More big storms will plaster parts of the central U.S. Thursday while some rain also falls in the Southwest and Southeast.
Central U.S.: Powerful thunderstorms are likely Thursday in the northern Plains, upper Midwest and around the Great Lakes. Some of the storms could reach severe levels in Wisconsin and northern Michigan, where rain will be the heaviest.
South: Afternoon thunderstorms and very warm, humid conditions will be common in the Southeast and Florida Thursday. The Southern Plains will be hot, with highs in the upper 90s.
West: The Southwest will be very hot, but afternoon thunderstorms are possible in portions of Arizona and New Mexico. The northern Rockies will be in the cool 60s and 70s.
Weather history for Sept. 4: In 1970, torrential rain from Tropical Storm Norma led to disastrous flooding in Arizona, killing 23 people. In 1988, Stampede Pass, Wash., hit an all-time record high of 91 degrees.
Read the original story: Thursday's forecast: Stormy Midwest, Southeast