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WWUS20 KWNS 220958

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OKZ000-221700-



URGENT - IMMEDIATE BROADCAST REQUESTED

Severe Thunderstorm Watch Number 201

NWS Storm Prediction Center Norman OK

455 AM CDT Fri May 22 2020



The NWS Storm Prediction Center has issued a



* Severe Thunderstorm Watch for portions of

  Central and eastern Oklahoma



* Effective this Friday morning from 455 AM until NOON CDT.



* Primary threats include...

  Scattered damaging winds likely with isolated significant gusts

    to 80 mph possible

  A tornado or two possible



SUMMARY...This watch adjoins the extended portion of watch 200.  An

MCS, with a well-developed cold pool and theta-e/pressure

perturbation, will move east-southeastward on either side of an

instability gradient accompanying a warm-frontal zone.  Multiple

Oklahoma Mesonet stations have measured severe winds with this

complex in the last 1-2 hours.  Sporadic gusts above severe limits

remain possible as this complex forward-propagates into eastern

Oklahoma.



The severe thunderstorm watch area is approximately along and 70

statute miles either side of a line from 20 miles west northwest of

Chandler OK to 50 miles southeast of Muskogee 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 200...



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

1 inch. Extreme turbulence and surface wind gusts to 70 knots. A few

cumulonimbi with maximum tops to 550. Mean storm motion vector

29045.



...Edwards

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