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Heat and Fire Weather Concerns in the West; Excessive Rainfall Possible in the South-Central U.S.

Heat will build over the Intermountain West and the Southwest the next couple of days. Lightning from dry thunderstorms can create new fire starts and combined with gusty winds may cause a fire to rapidly grow in Oregon and northern California. Flash flooding will be possible in New Mexico and west Texas today, as well as parts of the southern and central Plains due to slow moving thunderstorms. 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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