The thunderstorms on July 28 produced two damage-causing tornadoes in South Dakota, and a third in Iowa, according to the ...

Here are the top headlines from this morning. The National Weather Service in Sioux Falls has confirmed a tornado in Lyon County, Iowa, that occurred during Monday’s derecho event. An annual financial ...

The National Weather Service in Sioux Falls has confirmed a tornado in Lyon County, Iowa, that occurred during Monday's ...

After heavy storms swept through Sioux Falls this week many residents are still cleaning up the damage, leaving several with ...

The National Weather Service in Sioux Falls has confirmed a tornado in Lyon County, Iowa, that occurred during Monday's derecho event.

The second tornado of the evening, rated EF-1, spawned approximately one mile east of Alvord, Iowa, or 11 miles northeast of Inwood. The tornado was not witnessed by storm chasers or law enforcement, ...