Area Forecast Discussion
Issued by NWS Jacksonville, FL
Issued by NWS Jacksonville, FL
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263 FXUS62 KJAX 052339 AFDJAX Area Forecast Discussion National Weather Service Jacksonville FL 739 PM EDT Sat Sep 5 2026 .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 - Moderate Rip Current Risk Northeast FL Beaches this Weekend - Daily Heat Index near 105 through the Weekend - Daily Afternoon/Evening Thunderstorms Through Next Week. Strong/Severe Storm Risk Sunday Evening Southeast GA. Localized Flooding Rain Risk through Monday - Patchy Inland Late Night & Early Morning Fog && .NEAR TERM /UNTIL 7 AM SUNDAY MORNING/... Highlights Through Tonight: - A dry night is forecast, with a bit of inland fog A cold front will slide south into central GA Tonight. Dry weather with partly cloudy skies expected. Low level moisture could result in a few patches of fog overnight inland. Lows Tonight in the mid 70s. && .SHORT TERM /7 AM SUNDAY MORNING THROUGH MONDAY NIGHT/... Main Highlights This Period: (Sunday through Monday night) - Localized Flooding Rain Threat - Severe Storm Risk Southeast GA Late Sunday Plenty of moisture will be present Sunday ahead of an incoming cold front from the north. Diurnal storms will spark up in the early afternoon area-wide, with the focus for strong to severe storms being later in the day as the front inches closer to southeast Georgia. Overall, looks mainly like a wind threat with any strong to severe development, although there remains the concern for heavy downpours causing localized flooding concerns for most of the area. The best chance for the severe storms will be over southeast Georgia from the early evening through just after midnight. The front will reach the Florida/Georgia state border during the overnight hours, keeping a scattered shower and storm threat through the night. The west/southwest surface winds ahead of the front will help bring in more humidly, and cause high temperatures to be in the lower to mid 90s. The front will remain stalled through most of Monday near the state border, later sinking south into central Florida Monday night. The increased moisture and instability from the nearby lingering front will prompt numerous showers and storms area-wide on Monday. Highest storm chances will generally be in the afternoon and evening, although we will see activity overnight and in the morning as well. Temperatures north of the front where surface winds have shifted northeasterly will be a little cooler, in the mid to upper 80s, while most of inland northeast Florida sees highs in the low 90s. && .LONG TERM /TUESDAY THROUGH SATURDAY/... Main Highlights This Period: (Tuesday through Saturday) - Breezy Onshore Winds Tuesday & Wednesday - Daily Thunderstorms Chances - Elevated Tidal Levels with Approach of Sept 11 New Moon Stronger onshore flow develops Tuesday and Wednesday behind the cold front passage, lowering temperatures overall and keeping high precipitation chances, especially for inland locations. As we saw this previous week, showers will move onshore in the morning, with a few isolated storms possible as well, with coverage and intensity of storms increasing as they move inland later in the afternoons. High temperatures will be in the mid 80s to low 90s, cooler near the coast. Thursday and Friday, temperature rise back up to near or just above normal, with overall lower precipitation chances compared to earlier in the week. Southwesterly winds will bring showers and isolated storms off the Gulf, reaching the I-75 corridor area in the morning, coverage then spreading throughout the day. && .AVIATION /00Z SUNDAY THROUGH 00Z MONDAY/... A dry night is forecast with prevailing VFR conditions. Spotty inland fog could cause restrictions at times overnight. The morning is expected to be dry Sunday, but cumulus clouds will develop by mid morning, which could produce restrictions. Convective chances will increase early in the afternoon, with prob30 and tempo groups including in the TAFs to reflect when most confident with activity occuring at the sites. && .MARINE... Weak high pressure remains to the south of the waters today while a frontal boundary slowly moves into the southeast states Sunday through Monday. The weak frontal passage is anticipated Monday night as high pressure builds to the northeast of the forecast waters. A brief period of Small Craft Exercise Caution conditions is possible mainly over the Georgia waters Tuesday. The front weakens mid- week as high pressure builds south of the region. Another front approaches from the north early next weekend. Rip Currents: Seas/surf look to stay near or below 2 ft into Sunday. There is a mix of weak wind waves and small southeast swells. As such, rip current risk will remain in the low to moderate range for the area beaches for rest of the weekend and probably into into first half of Monday as well. Monday afternoon into Tuesday will see increasing chance of rip current as flow turns to prevailing onshore. && .FIRE WEATHER... - Patchy Low Dispersions Northeast Florida Monday West to southwest winds this weekend will bring a more dominant west coast sea breeze across the area. Morning showers and isolated storms will begin to move inland form the Gulf, with rainfall expanding in coverage into the afternoon and early evening across inland areas toward the Atlantic coast where the east coast sea breeze will be near the Interstate 95 corridor to the coast. There is a risk of stronger to severe storms Sunday early evening into Sunday night across southeast Georgia as a front moves into the area. The front is expected to linger across northeast Florida Monday, which will create low daytime dispersion, more cloudiness and bring elevated rain chances through the day. Winds will transition to northeast along and north of the front Monday. Fog Potential: Gusty and erratic winds will occur with thunderstorm activity. Patchy inland morning fog each day. && .HYDROLOGY... Coastal water levels begin to increase next week with the approach of the New Moon on Sept 11th and breezy onshore easterly winds late Monday through Wednesday, with the peak winds across the local waters and coast Tuesday. At this time, extended probabilistic guidance keeps water levels below action stage late Tuesday through Wednesday both along the local Atlantic coast and within the St. Johns River basin. && .PRELIMINARY POINT TEMPS/POPS... AMG 75 94 73 87 / 10 50 80 80 SSI 77 92 76 86 / 10 50 80 90 JAX 75 93 73 88 / 10 50 70 90 SGJ 75 92 74 88 / 10 50 70 90 GNV 73 92 73 89 / 10 40 40 100 OCF 74 92 74 90 / 10 30 50 90 && .JAX WATCHES/WARNINGS/ADVISORIES... FL...None. GA...None. MARINE...None. && $$