Sunrise 6:35 AM   Sunset 8:10 PM Moonrise 5:03 AM   Moonset 6:58 PM

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AMZ450 Coastal Waters From Altamaha Sound To Fernandina Beach Fl Out 20 Nm- Coastal Waters From Fernandina Beach To St. Augustine Fl Out 20 Nm- Coastal Waters From St. Augustine To Flagler Beach Fl Out 20 Nm- 934 Am Edt Tue May 7 2024
Rest of today - South winds 5 to 10 knots, becoming southeast 10 to 15 knots this afternoon. Seas 2 to 3 feet. Wave detail: southeast 3 feet at 6 seconds. Intracoastal waters a moderate chop. Tonight - South winds 10 to 15 knots, becoming southwest 5 to 10 knots after midnight. Seas 2 to 3 feet. Wave detail: southeast 3 feet at 6 seconds. Intracoastal waters a moderate chop. Wednesday - South winds 10 to 15 knots. Seas 2 to 3 feet. Wave detail: southeast 3 feet at 6 seconds. Intracoastal waters a moderate chop. A slight chance of showers in the afternoon. Wednesday night - South winds 10 to 15 knots, becoming southwest 5 to 10 knots after midnight. Seas 2 to 4 feet, occasionally to 5 feet. Wave detail: southeast 3 feet at 5 seconds. Intracoastal waters a moderate chop. Thursday - South winds 10 to 15 knots. Seas 2 to 3 feet. Wave detail: southeast 3 feet at 6 seconds. Intracoastal waters a moderate chop. A slight chance of showers and Thunderstorms in the afternoon. Thursday night - Southwest winds 10 to 15 knots. Seas 2 to 3 feet. Wave detail: southeast 3 feet at 6 seconds. Intracoastal waters a moderate chop. A chance of showers. A chance of Thunderstorms, mainly in the evening. Friday - Southwest winds around 10 knots, increasing to 15 to 20 knots in the afternoon. Seas 2 to 4 feet, occasionally to 5 feet. Intracoastal waters choppy. A chance of showers and Thunderstorms in the morning, then showers and Thunderstorms likely in the afternoon. Friday night - West winds 10 to 15 knots. Seas 2 to 3 feet. Intracoastal waters a moderate chop. A chance of showers and Thunderstorms, mainly in the evening. Saturday - North winds 10 to 15 knots, becoming west. Seas 2 to 3 feet. Intracoastal waters a moderate chop. A slight chance of showers. A slight chance of Thunderstorms through the night.
winds and waves higher in and near Thunderstorms.

AMZ400 Synopsis For Altamaha Sound Ga To Flagler Beach Fl Out To 60 Nm- 934 Am Edt Tue May 7 2024
Synopsis -
high pressure ridge will gradually shift south and east through Thursday with breezy south winds expected at times. Offshore winds develop by Thursday night as a cold front approaches the region. Evening southerly wind surges may lead to cautionary conditions for small craft each night until the cold front arrives by Friday night. Offshore winds will increase Friday ahead of a frontal passage. Brief period of strong northerly winds possible in the wake of the front Friday night into Saturday.
Gulf stream -
the approximate location of the west wall of the gulf stream as of may 04, 2024 at 1200 utc - .
64 nautical miles east of flagler beach. 73 nautical miles east of saint augustine beach. 90 nautical miles east southeast of jacksonville beach. 101 nautical miles east of st simons island.
this data courtesy of the naval oceanographic office.

FXUS62 KJAX 071329 AFDJAX

Area Forecast Discussion National Weather Service Jacksonville FL 929 AM EDT Tue May 7 2024

New UPDATE

UPDATE
Issued at 928 AM EDT Tue May 7 2024

For the latest NE FL and SE GA Daily Key Messages please visit: https:// www.weather.gov/media/jax/briefings/nws-jax-briefing.pdf

Adjusted PoPs slightly for this afternoon, main area for any shower/storm development still expected along the I-95 corridor in NE FL as the sea breeze moves inland. Temperatures this afternoon will get into the lower 90s for inland locations with cooler temperatures along the coast in the upper 80s.

NEAR TERM
Issued at 309 AM EDT Tue May 7 2024

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 ridging from out of the Gulf will strengthen over the region today resulting in inhibited convection with potential showers and storms forming in the afternoon hours primarily along the diurnal sea breeze convergence followed by dry weather conditions through tonight and on into Wednesday morning. High temperatures this afternoon will rise into the 90s over inland areas and into the upper 80s along the coast. Overnight low temperatures will drop down into the mid to upper 60s over inland areas and into the lower 70s for areas near the shoreline and along the St Johns River. Patchy early morning fog developments, potentially forming over areas west of the I-75 corridor will dissipate with the sunrise.

SHORT TERM
(Wednesday through Thursday night)
Issued at 309 AM EDT Tue May 7 2024

The main story through midweek will be the abnormally hot afternoons as stout upper ridging builds overhead and increasing offshore winds pins the cooling sea breeze over the coastal waters.

Very limited rain chances by Wednesday as a batch of dry air drains precipitable water and subsidence capping builds. There is a chance that an isolated late-afternoon shower or two develops along the pinned sea breeze which may push right into the I-95 corridor but unlikely any further. Otherwise, mostly sunny skies and temps pushing toward the mid 90s areawide. These hot readings will even occur at the coast with a the sea breeze push being delayed until around the time of peak heating.

Ridging aloft will flatten slightly by Thursday but gradients tighten as a cold front to the northwest makes inroads into the Southeast. Strengthening southwesterly winds, with gusts around 20- 25 mph, will keep the sea breeze offshore and allow deeper mixing (better heating) under mostly sunny skies. Daily record high temperatures will be threatened Wednesday and Thursday as Heat Index values climb to near triple digits. Being the first HOT days of the year, impacts on heat-sensitive (the young, elderly, and outdoor workers) groups will be possible.

LONG TERM
(Friday through Monday)
Issued at 309 AM EDT Tue May 7 2024

Based on the consistency in the medium range guidance and ensemble systems, the pattern appears to transition to a wetter pattern this weekend and into next week as a cold front slides southward into Florida. With the frontal passage timing details are still a bit murky, so confidence in specifics remains low. Will have to closely monitor what appears to be a nocturnal MCS trailing across the northern Gulf coast region and into southern GA Thursday night into Friday ahead of the front. The materialization and trajectory of that MCS will dictate the environment and threat of severe t'storms with the frontal passage on Friday. Mostly dry conditions are expected over the weekend as the front stays south but chances increase early next week as that old front lifts back to the north as a warm front. Temperatures trend downward and fall below normal through at least Monday before warming up once again.

AVIATION
(06Z TAFS)
Issued at 215 AM EDT Tue May 7 2024

VFR conditions this morning and into the afternoon with lingering early morning fog developments dispersing by around midmorning.
Potential for diurnal convection with scattered showers and possible isolated thunderstorms forming along the east coast sea breeze this afternoon, affecting coastal sites and the Jax metro area between about 20z-00z. Winds will be primarily out of the SW through the forecast period with inland winds becoming more mild and variable overnight and into early Wednesday morning.|

AVIATION
(06Z TAFS)
Issued at 215 AM EDT Tue May 7 2024

VFR conditions this morning and into the afternoon with lingering early morning fog developments dispersing by around midmorning.
Potential for diurnal convection with scattered showers and possible isolated thunderstorms forming along the east coast sea breeze this afternoon, affecting coastal sites and the Jax metro area between about 20z-00z. Winds will be primarily out of the SW through the forecast period with inland winds becoming more mild and variable overnight and into early Wednesday morning.|

MARINE
Issued at 309 AM EDT Tue May 7 2024

High pressure ridge will gradually shift south and east through Thursday with breezy south winds expected at times. Offshore winds develop by Thursday night as a cold front approaches the region.
Evening southerly wind surges may lead to cautionary conditions for small craft each night until the cold front arrives by Friday night. Offshore winds will increase Friday ahead of a frontal passage. Brief period of strong northerly winds possible in the wake of the front Friday night into Saturday.

Rip Currents: Moderate risk for NE FL beaches today and Wednesday.
Moderate risk for SE GA beaches today with minor risk on Wednesday.

FIRE WEATHER
Issued at 309 AM EDT Tue May 7 2024

Isolated showers and perhaps a storm or two inspired by the sea breeze are possible this afternoon. After today, hotter and drier conditions prevail under a building ridge of high pressure Wednesday and Thursday before a late season cold front arrives Friday. Strengthening surface and transport winds from the southwest ahead of the front will build dispersion each day through Friday. High dispersions are expected areawide by Thursday and likely again Friday. A wetter pattern will kickoff with the frontal passage this weekend and should continue into next week.

CLIMATE
Issued at 331 PM EDT Mon May 6 2024

Daily record Maximum Temperatures at the local climate sites for...

Tuesday May 7th
JAX 94/1977
CRG 94/1977
GNV 96/1955
AMG 93/1962

Wednesday May 8th
JAX 96/1959
CRG 93/1977
GNV 97/1955
AMG 95/1962

Thursday May 9th
JAX 96/1962
CRG 93/2008
GNV 95/2011
AMG 95/1962

Friday May 10th
JAX 94/2017
CRG 95/2003
GNV 95/2011
AMG 95/2011

PRELIMINARY POINT TEMPS/POPS
AMG 91 68 93 69 / 0 0 10 0 SSI 86 70 90 71 / 10 0 0 0 JAX 92 68 95 71 / 10 10 0 0 SGJ 89 70 93 71 / 10 10 20 10 GNV 91 66 93 68 / 10 0 0 0 OCF 91 67 93 70 / 10 0 0 0

JAX WATCHES/WARNINGS/ADVISORIES
FL...None.
GA...None.
AM...None.

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Fernandina Beach
Click for Map
Tue -- 02:34 AM EDT     -0.33 feet Low Tide
Tue -- 06:02 AM EDT     Moonrise
Tue -- 06:36 AM EDT     Sunrise
Tue -- 08:52 AM EDT     6.68 feet High Tide
Tue -- 02:41 PM EDT     -0.65 feet Low Tide
Tue -- 07:58 PM EDT     Moonset
Tue -- 08:08 PM EDT     Sunset
Tue -- 09:20 PM EDT     8.00 feet High Tide
Tue -- 11:24 PM EDT     New Moon
Tide / Current data from XTide NOT FOR NAVIGATION

Fernandina Beach, Amelia River, Florida, Tide feet

St. Johns River Entrance
Click for Map
Tue -- 12:55 AM EDT     -2.68 knots Max Ebb
Tue -- 04:49 AM EDT     0.00 knots Slack
Tue -- 06:03 AM EDT     Moonrise
Tue -- 06:36 AM EDT     Sunrise
Tue -- 07:22 AM EDT     2.13 knots Max Flood
Tue -- 10:15 AM EDT     -0.00 knots Slack
Tue -- 01:00 PM EDT     -2.42 knots Max Ebb
Tue -- 04:36 PM EDT     0.01 knots Slack
Tue -- 07:35 PM EDT     3.08 knots Max Flood
Tue -- 07:57 PM EDT     Moonset
Tue -- 08:07 PM EDT     Sunset
Tue -- 10:48 PM EDT     -0.00 knots Slack
Tue -- 11:24 PM EDT     New Moon
Tide / Current data from XTide NOT FOR NAVIGATION

St. Johns River Entrance, Florida Current, knots

Full Color Weather Map

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