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 >


Fast Facts:

  • A strong thunderstorm complex formed in Iowa before moving through portions of northern and central Illinois during the evening of Saturday, July 11th.
  • While the strongest wind gusts and more widespread wind damage were concentrated farther to the west and south, several reports of wind damage were received in Lee, La Salle, Livingston, Kankakee, and Iroquois counties as these storms rolled through.
  • The most significant damage reports were limited to downed trees and power lines.
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