

595 

WWUS20 KWNS 202343

SEL0

SPC WW 202343

NMZ000-TXZ000-210600-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 700

NWS STORM PREDICTION CENTER NORMAN OK

545 PM MDT WED OCT 20 2010



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       SOUTH CENTRAL NEW MEXICO

       FAR WEST TEXAS



EFFECTIVE THIS WEDNESDAY AFTERNOON FROM 545 PM UNTIL MIDNIGHT MDT.



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 60

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

RUIDOSO NEW MEXICO TO 85 MILES SOUTH SOUTHEAST OF EL PASO 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.



DISCUSSION...BROKEN BAND OF SEVERE STORMS...SOME WITH SUPERCELL

CHARACTERISTICS...WILL LIKELY PERSIST FOR SEVERAL MORE HOURS IN

RESPONSE TO THE APPROACH OF AN EMBEDDED SPEED MAX OVER NRN

MEXICO...AND AN INFLUX OF LOW-LEVEL MOISTURE UP THE RIO GRANDE AND

PECOS VALLEYS.  THE STRONGER STORMS WILL BE CAPABLE OF PRODUCING

LARGE HAIL AND DAMAGING GUSTS THROUGH THE EARLY OVERNIGHT HOURS.



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 500. MEAN STORM

MOTION VECTOR 20025.





...THOMPSON

