National Weather Service United States Department of Commerce

Heavy Rain and Flash Flooding in the West; Heat Expands in the Central U.S.

Monsoonal moisture will produce showers and thunderstorms with heavy rain over parts of the Southwest, Great Basin, and Central Rockies through Monday. Flash flooding is possible, especially in and around burn scars and in areas of steep terrain. Heat will persist across the Central U.S. early this week, spreading into the Ohio Valley and Mid-Atlantic later this week. Read More >

Overview

During the late afternoon of Thursday, July 7th, scattered storms developed across northern Illinois and slowly moved east-northeast.  As the storms grew, their slow movement helped to produce locally heavy rainfall.  The Doppler Radar estimated rainfall maps show the localized nature of the heavy rainfall.  In addition, there were a handful of funnel cloud reports from the storms due to large scale rotation in the atmosphere.  Concentrated storm rotation for tornadoes was not favored.
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