As of 10 p.m. Monday, a G4 geomagnetic storm was occurring according to the Space Weather Prediction Center. The Kp value was an 8. The Kp value is what we use to know how far south one can view

In simpler terms, the storm could cause northern lights to be visible in areas across the northern U.S. The outbreak of northern lights comes after a coronal mass ejection launched from the Sun on Saturday is expected to arrive at Earth Monday night.