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102 

WWUS20 KWNS 190739

SEL4

SPC WW 190739

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URGENT - IMMEDIATE BROADCAST REQUESTED

Severe Thunderstorm Watch Number 244

NWS Storm Prediction Center Norman OK

240 AM CDT Fri May 19 2017



The NWS Storm Prediction Center has issued a



* Severe Thunderstorm Watch for portions of

  West Texas



* Effective this Friday morning from 240 AM until 900 AM 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...Severe thunderstorms are expected to continue to develop

along a retreating dryline within an increasingly moist and unstable

environment. Supercells capable of large hail will be possible, with

an eventual clustering of storms potentially leading to some

damaging wind risk within an environment conducive for

near-surface-based updrafts/downdrafts.



The severe thunderstorm watch area is approximately along and 45

statute miles north and south of a line from 25 miles south of

Midland TX to 45 miles east northeast of Abilene TX. For a complete

depiction of the watch see the associated watch outline update

(WOUS64 KWNS WOU4).



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 243...



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 550. Mean storm motion vector

24025.



...Guyer

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