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WWUS20 KWNS 120539

SEL1

SPC WW 120539

OKZ000-120900-



URGENT - IMMEDIATE BROADCAST REQUESTED

Severe Thunderstorm Watch Number 361

NWS Storm Prediction Center Norman OK

1240 AM CDT Sun Jul 12 2020



The NWS Storm Prediction Center has issued a



* Severe Thunderstorm Watch for portions of

  South central Oklahoma



* Effective this Sunday morning from 1240 AM until 400 AM 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

    inches in diameter possible



SUMMARY...Clusters of severe storms with a history of 65-80 mph

measured wind gusts will continue to surge east-southeastward across

south central and parts of southeast Oklahoma, along an outflow

boundary trailing northwestward from a separate cluster of storms in

far southeast Oklahoma.  Given the strong instability still

remaining over southern Oklahoma, the threat for additional severe

gusts should persist for another few hours before the storms weaken

near the Red River.



The severe thunderstorm watch area is approximately along and 40

statute miles north and south of a line from Fort Sill OK to 35

miles south of Mcalester OK. For a complete depiction of the watch

see the associated watch outline update (WOUS64 KWNS WOU1).



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 360...



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

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

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

30035.



...Thompson

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