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

Two rounds of thunderstorms moved through the region on Thursday, July 21st. The first grazed northeast Illinois and northwest Indiana, bringing isolated gusty winds and locally heavy rainfall.  This also brought rain-cooled air into these areas, including downtown Chicago, which briefly brought relief from heat.  The second round of storms was far more widespread and moved southward through the area that evening.  Gusty winds and heavy rainfall were the main hazards, with reports of tree damage in isolated locations. 

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