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Mesoscale Discussion 154
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   Mesoscale Discussion 0154
   NWS Storm Prediction Center Norman OK
   0524 PM CST Tue Feb 07 2017

   Areas affected...Portions of southern GA and the FL Panhandle

   Concerning...Severe Thunderstorm Watch 28...29...

   Valid 072324Z - 080100Z

   The severe weather threat for Severe Thunderstorm Watch 28, 29

   SUMMARY...A squall line will continue tracking eastward across
   portions of southern GA and the FL Panhandle. Damaging winds --
   potentially widespread -- may accompany this activity, along with a
   tornado or two.

   DISCUSSION...A well organized squall line with embedded bowing
   segments is advancing eastward around 45-50 kt. A large/broad area
   of strong rear-inflow winds has been indicated by TLH radar base
   velocities. Ample vertical shear sampled by the TLH VAD wind profile
   (around 55-65 kt of 0-6-km bulk shear), amidst around 500-1000 J/kg
   of MLCAPE, will likely maintain a risk for damaging wind gusts as
   this activity spreads eastward -- including the Tallahassee area in
   the 2330-0000Z time frame. Line-embedded circulations may support
   areas of enhanced wind damage, and perhaps a tornado or two could
   occur given notable low-level directional/speed shear. The severe
   risk will decrease behind this line.

   ..Cohen.. 02/07/2017


   LAT...LON   30318537 31168481 31678381 31538328 29888337 29708393
               29788520 30318537 

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