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Mesoscale Discussion 1104
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   Mesoscale Discussion 1104
   NWS Storm Prediction Center Norman OK
   0815 PM CDT Tue Jun 20 2017

   Areas affected...Coastal areas of Mississippi...Alabama...and the
   Florida Panhandle

   Concerning...Severe potential...Watch unlikely 

   Valid 210115Z - 210345Z

   Probability of Watch Issuance...20 percent

   SUMMARY...An isolated tornado threat will evolve with isolated
   convection across the discussion area over the next couple of hours,
   with a more appreciable tornado threat potentially evolving

   DISCUSSION...Scattered banded and cellular convective structures
   have evolved in the northeastern quadrant of T.S. Cindy.  A couple
   of these storms have exhibited rotation near/north of Apalachicola,
   FL, while other storms offshore are exhibiting rotation and may
   threaten coastal areas from Mobile, AL eastward to Fort Walton, FL
   over the next couple of hours.  Low-level shear has gradually
   increased throughout the day in response to strengthening easterly
   low-level flow associated with Cindy.  Instability is negligible in
   most areas, but increases along and south of an east-west-oriented
   baroclinic zone from near Plaquemines Parish, LA eastward to near
   Tallahassee, FL.  As this zone shifts northward with time, the
   tornado threat will increase as rotating cells migrate inland from
   open waters.  The threat in the near term is too isolated to warrant
   a tornado watch issuance, although this area will be monitored into
   the overnight hours as instability increases across the region.

   ..Cook/Guyer.. 06/21/2017

   ...Please see for graphic product...


   LAT...LON   30788910 30928811 31028676 30848550 30528480 30168468
               29778467 29658488 29708533 29918571 30208675 30228740
               30208812 30288878 30428921 30578924 30788910 

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