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Severe Thunderstorm Watch 419
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WW0419 Radar
Hazard Tornadoes EF2+ Tornadoes
Likelihood Low Very Low
Severe Wind 65 kt+ Wind
Moderate Moderate
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.
   SEL9
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 419
   NWS STORM PREDICTION CENTER NORMAN OK
   1035 AM CDT MON JUN 15 2009
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
   
          PARTS OF NORTHEAST ARKANSAS
          PARTS OF SOUTHERN ILLINOIS
          PARTS OF WESTERN KENTUCKY
          PARTS OF SOUTHEASTERN MISSOURI
          MUCH OF WESTERN AND MIDDLE TENNESSEE
   
   EFFECTIVE THIS MONDAY MORNING AND EVENING FROM 1035 AM UNTIL 600
   PM CDT.
   
   HAIL TO 2.5 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 70
   STATUTE MILES NORTH AND SOUTH OF A LINE FROM 45 MILES NORTH
   NORTHWEST OF WALNUT RIDGE ARKANSAS TO 30 MILES SOUTHEAST OF
   NASHVILLE TENNESSEE.  FOR A COMPLETE DEPICTION OF THE WATCH SEE
   THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU9).
   
   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...A VERY MOIST/UNSTABLE AIR MASS RESIDES S OF AREA OF
   ELEVATED STORMS ACROSS ERN MO INTO LWR OH VALLEY.  CONTINUED HEATING
   WILL INITIATE SEVERE THUNDERSTORMS VICINITY OF SURFACE BOUNDARY
   ACROSS NRN PORTION OF WATCH AREA. WITH MLCAPES AOA 3000 J/KG AND
   30-40KT OF EFFECTIVE SHEAR...BOTH LARGE HAIL AND DAMAGING WINDS ARE
   LIKELY...PARTICULARLY ASSOCIATED WITH SUPERCELLS THAT DEVELOP. 
   THERE IS A THREAT OF BRIEF TORNADOES...HOWEVER WIND/HAIL SHOULD BE
   MAIN CONCERN.
   
   AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
   TO 2.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60
   KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 600. MEAN STORM
   MOTION VECTOR 28025.
   
   
   ...HALES
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