SEL4
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 4
   NWS STORM PREDICTION CENTER NORMAN OK
   920 PM CST WED FEB 4 2004
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
   
          CENTRAL AND EASTERN TEXAS
   
   EFFECTIVE THIS WEDNESDAY NIGHT AND THURSDAY MORNING FROM 920 PM
   UNTIL 300 AM CST.
   
   HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 60
   MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.
   
   THE SEVERE THUNDERSTORM WATCH AREA IS ALONG AND 70 STATUTE MILES
   EAST AND WEST OF A LINE FROM 25 MILES EAST NORTHEAST OF PARIS
   TEXAS TO 35 MILES SOUTH SOUTHEAST OF HONDO TEXAS.
   
   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...ELEVATED THUNDERSTORMS EXPECTED TO INCREASE IN
   COVERAGE/INTENSITY DURING THE NEXT FEW HOURS BEHIND SHALLOW COLD
   FRONT NOW EXTENDING FROM SE OF GGG TO SE OF SAT.  LARGE SCALE
   ASCENT/MID LEVEL COOLING ASSOCIATED WITH SHORTWAVE TROUGH NOW
   CROSSING THE BIG BEND REGION WILL SOON OVERSPREAD WW AREA...WHERE
   FAIRLY RICH ELEVATED MOISTURE INFLOW WILL CONTRIBUTE TO ELEVATED
   CAPE ON THE ORDER OF 500-1000 J/KG.  COUPLED WITH 40+ KT CLOUD LAYER
   SHEAR...THREAT WILL EXIST FOR LARGE HAIL IN ANY SUSTAINED STORMS.
   
   AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
   TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 50
   KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 450. MEAN STORM
   MOTION VECTOR 23040.
   
   
   ...CORFIDI