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Severe Thunderstorm Watch 744
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WW0744 Radar
Hazard Tornadoes EF2+ Tornadoes
Likelihood Low Very Low
Severe Wind 65 kt+ Wind
Low Low
Severe Hail 2"+ Hail
Moderate Low

Note:  The expiration time in the watch graphic is amended if the watch is replaced, cancelled or extended.
Note: Click for Watch Status Reports.
   SEL4
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 744
   NWS STORM PREDICTION CENTER NORMAN OK
   230 PM CDT SAT SEP 26 2009
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
   
          PARTS OF SOUTHERN ILLINOIS
          SMALL PART OF SOUTHWEST INDIANA
          MUCH OF WESTERN KENTUCKY
          PARTS OF SOUTHEAST MISSOURI
   
   EFFECTIVE THIS SATURDAY AFTERNOON AND EVENING FROM 230 PM UNTIL
   900 PM CDT.
   
   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 EAST
   NORTHEAST OF SALEM ILLINOIS TO 35 MILES SOUTH SOUTHEAST OF
   PADUCAH KENTUCKY.  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...THUNDERSTORMS INCREASING IN NUMBER AND INTENSITY AHEAD
   OF UPPER LOW MOVING EWD ACROSS MO.  SUFFICIENT DEEP LAYER SHEAR
   COUPLED WITH MLCAPES TO 1000 J/KG TO SUPPORT SEVERE THUNDERSTORMS.
   PRIMARY THREAT WILL BE LARGE HAIL AND LOCALLY DAMAGING DOWNBURST
   WINDS AS STORMS MOVE/DEVELOP EWD.
   
   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 25025.
   
   
   ...HALES
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