It wasn't a tornado that blew through Storm Lake. But the storm caused considerable damage and left more than 6,000 in the area without power.

SIOUX FALLS, S.D. (KELO) — Monday afternoon brought a surprising twist to winter weather in northeastern KELOLAND with South Dakota’s first February tornado in history. This tornado occurred ...

The Sioux Falls sirens are tested at 11 a.m. of the first Friday of the month from March to October, however the system will be activated Wednesday at 10:15 a.m. for a community wide tornado drill.