National Weather Service United States Department of Commerce

Severe Weather and Flooding Threat in the Central U.S. and Mid-Atlantic; Dangerous Heat in the West and Southern Plains

Severe thunderstorms and heavy rain are expected across the central High Plains into parts of the central and southern Plains and in the the Mid-Atlantic today. Intense, dangerous heat will persist across the West, Southwest, and Southern Plains into the end of the week. Elevated to critical fire weather conditions expected in the Great Basin and Four Corners region. Read More >

Overview

Fast Facts:  Thunderstorms brought torrential rain, flash flooding, hail and damaging winds to northern Illinois Friday afternoon and evening. Radar estimates and surface rainfall measurements indicate a swath of 3-8" of rain fell roughly along the I-80 corridor.

  • Heaviest Rainfall amounts included: 8.03 at Channahon, 7.87 inches at Peotone, 7.61 inches at Seneca, 7.53 at Morris, and 7.52 inches at Valparaiso  
  • Chicago O'Hare Daily Rainfall record set: 2.28 inches

Rainfall


Observed Rainfall - 24 hour period ending 10 am Saturday September 28

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Additional recaps can be found on the NWS Chicago Past Events Page
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