Aurora alert: Moderate geomagnetic storm could bring northern lights as far south as New York this weekend

Northern lights appear as ribbons of purple and pink light with some green lower down on the horizon across the sky. stream from a geyser rises up in the foreground. .

The sun has been putting on quite a show this week, sparking impressive auroras across the U.S. and Canada, and it isn't finished yet. 

Continued solar activity has prompted the National Oceanic and Atmospheric (NOAA) Space Weather Prediction Center (SWPC) to issue a geomagnetic storm warning for Aug. 3 and Aug. 4 which is great news for those wishing to see the northern lights.