Space Weather Message Code: WARK06
Serial Number: 341
Issue Time: 2016 Aug 02 2011 UTC
CANCEL WARNING: Geomagnetic K-Index of 6 expected
Cancel Serial Number: 340
Original Issue Time: 2016 Aug 02 2008 UTC
Comment: Cancelling and reissuing to correct end time to 02/2359 UTC.
NOAA Space Weather Scale descriptions can be found at
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.