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Tornado Watch 450
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WW0450 Radar
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.
Note: Click for Watch Status Reports.
   SEL0
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   TORNADO WATCH NUMBER 450
   NWS STORM PREDICTION CENTER NORMAN OK
   710 PM CDT WED JUN 17 2009
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   TORNADO WATCH FOR PORTIONS OF 
   
          PORTIONS OF CENTRAL AND SOUTHERN MISSOURI
   
   EFFECTIVE THIS WEDNESDAY NIGHT AND THURSDAY MORNING FROM 710 PM
   UNTIL 200 AM 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 50 STATUTE
   MILES NORTH AND SOUTH OF A LINE FROM 50 MILES NORTH OF
   SPRINGFIELD MISSOURI TO 15 MILES EAST SOUTHEAST OF FARMINGTON
   MISSOURI.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
   ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU0).
   
   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 440...WW 441...WW
   442...WW 443...WW 445...WW 444...WW 446...WW 447...WW 448...WW
   449...
   
   DISCUSSION...THUNDERSTORMS CONTINUE TO INCREASE ACROSS THE NORTHERN
   HALF OF MISSOURI -- WITHIN WW 443...AND ARE MOVING INCREASINGLY-SEWD
   WITH TIME.  AS A SWLY LOW-LEVEL JET INCREASES THIS EVENING...EXPECT
   SEWD PROPAGATION OF CONVECTION TO CONTINUE.  A VERY UNSTABLE AIRMASS
   /MIXED-LAYER CAPE IN EXCESS OF 4000 J/KG/ IS IN PLACE...AND
   VEERING/INCREASING FLOW WITH HEIGHT IS INDICATED ACROSS THE AREA
   YIELDING SHEAR FAVORABLE FOR SUPERCELL STORMS.  THEREFORE...EXPECT A
   THREAT FOR LARGE HAIL AND ISOLATED TORNADOES TO CONTINUE. 
   ADDITIONALLY...THE POTENTIAL FOR DAMAGING WINDS COULD INCREASE WITH
   TIME...SHOULD STORMS MERGE INTO AN MCS AND DEVELOP A
   WELL-ORGANIZED/SEWD-PROPAGATING COLD POOL.
   
   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 31035.
   
   
   ...GOSS
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