Anyone hear about this?
CME IMPACT SPARKS GEOMAGNETIC STORM: As predicted, a CME hit Earth's magnetic field on Oct. 12th. The impact at approximately 02:30 UT sparked a G2-class geomagnetic storm. Auroras spread across northern Europe, Iceland, Canada, and multiple northern-tier US states.
Abruptly, the solar wind speed increased by 120 km/s. At the same time, the plasma density tripled, and the temperature increased almost 10-fold: more data. These are signs of a classic direct hit by a CME.
The storm's G2-category apex may be over now, but lesser G1-class storms are likely for the rest of Oct. 12th. High-latitude sky watchers should remain alert for auroras.
Sounds juicy
G = 7
(7+2) + (7+1) = 17