National Weather Service United States Department of Commerce

Snow Across the Great Lakes, Central Appalachians, and Northeast; Unsettled Weather in the West

Light to moderate snow will continue into Saturday over the Great Lakes, Central Appalachians, and Northeast. This weekend into next week, a series of atmospheric rivers will bring gusty winds, periods of heavy rain, and mountain snow to northern California and the Pacific Northwest. Colder temperatures are in store for the weekend from the Great Lakes to East Coast. 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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