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498 

WWUS20 KWNS 112238

SEL7

SPC WW 112238

NMZ000-TXZ000-120500-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 917

NWS STORM PREDICTION CENTER NORMAN OK

435 PM MDT SAT OCT 11 2008



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       SOUTHERN AND EASTERN NEW MEXICO

       FAR WEST TEXAS



EFFECTIVE THIS SATURDAY AFTERNOON AND EVENING FROM 435 PM UNTIL

1100 PM MDT.



HAIL TO 1.5 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 105

STATUTE MILES NORTH AND SOUTH OF A LINE FROM 20 MILES WEST

NORTHWEST OF EL PASO TEXAS TO 45 MILES SOUTH SOUTHEAST OF CANNON

AFB NEW MEXICO.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU7).



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 916...



DISCUSSION...SCTD TSTMS/SUPERCELLS EXPECTED TO PERSIST/DEVELOP IN

STRONGLY SHEARED ENVIRONMENT ALONG SSW-NNE CONFLUENCE BAND IN FAR W

TX/SE NM.  MORE ISOLD STORMS MAY FORM IN S CNTRL NM.  COMBINATION OF

45+ KT DEEP SWLY SHEAR WITH SEASONABLY RICH LOW LVL MOISTURE

SUGGESTS POTENTIAL FOR SVR HAIL/LCLY DMGG WIND.  A TORNADO OR TWO

CANNOT BE RULED OUT IN SE/E CNTRL NM...WHERE SFC SELY FLOW IS

GREATEST.



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

TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60

KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM

MOTION VECTOR 22035.





...CORFIDI

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