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000 

WWUS20 KWNS 021852

SEL0

SPC WW 021852

NMZ000-TXZ000-030200-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 210

NWS STORM PREDICTION CENTER NORMAN OK

155 PM CDT WED MAY 2 2007



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       SOUTHEASTERN NEW MEXICO

       PARTS OF SOUTHWEST TEXAS



EFFECTIVE THIS WEDNESDAY AFTERNOON AND EVENING FROM 155 PM UNTIL

900 PM 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 90

STATUTE MILES EITHER SIDE OF A LINE FROM 55 MILES WEST NORTHWEST

OF ROSWELL NEW MEXICO TO 70 MILES SOUTH SOUTHEAST OF MIDLAND

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

WATCH OUTLINE UPDATE (WOUS64 KWNS WOU0).



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 208. WATCH NUMBER 208 WILL NOT

BE IN EFFECT AFTER 155 PM CDT. CONTINUE...WW 209...



DISCUSSION...THUNDERSTORMS ARE REDEVELOPING AHEAD OF UPPER TROUGH.

WITH STEEP LAPSE RATES AND 30-40 KT DEEP LAYER SHEAR...LARGE HAIL

WILL BE PRIMARY THREAT WITH THESE STORMS.  ISOLATED SUPERCELLS ARE

LIKELY WITH AN ENHANCED SEVERE THREAT INCLUDING DOWNBURSTS 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 26020.





...HALES

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