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Severe Thunderstorm Watch 47
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WW0047 Radar
Note:  The expiration time in the watch graphic is amended if the watch is replaced, cancelled or extended.
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   SEL7
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 47
   NWS STORM PREDICTION CENTER NORMAN OK
   950 PM CST SAT MAR 7 2009
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
   
          SOUTH CENTRAL INTO EAST CENTRAL KANSAS
   
   EFFECTIVE THIS SATURDAY NIGHT AND SUNDAY MORNING FROM 950 PM
   UNTIL 200 AM CST.
   
   HAIL TO 1.5 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 45
   STATUTE MILES NORTH AND SOUTH OF A LINE FROM 40 MILES SOUTH
   SOUTHWEST OF HUTCHINSON KANSAS TO 55 MILES NORTH NORTHEAST OF
   CHANUTE KANSAS.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
   ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU7).
   
   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 45. WATCH NUMBER 45 WILL NOT BE
   IN EFFECT AFTER 950 PM CST. CONTINUE...WW 46...
   
   DISCUSSION...THUNDERSTORMS WILL CONTINUE TO TRAIN ALONG A
   SLOW-MOVING FRONT FROM S CENTRAL INTO E CENTRAL KS FOR THE NEXT FEW
   HOURS.  A 50 KT LLJ AND EJECTING MID LEVEL TROUGH WILL FOCUS ASCENT
   ALONG THE FRONT AND SUPPORT CONTINUED THUNDERSTORM DEVELOPMENT UNTIL
   THE SURFACE WAVE LIFTS NEWD INTO MO BY ABOUT 09Z.  INSTABILITY AND
   VERTICAL SHEAR WILL REMAIN SUFFICIENT FOR THE PRODUCTION OF AT LEAST
   ISOLATED LARGE HAIL AND DAMAGING WINDS.
   
   AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
   TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60
   KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 450. MEAN STORM
   MOTION VECTOR 25040.
   
   
   ...THOMPSON
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Page last modified: March 08, 2009
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