

000 

WWUS20 KWNS 070253

SEL1

SPC WW 070253

NMZ000-OKZ000-TXZ000-071000-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 271

NWS STORM PREDICTION CENTER NORMAN OK

955 PM CDT TUE MAY 6 2008



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       PARTS OF EASTERN NEW MEXICO

       SMALL PART OF WESTERN OKLAHOMA INCLUDING THE PANHANDLE

       PARTS OF NORTHWESTERN TEXAS INCLUDING THE PANHANDLE



EFFECTIVE THIS TUESDAY NIGHT AND WEDNESDAY MORNING FROM 955 PM

UNTIL 500 AM CDT.



HAIL TO 2.5 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 140

STATUTE MILES NORTH AND SOUTH OF A LINE FROM 65 MILES NORTHWEST

OF HOBBS NEW MEXICO TO 60 MILES SOUTH SOUTHEAST OF GAGE OKLAHOMA.

 FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH

OUTLINE UPDATE (WOUS64 KWNS WOU1).



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

TORNADO WATCH NUMBER 267...TORNADO WATCH NUMBER 269. WATCH NUMBER

267 269 WILL NOT BE IN EFFECT AFTER 955 PM CDT. CONTINUE...WW

266...WW 268...WW 270...



DISCUSSION...SEVERE THUNDERSTORMS ARE EXPECTED TO CONTINUE TO

REDEVELOP ACROSS MUCH OF THE WATCH AREA THRU THE NIGHT AS STRONG

UPPER TROUGH AND ASSOCIATED ASCENT APPROACH FROM THE W.  INCREASING

AND BACKING LOW LEVEL JET WILL ENHANCE SHEAR AND MAINTAIN THREAT OF

SUPERCELLS. PRIMARY THREAT WILL BE LARGE HAIL AND LOCALIZED DAMAGING

WINDS.



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

TO 2.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60

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

MOTION VECTOR 24030.





...HALES

