Aurora alert: Strong geomagnetic storm could spark northern lights at mid-latitudes across US and Europe

Northern lights erupt over a lake in Minnesota in a dark sky overhead shining rainbow of Aurora light as the sun sets on the horizon.

Strong solar activity has prompted the National Oceanic and Atmospheric (NOAA) Space Weather Prediction Center (SWPC) to issue a geomagnetic storm warning for July 30 through Aug. 1. 

If the predicted G3 conditions are reached, auroras could be visible across mid-latitudes around 50°. Previous geomagnetic storms at this magnitude have triggered auroras as low as Illinois and Oregon, according to NOAA SPWC.