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Tornado Watch 39
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   SEL9
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   TORNADO WATCH NUMBER 39
   NWS STORM PREDICTION CENTER NORMAN OK
   745 PM CST FRI FEB 27 2009
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   TORNADO WATCH FOR PORTIONS OF 
   
          CENTRAL ALABAMA
          CENTRAL AND EASTERN MISSISSIPPI
   
   EFFECTIVE THIS FRIDAY NIGHT AND SATURDAY MORNING FROM 745 PM
   UNTIL 300 AM CST.
   
   TORNADOES...HAIL TO 1.5 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 60 STATUTE
   MILES NORTH AND SOUTH OF A LINE FROM 25 MILES SOUTHWEST OF
   GREENWOOD MISSISSIPPI TO 15 MILES EAST SOUTHEAST OF AUBURN
   ALABAMA.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
   ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU9).
   
   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...THIS TORNADO WATCH REPLACES TORNADO
   WATCH NUMBER 38. WATCH NUMBER 38 WILL NOT BE IN EFFECT AFTER 745
   PM CST. 
   
   DISCUSSION...TSTMS/POSSIBLE SUPERCELLS EXPECTED TO PERSIST ALONG AND
   JUST N OF SHALLOW WNW/ESE OUTFLOW BOUNDARY EXTENDING FROM CNTRL MS
   INTO CNTRL AL.  ALTHOUGH POTENTIAL FOR ADDITIONAL STORM DEVELOPMENT
   MAY TEMPORARILY BE DIMINISHED BY NOCTURNAL STABILIZATION...APPROACH
   OF 70 KT MID LVL SPEED MAX NOW IN OK SUGGESTS THAT AN ASSOCIATED
   INCREASE WILL OCCUR IN WSWLY LLJ OVER WW.  THIS IN TURN MAY LEAD TO
   AN INCREASE IN STORM COVERAGE LATER TONIGHT/EARLY SAT.  STRENGTH OF
   DEEP SHEAR AND SUSTAINED NATURE OF LOW LVL WAA MAY SUPPORT A FEW
   SUPERCELLS WITH HAIL...SMALL SCALE BOWING SEGMENTS WITH WIND...AND
   POSSIBLE TORNADOES.
   
   AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
   SURFACE AND ALOFT TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE
   WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
   450. MEAN STORM MOTION VECTOR 28030.
   
   
   ...CORFIDI
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Page last modified: February 28, 2009
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