Heavy rain possible over parts of the Upper Mississippi Valley into parts of the Upper Great Lakes. Some Severe Thunderstorms Possible in the Upper Mississippi Valley.

Thunderstorms are expected produce heavy rainfall over parts of the Upper Mississippi River Vally and Upper Great Lakes. Flash flooding will be possible in some of these areas, mainly over portions of Minnesota, Wisconsin and Iowa. Some of these storms may also become severe, with damaging winds, large hail and a possibly an isolated tornado. Read More >