Aurora chasers are on high alert for geomagnetic storm conditions overnight with northern lights possible at mid-latitudes.

High-speed winds from a spot on the sun’s surface may disrupt Earth’s magnetic field Tuesday, likely creating geomagnetic storm conditions that could make the northern lights appear in some northern U.S. states, according to the National Oceanic and Atmospheric Administration.

A strong geomagnetic storm will produce northern lights in nearly two dozen US states on Saturday night, the National Oceanic and Atmospheric Administration (NOAA) prediction states. The forecast map and typical aurora visibility patterns during a G3 storm show that states from the Pacific Northwest to the Northeast will see the aurora borealis under favorable weather conditions.