Area Forecast Discussion
Issued by NWS
Issued by NWS
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084 FXUS62 KTAE 052348 AFDTAE Area Forecast Discussion National Weather Service Tallahassee FL 648 PM EST Wed Feb 5 2025 ...New AVIATION... .NEAR TERM... (Through Thursday) Issued at 332 PM EST Wed Feb 5 2025 Zonal flow aloft and surface high pressure over the Florida Peninsula remains in place through at least tomorrow. Thus expect fairly benign weather conditions to persist. Fog overnight will remain a problem as southerly flow during the day continues to advect warm moist air across the region. Clear skies and calm winds overnight then condenses this moisture as we cool with patchy to dense fog then forming. Expect this fog to remain in place until an hour or two after sunrise as it takes a bit of time to burn off. Low level stratus that accompanies the fog will then gradually lift throughout the day, before leading to mostly clear skies by the late afternoon/early evening hours. Expect daytime highs generally in the mid to upper 70s with overnight lows generally in the mid to upper 50s. && .SHORT TERM and LONG TERM... (Thursday night through Tuesday) Issued at 332 PM EST Wed Feb 5 2025 Not a lot has changed in the overall thinking through this range of the forecast. Persistence is the key to the forecast in this type of pattern. At mid levels, zonal flow over the CONUS is in place with modest ridging over Western Cuba and the Florida Straits, which is keeping the storm track well to our north. The surface pattern is dominated by a high pressure area over the Eastern Gulf - an extension of the subtropical ridge. For February this type of pattern lends itself to dry weather, with the only sensible weather being stretches of foggy nights/mornings and skies clearing out late morning to midday. Given that there is limited variability in the model data through Sunday, didn`t make significant changes to the blended guidance, except in a few cases where it seems the deterministic blend is on the higher end of the probabilistic spread. Interestingly, on Sunday, the deterministic output from the NBM suggests mid 80s for highs across North Florida, which is around the 90th percentile of the available guidance within the blend. This is about 4-6 degrees above the MOS and would be very near a record for the date. Looking at the overall pattern, and an approaching deamplifying upper low, I don`t really feel that being on the upper end of the guidance is the best option, so adjusted the forecast lower on Sunday for MaxTs more so than anywhere else. By Monday, a broadening trough across the Western CONUS will begin to shift east and further flatten the ridging across Cuba. With this ongoing, moisture return off the Gulf will align along an approaching frontal boundary and return rain chances to the forecast for the latter portion of the forecast period. While the details are uncertain given the time range, if the pattern isn`t progressive enough, the tendency would be for the frontal boundary to stall across or very near our region, leading to multiple days of potentially heavy rainfall. Of course, greater specificity in where heavy rain would occur for Mon-Tue and beyond will be determined in the coming days. The introduction of rain to the forecast will result in cooler temperatures, but still above normal at the end of the period. && .AVIATION... (00Z TAFS) Issued at 622 PM EST Wed Feb 5 2025 VFR conditions are expected the next few hours. Another round of fog with LIFR/VLIFR cigs/vsbys is expected tonight at all sites, though confidence is a bit lower for ECP, DHN, and ABY. The fog and stratus will be slow to lift with MVFR cigs continuing until about 18 to 19z. Clouds will break up after 18z with VFR conditions afterward. && .MARINE... Issued at 332 PM EST Wed Feb 5 2025 Weak surface high pressure over the northeastern Gulf will lead to light winds into Thursday. The high slides more into the Atlantic and allows a light to moderate southerly wind to return to the Gulf waters by the weekend. Dense fog will remain a factor over the waters through the week due to the aforementioned light winds in the northeastern Gulf. && .FIRE WEATHER... Issued at 332 PM EST Wed Feb 5 2025 Areas of dense fog will be the main concern during the overnight and mid-morning hours for the next few days. In addition, low dispersions are likely along the coast through the day on Thursday. && .HYDROLOGY... Issued at 332 PM EST Wed Feb 5 2025 There are no flood concerns through Sunday. An approaching frontal system on Monday will need to be monitored for potential heavy rainfall continuing through Wednesday, but it is too early to assess any risk of flooding. && .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 80 56 77 59 / 0 0 0 0 Panama City 74 59 72 62 / 0 10 10 10 Dothan 78 59 78 61 / 10 10 10 10 Albany 78 57 77 60 / 10 10 10 10 Valdosta 78 55 80 59 / 0 0 0 0 Cross City 80 53 77 56 / 0 0 0 0 Apalachicola 69 57 68 60 / 10 10 10 10 && .TAE WATCHES/WARNINGS/ADVISORIES... FL...None. GA...None. AL...None. GM...Dense Fog Advisory until 10 AM EST Thursday for GMZ730-755-765- 775. && $$ NEAR TERM...Oliver SHORT TERM...Godsey LONG TERM....Godsey AVIATION...Young MARINE...Godsey FIRE WEATHER...DVD HYDROLOGY...Godsey