NASHVILLE, Tenn. (WZTV) – Monday night, the Northern Lights were spotted in Gallatin, and it’s possible we could see them again Tuesday night. The Space Weather Prediction Center issued an alert that a G4 (severe) geomagnetic storm was observed Tuesday morning, following a pair of Coronal Mass Ejections (CMEs) on Friday and Saturday of last week. G2 to G3 storm conditions are expected to continue through Tuesday night, with the possibility of G4 conditions.