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Severe Weather and Heavy Rainfall Potential for the Plains; Coastal Low Across the mid-Atlantic

An upper trough and frontal boundary will focus showers and thunderstorms across portions of the Plains through early Monday; A few severe thunderstorms along with heavy rainfall are expected. Meanwhile, low pressure off the Southeast Coast will bring inclement weather across the mid-Atlantic coast through Monday. This system is forecast to meander off the coast then track inland early this week. Read More >

Overview

During the evening of June 21, 2015 a supercell traveled across Harding, Perkins, and Ziebach Counties in northwestern South Dakota, bringing large hail, strong winds, and six tornadoes. Hail to the size of baseballs was reported 7 miles southeast of Meadow with numerous reports of golfball size hail near Bison and Meadow. Eyewitness spotter and chaser reports confirmed six distinct touchdowns with this supercell. The tornadoes remained in mainly rural areas of Perkins and Ziebach Counties with little to no damage being reported.

All six tornado tracks

Tracks for all six reported tornadoes.

 

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