC ALERT: Geomagnetic K-index of 5 Threshold Reached: 2012 Jun 11 2346 UTC Synoptic Period: 2100-2400 UTC Active Warning: Yes NOAA Scale: G1 - Minor NOAA Space Weather Scale descriptions can be found at www.swpc.noaa.gov/NOAAscales Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude. Induced Currents - Weak power grid fluctuations can occur. Spacecraft - Minor impact on satellite operations possible. Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine. 
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