


Area Forecast Discussion
Issued by NWS
Issued by NWS
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236 FXUS62 KTAE 042350 AFDTAE Area Forecast Discussion National Weather Service Tallahassee FL 750 PM EDT Sat Oct 4 2025 ...New UPDATE, AVIATION... .UPDATE... Issued at 745 PM EDT Sat Oct 4 2025 The previous forecast appears to be on track, and no major changes were necessary. && .NEAR TERM... (Through Sunday) Issued at 103 PM EDT Sat Oct 4 2025 Late afternoon visible satellite indicates numerous cumulus developing with some embedded showers moving westward into the Suwanee Valley within continued low-level easterly flow. Latest mesoanalysis indicates PWATs increasing to 1.5 inches toward the I-75 corridor of GA and also some weak instability. Forecast reflects this with up to 25% chance of showers into this evening. Cannot rule out an isolated thunderstorm mainly in the FL Big Bend, but forcing for deeper convection is lacking. On Sunday, a cutoff low near the lower MS Valley with a surface trough reflection over the Gulf leads to an overrunning regime as high pressure remains to the lee of the Appalachians. This should focus the heaviest rainfall offshore off the Emerald Coast. But the guidance also indicates an inverted surface trough developing from Southeast AL into the FL Big Bend, which provides another source of lift, within an environment characterized by PWAT near 2.0 inches, which is above the 90th percentile. PoPs were increased within this corridor to above 50% where some brief heavy downpours are possible. To keep this in perspective, a reasonable worst case scenario (1 in 10 chance of being exceeded) is for rainfall up to 1-1.5 inches. East-Northeast winds remain gusty around 20 to 25 mph through the period, with lows in the mid-60s and highs in the mid-80s, which is close to normal. The Rip Current Risk is forecast to remain High along the Franklin and Walton County beaches. && .SHORT TERM... (Sunday night through Tuesday) Issued at 103 PM EDT Sat Oct 4 2025 The cutoff low near the lower MS Valley gradually lifts north into the westerlies and fills, with a tendency for more ridging aloft by Tuesday, while high pressure remains to the lee of the Appalachians. PWATs remain near 2.0 inches on Monday then begin to decrease on Tuesday. In particular on Monday, there should be sufficient lift for showers and instability for some thunder as well, with highest PoPs around 50% in the FL Counties. PoPs decrease to around 20-30% on Tuesday as ridging builds aloft. Daily average temperatures slightly above normal on Monday and Tuesday with gusty Easterly winds continuing. The high risk of rip currents will likely linger into at least early next week along the Franklin and Walton County beaches. && .LONG TERM... (Tuesday night through Friday) Issued at 103 PM EDT Sat Oct 4 2025 Ridging aloft begins to breakdown by Thursday as a mid-level trough and its associated cold front approaches. Meanwhile, surface ridging remains to the lee of the Appalachians with easterly flow and drier air in place. A 20% PoP for now on Thursday as the cold front approaches and this could linger into Friday, as the boundary is favored to undergo frontolysis with the ridge remaining in place near the surface. Daily average temperatures close to or slightly above average. && .AVIATION... (00Z TAFS) Issued at 745 PM EDT Sat Oct 4 2025 Breezy east-northeast winds are expected to continue during the day tomorrow. Showers and a few storms are forecast to spread over the area through the afternoon and evening, with the best chances near the coast. MVFR ceilings will be possible in the mornings before improving to VFR outside of convection for the afternoon. && .MARINE... Issued at 103 PM EDT Sat Oct 4 2025 A prolonged period of Small Craft Advisory conditions will continue into Sunday across the coastal waters due a tight pressure gradient between high pressure to our north and a stalled front to our south. East-Northeast winds of 20 to 30 knots and significant wave heights rapidly increasing just offshore to 5 to 8 feet, highest to the west of the Ochlockonee River. Chances for showers and thunderstorms will increase as the front lifts north Sunday and possibly into Monday with waterspouts possible. Easterly winds may increase to advisory levels again Sunday night into Monday and Monday night into Tuesday. && .FIRE WEATHER... Issued at 103 PM EDT Sat Oct 4 2025 Rainfall chances increase on Sunday and will be in excess of 50% in the FL and SE AL Counties, with the highest chances expected to be confined to the FL Counties on Monday. This will keep RH values well above critical thresholds both days. Easterly transport winds remain strong around 15 to 20 mph on Sunday and Monday. Meanwhile, mixing heights are forecast to range from around 3,000 to 4,000 feet both days, which will lead to good dispersions each day. Due to drying fuels and gusty winds, some elevated fire concerns remain. && .HYDROLOGY... Issued at 103 PM EDT Sat Oct 4 2025 While abundant moisture does move into our area over the next couple days, it appears the source of lift will be more diffuse than previously forecast. As a result, forecast rainfall totals have decreased over the area with most areas seeing around a tenth to a quarter inch, though higher totals up to 0.5 inch are expected near the coast. If some heavier downpours materialize, then the reasonable high-end (90th percentile) totals are around 1 to 1.5 inches. Flooding is not a concern. With ongoing drought, any rain we receive is beneficial, but this will yet again not be a drought-busting rainfall. && .SPOTTER INFORMATION STATEMENT... Spotter activation is not requested. However, spotters are always encouraged to safely report significant weather conditions when they occur by calling the office or tweeting us @NWSTallahassee. && .PRELIMINARY POINT TEMPS/POPS... Tallahassee 70 87 72 86 / 20 70 20 50 Panama City 71 85 72 86 / 30 60 40 60 Dothan 69 83 70 86 / 10 60 20 40 Albany 69 84 71 87 / 10 30 10 30 Valdosta 70 86 72 87 / 10 40 10 30 Cross City 70 88 72 87 / 10 60 10 40 Apalachicola 74 82 73 83 / 40 60 40 50 && .TAE WATCHES/WARNINGS/ADVISORIES... FL...High Rip Current Risk until 1 AM CDT Sunday for FLZ108. High Rip Current Risk through late Sunday night for FLZ115. GA...None. AL...None. GM...Small Craft Advisory until 8 PM EDT /7 PM CDT/ Sunday for GMZ730- 751-752-755-765-770-772-775. && $$ NEAR TERM...LF SHORT TERM...LF LONG TERM....LF AVIATION...Merrifield MARINE...LF FIRE WEATHER...LF HYDROLOGY...Young