941 FXUS62 KTAE 071845 AFDTAEArea Forecast Discussion National Weather Service Tallahassee FL 245 PM EDT Sun Sep 7 2025
...New NEAR TERM, SHORT TERM, LONG TERM, AVIATION, MARINE, FIRE WEATHER, HYDROLOGY...
.NEAR TERM... (Through Monday) Issued at 244 PM EDT Sun Sep 7 2025
A cold front bisecting our area this afternoon moseys through and stalls in the northeastern Gulf later tonight into Monday. Meanwhile, the surface high trudges through the Great Lakes region into the Northeast, causing our winds to turn more northeasterly during the day Monday. Interestingly, a quick look at the surface obs across the Carolinas and eastern Georgia show dew points in the upper 60s to lower 70s as opposed to the upper 40s to middle 50s like our neighbors to the northwest are enjoying. Since our winds are more northeasterly Monday afternoon, those higher dew points get pushed over us. In other words, a quick reprieve from the higher dews are expected tonight, especially west of the Flint/Apalachicola River basins, before quickly returning Monday. Add in the proximity of the stalled front and rain/storm chances will remain in the forecast again Monday, primarily across Florida where they`ll be closer to the front.
Temperatures are also a bit interesting, specially for portions of southwestern Georgia. The aforementioned northeasterly breeze pushing down the higher dew points loves to bring a stubborn stratus deck along with it. Some guidance, notably the NAM (which does okay in these regimes), is much cooler than others by 8 to 10 degrees for areas near Albany and Tifton. Haven`t gone quite that cool, but did nudge temperatures down a bit for a good chunk of SW Georgia, or the lower to middle 80s. Elsewhere, near normal temperatures are expected with middle to upper 80s to near 90, which is still cooler than we`ve dealt with the past few days.
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.SHORT TERM and LONG TERM... (Monday night through next Sunday) Issued at 244 PM EDT Sun Sep 7 2025
The only hazardous weather through next weekend will be a few bouts of Small Craft Advisory conditions over the Gulf waters.
Low-level northeast flow will be persistent throughout the week ahead and next weekend. The main sensible variations will be increased rain chances and less hot conditions on Tuesday, followed by a drying air mass and a greater diurnal variation in temperatures (fancy way of saying hotter days and cooler nights) from Wednesday on.
A broad and somewhat weak 500 mb trough axis... at times somewhat split off from the mid-latitude jet stream... will take all week and next weekend to move from the Lower Mississippi River to near the Carolina, Georgia, and NE Florida coastline. Downstream of this feature, an inverted surface trough or elongated surface low will persist over the Atlantic waters east of the Southeast U.S. coast, with a slow-moving cold front trailing off to the southwest across the FL Peninsula.
Early in the week on Monday night and Tuesday, a weak shortwave will eject out of the 500 mb trough axis, temporarily strengthening the surface trough just offshore in the Atlantic. NAM time-height section over TLH shows that 925-700 mb flow will veer from NE to ESE from Monday night through Tuesday evening, causing a temporary surge of moisture to spread in from the FL Peninsula, where a very moist air mass is currently parked. This will support an increase in shallow convection for more of our Florida and far south Georgia counties, with deeper convection possible over the SE Big Bend.
NE flow will deepen on Wednesday through the 925-700 mb layer, so drier air will start to edge in from the north. By Thursday as the 500 mb trough axis makes slow eastward headway, the cold front over the northern FL Peninsula will make headway south down the peninsula. This will put us deeper and deeper into a drier air mass from Thursday through next weekend. Surface dewpoints over the course of Thursday and Friday will fall through the 60s, reaching the 50s north of the Florida state line. The drier air mass along with the return of clearer skies will allow more cooling of nighttime temperatures, with sunshine boosting afternoon highs back to seasonably warm or hot values.
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.AVIATION... (18Z TAFS) Issued at 244 PM EDT Sun Sep 7 2025
Overall, VFR conditions are generally expected to prevail through the afternoon and into the evening hours. Winds turn more northerly to northeasterly as the day progresses. A few showers and storm remain possible this afternoon with the best chance near KVLD and KTLH.
There`s some indication of lower ceilings and/or visibility possible Monday morning for KABY and KVLD, so have included that in the TAFs with this package along with the potential for lower ceilings lingering at KABY through much of Monday morning.
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.MARINE... Issued at 244 PM EDT Sun Sep 7 2025
Northeast winds of varying strength will persist throughout the week ahead, thanks to high pressure anchored to the north and persistent low pressure east of the Georgia and Carolina coast. Nighttime and morning surges of wind will occur off the land, with a relative lull each afternoon. Strong northeast breezes are forecast in the nighttime surges through Tuesday night. Weaker moderate to fresh breezes are forecast in the nighttime surges of wind on Wednesday and Thursday nights. Seas will quickly deteriorate for boaters who venture into more distant waters.
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.FIRE WEATHER... Issued at 244 PM EDT Sun Sep 7 2025
Winds turn more northeasterly early in the week as a cold front stalls in the northeastern Gulf; some gusty winds are possible, especially for our Georgia and Alabama districts, as the pressure gradient tightens. Transport winds will be out of the northeast to east around 10-15 mph much of the upcoming work week. The proximity of the stalled front leads to the potential for isolated to scattered showers and storms each afternoon across our Florida districts with the best chances across the Southeastern Florida Big Bend.
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.HYDROLOGY... Issued at 244 PM EDT Sun Sep 7 2025
The southeast Big Bend region, mainly around Dixie County, could experience short-lived nuisance flooding through Tuesday evening, in response to thunderstorms with heavy rainfall rates. Thunderstorms will diminish from Wednesday onward.
Otherwise, flooding is not expected for the next 7 days.
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.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.
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.PRELIMINARY POINT TEMPS/POPS... Tallahassee 71 88 70 84 / 20 40 30 40 Panama City 71 90 71 87 / 10 40 40 40 Dothan 67 83 68 85 / 0 20 10 10 Albany 70 84 68 84 / 0 10 10 10 Valdosta 71 85 69 82 / 20 30 20 30 Cross City 72 87 71 85 / 40 70 40 70 Apalachicola 72 87 72 84 / 20 60 60 60
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.TAE WATCHES/WARNINGS/ADVISORIES... FL...None. GA...None. AL...None. GM...Small Craft Advisory from 11 PM this evening to 8 AM CDT Monday for GMZ751-752-770-772.
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NEAR TERM...Reese SHORT TERM...Haner LONG TERM....Haner AVIATION...Reese MARINE...Haner FIRE WEATHER...Reese HYDROLOGY...Haner
NWS TAE Office Area Forecast Discussion