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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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