Sunrise 6:25 AM   Sunset 8:20 PM Moonrise 5:48 PM   Moonset 4:00 AM

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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- 824 Pm Edt Tue May 21 2024
Rest of tonight - Northeast winds 10 to 15 knots, becoming east 5 to 10 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave detail: northeast 4 feet at 8 seconds. Intracoastal waters a moderate chop. Wednesday - East winds 5 to 10 knots. Seas 2 to 3 feet. Wave detail: northeast 3 feet at 7 seconds. Intracoastal waters light chop. Wednesday night - Southeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave detail: east 3 feet at 7 seconds. Intracoastal waters light chop. Thursday - Southeast winds 5 to 10 knots. Seas around 2 feet. Wave detail: east 2 feet at 9 seconds. Intracoastal waters light chop. Thursday night and Friday - Southeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave detail: southeast 2 feet at 3 seconds and east 2 feet at 9 seconds. Intracoastal waters a moderate chop. Friday night - South winds 10 to 15 knots. Seas 2 to 3 feet. Wave detail: southeast 2 feet at 4 seconds. Intracoastal waters a moderate chop. Saturday through Sunday - Southwest winds 5 to 10 knots. Seas 2 to 3 feet. Intracoastal waters light chop.

AMZ400 Synopsis For Altamaha Sound Ga To Flagler Beach Fl Out To 60 Nm- 824 Pm Edt Tue May 21 2024
Synopsis -
northeasterly flow continues today, shifting to being more south to southeast by Thursday as high pressure moves off the atlantic coast. Winds will shift from the southwest in the morning to the southeast in the afternoon each day into the beginning of next week. NExt best chance for coastal showers looks to be this afternoon and next Tuesday.
Gulf stream -
the approximate location of the west wall of the gulf stream as of may 18, 2024 at 1200 utc - .
64 nautical miles east of flagler beach. 73 nautical miles east of saint augustine beach. 82 nautical miles east of jacksonville beach. 101 nautical miles east southeast of st simons island.
this data courtesy of the naval oceanographic office.

FXUS62 KJAX 220025 AFDJAX

Area Forecast Discussion National Weather Service Jacksonville FL 825 PM EDT Tue May 21 2024

New UPDATE

UPDATE
Issued at 825 PM EDT Tue May 21 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

Forecast remains on track through tonight and into Wednesday morning with patchy to locally dense areas of fog developing in the early morning hours on Wednesday.

NEAR TERM
Issued at 137 PM EDT Tue May 21 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

Rest of this afternoon/evening...Forecast remains on track with near term model guidance still suggesting that a combination of coastal trough moving onshore and East coast sea breeze development an inland push through the afternoon hours will kick off scattered showers and potential isolated thunderstorms across NE FL, mainly south of the I-10 corridor. PWATs already around 1 inch or so and expected to increase closer to 1.5 inches as the sea breeze and mid level impulse push onshore through the day. Max temps at or slightly below normal levels with highs in the 80s for most locations. Breezy Northeast winds will expected at the coast in the 15-20G25-30 mph range with 10-15G20 mph winds expected further inland.

Tonight...Rainfall chances will fade quickly around sunset with the loss of daytime heating with skies becoming mostly clear overnight and lows expected in the 60s inland and near 70 along the coast. Patchy to areas of fog expected towards sunrise with locally dense fog possible over inland areas, mainly along the I-10 corridor northward across inland SE GA.

SHORT TERM
(Wednesday through Thursday night)
Issued at 137 PM EDT Tue May 21 2024

High pressure along the east coast continues the onshore wind flow, allowing the sea-breeze to make its way in just east of the 301 corridor. An upper level ridge moves in from the west, bringing drier conditions to the region. Mostly clear skies will allow temperatures to warm up into the upper 80s to low 90s with temperatures in the low to mid 80s along the coast. overnight temperatures will be in the mid to upper 60s, low 70s along the coast with chances of patchy fog for SE GA.

Thursday, another dry day with winds beginning to shift to the southeast in the morning becoming southwest in the afternoon as central high surface pressure slowly makes its way off the Atlantic coast. The sea-breeze will again make its way inland with windier conditions of 8-9mph sticking closer to the coast. Daytime temperatures will be in the low 90s area wide with temperatures in the mid to upper 80s along the coast. Thursday night, mostly clear skies with temperatures in the upper 60s to low 70s.

LONG TERM
(Friday through next Tuesday)
Issued at 137 PM EDT Tue May 21 2024

Upper level ridging sticks around for the forecast period with surface ridging slowly weakens into the beginning of next week.
Local troughing caused by the sea-breeze could bring some afternoon and evening showers with isolated thunderstorms into the weekend. Temperatures will stick around the low to mid 90s with overnight temperatures in the low 70s.

AVIATION
(00Z TAFS)
Issued at 739 PM EDT Tue May 21 2024

Winds will become more mild and variable this evening through overnight with low level clouds and patchy fog developing in over the region between about 08z to 12z with denser developments occurring further inland. Winds will redevelop from out of the NE-E on Wednesday.

MARINE
Issued at 329 AM EDT Tue May 21 2024

Northeasterly flow will decrease some Today and Wednesday with high pressure shifting southward off the east coast. As the high shifts well E of the forecast area Thursday through Saturday, winds will become more southerly across the waters. Wind speeds are expected to be 5-10 kts with 2-3 ft seas Thursday through Saturday.

.Rip Currents: Moderate Risk Today and Wednesday.

PRELIMINARY POINT TEMPS/POPS
AMG 62 89 67 92 / 0 0 0 0 SSI 70 83 71 86 / 0 0 0 0 JAX 66 87 67 91 / 10 0 0 0 SGJ 69 85 69 88 / 10 0 0 0 GNV 65 90 66 92 / 10 10 0 10 OCF 67 91 68 93 / 10 0 0 10

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

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Bailey Cut
Click for Map
Tue -- 02:59 AM EDT     1.13 feet Low Tide
Tue -- 05:00 AM EDT     Moonset
Tue -- 06:27 AM EDT     Sunrise
Tue -- 08:07 AM EDT     6.72 feet High Tide
Tue -- 02:53 PM EDT     0.88 feet Low Tide
Tue -- 06:47 PM EDT     Moonrise
Tue -- 08:18 PM EDT     Sunset
Tue -- 08:39 PM EDT     7.89 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION

Bailey Cut, 0.8 mile west of, Satilla River, Georgia, Tide feet

St. Johns River Entrance
Click for Map
Tue -- 12:39 AM EDT     -1.65 knots Max Ebb
Tue -- 04:48 AM EDT     0.00 knots Slack
Tue -- 05:00 AM EDT     Moonset
Tue -- 06:27 AM EDT     Sunrise
Tue -- 07:07 AM EDT     1.74 knots Max Flood
Tue -- 09:57 AM EDT     -0.00 knots Slack
Tue -- 12:30 PM EDT     -1.72 knots Max Ebb
Tue -- 04:26 PM EDT     0.00 knots Slack
Tue -- 06:46 PM EDT     Moonrise
Tue -- 07:27 PM EDT     2.48 knots Max Flood
Tue -- 08:18 PM EDT     Sunset
Tue -- 10:40 PM EDT     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION

St. Johns River Entrance, Florida Current (3), knots

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