943 ACUS11 KWNS 281646 SWOMCD SPC MCD 281646 FLZ000-281845- Mesoscale Discussion 0123 NWS Storm Prediction Center Norman OK 1046 AM CST Sat Feb 28 2026 Areas affected...portions of the central/southern Florida Peninsula Concerning...Severe potential...Watch possible Valid 281646Z - 281845Z Probability of Watch Issuance...40 percent SUMMARY...Thunderstorm activity will increase over the next couple of hours over eastern portions of the central/southern Florida Peninsula. Some of these storms could become strong to severe this afternoon, posing a risk for locally damaging wind gusts and isolated large hail. DISCUSSION...Convection is developing along a surface boundary/residual outflow oriented from Charlotte to St. Lucie counties. This activity is developing in a moist environment with dewpoints in the 69-73 F range. Temperatures have already warmed into the upper 70s/low 80s F at midday. With additional heating and increasing large-scale ascent overspreading the region this afternoon, convection will intensify and increase in coverage over the next couple of hours, both along the surface outflow and near the east coast sea breeze. MLCAPE values have already increased to around 1500-2000 J/kg and effective shear will support some updraft organization despite weak low-level flow. Midlevel lapse rates are forecast to remain poor, but given sufficient instability and shear, some stronger storms could produce hail to around 1.5 inches. Steepened low-level lapse rates and storm interactions also could support locally strong wind gusts. The best area for severe storms is somewhat limited spatially, near St. Lucie to Broward Counties, and the need for a watch is uncertain, though trends will be monitored over the next couple of hours. ..Leitman/Smith.. 02/28/2026 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...MFL...MLB...TBW... LAT...LON 27238166 27728144 27808110 27838032 27467984 26567967 25917973 25588008 25618042 25828067 27238166 MOST PROBABLE PEAK WIND GUST...UP TO 60 MPH MOST PROBABLE PEAK HAIL SIZE...1.00-1.75 IN