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WWUS20 KWNS 232030

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URGENT - IMMEDIATE BROADCAST REQUESTED

Severe Thunderstorm Watch Number 259

NWS Storm Prediction Center Norman OK

330 PM CDT Tue May 23 2017



The NWS Storm Prediction Center has issued a



* Severe Thunderstorm Watch for portions of

  central and southeast Texas



* Effective this Tuesday afternoon and evening from 330 PM until

  1100 PM CDT.



* Primary threats include...

  Scattered large hail and isolated very large hail events to 2

    inches in diameter possible

  Scattered damaging wind gusts to 70 mph possible



SUMMARY...Scattered thunderstorms now forming across parts of

central Texas are expected to increase in coverage and intensity

while developing eastward and southeastward toward mid and upper

Texas coastal areas through this evening.  Strongest activity will

be capable of producing severe hail and potentially damaging surface

gusts.



The severe thunderstorm watch area is approximately along and 80

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

San Antonio TX to 50 miles south southeast of Tyler TX. For a

complete depiction of the watch see the associated watch outline

update (WOUS64 KWNS WOU9).



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 257...WW 258...



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

29035.



...Kerr

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