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Mesoscale Discussion 20
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   MESOSCALE DISCUSSION 0020
   NWS STORM PREDICTION CENTER NORMAN OK
   0320 PM CST FRI JAN 05 2007
   
   AREAS AFFECTED...NC PIEDMONT/SANDHILLS AND PART OF NERN SC
   
   CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE 
   
   VALID 052120Z - 052245Z
   
   NARROW ARC OF LOW-TOPPED STRONG/SEVERE CONVECTION CONTINUES MOVING
   ENEWD ACROSS UPSTATE SC AND WILL CONTINUE TO MOVE INTO SRN PIEDMONT
   AREA OF NC OVER THE NEXT HOUR. LATEST TRENDS SUGGEST THAT
   REFLECTIVITY WITHIN THE LINE HAS WEAKENED. HOWEVER...LARGE SCALE
   FORCING WILL CONTINUE TO SUPPORT STRONG ASCENT ACROSS NC THROUGH
   TONIGHT AND ANOTHER DOWNSTREAM WATCH MAY BE NEEDED.
   
   DESPITE INTENSITY TRENDS...FORCING ASSOCIATED WITH EXIT REGION OF
   50-60KT MID LEVEL JET STREAK WILL CONTINUE TO SPREAD ATOP MOIST AND
   WEAKLY UNSTABLE AIR MASS ACROSS CNTRL NC AND NERN SC THROUGH THIS
   EVENING. CURRENT ACTIVITY MOVING INTO CLT AREA IN THE NEXT HALF HOUR
   WILL BE MONITORED CLOSELY FOR DAMAGING WINDS GIVEN AIR MASS AND LOW
   LEVEL SHEAR ACROSS THE AREA. GIVEN LATEST TRENDS AND TIME OF
   DAY...THE OVERALL SEVERE POTENTIAL MAY BE DIMINISHING. HOWEVER...IF
   ONGOING CONVECTION REMAINS STRONG TO NEAR SEVERE...A NEW WATCH MAY
   BE NEEDED DOWNSTREAM ACROSS PARTS OF CNTRL NC IN THE NEXT HOUR.
   
   ..CARBIN.. 01/05/2007
   
   
   ATTN...WFO...RAH...ILM...RNK...CAE...GSP...
   
   35548154 35628135 36278058 36437960 35867891 35057915
   34407943 34407983 34667981 35448047 
   
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