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Mesoscale Discussion 1204
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   MESOSCALE DISCUSSION 1204
   NWS STORM PREDICTION CENTER NORMAN OK
   0705 PM CDT FRI JUN 26 2015

   AREAS AFFECTED...WV...ERN KY...WRN VA

   CONCERNING...SEVERE THUNDERSTORM WATCH 363...

   VALID 270005Z - 270130Z

   THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 363
   CONTINUES.

   SUMMARY...THREE AREAS OF PRIMARY SEVERE STORM CONCERN REMAIN EVIDENT
   WITHIN/NEAR WW 363. THE AREA DOWNSTREAM OF A WEAKENING SUPERCELL
   OVER NRN WV IS BEING MONITORED FOR POSSIBLE WFO EXTENSION.

   DISCUSSION...LOW-LEVEL MESOCYCLONE HAS SUBSTANTIALLY WEAKENED IN THE
   PAST HALF HOUR WITH A LONG-TRACK SUPERCELL NOW CENTERED OVER ROANE
   COUNTY WV EVOLVING INTO MORE OF A STORM-SCALE BOW. DOWNSTREAM AIR
   MASS IS RELATIVELY COOL WELL N OF THE SURFACE COLD FRONT ACROSS SRN
   NC. WHILE A RISK FOR DAMAGING WINDS SHOULD EVOLVE E/SEWD DURING THE
   NEXT COUPLE OF HOURS...THE OVERALL THREAT MAY DIMINISH AFTER ABOUT
   02Z AS NOCTURNAL SURFACE STABILIZATION INCREASES.

   UPSTREAM...A CLUSTER NEAR THE OH RIVER IN SWRN OH/NERN KY MAY
   CONTINUE EWD ALONG THE REMNANT OUTFLOW IN THE WAKE OF THE LEAD WV
   STORM. THIS ACTIVITY SHOULD HAVE A STRONGER PUSH OF MID-LEVEL WLYS
   IN CLOSER PROXIMITY TO THE IL SHORTWAVE TROUGH WHICH MAY SUSTAIN A
   LOCALIZED DAMAGING WIND RISK DESPITE MARGINAL LAPSE RATES.

   FARTHER S...CLUSTERS ALONG THE KY/TN BORDER AREA MAY YET DEVELOP
   INTO A LOCALIZED DAMAGING WIND RISK ALONG THE SRN PERIPHERY OF WW
   363.

   ..GRAMS.. 06/27/2015


   ATTN...WFO...LWX...RNK...RLX...MRX...JKL...ILN...LMK...

   LAT...LON   39008335 38538381 38158396 37268421 36818454 36728432
               36638392 36638249 36608212 37018206 37778259 38018237
               38068166 37948072 37897969 38177943 38447946 38737990
               39088091 39198206 39008335 

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Page last modified: June 27, 2015
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