Area Forecast Discussion
Issued by NWS Jacksonville, FL
Issued by NWS Jacksonville, FL
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976 FXUS62 KJAX 050656 AFDJAX Area Forecast Discussion National Weather Service Jacksonville FL 156 AM EST Wed Feb 5 2025 ...New AVIATION... For the latest NE FL and SE GA Daily Key Messages please visit: https://www.weather.gov/media/jax/briefings/nws-jax-briefing.pdf .AVIATION... (06Z TAFS) Issued at 155 AM EST Wed Feb 5 2025 Fog and low stratus ceilings will overspread GNV after 09Z, with LIFR conditions expected to then prevail through around 15Z. Periods of MVFR conditions will otherwise be possible overnight at VQQ, CRG, and SSI, with VFR conditions expected through around sunrise at JAX and SGJ. Low stratus and possibly dense fog developing overnight across inland southeast GA is expected to push southeastward towards the SSI terminal after sunrise, with IFR to LIFR conditions expected during the mid and late morning hours. Low stratus ceilings will also approach the Duval County terminals from the northwest after sunrise, with confidence high enough to indicate IFR conditions at VQQ for a brief period during the mid to late morning hours. Confidence in IFR impacts was too low to include anything other than scattered ceilings at JAX and CRG during the mid to late morning hours. Otherwise, brief period of MVFR visibilities will be possible due to radiation fog at SGJ and the Duval County terminals just after sunrise. VFR conditions are then expected to prevail at the regional terminals by 17Z. Dense sea fog may begin to spread onshore along the northeast FL coast towards sunset, but confidence in impacts at SGJ remains too low to indicate any sub-VFR conditions at this time. Light westerly surface winds, sustained around 5 knots or less, will continue overnight at SSI, while generally calm winds prevail elsewhere through sunrise. Westerly surface winds will develop at the regional terminals shortly after sunrise, with sustained speeds increasing to around 5 knots by noon as winds shift to west-southwesterly. The Atlantic sea breeze boundary will develop during the early afternoon hours, with surface winds shifting to easterly at SGJ by 18Z, with speeds increasing to 5-10 knots, while southerly winds of 5-10 knots will prevail after 18Z at SSI. && .UPDATE... Issued at 703 PM EST Tue Feb 4 2025 Dense fog is expected to spread onshore along the immediate Atlantic coast within the next few hours south of Jacksonville, which will persist through the morning. Around midnight a second area of concern for dense fog will pop up along I-75, which will also linger through the night and begin to dissipate after sunrise. Two separate Dense Fog Advisories have been issued for those areas with higher confidence, and may need to be expanded further inland across portions of northeast Florida later tonight (north central Florida and the rest of St. Johns and Flagler counties especially). && .SHORT TERM... (Wednesday through Thursday night) Issued at 205 PM EST Tue Feb 4 2025 Beautiful weather continues as high pressure ridging envelops the area. High pressure will create calm to light winds and partly cloudy to mostly clear skies. Daytime highs will be in the upper 70s to lower 80s with overnight lows in the upper 50s to low 60s. The development of dense fog will be possible over inland and coastal areas overnight and into the morning hours. && .LONG TERM... (Friday through next Tuesday) Issued at 205 PM EST Tue Feb 4 2025 Partly cloudy to mostly clear skies will continue into the weekend with daytime highs in the upper 70s to low 80s. Timing for a cold frontal boundary making its way into the area from the northwest, seems to be around the Sunday night to Monday afternoon timeframe and is anticipated to stall over the area at the beginning of next week. No matter the timing, this frontal boundary will increase chances for precipitation beginning in southeast Georgia and will stretch south into northeast Florida. Temperatures will decrease behind the cold front bringing daytime high temperatures down to near normal next week. && .MARINE... Issued at 205 PM EST Tue Feb 4 2025 Fog will be the main issue through Wednesday morning and will plan to hoist a dense fog advisory for the marine waters from Fernandina To Flagler Beach and out to 20 nm. Additional advisories may be needed. Generally Light winds and low seas expected through the rest of the week with high pressure ridge in control over the forecast region. A weak front will approach Wed aftn and evening, but stall near or just north of the Altamaha River, and then lift back north as a warm front. Another stronger cold front will approach from the north late in the weekend, and possibly push into the forecast waters on Monday. The main impact weather concern next couple of days is the sea fog that is likely to form later tonight and linger Wednesday morning. Another chance of fog again Wed night/early Thursday. Rip Currents: Weak easterly swells of 1-2 ft at about 8-10 seconds will keep a low-end moderate risk of rip currents in place through Wednesday. && .CLIMATE... Issued at 425 AM EST Tue Feb 4 2025 Record high temperatures at our designated climate sites through Sunday: Feb 4 Feb 5 Feb 6 Feb 7 Feb 8 Feb 9 ---------------------------------------------------- Jacksonville 84/2022 87/1957 85/2020 82/2019 85/2019 88/1937 Gainesville 87/1957 86/1957 88/1957 86/1957 86/2019 86/1939 Alma, GA 80/1957 85/1957 82/2008 82/2019 84/1957 83/1957 Craig Airport 84/2022 83/2008 85/2008 81/2018 82/1999 83/1982 && .PRELIMINARY POINT TEMPS/POPS... AMG 78 56 80 58 / 0 0 0 0 SSI 71 55 75 57 / 0 0 0 0 JAX 81 58 82 57 / 0 0 0 0 SGJ 76 58 79 57 / 0 0 0 0 GNV 81 56 81 55 / 0 0 0 0 OCF 83 58 82 57 / 0 0 0 0 && .JAX WATCHES/WARNINGS/ADVISORIES... FL...Dense Fog Advisory until 10 AM EST this morning for FLZ021-035- 133-136-138-220-236-240-340-422-522. GA...None. AM...Dense Fog Advisory until 11 AM EST this morning for AMZ452-454. && $$