National Weather Service United States Department of Commerce


Several days of persistant severe weather impacted southeastern Wyoming and the Nebraska Panhandle on the dates of May 18 - 21st 2014.  In particular May 20th and 21st thunderstorms produced very large hail, damaging winds, and tornadoes. The Storm Prediction Center included Southeastern Wyoming and Western Nebraska in a the slight risk area for sever storms both days. After the passage of a cold front, moisture was abundant along with southeasterly low level flow contributing to the support of strong supercells. May 20th storms produced hail over 1 inch in diameter in Goshen and Converse counties. May 21st a supercell dropped a tornado north of Wheatland in Platte county, and hail over 1 inch in diameter. 


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