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Storm Prediction Center Mesoscale Discussion 274

Published Date and Time: 2026-03-16 13:01:00



Mesoscale Discussion 274
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   Mesoscale Discussion 0274
   NWS Storm Prediction Center Norman OK
   1149 AM CDT Mon Mar 16 2026

   Areas affected...portions of northern Florida...southeast Georgia
   into coastal South Carolina.

   Concerning...Tornado Watch 65...

   Valid 161649Z - 161815Z

   The severe weather threat for Tornado Watch 65 continues.

   SUMMARY...Ongoing convection will continue eastward with severe
   potential. WW65 is set to expire at 18z. A local extension or a
   small watch downstream may be needed given the expected ongoing
   threat for damaging gusts and tornadoes.

   DISCUSSION...As of 1645 UTC, multiple bands of convection are
   ongoing over parts of the northern Gulf Coast from northern FL into
   southern GA and southern SC. A large stratiform rain shield with
   multiple embedded convective elements will spread eastward,
   effectively limiting northward expansion of a destabilizing air mass
   to the south. Strong kinematics in place may still support some
   damaging gust and brief tornado threat with embedded convection,
   despite weak buoyancy.

   However, the primary severe risk appears to be focused on stronger
   portions of the line over the eastern FL Panhandle, and possibly
   with new development over western portions of the JAX CWA. The
   environment remains favorable for damaging gusts and tornadoes with
   1500-2000 J/kg of MLCAPE and 40-50 kt of effective shear. Given
   this, a local extension of WW65, or a new smaller downstream watch
   are being considered to cover the expected severe risk.

   ..Lyons/Thompson.. 03/16/2026

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

   ATTN...WFO...CHS...MLB...TBW...JAX...FFC...TAE...

   LAT...LON   29258095 29088117 29018146 29038231 29148291 29998391
               30878348 32158239 32798131 32858052 32818024 32708008
               32588007 32298051 31918086 31268126 30428137 29568103
               29258095 

   MOST PROBABLE PEAK TORNADO INTENSITY...100-130 MPH
   MOST PROBABLE PEAK WIND GUST...55-70 MPH
   MOST PROBABLE PEAK HAIL SIZE...UP TO 1.25 IN


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