Area Forecast Discussion
Issued by NWS Jacksonville, FL
Issued by NWS Jacksonville, FL
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003 FXUS62 KJAX 060600 AFDJAX Area Forecast Discussion National Weather Service Jacksonville FL 100 AM EST Sat Dec 6 2025 .KEY MESSAGES... For the latest NE FL and SE GA Daily Key Messages please visit: https:/www.weather.gov/media/jax/briefings/nws-jax-briefing.pdf - Locally dense fog expected across inland NE FL late tonight/early Sat AM - Beneficial Rainfall Across Most Areas through Tonight - Periods of Heavy Rainfall Shifts Across North Central and Northeast FL - Sunday and Sunday Evening. Isolated TStorms Possible South of I-10. Severe Weather Not Anticipated. - Severe to Extreme Drought Continues for Inland Areas - Light Freezes & Frost Possible Inland on Mon & Tues Nights && .NEAR TERM /THROUGH TONIGHT/... A frontal boundary presently near our southern zones will slowly shift southward as weak surface high pressure moves in over the deep south, while a moist airmass overlaps behind the frontal boundary. PWATS of about 1.3 to 1.5 inches are behind this boundary today while the deep layer flow aloft remains fast from the west to southwest. One or more perturbations in the flow in the mid to upper levels will traverse the region, especially over nrn 2/3rds of the area into the evening hours. This should result in moderate amount of lift to produce areas to widespread rainfall over the nrn half of the area today. This enhanced region of lift will slowly shift southward tonight, but slowly loses some steam as it heads southward so chances come down tonight, but only to about 65-75 percent for central parts of the forecast area. Chances of thunder are low at less than 10 percent given the lack of any appreciable instability so no thunder is mention in the forecast. Through Tonight, forecast rainfall amounts are noted to be about 0.3 to 0.5 inches over the nrn 2/3rds of the area with less than 0.3 inches over the southeast portions where the lift will be quite a bit weaker. Temperatures will below normal for most areas with highs in the mid 50s for inland southeast GA and mid 60s toward the central areas, and then lower 70s for far southeast zones. Lows tonight not too chilly given the abundant cloud cover /additional rainfall. Main driving hazard will be the rain on area roads, but especially the areas of fog that can be expected both this morning and again later tonight. Area visibilities may be below 1 mile at times, with 1/4 mile certainly possible this morning. Will monitor conditions on the need for special weather statements or a dense fog advisory (with the latter being a lower probability at this time). && .SHORT TERM /SUNDAY THROUGH MONDAY NIGHT/... Showers with a potential for embedded thunderstorms will continue over the forecast area through most of the day on Sunday with the heaviest rains occurring over northeast Florida with convection moving offshore and dispersing by Monday afternoon as the cold front boundary presses southward over the Florida peninsula. Dry weather conditions and northwesterly winds will be in place by Monday afternoon and evening as high pressure conditions dominate the weather pattern through the beginning of next week. High temperatures for Sunday and Monday will be in the upper 50s and lower 60s over southeast Georgia and in the 60s and lower 70s over northeast Florida with warmer temperatures occurring over north central Florida. Overnight low temperatures will drop significantly by Monday night, following the frontal passage, with min temps in the mid to upper 30s for southeast Georgia and in the 40s for northeast Florida on Monday night. && .LONG TERM /TUESDAY THROUGH FRIDAY/... Dry weather conditions will continue through much of the week with chances for precipitation increasing by Friday as high pressure moves off to the northeast and a more moist southwesterly stretches across the forecast area ahead of an advancing front pressing in from out of the northwest. Temperatures will experience a mild warming trend through next week with initially below average temperatures rising to be near and above normal by the end of the week. && .AVIATION /06Z SATURDAY THROUGH 06Z SUNDAY/... Mainly IFR and LIFR cig conditions start this period with these cigs widespread, though initial brief MVFR cigs at SGJ. Will start to see some more rain move in from the west after 12z and slowly shift east and southeast through the day and affecting the TAF sites. Still some moderate confidence the cigs will stay low at IFR during midday time period, but some indications some improvement is possible as IFR probabilities drop off some around the 18z-23z time frame. For now, will maintain the low cigs during the aftn and let subsequent TAFs refine those possible improvements which again may be temporary anyway. Sfc winds mainly light northwest to north today up to about 6-12 kt during the daylight hours. && .MARINE... A frontal boundary will stall south of the forecast waters today and into tonight. A wave of low pressure will then develop along this front just south of the northeast Florida waters late tonight with widespread rainfall and a few embedded thunderstorms overspreading our local waters early Sunday into Sunday night. Low pressure will move offshore on Sunday night, resulting in strengthening northwest winds. High pressure will then build over the southeast states early next week, creating strengthening northerly winds and Small Craft Advisory conditions from Monday through Tuesday evening. Main initial headline right now is for a brief period of Small Craft Exercise Caution (for winds) for most areas waters starting about 20z today and lasting to about 03z tonight. Rip Currents: Moderate risk today for southeast GA and northeast FL, and mostly the northeast FL beaches on Sunday. && .FIRE WEATHER... Mostly cloudy and wet conditions will continue through the weekend as a cold front slowly sinks southward, moving through the area by Sunday night. The axis of heavier showers will be over Northeast FL later today and continue into much of Sunday before ending by Sunday Night. Isolated thunderstorms are possible with the heavier showers on Sunday, however no severe storm developments are not expected. Cloud cover, rain coverage, and light winds will result in low mixing heights and low daytime dispersions through the weekend. Drier and seasonably cool conditions will be expected for the start of next week as weak high pressure builds over the region. Potential for early morning rain mixed with fog for this morning and again early Sunday morning. && .PRELIMINARY POINT TEMPS/POPS... AMG 45 58 47 59 / 60 50 30 30 SSI 50 62 52 62 / 70 60 40 20 JAX 50 64 52 65 / 70 80 50 20 SGJ 55 69 57 68 / 70 80 70 20 GNV 54 68 56 70 / 70 90 70 20 OCF 58 72 59 70 / 60 80 80 20 && .JAX WATCHES/WARNINGS/ADVISORIES... FL...None. GA...None. MARINE...None. && $$