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WWUS20 KWNS 260228

SEL3

SPC WW 260228

ARZ000-KSZ000-MOZ000-OKZ000-261000-



URGENT - IMMEDIATE BROADCAST REQUESTED

Severe Thunderstorm Watch Number 663

NWS Storm Prediction Center Norman OK

930 PM CDT Wed Sep 25 2019



The NWS Storm Prediction Center has issued a



* Severe Thunderstorm Watch for portions of

  northwestern Arkansas

  southeastern Kansas

  southwestern Missouri

  parts of northern and eastern Oklahoma



* Effective this Wednesday night and Thursday morning from 930 PM

  until 500 AM CDT.



* Primary threats include...

  Scattered damaging wind gusts to 65 mph possible

  Scattered large hail events to 1.5 inches in diameter possible



SUMMARY...Thunderstorms are expected to continue developing across

the southern Kansas/northern Oklahoma vicinity, and will spread

southeastward with time.  Along with potential for hail with

stronger cells, locally damaging wind potential should increase with

time as storms grow upscale into clusters across eastern Oklahoma

and shift into northwest Arkansas over the next several hours.



The severe thunderstorm watch area is approximately along and 60

statute miles north and south of a line from 20 miles southwest of

Ponca City OK to 30 miles southeast of Harrison AR. For a complete

depiction of the watch see the associated watch outline update

(WOUS64 KWNS WOU3).



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 55 knots. A

few cumulonimbi with maximum tops to 550. Mean storm motion vector

30030.



...Goss

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