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WWUS20 KWNS 230453

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SPC WW 230453

OKZ000-TXZ000-231200-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 350

NWS STORM PREDICTION CENTER NORMAN OK

1150 PM CDT SUN JUN 22 2014



THE NWS STORM PREDICTION CENTER HAS ISSUED A



* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

  SOUTHWESTERN OKLAHOMA

  NORTHWEST TEXAS AND THE TEXAS SOUTH PLAINS



* EFFECTIVE THIS SUNDAY NIGHT AND MONDAY MORNING FROM 1150 PM

  UNTIL 700 AM CDT.



* PRIMARY THREATS INCLUDE...

  SCATTERED DAMAGING WINDS LIKELY WITH ISOLATED SIGNIFICANT GUSTS

    TO 80 MPH POSSIBLE

  ISOLATED VERY LARGE HAIL EVENTS TO 2 INCHES IN DIAMETER POSSIBLE



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 60

STATUTE MILES NORTH AND SOUTH OF A LINE FROM 70 MILES WEST OF

LUBBOCK TEXAS TO 15 MILES NORTHEAST OF WICHITA FALLS TEXAS.  FOR

A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH

OUTLINE UPDATE (WOUS64 KWNS WOU0).



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 348...WW 349...



DISCUSSION...SVR MCS WITH HISTORY OF SIGNIFICANT/DAMAGING WINDS IS

EXPECTED TO PROCEED SSEWD ACROSS TX PANHANDLE INTO PORTIONS SOUTH

PLAINS AND NW TX...WITH SOME LATERAL EXPANSION/PROPAGATION PSBL INTO

AREAS NEAR I-44 AND W OF I-27.  ADDITIONAL DEVELOPMENT ALSO IS PSBL

INVOF GUST FRONT INTERSECTIONS BETWEEN THIS ACTIVITY AND INITIALLY

NON-SVR LINE MOVING EWD FROM NM.  MAIN MCS...CAUSING ISALLOBARIC

PERTURBATIONS TO NEAR 9 MB PER 2 HRS IN ITS WAKE...WILL CONTINUE TO

FORWARD-PROPAGATE WITH STG FORCED ASCENT OF FAVORABLY MOIST/30-35 KT

SLY LLJ PARCELS.  EXPECT STORM-RELATIVE INFLOW EXCEEDING 60 KT JUST

ABOVE SFC.



AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT

TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 70

KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 600. MEAN STORM

MOTION VECTOR 33035.





...EDWARDS

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