THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A SEVERE THUNDERSTORM AND A FLASH FLOOD WARNING FOR...CENTRAL NATRONA COUNTY IN CENTRAL WYOMING...UNTIL 6:19 PM MDT

AT 247 PM MDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR EMIGRANT GAP...WHICH IS 14 MILES WEST OF CASPER. THIS STORM WAS NEARLY STATIONARY.

HALF INCH HAIL WILL BE POSSIBLE WITH THIS STORM ALONG WITH VERY HEAVY RAIN. DOPPLER RADAR HAS INDICATED THAT OVER ONE INCH OF RAIN HAS ALREADY FALLEN WITH THIS STORM. BE ALERT FOR POSSIBLE FLOODING ALONG HIGHWAY 20 26 WEST OF CASPER.

THIS STRONG THUNDERSTORM WILL BE NEAR...EMIGRANT GAP AND NATRONA COUNTY AIRPORT AROUND 330 PM MDT.

OTHER LOCATIONS IMPACTED BY THIS STORM INCLUDE POISON SPIDER SCHOOL AND CASPER NATRONA COUNTY AIRPORT.