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Mesoscale Discussion 2113
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   MESOSCALE DISCUSSION 2113
   NWS STORM PREDICTION CENTER NORMAN OK
   0715 PM CDT THU OCT 15 2009
   
   AREAS AFFECTED...SRN GA
   
   CONCERNING...SEVERE POTENTIAL...WATCH UNLIKELY 
   
   VALID 160015Z - 160145Z
   
   THE THREAT FOR ISOLATED SEVERE STORMS CAPABLE OF LOCALLY STRONG WIND
   GUSTS AND PERHAPS A BRIEF TORNADO IS EXPECTED TO CONTINUE ACROSS
   PARTS OF SRN GA TONIGHT.  A WW IS NOT ANTICIPATED.
   
   A CLUSTER OF TSTMS WHICH INITIATED EARLIER TODAY OVER NRN/CNTRL AL
   HAS BEEN MAINTAINED...EXTENDING FROM CRISP TO RANDOLPH COUNTIES IN
   SRN GA AS OF 00Z.  SYSTEM MOVEMENT WAS 295/25 KT.  A FAIRLY
   PERSISTENT SUPERCELL STRUCTURE HAS BEEN MAINTAINED WITHIN EVOLVING
   QLCS...GENERALLY PROPAGATING SEWD WITHIN TRAILING LINE SEGMENT.  00Z
   JAX SOUNDING APPEARS REPRESENTATIVE OF AMBIENT THERMODYNAMIC
   CONDITIONS...FEATURING A VERY MOIST LOWER TO MID TROPOSPHERE WITH PW
   VALUES AROUND 2.3 INCHES AND MLCAPE OF 2000-2500 J/KG.  AREA VWPS
   SUGGEST THAT KINEMATIC ENVIRONMENT REMAINS SUPPORTIVE OF
   ORGANIZED/ROTATING STORMS GIVEN 40-50 KT OF DEEP-LAYER SHEAR.  0-1
   KM BULK SHEAR IS SOMEWHAT WEAKER /20-25 KT/...BUT GIVEN THE
   MOIST/LOW LCL AIR MASS...SOME POTENTIAL WILL EXIST FOR A BRIEF
   TORNADO IN ADDITION TO LOCALLY DAMAGING WIND GUSTS.  
   
   THE GENERALLY WEAK LAPSE RATES AND ABSENCE OF STRONGER LOW-LEVEL
   SHEAR WILL LIKELY PRECLUDE ANY MORE ORGANIZED WIND/TORNADO
   POTENTIAL.
   
   ..MEAD.. 10/16/2009
   
   
   ATTN...WFO...CHS...JAX...FFC...TAE...
   
   LAT...LON   31428466 32088428 32308270 32128161 31568127 30938169
               30888339 31428466 
   
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Page last modified: October 16, 2009
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