The National Weather Service has issued a Severe Thunderstorm Watch for eastern Wyoming, and parts of the Nebraska Panhandle and northeastern Colorado, in effect until 10:00 PM Friday (August 16). The watch includes the City of Cheyenne.

REMEMBER...A Severe Thunderstorm Watch means conditions are
favorable for severe thunderstorms in and close to the watch area.
Persons in these areas should be on the lookout for threatening
weather conditions and listen for later statements and possible
warnings. Severe thunderstorms can and occasionally do produce
tornadoes.

Graphic courtesy of the National Weather Service.
 The NWS Storm Prediction Center has issued a

   * Severe Thunderstorm Watch for portions of 
     Eastern Colorado
     Northwest Kansas
     Western Nebraska
     Southeast Wyoming

   * Effective this Friday afternoon and evening from 250 PM until
     1000 PM MDT.

   * Primary threats include...
     Scattered damaging winds and isolated significant gusts to 75
       mph possible
     Scattered large hail and isolated very large hail events to 2.5
       inches in diameter possible
     A tornado or two possible

   SUMMARY...A few supercells should develop east off the Front Range
   with risks for very large hail and severe wind gusts. Uncertainty
   exists in how far east severe storms will be maintained later this
   evening into northwest Kansas.

   The severe thunderstorm watch area is approximately along and 60
   statute miles east and west of a line from 30 miles north of
   Torrington WY to 55 miles south of Burlington CO. For a complete
   depiction of the watch see the associated watch outline update
   (WOUS64 KWNS WOU8).