As predicted, a CME struck Earth on June 28th (~10:00 UTC). The impact sparked a severe G4-class geomagnetic storm, surprising forecasters who expected only a minor G1-class event. Daylight over Europe and the Americas hid a potentially dynamite display of auroras.
The solar wind speed increased to near 500 km/s and the plasma density showed a nice increase as well over the past few hours.
Storm conditions have since subsided. A minor (G1) geomagnetic storm watch will remain in effect for the next 12 hours while the CME disturbance continues to pass Earth.
#solarstorm #CME #spaceweather
Images credit: NASA's Goddard Space Flight Center, nemesis maturity channel
Music credit: KZfaq Audio Library
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