Space Environment Alert
Issued by NWS
WOXX12 KWNP 230856
Space Weather Message Code: ALTK06
Serial Number: 431
Issue Time: 2017 Apr 23 0852 UTC
ALERT: Geomagnetic K-index of 6
Threshold Reached: 2017 Apr 23 0852 UTC
Synoptic Period: 0600-0900 UTC
Active Warning: Yes
NOAA Scale: G2 - Moderate
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.
# Issued by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
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