785 FXUS62 KMFL 071141 AFDMFLArea Forecast Discussion National Weather Service Miami FL 741 AM EDT Sun Sep 7 2025
...New AVIATION...
.SHORT TERM... (Today through Monday) Issued at 359 AM EDT Sun Sep 7 2025
Sfc analyses and model data shows the remnants of a former front lingering over S Florida, while a long stationary frontal boundary stretches from S TX through N FL and the Carolinas, with an attendant Low lingering around the GA/FL state line. Meanwhile, a short wave over the E Gulf may contribute additional instability across the area today, which combined with the relatively weak S/SW flow at the sfc, should bring the highest chances of showers and thunderstorms over the eastern half of SoFlo this afternoon.
Abundant moisture remains trapped south of the aforementioned boundaries, with PWATs from MFL upper air and model soundings keeping 2.1-2.5" in place for the next several days. Therefore, POps will remain high each day, mainly in the 75 to 85 percent range. Expect sea breeze boundaries to again drive the deepest convection, with the Gulf breeze initiating thunderstorm activity early in the afternoon over the Gulf coast and shifting into east coast areas for the late/early evening hours. Latest high-res solutions suggest isolated 3" or higher possible, for which WPC latest outlook keeps all of SoFlo under a marginal risk of excessive rainfall (level 1 of 4). It also mentions the potential for isolated risk of flash flooding favoring the eastern half of SoFlo, especially with slow- moving or stationary thunderstorms over urban areas.
Despite the widespread cloud cover expected for the afternoon hours, daytime heating during the morning hours should be enough to again drive max temps into the upper 80s over northern areas, and low- mid 90s elsewhere.
Very similar weather pattern continues on Monday, as the remnant boundary over C FL dissipates and, and high pressure establishing over the E CONUS pushes the second front pushes further south and into C FL. This will keep the abundant moisture in place as the daytime heating/sea breeze cycle repeats.
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.LONG TERM... (Monday night through Saturday) Issued at 359 AM EDT Sun Sep 7 2025
Model guidance keeps a lingering front around C FL through at least Thursday, with above normal moisture remaining in place across the area. Ensemble guidance also suggest a potential low developing mainly around the northern portions of the peninsula, although uncertainty still remains regarding the details of this feature.
Nevertheless, the overall wet pattern continues through much of the long term, but with the risk for flooding decreasing each day as model PWATs show values dropping to near normals by Wed. Still, numerous showers and thunderstorms are expected to return each afternoon with highest POPs remaining in the 70-75 percent range. Sea breezes will again be the main drivers of deeper convection during the afternoon hours, but outflow boundary collisions will play a significant role on storm initiation
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.AVIATION... (12Z TAFS) Issued at 740 AM EDT Sun Sep 7 2025
Light southerly flow will continue this morning before both sea- breezes enhance during the late morning into early afternoon hours. SCT SHRA/TSRA is forecast to develop once again after 16z, with sub-MVFR cigs/vis and erratic wind shifts possible at impacted terminals.Short fused amendments and TEMPOs may be needed if confidence in coverage increases. L/V winds forecast once again overnight.
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.MARINE... Issued at 359 AM EDT Sun Sep 7 2025
A light to moderate souths-southwesterly wind continues remain in place across most of the local waters during the next couple of days, becoming generally light and variable by mid week. Scattered to numerous showers and thunderstorms will be possible each day through the forecast period with rough seas and gusty winds briefly accompanying thunderstorms.
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.PRELIMINARY POINT TEMPS/POPS... Miami 90 77 90 76 / 80 60 80 50 West Kendall 90 76 90 76 / 80 60 80 50 Opa-Locka 91 77 91 76 / 80 60 80 50 Homestead 90 76 89 76 / 80 60 70 50 Fort Lauderdale 90 77 90 76 / 80 70 80 60 N Ft Lauderdale 92 77 91 76 / 90 70 80 60 Pembroke Pines 93 77 92 76 / 80 60 80 50 West Palm Beach 91 75 90 75 / 90 70 80 60 Boca Raton 92 75 91 75 / 90 70 80 60 Naples 90 77 90 76 / 80 50 80 50
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.MFL WATCHES/WARNINGS/ADVISORIES... FL...None. AM...None. GM...None. &&
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SHORT TERM...17 LONG TERM....17 AVIATION...Hadi
NWS MFL Office Area Forecast Discussion