Blue Earth County experienced a tornado warning Monday night around 9:00.
The National Weather Service first reported the storm near Good Thunder, followed by St. Clair, Pemberton and Waldorf about a half an hour later.
Mankato was hit by a strong thunderstorm. Lake Crystal and other cities south of Mankato had a severe thunderstorm warning lasting until about 10:30.
The National Weather Service says heat, humidity and periodic thunderstorm chances are expected to continue through Wednesday.