A strong G3-class geomagnetic storm is underway on Oct. 25th as Earth enters a stream of solar wind flowing from a coronal hole on the sun. First contact with the stream produced a magnificent outburst of auroras over Alaska. Marketa S. Murray sends this picture from Fairbanks AK:
"The storm finally hit," says Murray, "and the auroras were unbelievable."
More auroras are in the offing tonight as the solar wind is blowing faster than ~700 km/s. Around the Arctic Circle, the Northern Lights should be quite bright. Lesser displays could cross the Canadian border into the United States.
www.spaceweather.com
More auroras are in the offing tonight as the solar wind is blowing faster than ~700 km/s. Around the Arctic Circle, the Northern Lights should be quite bright. Lesser displays could cross the Canadian border into the United States.
www.spaceweather.com
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