National Weather Service United States Department of Commerce

Heavy Precipitation in the West; Wintry Mix in the North; Fire Weather in the High Plains

Pacific moisture will continue to bring locally heavy coastal/lower elevation rain and heavy mountain snow to the West Coast and portions of the Intermountain West through Monday. A wintry mix will create hazardous travel across the northern Plains and Upper Midwest into early Monday. Dry, gusty winds are resulting in elevated to critical fire weather in the south/central High Plains. Read More >

Overview

  • Multiple precipitation events, including the first being a rain/snow event, brought 3 to 5+ inches of precipitation across northern Illinois and northwest Indiana between April 27 - May 2.

  • Most area rivers quickly went up into flood stage by April 29, including the Illinois River reaching major flood stage at Morris and LaSalle May 1-4. The LaSalle River at LaSalle crested at its third highest stage on record for that location (preliminary). Impacts near the rivers were felt in numerous communities.

  • Other flooding was seen on some area roads, parks, and other properties, especially on Tuesday April 30 and Wednesday May 1.

Rainfall Summary

 

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