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WWUS20 KWNS 300315

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ARZ000-LAZ000-TXZ000-301100-



URGENT - IMMEDIATE BROADCAST REQUESTED

Severe Thunderstorm Watch Number 178

NWS Storm Prediction Center Norman OK

1015 PM CDT Sat Apr 29 2017



The NWS Storm Prediction Center has issued a



* Severe Thunderstorm Watch for portions of

  Central and southern Arkansas

  Northwestern Louisiana

  Northeastern Texas



* Effective this Saturday night and Sunday morning from 1015 PM

  until 600 AM CDT.



* Primary threats include...

  Isolated damaging wind gusts to 70 mph possible

  Isolated large hail events to 1.5 inches in diameter possible

  A tornado or two possible



SUMMARY...Bands and clusters of strong to occasionally severe storms

will continue to form and move to the north-northeast through the

overnight hours, along and ahead of a cold front moving eastward

from eastern Oklahoma and northeaster Texas.  Damaging winds and

large hail will be the main risks, though an isolated tornado or two

may occur with embedded circulations.



The severe thunderstorm watch area is approximately along and 65

statute miles east and west of a line from 60 miles east northeast

of Russellville AR to 70 miles west southwest of Natchitoches LA.

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 177...



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 500. Mean storm motion vector

22035.



...Thompson

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