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WWUS20 KWNS 111940

SEL9

SPC WW 111940

ARZ000-LAZ000-OKZ000-TXZ000-120300-



URGENT - IMMEDIATE BROADCAST REQUESTED

Severe Thunderstorm Watch Number 209

NWS Storm Prediction Center Norman OK

240 PM CDT Thu May 11 2017



The NWS Storm Prediction Center has issued a



* Severe Thunderstorm Watch for portions of

  Southwest Arkansas

  Northern Louisiana

  Southeast Oklahoma

  East and Northeast Texas



* Effective this Thursday afternoon and evening from 240 PM until

  1000 PM CDT.



* Primary threats include...

  Scattered large hail and isolated very large hail events to 2.5

    inches in diameter possible

  Isolated damaging wind gusts to 70 mph possible

  A tornado or two possible



SUMMARY...Multiple corridors of thunderstorms should continue to

intensify this afternoon, initially across east-central and

northeast Texas into far southeast Oklahoma. Bouts of large hail

will be possible, while damaging winds should increase later this

afternoon into evening as storms linearly organize and move

east-northeastward across the Ark-La-Tex region.



The severe thunderstorm watch area is approximately along and 85

statute miles east and west of a line from 55 miles west of

Huntsville TX to 40 miles north northeast of Texarkana AR. For a

complete depiction of the watch see the associated watch outline

update (WOUS64 KWNS WOU9).



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 208...



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

24025.



...Guyer

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