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218 

WWUS20 KWNS 290636

SEL4

SPC WW 290636

ARZ000-OKZ000-291100-



URGENT - IMMEDIATE BROADCAST REQUESTED

Severe Thunderstorm Watch Number 284

NWS Storm Prediction Center Norman OK

140 AM CDT Wed May 29 2019



The NWS Storm Prediction Center has issued a



* Severe Thunderstorm Watch for portions of

  Western Arkansas

  Eastern Oklahoma



* Effective this Wednesday morning from 140 AM 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...Semi-organized/sustained clusters of storms will continue

to move east-northeastward across the region overnight, in

association with a moist air mass and strong low/mid-level jet.

Isolated severe hail will be a possibility, and damaging winds could

also occur. A brief tornado cannot be entirely ruled out.



The severe thunderstorm watch area is approximately along and 40

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

Muskogee OK to 35 miles east southeast of Fayetteville AR. 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.



&&



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 550. Mean storm motion vector

24035.



...Guyer

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