Mesoscale Discussion 2111
   NWS Storm Prediction Center Norman OK
   0807 AM CDT Thu Sep 26 2024

   Areas affected...Southern and Central Florida Peninsula

   Concerning...Tornado Watch 683...

   Valid 261307Z - 261500Z

   The severe weather threat for Tornado Watch 683 continues.

   SUMMARY...A tornado threat will continue across the Florida
   Peninsula this morning, persisting into the early afternoon.

   DISCUSSION...Hurricane Helene is currently located in the eastern
   Gulf of Mexico. Several rainbands, with embedded thunderstorms, are
   located across the eastern Gulf of Mexico extending across the
   Florida Peninsula. The latest RAP has a pocket of moderate
   instability across the southern and central Florida Peninsula, with
   MLCAPE estimated in the 1000 to 2000 J/kg range. This is consistent
   with the Miami, Florida 12Z sounding, which also has 0-6 km shear in
   the 30 to 35 knot range, and 0-3 km storm-relative helicity around
   300 m2/s2. This environment will continue to be favorable for
   tornadoes with semi-discrete supercells embedded in the outer
   rainbands of Hurricane Helene. The tornado threat should continue
   this morning and into the early afternoon as Hurricane Helene moves
   northward across the eastern Gulf of Mexico.

   ..Broyles.. 09/26/2024

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

   ATTN...WFO...MFL...MLB...KEY...TBW...

   LAT...LON   27828021 28368038 28628057 28808105 28838160 28648211
               28138236 27308239 26288209 25578157 25188105 25128074
               25248039 25598009 26467994 27828021