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WWUS20 KWNS 172312

SEL8

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OKZ000-TXZ000-180700-



URGENT - IMMEDIATE BROADCAST REQUESTED

Severe Thunderstorm Watch Number 78

NWS Storm Prediction Center Norman OK

615 PM CDT Wed Apr 17 2019



The NWS Storm Prediction Center has issued a



* Severe Thunderstorm Watch for portions of

  South Central Oklahoma

  North Central Texas



* Effective this Wednesday night and Thursday morning from 615 PM

  until 200 AM CDT.



* Primary threats include...

  Widespread large hail and isolated very large hail events to 2.5

    inches in diameter likely

  Scattered damaging wind gusts to 70 mph likely

  A tornado or two possible



SUMMARY...Thunderstorms will form across the watch area early this

evening and spread eastward.  Large hail and damaging winds are the

main threat, but there is some concern for a tornado or two along

the Red River valley.



The severe thunderstorm watch area is approximately along and 50

statute miles east and west of a line from 20 miles east of Ardmore

OK to 50 miles south southeast of Brownwood TX. For a complete

depiction of the watch see the associated watch outline update

(WOUS64 KWNS WOU8).



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 75...WW 76...WW 77...



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

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

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

24035.



...Hart

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