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492 

WWUS20 KWNS 192242

SEL9

SPC WW 192242

TXZ000-200600-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 329

NWS STORM PREDICTION CENTER NORMAN OK

540 PM CDT WED JUN 19 2013



THE NWS STORM PREDICTION CENTER HAS ISSUED A



* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

  TEXAS PANHANDLE



* EFFECTIVE THIS WEDNESDAY AFTERNOON AND THURSDAY MORNING FROM

  540 PM UNTIL 100 AM CDT.



* PRIMARY THREATS INCLUDE...

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

    INCHES IN DIAMETER POSSIBLE

  SEVERAL DAMAGING WIND GUSTS TO 70 MPH POSSIBLE



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 60

STATUTE MILES EAST AND WEST OF A LINE FROM 35 MILES NORTH

NORTHWEST OF AMARILLO TEXAS TO 65 MILES SOUTHEAST OF LUBBOCK

TEXAS.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED

WATCH OUTLINE UPDATE (WOUS64 KWNS WOU9).



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 327...WW 328...



DISCUSSION...ROBUST TSTM DEVELOPMENT AND A COUPLE OF ISOLATED

SUPERCELL STORMS WITH SOME TORNADO POTENTIAL ARE EXPECTED TO PERSIST

AND DRIFT EAST ACROSS NARROW CORRIDOR OF STRONG INSTABILITY LOCATED

NEAR THE TX/NM BORDER THROUGH THE EVENING. STORMS CURRENTLY

CONSOLIDATING OVER ROOSEVELT COUNTY NM MAY EVOLVE INTO SMALL MCS

THAT MAY PERSIST EAST ALONG RESIDUAL OUTFLOW BOUNDARY WELL INTO THE

EVENING. LARGE HAIL AND DAMAGING DOWNBURST WINDS APPEAR TO BE

PRIMARY THREATS BUT ISOLATED TORNADO OR TWO CANNOT BE RULED

OUT...ESPECIALLY AS UPDRAFTS ENCOUNTER LOCALLY ENHANCED SRH NEAR THE

RESIDUAL OUTFLOW BOUNDARY.



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

TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60

KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 550. MEAN STORM

MOTION VECTOR 27025.





...CARBIN

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