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WWUS20 KWNS 041929

SEL1

SPC WW 041929

ARZ000-KSZ000-MOZ000-OKZ000-050200-



URGENT - IMMEDIATE BROADCAST REQUESTED

Severe Thunderstorm Watch Number 121

NWS Storm Prediction Center Norman OK

230 PM CDT Tue Apr 4 2017



The NWS Storm Prediction Center has issued a



* Severe Thunderstorm Watch for portions of

  Northwest Arkansas

  Southeast Kansas

  Southwest Missouri

  Central and Northeast Oklahoma



* Effective this Tuesday afternoon and evening from 230 PM until

  900 PM 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...Scattered severe thunderstorms are expected to develop

over central Oklahoma by 4pm.  This activity will spread/develop

northeast into portions of southeast Kansas and southwest Missouri

and northwest Arkansas.  Large hail and damaging winds are the

primary threats, though a tornado or two could be noted with the

strongest activity near the I-44 corridor.



The severe thunderstorm watch area is approximately along and 60

statute miles north and south of a line from 5 miles southwest of

Oklahoma City OK to 15 miles east of Monett MO. For a complete

depiction of the watch see the associated watch outline update

(WOUS64 KWNS WOU1).



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

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

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

21030.



...Darrow

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