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Heat Wave Expands to the East Coast; Flash Flooding Likely in the Central Plains into the Midwest; Severe Thunderstorms in the Northeast

Dangerous, prolonged heat is ongoing in the Mid-South to Mid-Mississippi Valley and heat expands into the Northeast for a brief period today. Widely scattered instances of flash flooding due to heavy rains are forecast from northeast Kansas to much of Indiana. Scattered strong to severe thunderstorms are possible across parts of New England, northern Mid-Atlantic, and North Dakota. Read More >

Overview

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A warm, moist, and unstable air mass across the region ahead of a southward sinking cold front resulted in thunderstorm development, several being severe. These produced large hail and scattered damaging winds. Most hail reports ranged in size from quarter to golf ball size hail. The largest hail fell in Van Buren County near Keosauqua where 2 to 3 inch diameter hail fell. There were also a few reports of 60 to 80 MPH across far southeast Iowa into west central Illinois which damaged trees and knocked down several outbuildings.  The most widespread damage occurred near Oakville, IA.  

In addition, two brief tornadoes touchdown in northern McDonough County in west central Illinois and did not cause any damage.

 

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