Friday, September 8, 2017

WARNING: Geomagnetic K-Index of 6 expected

Space Weather Message Code: WARK06 Serial Number: 398 Issue

Time: 2017 Sep 08 2049 UTC EXTENDED

WARNING: Geomagnetic K-Index of 6 expected

Extension to Serial Number: 397 Valid From: 2017 Sep 07 2255 UTC Now Valid Until: 2017 Sep 09 0900 UTC

Warning Condition: Persistent

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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