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Mesoscale Discussion 1948
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   MESOSCALE DISCUSSION 1948
   NWS STORM PREDICTION CENTER NORMAN OK
   0837 PM CST SUN NOV 23 2014

   AREAS AFFECTED...COASTAL SC...EXTREME SRN NC

   CONCERNING...TORNADO WATCH 559...

   VALID 240237Z - 240330Z

   THE SEVERE WEATHER THREAT FOR TORNADO WATCH 559 CONTINUES.

   SUMMARY...LOCALIZED DAMAGING WIND AND BRIEF TORNADO RISKS MAY
   PERSIST FOR A COUPLE MORE HOURS. BUT OVERALL THREAT APPEARS LIKELY
   TO DIMINISH AND AN ADDITIONAL WW ISSUANCE IS UNLIKELY.

   DISCUSSION...CONSOLIDATION OF UPDRAFTS HAS YIELDED A SHORT-LINE
   SEGMENT FROM FLORENCE TO BEAUFORT COUNTY. 45-50 KT EWD MOVEMENT WILL
   EFFECTIVELY OCCLUDE THE REMAINING ONSHORE WARM SECTOR THAT IS
   CHARACTERIZED BY UPPER 60S SURFACE DEW POINTS S OF MYRTLE BEACH BY
   ABOUT MIDNIGHT. MODIFIED 00Z CHS/MHX RAOBS SUGGEST DEW POINTS THAT
   HIGH ARE NECESSARY FOR EVEN MEAGER SURFACE-BASED BUOYANCY. AS
   SUCH...THE WIND/TORNADO RISK SHOULD BECOME PROGRESSIVELY WEAKER AS
   CONVECTION SPREADS E OF WW 559...DESPITE VERY STRONG LOW-LEVEL
   SHEAR.

   ..GRAMS/HART.. 11/24/2014


   ATTN...WFO...ILM...CHS...

   LAT...LON   33627990 34007958 34257912 34247877 34127836 33867838
               32997926 31948054 31988076 32658060 33248026 33627990 

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Page last modified: November 24, 2014
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