A partial halo Coronal Mass Ejection (CME) was generated by major X1.6 solar flare on November 7, 2014.
WSA/ENLIL modeling of the event shows a partially Earth-directed component that is expected to impact the geomagnetic field early to midday on November 10 causing active to major storm conditions (G1-G2, Minor to 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. Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible. HF (high frequency) radio propagation can fade at higher latitudes. Aurora may be seen as low as New York to Wisconsin to Washington state.
Yesterday’s X1.6 flare was associated with a Type II (estimated velocity 602 km/s) and Type IV radio emissions along with a partial halo CME first observed in SOHO/LASCO C2 imagery at 18:08 UTC.
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