Montana early Tuesday evening.Recorded by Isley Reust, the footage shows a dark gray cloud hanging over the black, snow-laced mountains in the distance.
From that cloud, a funnel extends below, appearing to kick up snow into the air.Funnel cloud in Montana. (@isleyreust / Instagram / FOX Weather)Tornadoes rarely form over mountains, as conditions would not be optimal, according to the National Weather Service.
They noted, however, that tornadoes have crossed the Appalachian Mountains and a 10,000-foot-tall mountain in Yellowstone National Park.HOW TO WATCH FOX WEATHERAbout 300 miles northwest of Yellowstone, the town of St.