The Canadian Space Agency posted a geomagnetic storm warning Tuesday after residents were also treated to a spectacular show in the night sky.
Monday night’s auroras were likely just variations in normal background solar wind, not the solar storm that erupted Sunday, said physicist Doug Biesecker at the U.S. Space Weather Prediction Center in Boulder, Colorado. That was the biggest solar storm in more than six years.
He said a geomagnetic storm Tuesday that came from that solar storm seemed to mostly miss Earth, going a bit north, so it was unlikely that auroras would extend too far south Tuesday night.
Geomagnetic storms cause awesome sights, but they can also bring trouble. According to the National Oceanic and Atmospheric Administration, problems can include current surges in power lines, and interference in the broadcast of radio, TV and telephone signals.
(This version CORRECTS that light show on Monday night took place before solar storm radiation reached the Earth.)
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