A lingering front, high moisture and daytime instability under a passing short-wave trough aloft produced locally heavy rainfall.
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Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS JAX wrote it up.
A lingering front, high moisture and daytime instability under a passing short-wave trough aloft produced locally heavy rainfall.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Jacksonville, FL wrote its last area forecast discussion before the first event at Aug 30, 12:25 PM EST, 2 hours 45 minutes earlier.
Area Forecast Discussion National Weather Service Jacksonville FL 125 PM EDT Sat Aug 30 2025 ...New AVIATION... .NEAR TERM... (Through Tonight) Issued at 1145 AM EDT Sat Aug 30 2025 For the latest NE FL and SE GA Daily Key Messages please visit: https://www.weather.gov/media/jax/briefings/nws-jax-briefing.pdf Stalled frontal boundary across NE FL, generally positioned along the I-10 corridor will not shift much through tonight and the deep moisture in place along with enough diurnal heating today will help to develop numerous to widespread showers and embedded thunderstorms with locally heavy rainfall, with the best chances along the frontal boundary across NE FL and in the convergent low level NE flow along the coastal SE GA counties. Details on the heavy rainfall threat is in the Hydrology section below. Otherwise this convection will peak during the late afternoon and evening hours over inland areas, then linger through the overnight hours over the Atlantic Coastal Waters and along the I-95 corridor, with the best chances through the overnight hours in the Brunswick metro area, where the low level NE convergence is greatest and will be monitored for potential Flood Watch in the next forecast package. Max temps will top out in the upper 70s/near 80F across SE GA and into the lower/middle 80s across NE FL this afternoon where more sunny breaks have occurred. Low temps tonight should still be able to fall into the upper 60s across inland SE GA, lower 70s for inland NE FL and middle 70s along the Atlantic Coastal areas. Some patchy fog possible over inland areas, but overall abundant cloud cover and continued low level N to NE winds around 5 mph or so, will lead to more of a lower stratus deck towards morning with widespread ceilings below 1000 ft over inland areas. && .SHORT TERM... (Sunday through Monday night) Issued at 1145 AM EDT Sat Aug 30 2025 High pressure will ridge down the east coast, as a frontal zone remains nearly stationary over central FL. The high will push the front a little further south Sunday night through Monday night. Drier air will advect south into SE GA, with the building ridge. As a result there will be a significant precipitation gradient from northwest to southeast across the area, with location of frontal boundary keeping chances pretty high across north central FL. The increasing pressure gradient, will result in a a surge of winds along the coast. The gustier winds will be most noticeable over SE GA coast Sunday, then all along the coast Monday. Temperatures will trend below normal this period. && .LONG TERM... (Tuesday through Friday) Issued at 1145 AM EDT Sat Aug 30 2025 The high pressure ridge will become centered more toward the northeast through Wednesday, allowing the frontal zone to lift back north across local area. As a result of frontal convergence, and greater moisture, daily precipitation chances will increase from south to north Tuesday into Wednesday. Frontal troughing will then extend across the area later in the week. Drier air will advect into the western counties on the northwest side of the front. Temperatures will slowly moderate this period, reaching near normal levels by the end of this period. && .AVIATION... (18Z TAFS) Issued at 116 PM EDT Sat Aug 30 2025 Diurnal heating across NE FL should lead to development of showers and embedded storms this afternoon and have included TEMPO groups for potential MVFR CIGS/VSBYS for TSRA at GNV/SGJ and SHRA at JAX/CRG/VQQ/SSI. Winds remain out of the NW to N in the 8-10 knot range with a few gusts to 15 knots at SSI, but overall any significant wind gusts will come with convection chances. Rainfall chances at NE FL TAF sites fade after sunset and have just placed generic MVFR CIGS and VCSH at most TAF sites from 02Z onward, while continuous rainfall and MVFR CIGS will continue at SSI through the night. Lower IFR stratus is still expected at the inland TAF sites of GNV/VQQ with some low chances of LIFR towards sunrise, but for now have kept around 800 feet. NE wind surge will push into SSI around 12Z with moderate showers and continued MVFR CIGS and VSBYS and N-NE winds increasing to 15G25 knots. The NE wind surge will reach the JAX metro TAF sites in the 14-15Z time frame with winds increasing to 10-14 knots and gusty with light shower activity expected as well with MVFR CIGS continuing. The wind surge makes it late in the TAF period to SGJ/GNV in the 15-16Z time frame along with MVFR CIGS. && .MARINE... Issued at 1145 AM EDT Sat Aug 30 2025 A stationary front will linger across the northeast Florida waters this weekend as strong high pressure over the Great Lakes begins to wedge down the southeastern seaboard, sending a surge of northeasterly winds and building seas across our local waters from north to south on Sunday and Small Craft Advisory headlines will be posted with the upcoming forecast package. Waves of showers and embedded thunderstorms will impact our local waters this weekend, with stronger storms capable of producing excessive lightning, strong winds, and waterspouts. Northeasterly winds will likely peak at Small Craft Advisory levels on Monday and will then gradually weaken by late Tuesday and Wednesday. Widespread showers and embedded thunderstorms will continue through midweek, with less coverage expected ahead of an approaching cold front later in the week. Prevailing winds will shift to offshore ahead of this approaching cold front, allowing seas to gradually subside. Rip Currents: High risk of rip currents still on track to develop on Sunday as the Northeast surge of winds pushes down the Atlantic beachfront locations with surf/breakers into the 2-4 ft range, with High risk continuing on Labor Day with surf/breakers of 3-5 ft. && .HYDROLOGY... Issued at 1145 AM EDT Sat Aug 30 2025 Will continue to monitor heavy rainfall potential along the I-95 corridor and Atlantic Coastal Counties through the entire Labor Day weekend and the possibility of Flood Watch issuance as still expecting 2-4 inch rainfall totals over the next 3 days in this corridor with locally higher amounts up to 6 inches possible. Lesser total rainfall amounts expected over inland areas, but with daytime heating, any of the isolated thunderstorm activity will still have heavy rainfall potential in localized convection, but the main threat will still be along the Atlantic Coastal areas where narrow convergent rain bands set up in the Northeast flow pattern that is upcoming with slow or little movement in some of these bands. This is similar to a situation which set up during September of last year (2024) which brought heavy downpours and localized flooding to the JAX metro area, but this weather pattern is not expected to last as long as it did last year, but will continue to monitor for potential Flood Watch. && .PRELIMINARY POINT TEMPS/POPS... AMG 67 83 66 83 / 20 40 10 20 SSI 74 83 73 83 / 40 70 40 50 JAX 72 85 71 83 / 40 80 40 70 SGJ 73 86 74 85 / 50 80 50 70 GNV 71 88 70 85 / 30 70 20 60 OCF 71 87 72 85 / 30 80 20 70 && .JAX WATCHES/WARNINGS/ADVISORIES... FL...None. GA...None. AM...None. &&
The national radar mosaic for the moment the first event began.
1 heavy rain. Local standard time, as filed.
A mesonet station TT687 Indian Lake Sf measured 2.97 inches of rain. Rain began around 410 PM.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Florida in 2025Every state in 2025This day in weather historyWarnings in Florida, August 2025
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 1287855.