National Weather Service United States Department of Commerce

Severe Weather in the Plains; Heavy Rainfall in the Ohio and Tennessee Valleys; Heat Wave in the Central U.S.

Numerous severe storms with a potential for severe wind gusts, tornadoes (some potentially strong), and very large hail are expected in parts of the central and northern Plains. Heavy rainfall may bring a flooding threat to parts of the northern Plains and from the Ohio Valley to the Southeast. Fire weather concerns persist in the Four Corners Region. Hot and humid expected in the central U.S.. Read More >

Overview

A very unstable airmass was in place ahead of a weak mid-level disturbance that moved into the area. Temperatures surged into the upper 80s to lower 90s within a very moist airmass characterized by tropical-like dewpoints in the mid to upper 70s. Scattered thunderstorms rapidly developed around 11am near a remnant outflow boundary from earlier convection. The storms formed into several clusters that moved southeast across portions of southeast IL, southwest IN, and much of western KY. The main threat was damaging winds, with a few scattered small hail reports as well.
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