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Severe Thunderstorms in the East Sunday; Excessive Heat Lingers in the Southern U.S. and Returning to California

Scattered damaging winds from severe thunderstorms will be possible across parts of the Northeast and Mid-Atlantic States Sunday. Excessive heat will continue over the southern U.S. Sunday before another round of heat arrives Monday through the central and southern U.S. spreading into the East by Independence Day. California will see excessive heat starting Tuesday. Read More >

Overview

A cluster of strong storms over southern lake Michigan, around 6 AM EDT, organized further as they tracked into northwest Indiana/southwest Michigan which prompted initial severe warnings based on deep cores (50dbz > 40kft) and emerging wind signatures. The most intense line segment peeled east-southeastward and hammered Elkhart, Kosciusko, and Whitley counties with widespread wind damage. An initial 70mph wind gust was recorded followed by a second 73 mph gust around 3 min later with a microburst core over Kosciusko County. The eastward leading convective line proved more vigorous as it aligned with the low-level shear vector and produced additional wind damage into northwest Ohio (Van Wert county). Additional intensification occurred to the west within the larger line segment with gusts 58-62 mph noted in AWOS METARS from Monticello east to Grissom Airports.

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A shelf cloud approaching Bluffton, IN. Via @jtinneywx
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