718
FZUS52 KJAX 060529
CWFJAX

Coastal Waters Forecast for Northeast Florida/Southeast Georgia
National Weather Service Jacksonville FL
1229 AM EST Sat Dec 6 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.

AMZ400-062000-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
1229 AM EST Sat Dec 6 2025

.SYNOPSIS...

A frontal boundary will stall south of the forecast waters today and
into tonight. A wave of low pressure will then develop along
this front just south of the northeast Florida waters late
tonight with widespread rainfall and a few embedded thunderstorms
overspreading our local waters early Sunday into Sunday night.
Low pressure will move offshore on Sunday night, resulting in
strengthening northwest winds. High pressure will then build
over the southeast states early next week, creating strengthening
northerly winds and Small Craft Advisory conditions from Monday
through Tuesday evening.


.GULF STREAM...

The approximate location of the west wall of the Gulf Stream as of
Dec 04, 2025 at 1200 UTC...

 66 nautical miles east northeast of Flagler Beach.
 73 nautical miles east of Saint Augustine Beach.
 85 nautical miles east southeast of Jacksonville Beach.
 94 nautical miles east of St Simons Island.

This data courtesy of the Naval Oceanographic Office.


$$

AMZ450-452-454-062000-
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-
1229 AM EST Sat Dec 6 2025

...SMALL CRAFT EXERCISE CAUTION IN EFFECT FROM THIS AFTERNOON
THROUGH THIS EVENING...

.REST OF TONIGHT...Northwest winds 5 to 10 knots. Seas 2 to
3 feet. Wave Detail: East 3 feet at 10 seconds and southeast
2 feet at 5 seconds. Intracoastal waters light chop. A slight
chance of showers late this evening.
.SATURDAY...Northwest winds 5 to 10 knots, becoming north 15 to
20 knots in the afternoon. Seas 2 to 4 feet, occasionally to
5 feet. Wave Detail: North 3 feet at 4 seconds and east 3 feet at
10 seconds. Intracoastal waters choppy. Patchy fog in the
morning. A slight chance of showers in the morning, then a chance
of showers in the afternoon.
.SATURDAY NIGHT...North winds 15 to 20 knots, becoming northeast
5 to 10 knots after midnight. Seas 3 to 5 feet, occasionally to
6 feet. Wave Detail: Northeast 4 feet at 8 seconds and north
3 feet at 5 seconds. Intracoastal waters choppy. A chance of
showers in the evening, then showers likely after midnight.
.SUNDAY...Northeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: Northeast 3 feet at 8 seconds. Intracoastal waters light
chop. Showers likely in the morning, then showers with a slight
chance of thunderstorms in the afternoon.
.SUNDAY NIGHT...North winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: Northeast 3 feet at 9 seconds. Intracoastal waters light
chop. Showers likely in the evening, then a chance of showers
with a slight chance of thunderstorms after midnight.
.MONDAY...North winds 10 to 15 knots, increasing to 20 to
25 knots in the afternoon. Seas 3 to 5 feet, occasionally to
6 feet. Wave Detail: Northeast 4 feet at 8 seconds and north
3 feet at 4 seconds. Intracoastal waters rough. A slight chance
of showers in the morning.
.MONDAY NIGHT...North winds 20 to 25 knots. Seas 5 to 7 feet,
occasionally to 9 feet. Intracoastal waters rough.
.TUESDAY...North winds 15 to 20 knots, diminishing to 10 to
15 knots. Seas 4 to 6 feet, occasionally to 8 feet. Intracoastal
waters choppy.
.WEDNESDAY...West winds 5 to 10 knots. Seas 3 to 5 feet,
occasionally to 6 feet. Intracoastal waters light chop.

Winds and waves higher in and near thunderstorms.

$$

AMZ470-472-474-062000-
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 AM EST Sat Dec 6 2025

...SMALL CRAFT EXERCISE CAUTION IN EFFECT FROM THIS AFTERNOON
THROUGH THIS EVENING...

.REST OF TONIGHT...Northwest winds 10 to 15 knots, diminishing to
5 to 10 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave
Detail: West 3 feet at 5 seconds and east 3 feet at 10 seconds. A
slight chance of showers late this evening.
.SATURDAY...Northwest winds 5 to 10 knots, increasing to 15 to
20 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. A slight chance of showers in the morning,
then a chance of showers in the afternoon.
.SATURDAY NIGHT...North winds 15 to 20 knots, becoming northeast
5 to 10 knots after midnight. Seas 3 to 5 feet, occasionally to
6 feet. Wave Detail: North 4 feet at 5 seconds and east 3 feet at
10 seconds. A chance of showers in the evening, then showers
likely after midnight.
.SUNDAY...Northeast winds 5 to 10 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Wave Detail: Northeast 4 feet at
9 seconds. A slight chance of thunderstorms. Showers.
.SUNDAY NIGHT...North winds 10 to 15 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Wave Detail: Northeast 4 feet at
9 seconds. Showers in the evening, then a chance of showers with
a slight chance of thunderstorms after midnight.
.MONDAY...Northwest winds 10 to 15 knots, becoming north 15 to
20 knots in the afternoon. Seas 3 to 5 feet, occasionally to
6 feet. Wave Detail: North 5 feet at 5 seconds and east 4 feet at
9 seconds. A slight chance of showers in the morning.
.MONDAY NIGHT...North winds 20 to 25 knots, diminishing to 15 to
20 knots after midnight. Seas 5 to 7 feet, occasionally to
9 feet.
.TUESDAY...North winds 10 to 15 knots. Seas 5 to 7 feet,
occasionally to 9 feet.
.WEDNESDAY...West winds 10 to 15 knots. Seas 4 to 6 feet,
occasionally to 8 feet.

Winds and seas higher in and near thunderstorms.

$$