Geomagnetic storm could spark northern lights as far south as Michigan and Maine tonight and over the weekend

A fast stream of solar wind flowing from a colossal coronal hole in the sun's atmosphere could spark geomagnetic storms tonight and into the weekend (May 15 through May 17), potentially bringing the northern lights as far south as northern Michigan and Maine. The strongest geomagnetic activity is expected between 11 p.m. and 2 a.m. EDT over the next few nights (0300-0600 GMT), which could trigger minor (G1) geomagnetic storm conditions according to NOAA's Space Weather Prediction Center . …