Coastal Waters Forecast
Issued by NWS Jacksonville, FL

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FZUS52 KJAX 101232
CWFJAX

Coastal Waters Forecast for Northeast Florida/Southeast Georgia
National Weather Service Jacksonville FL
732 AM EST Wed Dec 10 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.

AMZ400-110345-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
732 AM EST Wed Dec 10 2025

.SYNOPSIS...

West to northwest winds will strengthen later today and tonight as a
dry cold front moves across the area. Small Craft Advisory
conditions are expected to develop over the area waters tonight and
continue until Thursday morning. A high pressure center will build
into the area Thursday into Friday and then shift offshore by early
Saturday ahead of the next frontal boundary. This front will likely
remain dry as it crosses our local waters on Sunday night. Strong
high pressure building to the north of our region in the wake of
this frontal passage will result in strengthening northerly winds on
Sunday night that will shift to northeast on Monday. Small Craft
Advisory conditions are likely throughout our local waters from
Sunday night through Monday night.


.GULF STREAM...

The approximate location of the west wall of the Gulf Stream as of
Dec 06, 2025 at 1200 UTC...

 71 nautical miles east of Flagler Beach.
 74 nautical miles east of Saint Augustine Beach.
 85 nautical miles east southeast of Jacksonville Beach.
 97 nautical miles east southeast of St Simons Island.

This data courtesy of the Naval Oceanographic Office.


$$

AMZ450-452-454-110345-
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-
732 AM EST Wed Dec 10 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH
THURSDAY MORNING...

.REST OF TODAY...Northwest winds 5 to 10 knots, becoming west
10 to 15 knots this afternoon. Seas 3 to 4 feet, occasionally to
5 feet. Wave Detail: Northeast 4 feet at 10 seconds and west
2 feet at 3 seconds. Intracoastal waters a moderate chop.
.TONIGHT...West winds 15 to 20 knots. Seas 3 to 5 feet,
occasionally to 6 feet. Wave Detail: West 4 feet at 4 seconds and
east 4 feet at 10 seconds. Intracoastal waters choppy.
.THURSDAY...Northwest winds 15 to 20 knots, diminishing to 10 to
15 knots in the afternoon. Seas 3 to 5 feet, occasionally to
6 feet. Wave Detail: Northwest 4 feet at 4 seconds and east
3 feet at 10 seconds. Intracoastal waters choppy.
.THURSDAY NIGHT...Northwest winds 5 to 10 knots. Seas 2 to
3 feet. Wave Detail: Northwest 2 feet at 4 seconds and east
2 feet at 9 seconds. Intracoastal waters light chop.
.FRIDAY AND FRIDAY NIGHT...West winds 5 to 10 knots. Seas around
2 feet. Wave Detail: North 2 feet at 4 seconds and northeast
2 feet at 8 seconds. Intracoastal waters light chop.
.SATURDAY...Northwest winds around 5 knots, becoming southwest.
Seas around 2 feet in the morning, then 1 foot or less.
Intracoastal waters smooth.
.SUNDAY...Northwest winds 5 to 10 knots, becoming north 20 to
25 knots. Seas 2 to 4 feet, occasionally to 5 feet, building to
4 to 6 feet, occasionally to 8 feet after midnight. Intracoastal
waters rough.

$$

AMZ470-472-474-110345-
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-
732 AM EST Wed Dec 10 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 7 PM EST THIS EVENING
THROUGH THURSDAY MORNING...

.REST OF TODAY...Northwest winds 5 to 10 knots, becoming west
10 to 15 knots this afternoon. Seas 4 to 5 feet, occasionally to
6 feet. Wave Detail: Northeast 5 feet at 10 seconds and west
2 feet at 3 seconds.
.TONIGHT...West winds 20 to 25 knots. Seas 5 to 7 feet,
occasionally to 9 feet. Wave Detail: West 6 feet at 5 seconds and
northeast 5 feet at 10 seconds.
.THURSDAY...Northwest winds 15 to 20 knots, diminishing to 10 to
15 knots in the afternoon. Seas 5 to 7 feet, occasionally to
9 feet, subsiding to 3 to 5 feet, occasionally to 6 feet in the
afternoon. Wave Detail: Northwest 6 feet at 5 seconds and east
3 feet at 10 seconds, becoming northwest 4 feet at 5 seconds and
east 3 feet at 9 seconds.
.THURSDAY NIGHT...Northwest winds 10 to 15 knots, diminishing to
5 to 10 knots after midnight. Seas 2 to 4 feet, occasionally to
5 feet. Wave Detail: Northwest 3 feet at 5 seconds and east
2 feet at 9 seconds.
.FRIDAY AND FRIDAY NIGHT...West winds 10 to 15 knots. Seas 2 to
3 feet. Wave Detail: Northwest 2 feet at 4 seconds and east
2 feet at 9 seconds.
.SATURDAY...Northwest winds 5 to 10 knots, becoming southwest.
Seas around 2 feet. Wave Detail: West 2 feet at 3 seconds and
southeast 2 feet at 8 seconds.
.SUNDAY...Northwest winds 10 to 15 knots, becoming north 20 to
25 knots. Seas 2 to 3 feet, building to 5 to 7 feet, occasionally
to 9 feet. A slight chance of showers after midnight.

$$