WWUS20 KWNS 201925

SEL6  

SPC WW 201925

NEZ000-SDZ000-WYZ000-210300-



URGENT - IMMEDIATE BROADCAST REQUESTED

Severe Thunderstorm Watch Number 356

NWS Storm Prediction Center Norman OK

125 PM MDT Sat Jun 20 2026



The NWS Storm Prediction Center has issued a



* Severe Thunderstorm Watch for portions of 

  Nebraska Panhandle

  Southwest South Dakota

  Central and Eastern Wyoming



* Effective this Saturday afternoon and evening from 125 PM until

  900 PM MDT.



* Primary threats include...

  Scattered damaging wind gusts to 70 mph likely

  Scattered large hail and isolated very large hail events to 2

    inches in diameter possible

  A tornado or two possible



SUMMARY...Clusters of high-based thunderstorms will affect much of

central Wyoming this afternoon, capable of locally damaging wind

gusts.  Other supercell storms capable of large hail and damaging

winds will be a concern over eastern Wyoming and the Nebraska

Panhandle later this afternoon.



The severe thunderstorm watch area is approximately along and 85

statute miles north and south of a line from 15 miles west southwest

of Lander WY to 40 miles east northeast of Scottsbluff NE. For a

complete depiction of the watch see the associated watch outline

update (WOUS64 KWNS WOU6).



PRECAUTIONARY/PREPAREDNESS ACTIONS...



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.



&&



AVIATION...A few severe thunderstorms with hail surface and aloft to

2 inches. Extreme turbulence and surface wind gusts to 60 knots. A

few cumulonimbi with maximum tops to 500. Mean storm motion vector

26030.



...Hart