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Mesoscale Discussion 268
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   MESOSCALE DISCUSSION 0268
   NWS STORM PREDICTION CENTER NORMAN OK
   0125 AM CDT THU MAR 26 2009
   
   AREAS AFFECTED...SE LA...SE MS THROUGH SW AND CNTRL AL
   
   CONCERNING...SEVERE POTENTIAL...WATCH NEEDED SOON 
   
   VALID 260625Z - 260700Z
   
   LINE OF STRONG TO SEVERE STORMS WILL CONTINUE EAST AND APPROACH THE
   ERN EDGE OF WW 66 BY 0730-08Z. NEW WW WILL BE ISSUED SOON FOR SE LA
   AND SE MS INTO SW AND CNTRL AL.
   
   LINE OF STRONG TO SEVERE STORMS EXTENDING FROM N CNTRL MS THROUGH S
   CNTRL LA IS MOVING EAST AT 35-40 KT. A WARM FRONT EXTENDS FROM N
   CNTRL MS SEWD THROUGH SRN AL INTO THE FL PANHANDLE. SOUTH OF THIS
   BOUNDARY...DEWPOINTS ARE IN THE LOW TO MID 60S...EXCEPT UPPER 60S 
   OVER THE NWRN GULF COAST. SWLY LOW LEVEL JET IS EXPECTED TO
   INTENSIFY TO 60+ KT AND SHIFT NEWD THROUGH AL IN ASSOCIATION WITH
   EJECTING SHORTWAVE TROUGH. INSTABILITY IS MORE MARGINAL WITH EWD
   EXTENT INTO AL. HOWEVER...MOIST ADVECTION ASSOCIATED WITH THE LOW
   LEVEL JET MAY CONTRIBUTE TO SOME NWD RECOVERY OF THE WARM SECTOR
   WITH TIME. THE LINE IS EMBEDDED WITHIN STRONG SHEAR PROFILES WITH
   LARGE LOW LEVEL HODOGRAPHS SUPPORTIVE OF BOWING STRUCTURES AND
   SUPERCELLS.
   
   ..DIAL.. 03/26/2009
   
   
   ATTN...WFO...BMX...MOB...JAN...LIX...
   
   LAT...LON   33148587 31168689 29428952 29509083 31668873 33428804
               33148587 
   
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Page last modified: March 26, 2009
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