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WWUS20 KWNS 310212

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URGENT - IMMEDIATE BROADCAST REQUESTED

Severe Thunderstorm Watch Number 135

NWS Storm Prediction Center Norman OK

910 PM CDT Wed May 30 2018



The NWS Storm Prediction Center has issued a



* Severe Thunderstorm Watch for portions of

  Southern Kansas

  Northern Oklahoma



* Effective this Wednesday night and Thursday morning from 910 PM

  until 500 AM CDT.



* Primary threats include...

  Scattered damaging winds likely with isolated significant gusts

    to 75 mph possible

  Scattered large hail and isolated very large hail events to 2

    inches in diameter possible



SUMMARY...A convective complex is in the process of organizing and

growing across the eastern Oklahoma and northeastern Texas

Panhandles.  The environment downstream across northern Oklahoma and

southern Kansas is favorable to maintain the convective system well

into the overnight hours with some northward expansion of the

storms.  The threat for damaging winds should increase the next

several hours, and large hail will also be possible with the

stronger embedded/supercell storms.



The severe thunderstorm watch area is approximately along and 60

statute miles north and south of a line from 20 miles northwest of

Gage OK to 35 miles east northeast of Bartlesville OK. For a

complete depiction of the watch see the associated watch outline

update (WOUS64 KWNS WOU5).



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 134...



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 550. Mean storm motion vector

27040.



...Thompson

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