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Severe Thunderstorm Watch 337
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WW0337 Radar
Hazard Tornadoes EF2+ Tornadoes
Likelihood Low Very Low
Severe Wind 65 kt+ Wind
Low Low
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.
   SEL7
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 337
   NWS STORM PREDICTION CENTER NORMAN OK
   610 AM CDT MON MAY 23 2011
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
   
          SOUTHEAST KANSAS
          SOUTHWEST AND WEST-CENTRAL MISSOURI
          NORTHEAST OKLAHOMA
   
   EFFECTIVE THIS MONDAY MORNING AND AFTERNOON FROM 610 AM UNTIL 100
   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 40 MILES WEST
   NORTHWEST OF BARTLESVILLE OKLAHOMA TO 70 MILES NORTHEAST OF
   SPRINGFIELD MISSOURI.  FOR A COMPLETE DEPICTION OF THE WATCH SEE
   THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU7).
   
   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...NEAR THE NOSE OF A SOUTHWESTERLY LOW LEVEL
   JET...ELEVATED TSTMS ARE EXPECTED TO CONTINUE TO INCREASE/SPREAD
   GENERALLY EASTWARD THROUGH THE EARLY/MID MORNING HOURS ACROSS
   PORTIONS OF SOUTHEAST KS/NORTHEAST OK AND SOUTHWEST/WEST-CENTRAL MO.
   GIVEN STEEP LAPSE RATES ALOFT/AMPLE ELEVATED INSTABILITY...THE
   STRONGEST TSTMS WILL BE CAPABLE OF LARGE HAIL THIS MORNING. IT IS
   POSSIBLE THAT A DAMAGING WIND COULD ALSO DEVELOP BY LATE THIS
   MORNING/MIDDAY INTO MO IF STORMS REMAIN SUSTAINED/ORGANIZE INTO AN
   INCREASINGLY UNSTABLE BOUNDARY LAYER.
   
   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 450. MEAN STORM
   MOTION VECTOR 26030.
   
   
   ...GUYER/CORFIDI
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