

664 

WWUS20 KWNS 300301

SEL5

SPC WW 300301

OKZ000-TXZ000-301000-



URGENT - IMMEDIATE BROADCAST REQUESTED

Severe Thunderstorm Watch Number 325

NWS Storm Prediction Center Norman OK

1000 PM CDT Sun Jul 29 2018



The NWS Storm Prediction Center has issued a



* Severe Thunderstorm Watch for portions of

  Northwestern and central Oklahoma and the eastern Oklahoma

Panhandle

  The northeastern Texas Panhandle



* Effective this Sunday night and Monday morning from 1000 PM

  until 500 AM CDT.



* Primary threats include...

  Scattered damaging winds likely with isolated significant gusts

    to 75 mph possible

  Scattered large hail and isolated very large hail events to 2

    inches in diameter possible



SUMMARY...Severe storm cluster over southwestern Kansas should

continue moving southeastward at about 40 kt, with some upscale

growth expected as the storms move into the instability corridor

across Oklahoma.  Large hail will be possible with the more intense

embedded storms/supercells, while the threat for damaging winds will

increase as the storms evolve into more linear/bowing segments

overnight.



The severe thunderstorm watch area is approximately along and 105

statute miles east and west of a line from 65 miles northwest of

Gage OK to 20 miles south of Chickasha OK. For a complete depiction

of the watch see the associated watch outline update (WOUS64 KWNS

WOU5).



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 322...WW 323...WW 324...



AVIATION...A few severe thunderstorms with hail surface and aloft to

2 inches. Extreme turbulence and surface wind gusts to 65 knots. A

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

32040.



...Thompson

