Issue Time: 2017 Apr 20 1138 UTC
CANCEL WARNING: Geomagnetic K-Index of 6 expected
Original Issue Time: 2017 Apr 20 0345 UTC
Comment: Conditions are no longer favorable for G2-Moderate storm levels
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.
This post compiled using data gathered from NOAA and NASA.