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URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 214

NWS STORM PREDICTION CENTER NORMAN OK

205 PM CDT THU MAY 23 2013



THE NWS STORM PREDICTION CENTER HAS ISSUED A



* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

  SOUTHEAST NEW MEXICO

  SOUTHWEST TEXAS



* EFFECTIVE THIS THURSDAY AFTERNOON AND EVENING FROM 205 PM UNTIL

  1000 PM CDT.



* PRIMARY THREATS INCLUDE...

  SEVERAL DAMAGING WIND GUSTS LIKELY WITH A FEW SIGNIFICANT GUSTS

    TO 80 MPH POSSIBLE

  SEVERAL LARGE HAIL EVENTS WITH A FEW VERY LARGE HAIL EVENTS TO 2

    INCHES IN DIAMETER POSSIBLE



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 125

STATUTE MILES EAST AND WEST OF A LINE FROM 15 MILES NORTHWEST OF

BIG SPRING TEXAS TO 85 MILES SOUTHWEST OF DRYDEN TEXAS.  FOR A

COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE

UPDATE (WOUS64 KWNS WOU4).



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 213...



DISCUSSION...RAPID STORM DEVELOPMENT IS NOW UNDERWAY...ACROSS THE

MOUNTAINS OF SOUTHWEST TEXAS INTO SOUTHEAST NEW MEXICO.  IN THE

PRESENCE OF THERMODYNAMIC PROFILES CHARACTERIZED BY VERY STEEP

MID-LEVEL LAPSE RATES AND LARGE CAPE...VERTICAL SHEAR MAY BE

MARGINALLY SUFFICIENT FOR AT LEAST SHORT-LIVED UPDRAFT ROTATION IN

STRONGEST STORMS.  LIGHT WESTERLY DEEP LAYER MEAN FLOW MAY AID

PROPAGATION INTO PARTS OF THE RIO GRANDE VALLEY AND EDWARDS

PLATEAU...AS SURFACE COLD POOLS CONSOLIDATE LATER THIS AFTERNOON.

IN ADDITION TO THE RISK FOR LARGE HAIL...A FEW STRONG WIND GUSTS ARE

PROBABLE...BOTH WITH DOWNBURSTS AND ALONG THE OUTFLOW GUST FRONT.



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 550. MEAN STORM

MOTION VECTOR 27010.





...KERR

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