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Mesoscale Discussion 1702
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   MESOSCALE DISCUSSION 1702
   NWS STORM PREDICTION CENTER NORMAN OK
   0936 PM CDT MON AUG 17 2015

   AREAS AFFECTED...EXTREME SOUTHEAST CO

   CONCERNING...TORNADO WATCH 490...

   VALID 180236Z - 180400Z

   THE SEVERE WEATHER THREAT FOR TORNADO WATCH 490 CONTINUES.

   SUMMARY...STRONG/DAMAGING WINDS AND HAIL REMAIN A SEVERE WEATHER
   THREAT ACROSS EXTREME SOUTHEAST CO THROUGH 03-0330Z...WITH THE
   SEVERE THREAT BECOMING QUITE LOW AFTER 0330Z AS STORMS MOVE
   SOUTHEAST AWAY FROM CO.

   DISCUSSION...AT 0225Z...MOSAIC RADAR IMAGERY SHOWED A LINE OF STRONG
   TO SEVERE STORMS ADVANCING TO THE SOUTHEAST AROUND 30 KT ACROSS
   EXTREME SOUTHEAST CO.  EMBEDDED BOWING STRUCTURES WITHIN THIS LINE
   WILL CONTINUE TO POSE A THREAT FOR STRONG/SEVERE WIND GUSTS AS WAS
   OBSERVED AT LAMAR CO AT 0144Z WITH A GUST OF 60 KT.  EFFECTIVE BULK
   SHEAR AROUND 40 KT AND RESIDUAL MODERATE INSTABILITY WILL CONTINUE
   TO PROVIDE A FAVORABLE ENVIRONMENT FOR THESE STORMS TO PROGRESS TO
   THE SOUTHEAST WITH A SEVERE WEATHER THREAT.  DCAPE OF 1000-1200 J/KG
   EXTENDING FROM THE CO LINE OF STORMS INTO SOUTHWEST KS SUGGESTS THE
   BOUNDARY LAYER IS SUPPORTIVE FOR ENHANCED WIND GUSTS.

   ..PETERS.. 08/18/2015


   ATTN...WFO...DDC...GLD...PUB...

   LAT...LON   37020311 38020259 38620206 37910197 36990201 37020311 

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Page last modified: August 18, 2015
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