Mesoscale Discussion 0479
   NWS Storm Prediction Center Norman OK
   1200 PM CDT Sun Apr 26 2020

   Areas affected...South FL

   Concerning...Severe potential...Watch unlikely 

   Valid 261700Z - 261830Z

   Probability of Watch Issuance...5 percent

   SUMMARY...Scattered thunderstorms will persist across south Florida
   through the afternoon, with isolated large hail and strong downburst
   winds possible.

   DISCUSSION...Multiple storm clusters have developed along a
   pre-frontal boundary near Lake Okeechobee.  Along and south of this
   ongoing convection, strong buoyancy is present in a moist low-level
   environment (mid 70s dewpoints and PW approaching 2 inches), with
   surface temperatures in the mid-upper 80s.  There is enough vertical
   shear for organized multicell clusters with both strong updrafts
   given the buoyancy, and strong downdrafts based on some dry air
   aloft and DCAPE in excess of 1000 J/kg.  The threat for isolated
   large hail and downbursts will shift southeastward with the
   convection through the afternoon, though it is not quite as warm
   across far south/southeast FL as a result of anvil blowoff from
   ongoing and prior convection.

   ..Thompson.. 04/26/2020

   ...Please see www.spc.noaa.gov for graphic product...

   ATTN...WFO...MFL...

   LAT...LON   25608010 25568116 26068160 26428112 26668032 26687991
               26417981 25957998 25608010