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Severe Thunderstorm Watch 754
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WW0754 Radar
Note:  The expiration time in the watch graphic is amended if the watch is replaced, cancelled or extended.
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   SEL4
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 754
   NWS STORM PREDICTION CENTER NORMAN OK
   215 PM MDT SUN AUG 27 2006
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
   
          EASTERN COLORADO
          WESTERN KANSAS
          SOUTHWEST NEBRASKA
          NORTHEAST NEW MEXICO
          WESTERN AND CENTRAL OKLAHOMA PANHANDLE
          NORTHWEST TEXAS PANHANDLE
   
   EFFECTIVE THIS SUNDAY AFTERNOON AND EVENING FROM 215 PM UNTIL 900
   PM 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 80
   STATUTE MILES EAST AND WEST OF A LINE FROM 70 MILES WEST
   NORTHWEST OF MCCOOK NEBRASKA TO 30 MILES EAST SOUTHEAST OF
   CLAYTON NEW MEXICO.  FOR A COMPLETE DEPICTION OF THE WATCH SEE
   THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU4).
   
   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...NEUTRALLY TILTED TROUGH EXTENDS N-S OVER ERN CO ATTM. 
   AIR MASS IS MODERATELY UNSTABLE WITH MLCAPES AROUND 1500 J/KG. 
   EXPECT STORMS TO INCREASE IN COVERAGE AND INTENSITY OVER NEXT FEW
   HOURS WITH MAIN THREATS BEING HAIL AND DAMAGING WINDS. GIVEN THAT
   DEEP LAYER SHEAR IS 40-50 KT OVER SERN CO WITH STRONG HORIZONTAL
   SHEAR ASSOCIATED WITH TROUGH...AN ISOLATED TORNADO COULD OCCUR AS
   WELL.
   
   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 400. MEAN STORM
   MOTION VECTOR 25035.
   
   
   ...MCCARTHY
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