Area Forecast Discussion
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Issued by NWS
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220 FXUS62 KTAE 302106 AFDTAE Area Forecast Discussion National Weather Service Tallahassee FL 405 PM EST Sun Nov 30 2025 ...New SHORT TERM, LONG TERM, AVIATION, MARINE, FIRE WEATHER, HYDROLOGY... .KEY MESSAGES... Issued at 1144 AM EST Sun Nov 30 2025 - A high chance of rain is expected by Monday night into Tuesday, and will be most beneficial in terms of possibly dialing back the drought northwest of the FL Big Bend. There is a 60-80% chance of 1 inch of rain or greater for southeast Alabama, the Florida Panhandle, and adjacent Southwest Georgia. - There is a low chance of a few stronger thunderstorms near the Eastern FL Panhandle and Big Bend coast with the next system on Monday night into Tuesday. Keep checking back for updates. - Marine winds will increase during Monday with a 70% chance of advisory-level winds for small craft Monday night into Tuesday. - There is a medium chance for additional beneficial rainfall late in the week into the weekend. && .SHORT TERM... (This Afternoon through Tuesday) Issued at 1144 AM EST Sun Nov 30 2025 A positively tiled longwave trough will be out next weather maker as a weak area of low pressure moves through the region Monday night. This will lift a warm front northward during the overnight hours, followed by a cold frontal passage on Tuesday. In addition to some beneficial rainfall northwest of the FL Big Bend centered on Monday night into Tuesday (discussed in more detail in the Hydrology section at the bottom), some stronger thunderstorms are possible closer to the Eastern FL Panhandle and Big Bend coasts. For thunderstorm potential, seasonably high deep layer shear will be in place, and high low-level SRH in particular. The questions are how much surface-based instability can be generated, will it overlap with the aforementioned SRH, and buoyancy? HREF shows the probability for 60-65+ dew points highest along and south of I-10 where SB CAPE may approach ~500 J/kg as well from Monday night into Tuesday in association with a northward lifting warm front. Given sufficient moisture and surface-based instability, if SRH (0-1km) of 200-300 M2/S2 can overlap with sufficient buoyancy, then there would be the potential for thunderstorms to produce a brief tornado or two near the Eastern FL Panhandle and Big Bend coast from Monday night into Tuesday morning. Cannot rule strong storms later Tuesday morning and afternoon in the FL Big Bend and I-75 corridor of GA as the air mass recovers ahead of the cold front, although the main threat should begin to shift to gusty winds as the low-level SRH decreases, that is if buoyancy is sufficient. Otherwise, rain beginning to fall through the drier air mass on Monday northwest of the FL Big Bend will result in cooler highs in the lower to middle 60s, closer to the 25th percentile of guidance. Cannot rule out some patchy fog as well Monday night ahead of the warm front, although the potential is low, given elevated easterly winds. && .LONG TERM... (Tuesday night through next Saturday) Issued at 1144 AM EST Sun Nov 30 2025 A chilly air mass for Wednesday and Thursday mornings behind the departing storm system with lows in the 30s across much of the region may lead to cold weather sheltering concerns for vulnerable populations. After dry weather on Wed and Thu, the next storm system approaches with wet weather expected Friday into the weekend. Details on rainfall in the Hydrology section at the bottom. && .AVIATION... (18Z TAFS) Issued at 1144 AM EST Sun Nov 30 2025 Multi-layered clouds (mostly mid and high clouds) associated with a low pressure system and a band of convection to our west. For this TAF period, adjusted timing of showers developing just to our west in southern Alabama per high res guidance and local radar imagery into ECP and DHN from 20-21Z to 02Z. Also tweaked cloud heights and wind direction per surface observations. Generally VFR through the period. Models do show MVFR cigs reaching I65 corridor this evening but halting and dissipating to our west. Showers develop into southern AL this afternoon reaching our FL panhandle and southeast AL counties after 18Z through the afternoon then dissipating this evening. Models also show MVFR/IFR conds building from the west after this TAF period for planning purposes. && .MARINE... Issued at 1144 AM EST Sun Nov 30 2025 High pressure to the north of the waters and a frontal boundary stalled to the south lead to fresh easterly breezes late tonight into Monday mainly to the west of Apalachicola to the Okaloosa/ Walton County line, where small craft operators are advised to exercise caution. Low pressure northwest of the waters will lift the aforementioned frontal boundary northward as a warm front on Monday night with winds becoming southerly, and then clocking around to northwesterly as the low moves away from the waters. There is a 70% chance a small craft advisory will be needed for most of the coastal waters from Monday night into Tuesday. We expect tranquil boating conditions to return by Wednesday and continue into Thursday. The approach of the next storm system will increase winds Friday into Saturday with a 50% chance of advisory-level conditions. && .FIRE WEATHER... Issued at 1144 AM EST Sun Nov 30 2025 A wetting rain is expected to begin on Monday northwest of the FL Big Bend and spread across the remainder of the region by Tuesday, with the most beneficial rains in terms of possibly dialing back the drought a bit northwest of the FL Big Bend. The main fire weather concern are pockets of low dispersion across the region on Monday due to low mixing heights which will offset otherwise brisk east transport winds. Looking ahead to Wednesday and Thursday, a dry period of weather with a 30% probability of elevated fire weather concerns due to low afternoon RH, especially from the Flint River Valley east in GA and the FL Panhandle and Big Bend. && .HYDROLOGY... Issued at 1144 AM EST Sun Nov 30 2025 The next chance of rainfall will be centered on Monday afternoon into Tuesday. Rain will overspread portions of Southeast AL and the FL Panhandle into the Flint River Valley GA during Monday aftn then across the remainder of the region Monday night into Tuesday. Amounts will generally range from 1 to 2 inches from the Flint River Valley GA into Southeast AL and the FL Panhandle with up to 1 inch in the FL Big Bend; a reasonable worst case scenario (90th percentile) adds about 1 inch to these amounts with CAMs showing a bullseye in the FL Panhandle where there is a 50% chance of amounts around 3" closer in Walton/Bay Counties where activity off the Gulf moves inland. Overall, the most beneficial rains in terms of possibly dialing back the drought a bit are expected to remain northwest of the FL Big Bend. The aforementioned amounts may lead to poor drainage flooding, especially urban areas, as water will not readily absorb into dry soil and runoff quickly, which may also create some slick roads due to oil build up. Brisk onshore flow from Monday night into Tuesday will lead to increasing water levels along the Apalachee Bay coast. Given we`re on the descending end of the astronomical tide cycle (between the new and full moon) and winds are already clocking around to offshore prior to the higher of the mixed semidiurnal tides Tue afternoon, we`re not expecting coastal flooding attm. Looking ahead, another system may impact the region at the end of the week with a 30-50% chance of an additional 1 inch or greater. && .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 74 56 73 62 / 10 20 30 80 Panama City 72 57 73 60 / 30 30 40 90 Dothan 70 52 68 55 / 20 30 40 90 Albany 70 51 67 55 / 20 30 30 90 Valdosta 75 53 72 59 / 0 10 30 70 Cross City 79 55 79 62 / 0 10 20 50 Apalachicola 70 60 70 64 / 20 20 30 80 && .TAE WATCHES/WARNINGS/ADVISORIES... FL...High Rip Current Risk until 7 PM EST this evening for FLZ115. GA...None. AL...None. GM...None. && $$ SHORT TERM...LF LONG TERM....LF AVIATION...Scholl MARINE...LF FIRE WEATHER...LF HYDROLOGY...LF