National Weather Service United States Department of Commerce

Tracking Two Storms Impacting the Northern U.S. Through Thanksgiving and into This Weekend

Heavy lake effect snow, gusty winds, and localized blizzard conditions will persist through Thanksgiving near and downwind of the Great Lakes. Rain and mountain snow are forecast for the Pacific Northwest. Confidence is increasing for another winter storm to develop over the northern and central Rockies Friday and track across the central Plains through the Midwest and Great Lakes this weekend. Read More >

Overview

An unseasonable strong storm system and rich moisture from the Gulf of America produced severe thunderstorms across the Missouri Ozarks during the afternoon and evening hours of August 19th, 2018. A total of eight tornadoes were confirmed including six EF-0 tornadoes and two EF-1 tornadoes. The tornadoes near Diggins, Aurora, and Ritchey, Missouri were produced by low-topped (or mini) supercell thunderstorms. In contrast, the tornadoes over northern Barton and southern Vernon Counties in Missouri were associated with a line of thunderstorms referred to as a quasi-linear convective system (QLCS).

 

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