National Weather Service United States Department of Commerce

Heavy Snow For Portions of the Northeast; Great Lakes

Moderate to heavy snow will return to the Northeast and New England over the next couple of days. Heavy Lake Effect Snow will continue to the lee of the Great Lakes. Light snow will fall across portions of the Tennessee Valley; working into the Mid-Atlantic by mid-week. Meanwhile, elevated fire weather conditions will continue in southern California. Read More >

Overview

An area of more organized thunderstorms originated over the Missouri Valley and steadily tracked east through Iowa and Missouri during the morning of June 14th, reaching the I-39 corridor by around noon and then expanded in coverage as it steadily moved east across the area. Heavy rainfall of 2 to 5 inches fell over two separate areas, one over north central and northeast Illinois from eastern Rockford to portions of Lake County IL south to portions of the western Chicago suburbs, especially in central DuPage county. Another corridor of 2" to 5" rainfall amounts occurred from eastern Livingston and across Iroquois, Benton, Jasper and Newton counties. Areal Flood Warnings were issued for parts of these areas with reports of road closures and up to 2.5 feet of standing water. Large hail up to 1.5 inches and strong damaging winds were also associated with the storms, with numerous reports of extensive tree damage and downed power lines. The most extensive damage occurred primarily across LaSalle, Kendall, Grundy and DeKalb counties, where measured wind speeds as high as 72 mph occurred. A much more localized area of extensive damage occurred in Evanston and portions of adjacent Wilmette shortly after 5 pm. Here, a small-scale downburst was determined to have occurred based off radar assessment. These types of downbursts can sometimes be classified as microbursts depending on the size of the area impacted. In this localized damage, multiple large trees were uprooted, several of them falling on cars. Damage also occurred to the roof of Evanston Hospital. The severe thunderstorm activity diminished through the early evening hours.  

 

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