Solar Storm Update: A moderate G2 level geomagnetic storm is now in progress. The solar wind speed is currently at 607 km/s and the Bz component of the interplanetary magnetic field is currently pointing north, a condition that is know to suppress geomagnetic activity. With any luck, the Bz will drop south over the next several hours. More to follow. ALERT: Geomagnetic K-index of 6 Threshold Reached: 2014 Sep 12 1741 UTC Synoptic Period: 1500-1800 UTC Active Warning: Yes NOAA Scale: G2 - 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. 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.
Posted on: Fri, 12 Sep 2014 19:18:47 +0000
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