Tuesday, March 21, 2017

WARNING: Geomagnetic K-Index of 6

Space Weather Message Code: WARK06 Serial Number: 371

Issue Time: 2017 Mar 21 2016 UTC

WARNING: Geomagnetic K-Index of 6 expected Valid From: 2017 Mar 21 2015 UTC Valid To: 2017 Mar 21 2359 UTC

Warning Condition: Onset 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.

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