Geomagnetic storms likely this week
A large hole has opened in the sun's atmosphere, and it is spewing a stream of solar wind toward Earth. Estimated time of arrival: Oct. 24th.First contact with the gaseous material is expected to produce minor G1-class geomagnetic storms, intensifying to moderately strong G2-class storms on Oct. 25th as Earth moves deeper into the stream.
Arctic sky watchers can expect to witness bright auroras. The lights could descend to lower latitudes as well, with sightings in northern-tier US states along a line from Maine to Washington.
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