National Weather Service United States Department of Commerce

Heavy Rainfall Threat The Across The Eastern U.S.

A strong cold front will gradually push through the Eastern U.S. over the next couple of days and will bring heavy rain and severe weather, primarily damaging winds . Excessive rainfall may result in flash flooding in the central Great Lakes and central Appalachians. Flash flood watches are currently in effect from the coastal Carolinas to the Great Lakes. Read More >

Overview

Fast Facts:

  • Numerous storms moved south through northern Illinois Tuesday evening, producing scattered downbursts of 35+ mph winds, and in isolated locations these reached to 50+ mph causing damage.
  • Downbursts are concentrated areas of rain and rain-cooled air from thunderstorms, and this more dense, cool air hits the grounds and rushes out, at times causing damage.
  • The thunderstorms also produced heavy rain resulting in localized flash flooding, including in parts of the Chicago and Rockford metro areas.   
Downburst
Animation from College of DuPage webcam showing downburst.
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Additional recaps can be found on the NWS Chicago Past Events Page
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