National Weather Service United States Department of Commerce

Mississippi Valley Summer Heat Wave; Severe Thunderstorms and Flooding Possible to the North

A dangerous summer heat wave will continue much of the Plains, Mid/Lower Mississippi Valley, Southeast U.S. today and Thursday. Areas of severe thunderstorms may occur today and again on Thursday from parts of the northern/central Rockies and High Plains into the Ohio Valley and Carolinas. Excessive rainfall over similar areas may bring flash flooding today and Thursday. Read More >



  • Multiple rounds of storms passed over northern Illinois during Tuesday afternoon and evening.
  • Very heavy rain caused flooding across much of northern Illinois along and north of I-88.
  • Some areas received 2-4 inches of rainfall Tuesday.
  • We received reports of three tornadoes. Two were extremely short lived and produced no reports of damage.  The third struck Manhattan, IL in Will County and was rated EF-1.  More information is provided in the tornado tab.
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