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153 

WWUS20 KWNS 040825

SEL0

SPC WW 040825

TXZ000-041400-



URGENT - IMMEDIATE BROADCAST REQUESTED

Severe Thunderstorm Watch Number 40

NWS Storm Prediction Center Norman OK

225 AM CST Wed Mar 4 2020



The NWS Storm Prediction Center has issued a



* Severe Thunderstorm Watch for portions of

  Parts of the Texas Hill Country



* Effective this Wednesday morning from 225 AM until 800 AM CST.



* Primary threats include...

  Scattered damaging wind gusts to 70 mph possible

  Scattered large hail events to 1.5 inches in diameter possible

  A tornado or two possible



SUMMARY...Thunderstorms along a cold front will likely persist for

the next few hours, in advance of a strong upper storm system

approaching from the Big Bend.  The storm environment favors a mix

of supercell and linear structures, with the potential for a few

embedded circulations and perhaps a tornado or two.  However, the

main threats are expected to be large hail and damaging winds

through the morning.



The severe thunderstorm watch area is approximately along and 55

statute miles east and west of a line from 70 miles east northeast

of Junction TX to 40 miles east southeast of Del Rio TX. 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 39...



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

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

few cumulonimbi with maximum tops to 450. Mean storm motion vector

25035.



...Thompson

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