

088 

WWUS20 KWNS 220246

SEL0

SPC WW 220246

KSZ000-OKZ000-TXZ000-221100-



URGENT - IMMEDIATE BROADCAST REQUESTED

Severe Thunderstorm Watch Number 200

NWS Storm Prediction Center Norman OK

950 PM CDT Thu May 21 2020



The NWS Storm Prediction Center has issued a



* Severe Thunderstorm Watch for portions of

  Southwest and south central Kansas

  Northwest and north central Oklahoma and the eastern Oklahoma

Panhandle

  The extreme northeast Texas Panhandle



* Effective this Thursday night and Friday morning from 950 PM

  until 600 AM CDT.



* 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...Supercell cluster over southwest Kansas is growing upscale

through storm mergers into a larger convective system.  The initial

supercell interactions could pose a threat for large hail and

perhaps a tornado through about 04z.  Damaging winds will become

more of a threat as the cold pool becomes more established and

storms develop east-southeastward toward northwest Oklahoma

overnight.



The severe thunderstorm watch area is approximately along and 75

statute miles north and south of a line from 30 miles north of

Liberal KS to 40 miles north northeast of Enid OK. For a complete

depiction of the watch see the associated watch outline update

(WOUS64 KWNS WOU0).



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.



&&



OTHER WATCH INFORMATION...CONTINUE...WW 198...WW 199...



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 550. Mean storm motion vector

30025.



...Thompson

