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Mesoscale Discussion 875
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   MESOSCALE DISCUSSION 0875
   NWS STORM PREDICTION CENTER NORMAN OK
   0942 PM CDT SAT MAY 10 2008
   
   AREAS AFFECTED...SCNTRL MO...CNTRL/SRN AR
   
   CONCERNING...TORNADO WATCH 299...
   
   VALID 110242Z - 110415Z
   
   THE SEVERE WEATHER THREAT FOR TORNADO WATCH 299 CONTINUES.
   
   STRONGEST SUPERCELL TSTMS HAVE SHIFTED INTO EXTREME SRN PARTS OF THE
   WW AND WILL IMPACT EL DORADO AR BY 0330Z WITH PRIMARILY LARGE HAIL
   AND DMGG WIND GUSTS.  THIS ACTIVITY MAY MOVE INTO NCNTRL LA BY 04Z. 
   
   
   THE PRIMARY LLJ AXIS IS BEGINNING TO SHIFT EWD INTO THE TN VLY THIS
   EVENING AS THE UPR TROUGH CONTINUES TO SWING INTO THE MID-MS VLY. 
   THUS...HIGHEST SVR THREATS WILL LIKELY BE CONFINED TO AREAS E OF THE
   WW INTO NRN MS/TN AND AL THE REMAINDER OF THE NIGHT.
   
   WITHIN THE WW...A FEW STRONG STORMS HAVE BEEN OCCURRING ALONG THE
   LEADING EDGE OF STRONGER COOLING ALOFT ACROSS NCNTRL/NERN AR.  THESE
   STORMS MAY GIVE LARGE HAIL AND PERHAPS GUSTY WINDS...BUT IT APPEARS
   THE SVR THREAT MAY BE DIMINISHING OVER A LARGE PART OF THE CNTRL/WRN
   PARTS OF TORNADO WATCH 299.
   
   ..RACY.. 05/11/2008
   
   
   ATTN...WFO...PAH...MEG...JAN...LZK...SGF...
   
   33399055 33899268 35349315 36949277 37429195 36939119
   35949097 34729149 33879101 33439081 
   
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