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St. Augustine, FL - City Dock Coastal Forecast

FZUS52 KJAX 291729
CWFJAX

Coastal Waters Forecast for Northeast Florida/Southeast Georgia
National Weather Service Jacksonville FL
1229 PM EST Mon Dec 29 2025

Atlantic Coastal Waters from Altamaha Sound GA to Flagler Beach
FL out to 60 nm.

Seas are provided as a range of the average height of the highest
1/3 of the waves, along with the occasional height of the average
highest 1/10 of the waves.

AMZ400-300800-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
1229 PM EST Mon Dec 29 2025

.SYNOPSIS...

A cold front will move southeast of area waters this evening, with
strong high pressure building behind it. Conditions will be elevated
into Tuesday, due to gradient between front and building high. The
high will remain centered to the west through Wednesday, then build
overhead Thursday. The high will move off to the southeast Friday,
as an area of low pressure gathers over the northwestern Gulf. An
area of low pressure will move over region over the weekend.


.GULF STREAM...

The approximate location of the west wall of the Gulf Stream as of
Dec 29, 2025 at 0000 UTC...

54 nautical miles east of Flagler Beach.
58 nautical miles east of Saint Augustine Beach.
70 nautical miles east southeast of Jacksonville Beach.
76 nautical miles east southeast of St Simons Island.

This data derived from NCEP Global RTOFS model.


$$

AMZ450-300800-
Coastal waters from Altamaha Sound to Fernandina Beach FL out
20 NM-
1229 PM EST Mon Dec 29 2025

...SMALL CRAFT EXERCISE CAUTION IN EFFECT UNTIL 7 PM EST THIS
EVENING...
...SMALL CRAFT ADVISORY IN EFFECT FROM 7 PM EST THIS EVENING
THROUGH TUESDAY MORNING...

.REST OF TODAY...West winds 15 to 20 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Wave Detail: Southwest 3 feet at
4 seconds and east 2 feet at 12 seconds. Intracoastal waters
choppy. A chance of showers this afternoon.
.TONIGHT...Northwest winds 20 to 25 knots, diminishing to 15 to
20 knots after midnight. Seas 3 to 5 feet, occasionally to
6 feet. Wave Detail: Northwest 4 feet at 4 seconds and east
2 feet at 12 seconds. Intracoastal waters rough.
.TUESDAY...Northwest winds 15 to 20 knots, diminishing to around
10 knots in the afternoon. Seas 2 to 4 feet, occasionally to
5 feet. Wave Detail: Northwest 4 feet at 4 seconds and northeast
2 feet at 10 seconds. Intracoastal waters choppy.
.TUESDAY NIGHT...Northwest winds 10 to 15 knots. Seas 2 to
3 feet. Wave Detail: Northwest 2 feet at 3 seconds and northeast
2 feet at 8 seconds. Intracoastal waters a moderate chop.
.WEDNESDAY AND WEDNESDAY NIGHT...West winds 10 to 15 knots. Seas
2 to 3 feet. Wave Detail: Northwest 2 feet at 3 seconds and
northeast 2 feet at 8 seconds. Intracoastal waters a moderate
chop.
.THURSDAY...West winds 10 to 15 knots. Seas around 2 feet. Wave
Detail: West 2 feet at 3 seconds. Intracoastal waters a moderate
chop.
.FRIDAY...Southwest winds 5 to 10 knots, increasing to 10 to
15 knots. Seas around 2 feet in the morning, then 1 foot or less,
then, then around 2 feet after midnight. Intracoastal waters a
moderate chop. A slight chance of showers after midnight.

$$

AMZ452-454-300800-
Coastal waters from Fernandina Beach to St. Augustine FL out
20 NM-
Coastal waters from St. Augustine to Flagler Beach FL out 20 NM-
1229 PM EST Mon Dec 29 2025

...SMALL CRAFT EXERCISE CAUTION IN EFFECT UNTIL 7 PM EST THIS
EVENING...
...SMALL CRAFT ADVISORY IN EFFECT FROM 7 PM EST THIS EVENING
THROUGH TUESDAY AFTERNOON...

.REST OF TODAY...West winds 15 to 20 knots. Seas 3 to 5 feet,
occasionally to 6 feet. Wave Detail: Southwest 3 feet at
3 seconds and east 3 feet at 12 seconds. Intracoastal waters
choppy. A chance of showers this afternoon.
.TONIGHT...Northwest winds 20 to 25 knots. Seas 5 to 7 feet,
occasionally to 9 feet. Wave Detail: Northwest 6 feet at
5 seconds and northeast 3 feet at 12 seconds. Intracoastal waters
rough.
.TUESDAY...Northwest winds 20 to 25 knots, diminishing to 10 to
15 knots in the afternoon. Seas 4 to 6 feet, occasionally to
8 feet. Wave Detail: North 6 feet at 6 seconds and northeast
2 feet at 11 seconds. Intracoastal waters rough.
.TUESDAY NIGHT...Northwest winds 15 to 20 knots. Seas 3 to
4 feet, occasionally to 5 feet. Wave Detail: North 4 feet at
6 seconds and northeast 2 feet at 10 seconds. Intracoastal waters
choppy.
.WEDNESDAY AND WEDNESDAY NIGHT...West winds 15 to 20 knots. Seas
2 to 4 feet, occasionally to 5 feet. Wave Detail: North 4 feet at
5 seconds and northeast 2 feet at 10 seconds. Intracoastal waters
choppy.
.THURSDAY THROUGH FRIDAY...Southwest winds 15 to 20 knots. Seas
2 to 3 feet. Wave Detail: Northwest 3 feet at 4 seconds.
Intracoastal waters choppy.

$$

AMZ470-472-474-300800-
Waters from Altamaha Sound GA to Fernandina Beach FL from 20 to
60 NM-
Waters from Fernandina Beach to St. Augustine FL from 20 to 60 NM-
Waters from St. Augustine to Flagler Beach FL from 20 to 60 NM-
1229 PM EST Mon Dec 29 2025

...SMALL CRAFT EXERCISE CAUTION IN EFFECT UNTIL 4 PM EST THIS
AFTERNOON...
...SMALL CRAFT ADVISORY IN EFFECT FROM 4 PM EST THIS AFTERNOON
THROUGH TUESDAY AFTERNOON...

.REST OF TODAY...Southwest winds 15 to 20 knots, becoming west
20 to 25 knots this afternoon. Seas 4 to 6 feet, occasionally to
8 feet. Wave Detail: Southwest 5 feet at 5 seconds and northeast
4 feet at 12 seconds. A chance of showers this afternoon.
.TONIGHT...Northwest winds 20 to 25 knots. Seas 5 to 8 feet,
occasionally to 10 feet. Wave Detail: Northwest 7 feet at
6 seconds and northeast 3 feet at 11 seconds.
.TUESDAY...Northwest winds 15 to 20 knots. Seas 5 to 7 feet,
occasionally to 9 feet. Wave Detail: Northwest 6 feet at
6 seconds and northeast 2 feet at 10 seconds.
.TUESDAY NIGHT...Northwest winds 15 to 20 knots. Seas 3 to
5 feet, occasionally to 6 feet. Wave Detail: Northwest 4 feet at
5 seconds and northeast 2 feet at 11 seconds.
.WEDNESDAY AND WEDNESDAY NIGHT...West winds 15 to 20 knots. Seas
3 to 5 feet, occasionally to 6 feet. Wave Detail: Northwest
4 feet at 5 seconds and northeast 2 feet at 8 seconds.
.THURSDAY...West winds 15 to 20 knots. Seas 3 to 5 feet,
occasionally to 6 feet. Wave Detail: Northwest 4 feet at
5 seconds.
.FRIDAY...West winds 10 to 15 knots, becoming southwest 15 to
20 knots. Seas 2 to 4 feet, occasionally to 5 feet. A slight
chance of showers after midnight.

$$



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