It's one of the weirdest things we've seen in 2025's weather, so far. A winter tornado in one of America's coldest states. Here's what happened and why.

The forecast on Monday hardly featured a chance of thunderstorms in South Dakota. So when a tornado touched down in Watertown in the eastern part of the state, it surprised even a seasoned storm chaser.

Typically when a person thinks of February in either of the Dakotas, they don’t think of tornadoes. But that happened Monday outside of Watertown, South Dakota