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Mesoscale Discussion 539
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   MESOSCALE DISCUSSION 0539
   NWS STORM PREDICTION CENTER NORMAN OK
   0348 PM CDT FRI APR 19 2013
   
   AREAS AFFECTED...CENTRAL AND EASTERN NORTH CAROLINA AND FAR NORTHERN
   AND NORTHEASTERN SOUTH CAROLINA
   
   CONCERNING...TORNADO WATCH 130...
   
   VALID 192048Z - 192145Z
   
   THE SEVERE WEATHER THREAT FOR TORNADO WATCH 130 CONTINUES.
   
   SUMMARY...THUNDERSTORMS CONTINUE TO DEVELOP/INTENSIFY ALONG AND
   AHEAD OF AN EWD MOVING COLD FRONT WHICH AT 20 UTC WAS LOCATED FROM
   NEAR INT SWWD TO NEAR AKH TO NEAR GRD. AHEAD OF THIS LINE SVR
   POTENTIAL WILL PERSIST INTO THE EARLY EVENING...WITH DAMAGING WINDS
   AND TORNADOES POSSIBLE.
   
   DISCUSSION...AT 20 UTC...THUNDERSTORMS CONTINUE TO DEVELOP/INTENSIFY
   AHEAD OF AN EWD ADVANCING COLD FRONT ACROSS CNTRL NORTH CAROLINA AND
   NORTHERN SOUTH CAROLINA. THESE STORMS ARE LOCATED IN AN ENVIRONMENT
   THAT CONTINUES TO BE SUPPORTIVE OF SEVERE THUNDERSTORMS WITH MUCAPE
   VALUES AROUND 1000 J/KG AND DEEP LAYER SHEAR ON THE ORDER OF 45 KTS.
   THESE DISCRETE STORMS WILL BE CAPABLE OF PRODUCING DAMAGING WINDS
   AND TORNADOES. AS THE COLD FRONT BEGINS TO OVERTAKE THE MORE
   DISCRETE CELLS AHEAD OF IT...A TRANSITION TO LINEAR CONVECTIVE MODE
   IS ANTICIPATED WITH DAMAGING WINDS AND QLCS/BOW ECHO TORNADOES
   REMAINING POSSIBLE. AN ADDITIONAL WW MAY BE REQUIRED DOWNSTREAM OF
   WW130.
   
   ..MARSH.. 04/19/2013
   
   
   ATTN...WFO...AKQ...MHX...RAH...ILM...RNK...CHS...CAE...GSP...
   
   LAT...LON   34168162 35168115 36487974 36547908 36567584 35447593
               34497725 33177923 33518001 33977990 34208075 34168162 
   
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Page last modified: April 19, 2013
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