

976 

WWUS20 KWNS 140157

SEL1

SPC WW 140157

OKZ000-140700-



URGENT - IMMEDIATE BROADCAST REQUESTED

Severe Thunderstorm Watch Number 581

NWS Storm Prediction Center Norman OK

855 PM CDT Tue Aug 13 2019



The NWS Storm Prediction Center has issued a



* Severe Thunderstorm Watch for portions of

  North-central and northwestern Oklahoma



* Effective this Tuesday night and Wednesday morning from 855 PM

  until 200 AM CDT.



* Primary threats include...

  Isolated damaging wind gusts to 70 mph possible



SUMMARY...Though likely past peak by then, a bowing complex of

thunderstorms with a substantial pressure/thermal perturbations in

Kansas still may be producing severe gusts as it enters northern

Oklahoma.  This activity should weaken as it moves into a

progressively more-stable low- and middle-level air mass toward the

southern fringe of the watch area.



The severe thunderstorm watch area is approximately along and 85

statute miles east and west of a line from 20 miles northwest of

Alva OK to 50 miles south southwest of Enid OK. 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.



&&



OTHER WATCH INFORMATION...CONTINUE...WW 579...WW 580...



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

1 inch. Extreme turbulence and surface wind gusts to 60 knots. A few

cumulonimbi with maximum tops to 500. Mean storm motion vector

32040.



...Edwards

