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WWUS20 KWNS 182104

SEL1

SPC WW 182104

TXZ000-190400-



URGENT - IMMEDIATE BROADCAST REQUESTED

Severe Thunderstorm Watch Number 11

NWS Storm Prediction Center Norman OK

405 PM CDT Sun Mar 18 2018



The NWS Storm Prediction Center has issued a



* Severe Thunderstorm Watch for portions of

  North-central and East Texas



* Effective this Sunday afternoon and evening from 405 PM until

  1100 PM CDT.



* Primary threats include...

  Scattered large hail and isolated very large hail events to 3

    inches in diameter possible

  Isolated damaging wind gusts to 70 mph possible

  A tornado or two possible



SUMMARY...At least isolated severe storms are expected to increase

initially across central Texas in the general vicinity of Interstate

35 this afternoon, and subsequently spread eastward toward East

Texas by evening. Large hail should be the most common hazard, but

locally damaging winds and/or a tornado cannot be ruled out,

particularly as low-level shear increases this evening.



The severe thunderstorm watch area is approximately along and 105

statute miles east and west of a line from 35 miles north of Fort

Worth TX to 25 miles southeast of Huntsville TX. 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.



&&



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

3 inches. Extreme turbulence and surface wind gusts to 60 knots. A

few cumulonimbi with maximum tops to 500. Mean storm motion vector

26025.



...Guyer

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