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000 

WWUS20 KWNS 130447

SEL2

SPC WW 130447

NMZ000-OKZ000-TXZ000-131200-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 132

NWS STORM PREDICTION CENTER NORMAN OK

1150 PM CDT THU APR 12 2007



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       SMALL PART OF SOUTHEASTERN NEW MEXICO

       SMALL PART OF SOUTHWEST OKLAHOMA

       NORTHWEST TEXAS INCLUDING SOUTHERN PANHANDLE



EFFECTIVE THIS THURSDAY NIGHT AND FRIDAY MORNING FROM 1150 PM

UNTIL 700 AM CDT.



HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70

MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 115

STATUTE MILES EAST AND WEST OF A LINE FROM 70 MILES NORTHWEST OF

CHILDRESS TEXAS TO 55 MILES WEST SOUTHWEST OF SAN ANGELO TEXAS.

FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH

OUTLINE UPDATE (WOUS64 KWNS WOU2).



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...THIS SEVERE THUNDERSTORM WATCH REPLACES

SEVERE THUNDERSTORM WATCH NUMBER 131. WATCH NUMBER 131 WILL NOT

BE IN EFFECT AFTER 1150 PM CDT.



DISCUSSION...MOISTURE AND INSTABILITY CONTINUES TO INCREASE ACROSS

WATCH AREA ON 50KT LOW LEVEL JET. WITH APPROACH OF STRONG UPPER

SYSTEM OVER AZ...EXPECT SEVERE THUNDERSTORMS TO CONTINUE ACROSS SRN

PANHANDLE AND DEVELOP SOUTHWARD IN RESPONSE TO LARGE SCALE ASCENT

WITH APPROACHING TROUGH.  SUPERCELLS ARE LIKELY GIVEN VERY STRONG

SHEAR AND STEEP LAPSE RATES SUPPORTING LARGE HAIL AND DAMAGING

WINDS.



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 450. MEAN STORM

MOTION VECTOR 24035.





...HALES

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