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Severe Thunderstorm Watch 261
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WW0261 Radar
Hazard Tornadoes EF2+ Tornadoes
Likelihood 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.
   SEL1
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 261
   NWS STORM PREDICTION CENTER NORMAN OK
   735 PM CDT THU MAY 7 2009
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
   
          NORTHWEST MISSOURI
   
   EFFECTIVE THIS THURSDAY NIGHT AND FRIDAY MORNING FROM 735 PM
   UNTIL 200 AM 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 25 MILES WEST OF
   SAINT JOSEPH MISSOURI TO 45 MILES SOUTH SOUTHEAST OF KIRKSVILLE
   MISSOURI.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
   ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU1).
   
   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...THIS SEVERE THUNDERSTORM WATCH REPLACES
   TORNADO WATCH NUMBER 258. WATCH NUMBER 258 WILL NOT BE IN EFFECT
   AFTER 735 PM CDT. CONTINUE...WW 259...WW 260...
   
   DISCUSSION...SCTD TSTMS EXPECTED TO CONTINUE FORMING INVOF WEAK W-E
   FRONT AND ALONG RELATED OUTFLOW BOUNDARIES ACROSS NRN MO AS MODEST
   SWLY LLJ VEERS AND SLIGHTLY STRENGTHENS THROUGH THE EVE.  UPR LVL
   FORCING FOR ASCENT EXPECTED TO BE WEAK...SO STORM COVERAGE MAY
   REMAIN LIMITED.  BUT ANY SUSTAINED STORMS THAT DO FORM WILL HAVE
   POTENTIAL FOR SVR HAIL/WIND GIVEN INCREASING MOISTURE INFLOW WITH
   LLJ...AND PROXIMITY OF 50-60 KT WNW MID LVL FLOW.  STORMS IN ERN
   PART OF WW MAY MERGE INTO A FORWARD-PROPAGATING MCS WITH EMBEDDED
   BOWING SEGMENTS/DMGG WIND.
   
   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 500. MEAN STORM
   MOTION VECTOR 29035.
   
   
   ...CORFIDI
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Page last modified: May 08, 2009
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