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Severe Thunderstorm Watch 420
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WW0420 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.
   SEL0
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 420
   NWS STORM PREDICTION CENTER NORMAN OK
   1250 PM CDT MON JUN 15 2009
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
   
          SMALL PART OF SOUTHEAST KANSAS
          PARTS OF SOUTHERN MISSOURI
   
   EFFECTIVE THIS MONDAY AFTERNOON AND EVENING FROM 1250 PM UNTIL
   800 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 60
   STATUTE MILES NORTH AND SOUTH OF A LINE FROM 50 MILES NORTHEAST
   OF WEST PLAINS MISSOURI TO 35 MILES WEST NORTHWEST OF JOPLIN
   MISSOURI.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
   ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU0).
   
   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...CONTINUE...WW 419...
   
   DISCUSSION...WITH A MDTLY UNSTABLE...UNCAPPED AIR MASS IN
   PLACE...THUNDERSTORMS SHOULD INCREASE IN NUMBER AND INTENSITY NEXT
   SEVERAL HOURS ACROSS THE WATCH AREA.  WITH 30KT OF EFFECTIVE
   SHEAR...STORM MODE WILL BE MULTICELLULAR AND PULSE WITH LARGE HAIL
   AND BRIEF DAMAGING WINDS EXPECTED.
   
   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 550. MEAN STORM
   MOTION VECTOR 27020.
   
   
   ...HALES
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