casper mountain

via National Weather Service

A tornado that touched down on Casper Mountain Friday afternoon caught forecasters by surprise. Trevor LaVoie, with the National Weather Service, says the storm systems moving through Natrona County today didn’t show any signs of producing tornadoes.

“These types of storms are more general thunderstorms in nature," LaVoie says. "We’re not really seeing a lot of heavy rain, they’re short-lived, and their depth is relatively shallow. They’re only about 15,000 feet thick.”

The tornado wasn’t visible on radar, but it was reported by numerous observers.