832 FXUS62 KJAX 170019 AFDJAX Area Forecast Discussion National Weather Service Jacksonville FL 819 PM EDT Wed Apr 16 2025 ...New UPDATE, AVIATION... .UPDATE... Issued at 816 PM EDT Wed Apr 16 2025 Forecast remains on track through tonight. No major updates required at this time. && .NEAR TERM... Issued at 158 PM EDT Wed Apr 16 2025 For the latest NE FL and SE GA Daily Key Messages please visit: https://www.weather.gov/media/jax/briefings/nws-jax-briefing.pdf High pressure to the northwest Today, will build to the north Tonight. With subsidence under ridging, and dry air in place a mainly clear night is forecast. The change in location of the high will result in the flow coming more from the northeast overnight. Due to this onshore flow, areas along the coast will be notably warmer overnight, than locations further inland. Lows in the middle 50s along the coast, with lows in the mid 40s further inland are expected. && .SHORT TERM... (Thursday through Friday night) Issued at 158 PM EDT Wed Apr 16 2025 Warm and dry conditions are expected Thursday and Friday as high pressure moves to the northeast, promoting winds to shift onshore. Easterly winds on Thursday will shift more southeasterly Friday, which will allow `cooler` temperatures near the coast both days, with highs in the mid to upper 70s. Inland highs will have a chance to rise above normal with clear skies and calmer winds, reaching the low to mid 80s Thursday, and mid to upper 80s on Friday. Low dewpoints both days will keep heat indices from getting too unpleasant. Onshore breeze overnight will allow for more mild temperatures along the coast, with inland lows dipping into the 50s. && .LONG TERM... (Saturday through next Wednesday) Issued at 158 PM EDT Wed Apr 16 2025 Similar temperatures to Friday are forecast this weekend with partly cloudy skies, although coastal locations will be heating up into the low to mid 80s as winds remain from the southeast. Rain potential returns on Monday and Tuesday as a front approaches from the northwest and stalls over central Georgia. With daytime temperatures reaching the mid to upper 80s and PWATs rising near 1-1.5", there is a chance for isolated thunderstorms Tuesday afternoon over portions of inland southeast Georgia. && .AVIATION... (00Z TAFS) Issued at 816 PM EDT Wed Apr 16 2025 VFR conditions will persist through the forecasted period with calm overnight winds building from out of the east by around 16z on Friday. && .MARINE... Issued at 158 PM EDT Wed Apr 16 2025 A cold front will continue to move south of the area, as high pressure builds to the northwest. This high will build more toward the north Tonight, then northeast on Thursday. The high will remain centered to the northeast Friday into Saturday, then to the east on Sunday. A frontal system will affect the area early next week, bringing a chance for showers and thunderstorms. Rip Currents: Moderate through Thursday. && .FIRE WEATHER... Issued at 158 PM EDT Wed Apr 16 2025 Critically low relative humidity values will continue for inland locations on Thursday, near 20-25%, but winds will be a little bit calmer as they shift easterly. Dispersion will be fair on Thursday, with overall good values on Friday with some patchy high dispersion over inland southeast Georgia and north central Florida as winds increase and turn to southeasterly. The southeasterly winds will help bring some moisture into the area, although minRH will stay near 30-35% for inland locations Friday through the weekend. && .PRELIMINARY POINT TEMPS/POPS... AMG 45 82 55 86 / 0 0 0 0 SSI 55 75 65 78 / 0 0 0 0 JAX 49 80 60 83 / 0 0 0 0 SGJ 55 78 63 80 / 0 0 0 0 GNV 47 84 58 88 / 0 0 0 0 OCF 47 86 58 89 / 0 0 0 0 && .JAX WATCHES/WARNINGS/ADVISORIES... FL...None. GA...None. AM...None. && $$