As of 3:00 Tuesday afternoon, it looks like the greatest threat of severe weather lies in Southern Minnesota and in Iowa's northern counties. The below graphic from the National Weather Service in Des Moines shows the timing of the storm systems tonight.

The storms will creep into northern Iowa after 6 PM and the Cedar Valley may see the systems hit the area between 10 PM and Midnight:

Credit: NWS Des Moines via Twitter

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