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Severe Thunderstorm Watch 109
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WW0109 Radar
Hazard Tornadoes EF2+ Tornadoes
Likelihood Very Low Very Low
Severe Wind 65 kt+ Wind
Moderate Low
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 109
   NWS STORM PREDICTION CENTER NORMAN OK
   1015 PM CDT MON APR 15 2013
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
   
          SOUTHEASTERN KANSAS
          CENTRAL AND SOUTHWEST MISSOURI
          NORTHEAST OKLAHOMA
   
   EFFECTIVE THIS MONDAY NIGHT AND TUESDAY MORNING FROM 1015 PM
   UNTIL 500 AM CDT.
   
   HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 65
   MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.
   
   THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 65
   STATUTE MILES NORTH AND SOUTH OF A LINE FROM 20 MILES WEST OF
   BARTLESVILLE OKLAHOMA TO 50 MILES EAST OF COLUMBIA MISSOURI.  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...WARM ADVECTION ASSOCIATED WITH AN INCREASING LOW-LEVEL
   JET ATOP A COOL POST-FRONTAL AIRMASS WILL CONTINUE TO SUPPORT
   ELEVATED THUNDERSTORM DEVELOPMENT THIS EVENING/OVERNIGHT.  WITH
   STEEP MID-LEVEL LAPSE RATES SUPPORTING 1000 TO 1500 J/KG ELEVATED
   CAPE AND 40 TO 50 KT MID-LEVEL WEST-SOUTHWESTERLIES CONTRIBUTING TO
   CLOUD-LAYER SHEAR SUPPORTIVE OF ORGANIZED/INTENSE UPDRAFTS...LARGE
   HAIL CAN BE EXPECTED ACROSS THIS AREA.
   
   AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
   TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 55
   KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM
   MOTION VECTOR 24035.
   
   
   ...GOSS
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Page last modified: April 16, 2013
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