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Mesoscale Discussion 1409
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   MESOSCALE DISCUSSION 1409
   NWS STORM PREDICTION CENTER NORMAN OK
   0535 AM CDT TUE JUL 14 2015

   AREAS AFFECTED...SERN KY...NERN TN

   CONCERNING...SEVERE THUNDERSTORM WATCH 420...

   VALID 141035Z - 141130Z

   THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 420
   CONTINUES.

   SUMMARY...STRONG TO ISOLATED SEVERE WIND GUSTS MAY PERSIST FOR A FEW
   MORE HOURS DOWNSTREAM OF WW 420 WITH WW ISSUANCE POSSIBLE INTO PARTS
   OF TN BY 1130Z.

   DISCUSSION...ACCELERATING BOW ECHO HAS NOW REACHED 55-KT FORWARD
   MOVEMENT TO THE SE ACROSS ERN KY. THIS BOW PRODUCED A MEASURED GUST
   TO 47-KT AT KDVK AT 0956Z. 5-9 KM CAPPI REFLECTIVITY TRENDS SUGGEST
   THIS BOW IS PAST PEAK AS IT INCREASINGLY PROGRESSES ACROSS A
   COOLER/MORE STABLE AIR MASS IN THE WAKE OF A LEAD TSTM CLUSTER OVER
   THE SRN APPALACHIANS. BUT GIVEN THE ORGANIZED NATURE OF THE
   BOW...POTENTIALLY ENHANCED BY LOW-LEVEL SRH ALONG THE COOL SIDE OF
   OUTFLOW BOUNDARY...STRONG TO SEVERE WIND GUSTS MAY CONTINUE FOR A
   FEW MORE HOURS UNTIL PROBABLE FURTHER DEMISE.

   ..GRAMS.. 07/14/2015


   ATTN...WFO...MRX...JKL...LMK...

   LAT...LON   37468397 37048337 36738324 36188317 35898342 35808377
               35808404 36228449 36538470 36978493 37138500 37138442
               37468397 

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Page last modified: July 14, 2015
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