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Mesoscale Discussion 223
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   MESOSCALE DISCUSSION 0223
   NWS STORM PREDICTION CENTER NORMAN OK
   0758 PM CDT TUE APR 07 2015

   AREAS AFFECTED...PORTIONS OF ERN KY

   CONCERNING...SEVERE THUNDERSTORM WATCH 29...

   VALID 080058Z - 080200Z

   THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 29
   CONTINUES.

   SUMMARY...THE SEVERE THREAT ACROSS WW 29 IS DECREASING. THE WATCH
   MAY BE ABLE TO BE CANCELED EARLY IF CURRENT RADAR TRENDS CONTINUE.

   DISCUSSION...AS THE LINE OF THUNDERSTORMS THAT PRODUCED PERIODIC
   BOUTS OF DAMAGING WINDS ACROSS CNTRL KY MOVES EWD INTO ERN KY...IT
   IS ENCOUNTERING AN INCREASINGLY HOSTILE THERMODYNAMIC ENVIRONMENT AS
   SFC TEMPERATURES COOL AND LOW-LEVEL MOISTURE BECOMES MORE LIMITED. A
   CORRESPONDING DECREASE IN REFLECTIVITY SIGNATURES AND ECHO TOPS FROM
   AREA RADARS CONFIRMS THIS WEAKENING TREND. A SUPERCELL THUNDERSTORM
   THAT HAD FORMED AHEAD OF THE LINE HAS BECOME ABSORBED INTO A LARGE
   AREA OF STRATIFORM RAIN...AND HAS RECENTLY LOST ITS SUPERCELL
   CHARACTERISTICS. A MARGINAL DAMAGING WIND THREAT PERSISTS ACROSS SRN
   PORTIONS OF WW 29 AS A SMALL BOW ECHO WITH EMBEDDED ROTATION MOVES
   EWD NEAR THE KY/TN BORDER. IF CURRENT RADAR TRENDS CONTINUE OVER THE
   NEXT HOUR...WW 29 MAY BE CANCELED EARLY.

   ..GLEASON.. 04/08/2015


   ATTN...WFO...JKL...

   LAT...LON   37568386 38018348 37958300 37828263 37328268 36778316
               36628369 36638455 37048453 37318413 37568386 

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Page last modified: April 08, 2015
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