WWUS20 KWNS 232053
SPC WW 232053
URGENT – IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 614
NWS Storm Prediction Center Norman OK
255 PM MDT Fri Aug 23 2019
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
The western Nebraska Panhandle
Extreme southwestern South Dakota
Much of central and eastern Wyoming
* Effective this Friday afternoon and evening from 255 PM until
1000 PM MDT.
* Primary threats include…
Scattered damaging wind gusts to 70 mph possible
Scattered large hail events to 1.5 inches in diameter possible
SUMMARY…Thunderstorms are forming across central Wyoming and
immediately east of the higher terrain into eastern Wyoming. The
storm environment is sufficient for supercells across central
Wyoming, though growth into clusters with damaging winds and large
hail should be the primary concern through late evening.
The severe thunderstorm watch area is approximately along and 85
statute miles east and west of a line from 25 miles east southeast
of Cheyenne WY to 95 miles north northeast of Casper WY. For a
complete depiction of the watch see the associated watch outline
update (WOUS64 KWNS WOU4).
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