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 moist and unstable airmass combined with a front bisecting through the area to produce strong to severe thunderstorms over the lower Ohio Valley during the afternoon and early evening on July 3rd. The most significant damage from the storms was around the Poseyville, IN area where a microburst occurred with winds up to 80 mph estimated. The water vapor content of the atmosphere was quite high, helping to produce very efficient rain-producing thunderstorms and flash flooding in some areas.