

385 

WWUS20 KWNS 292020

SEL6

SPC WW 292020

KSZ000-NEZ000-300300-



URGENT - IMMEDIATE BROADCAST REQUESTED

Severe Thunderstorm Watch Number 626

NWS Storm Prediction Center Norman OK

320 PM CDT Thu Aug 29 2019



The NWS Storm Prediction Center has issued a



* Severe Thunderstorm Watch for portions of

  Northwest and north central Kansas

  Southwest and south central Nebraska



* Effective this Thursday afternoon and evening from 320 PM until

  1000 PM CDT.



* Primary threats include...

  Scattered damaging winds and isolated significant gusts to 75

    mph likely

  Scattered large hail and isolated very large hail events to 2.5

    inches in diameter likely

  A tornado or two possible



SUMMARY...Thunderstorm development is expected by 4-5pm CDT from

northwest Kansas into southwest Nebraska, and storms will spread

east-southeastward through late evening.  The initial storms could

be supercells with very large hail, and there will also be some

potential for a tornado or two with storms developing on the surface

boundary across northwest Kansas and southwest Nebraska.

Thereafter, storm mergers and upscale growth will support an

increasing threat for damaging winds.



The severe thunderstorm watch area is approximately along and 55

statute miles north and south of a line from 55 miles west southwest

of Mccook NE to 55 miles south southeast of Kearney 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

2.5 inches. Extreme turbulence and surface wind gusts to 65 knots. A

few cumulonimbi with maximum tops to 600. Mean storm motion vector

29020.



...Thompson

