Northern lights possible over Canada after sunspot behind big solar storm returns
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The northern lights could return to the sky over parts of Canada as a sunspot that contributed to a recent stunning aurora display rotates back Earth-side.
A sunspot that earlier this month unleashed a series of solar flares and the largest in nearly two decades has turned back toward Earth and let loose another powerful, but less intense, flare this week.
The U.S. National Oceanic and Atmospheric Administration, which rates geomagnetic storms on a five-point scale, is forecasting a moderate G2 storm peaking Friday, compared to the severe G4 storm in early May.
NOAA’s Friday night aurora forecast shows the view line, the most southern extent of where the northern lights might be seen, cutting across the Toronto area and through the Atlantic Region around Moncton, N.B.
