tonado watch 345 EFFECTIVE THIS SUNDAY AFTERNOON AND EVENING FROM 330 PM UNTIL 1100 PM CDT.

Hazard Tornadoes EF2+ Tornadoes Likelihood Moderate Low

Severe Wind 65 kt+ Wind Moderate Moderate

Severe Hail 2"+ Hail Moderate Moderate

Note:  The expiration time in the watch graphic is amended if the watch is replaced, cancelled or extended.
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SEL5
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   TORNADO WATCH NUMBER 345
   NWS STORM PREDICTION CENTER NORMAN OK
   330 PM CDT SUN JUN 3 2012
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   TORNADO WATCH FOR PORTIONS OF 
   
          NORTHERN ARKANSAS
          EXTREME SOUTHERN MISSOURI
          EXTREME NORTHEAST OKLAHOMA
   
   EFFECTIVE THIS SUNDAY AFTERNOON AND EVENING FROM 330 PM UNTIL
   1100 PM CDT.
   
   TORNADOES...HAIL TO 2.5 INCHES IN DIAMETER...THUNDERSTORM WIND
   GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE
   AREAS.
   
   THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 55 STATUTE
   MILES NORTH AND SOUTH OF A LINE FROM 40 MILES SOUTH SOUTHWEST OF
   GROVE OKLAHOMA TO 30 MILES EAST NORTHEAST OF BATESVILLE ARKANSAS.
    FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
   OUTLINE UPDATE (WOUS64 KWNS WOU5).
   
   REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR
   TORNADOES AND 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.
   
   OTHER WATCH INFORMATION...CONTINUE...WW 344...
   
   DISCUSSION...LATEST GUIDANCE HAS SUGGESTED A MORE RAPID ONSET OF
   DEEP CONVECTION ACROSS THE WATCH AREA IN THE NEXT 1-2 HOURS.
   MAGNITUDE OF INSTABILITY /MLCAPE AROUND 3000 J PER KG/ WILL
   CONTRIBUTE TO STOUT UPDRAFTS WHERE 30-40KT EFFECTIVE VERTICAL SHEAR
   WILL CONTRIBUTE TO STORM ROTATION AND PERSISTENCE. THIS ENVIRONMENT
   WILL CLEARLY SUPPORT VERY LARGE HAIL AND DAMAGING WINDS. TORNADO
   POTENTIAL IS A BIT MORE SUBTLE BUT SUBSTANTIAL ENOUGH TO WARRANT A
   TORNADO WATCH. THIS POTENTIAL MAY EVOLVE ALONG THE WARM FRONT
   SITUATED WEST TO EAST ALONG THE CENTER OF THE WATCH AREA....SOUTH OF
   THE MO BORDER. ENHANCED LOW LEVEL SHEAR ALONG AND IMMEDIATELY TO THE
   NORTH OF THIS BOUNDARY IS SUFFICIENT TO RESULT IN STRONGER LOW LEVEL
   STORM ROTATION AND THE CHANCE OF A TORNADIC SUPERCELL OR TWO INTO
   THE EVENING BEFORE STORMS MERGE AND SPREAD EAST ALONG AND SOUTH OF
   THE MO/AR BORDER.
   
   AVIATION...TORNADOES AND 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
   500. MEAN STORM MOTION VECTOR 27030.