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Severe Thunderstorm Watch 750
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WW0750 Radar
Note:  The expiration time in the watch graphic is amended if the watch is replaced, cancelled or extended.
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   SEL0
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 750
   NWS STORM PREDICTION CENTER NORMAN OK
   255 PM MDT FRI JUL 25 2008
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
   
          NORTH CENTRAL AND NORTHEAST COLORADO
          NEBRASKA PANHANDLE
          SOUTHEAST AND EAST CENTRAL WYOMING
   
   EFFECTIVE THIS FRIDAY AFTERNOON AND EVENING FROM 255 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 75
   STATUTE MILES EAST AND WEST OF A LINE FROM 45 MILES WEST
   SOUTHWEST OF AKRON COLORADO TO 50 MILES EAST NORTHEAST OF DOUGLAS
   WYOMING.  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...CONTINUE...WW 749...
   
   DISCUSSION...THUNDERSTORMS ARE EXPECTED TO CONTINUE DEVELOPING THIS
   AFTERNOON WITHIN MOIST LOW LEVEL UPSLOPE FLOW /20-25 KT SELY WINDS
   ON KFTG VAD PROFILE/ REGIME OVER NRN CO AND SERN WY.  STEEP LAPSE
   RATES COUPLED WITH SURFACE DEW POINTS IN THE 50S ARE CONTRIBUTING TO
   MLCAPE OF 1000-1500 J/KG.  ALTHOUGH WINDS WEAKEN IN THE 2-4 KM AGL
   LAYER...STRONG DIRECTIONAL SHEAR AND WINDS STRENGTHENING TO 30-40 KT
   ABOVE 5-6 KM AGL ARE RESULTING IN DEEP LAYER SHEAR SUPPORTIVE OF
   SEVERE THUNDERSTORMS INCLUDING ISOLATED SUPERCELLS.  ACTIVITY IS
   EXPECTED TO GRADUALLY PROPAGATE WITH AN ELY COMPONENT INTO THE
   INCREASING MOISTURE FIELD EAST OF THE FRONT RANGE.
   
   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.
   
   
   ...WEISS
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Page last modified: July 26, 2008
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