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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

Numerous thunderstorms formed ahead of a cold front during the late afternoon. Some supercells and bowing line segments were embedded within the large area of convection through the evening hours. A few transient low-level circulations were observed in the supercells, which exhibited stronger and more sustained rotation in the mid levels of the atmosphere. The bowing line segments produced isolated wind damage.
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