US Mesoscale Discussions

Storm Prediction Center Mesoscale Discussion 275

Published Date and Time: 2026-03-16 14:02:00



   Mesoscale Discussion 0275
   NWS Storm Prediction Center Norman OK
   1258 PM CDT Mon Mar 16 2026

   Areas affected...portions of southern and central Florida

   Concerning...Severe potential...Watch unlikely 

   Valid 161758Z - 161900Z

   Probability of Watch Issuance...20 percent

   SUMMARY...Scattered thunderstorms have developed, and will likely
   increase in coverage over parts of southern and central FL this
   afternoon. The severe risk with this initial round is uncertain,
   though sufficient buoyancy exist for isolated damaging gusts and
   hail.

   DISCUSSION...As of 1745 UTC, regional radar and satellite
   observations showed intensifying thunderstorms along a pre-frontal
   confluence axis across central FL, and along the sea breeze front in
   the eastern peninsula. Ahead of the QLCS associated with the
   upstream cold front, these storms have begun to mature, within a
   warm and unstable air mass (2000-2500 J/kg MLCAPE). Strong updrafts
   are present and likely to continue. However, vertical shear is
   modest currently, with much of central and southern FL displaced
   from the stronger mid-level flow to the northwest. Thus, these
   initial storms have shown little in the way of organization so far.
   Isolated hail will be possible given the degree of buoyancy.
   Isolated damaging gusts are also possible, especially with storms
   that cluster and can develop stronger cold pools.

   The QLCS upstream will likely continue across the eastern Gulf and
   move onto the peninsula later this afternoon into the evening. Some
   severe potential may persist with that. However, as large-scale
   ascent shifts away to the north, the QLCS may weaken overnight.
   Thus, some severe potential is apparent this afternoon, and later
   this evening, but confidence in either scenario necessitating a
   watch is low. Conditions will continue to be monitored.

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

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

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

   LAT...LON   25398088 27248218 28658189 28998154 29228125 29068083
               28488047 27918035 27448016 26778000 26268001 25858003
               25308019 25148036 25398088 

   MOST PROBABLE PEAK TORNADO INTENSITY...UP TO 95 MPH
   MOST PROBABLE PEAK WIND GUST...55-70 MPH
   MOST PROBABLE PEAK HAIL SIZE...1.00-1.75 IN



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