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FZUS52 KJAX 051704
CWFJAX

Coastal Waters Forecast for Northeast Florida/Southeast Georgia
National Weather Service Jacksonville FL
104 PM EDT Fri Sep 5 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.

AMZ400-060815-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
104 PM EDT Fri Sep 5 2025

.SYNOPSIS...

Onshore flow continues between a ridge of high pressure and a
leftover frontal trough laying across southern Florida. An
approaching cold front will send a surge of northeasterly winds
southward down the coast through Monday. Prolonged small craft
advisory conditions are possible throughout next week as strong high
pressure and a coastal trough maintain and potentially enhance gusty
northeasterly winds and elevate seas.


.GULF STREAM...

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

 57 nautical miles east of Flagler Beach.
 66 nautical miles east of Saint Augustine Beach.
 75 nautical miles east of Jacksonville Beach.
 88 nautical miles east of St Simons Island.

This data courtesy of the Naval Oceanographic Office.


$$

AMZ450-452-454-060815-
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-
104 PM EDT Fri Sep 5 2025

.REST OF TODAY...Northeast winds 10 to 15 knots. Seas 2 to
3 feet. Wave Detail: Northeast 3 feet at 4 seconds and east
2 feet at 8 seconds. Intracoastal waters a moderate chop.
.TONIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: East 3 feet at 4 seconds and east 2 feet at 9 seconds.
Intracoastal waters light chop.
.SATURDAY...Northeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: Northeast 2 feet at 4 seconds and east 2 feet at
8 seconds. Intracoastal waters light chop. A chance of showers. A
slight chance of thunderstorms in the morning, then a chance of
thunderstorms in the afternoon.
.SATURDAY NIGHT...Southeast winds 5 to 10 knots, becoming
southwest after midnight. Seas 2 to 3 feet. Wave Detail:
Northeast 2 feet at 4 seconds and east 2 feet at 8 seconds.
Intracoastal waters light chop. A slight chance of thunderstorms.
A slight chance of showers in the evening, then a chance of
showers after midnight.
.SUNDAY...North winds 5 to 10 knots, becoming northeast in the
afternoon. Seas around 2 feet. Wave Detail: Northeast 2 feet at
4 seconds and east 2 feet at 8 seconds. Intracoastal waters light
chop. A chance of showers and thunderstorms.
.SUNDAY NIGHT...East winds 5 to 10 knots, becoming northeast
10 to 15 knots after midnight. Seas around 2 feet. Wave Detail:
Northeast 2 feet at 3 seconds and southeast 2 feet at 8 seconds.
Intracoastal waters a moderate chop. A slight chance of
thunderstorms. A slight chance of showers in the evening, then a
chance of showers after midnight.
.MONDAY...Northeast winds 15 to 20 knots, increasing to 20 to
25 knots. Seas 3 to 5 feet, occasionally to 6 feet. Intracoastal
waters rough. Showers likely with a chance of thunderstorms.
.TUESDAY...Northeast winds 20 to 25 knots, diminishing to 15 to
20 knots. Seas 4 to 6 feet, occasionally to 8 feet. Intracoastal
waters rough. A chance of thunderstorms in the morning. Showers
likely through the day. Thunderstorms likely in the afternoon,
then a chance of showers and thunderstorms in the evening.
Showers likely with a slight chance of thunderstorms after
midnight.

Winds and waves higher in and near thunderstorms.

$$

AMZ470-472-474-060815-
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-
104 PM EDT Fri Sep 5 2025

.REST OF TODAY...Northeast winds 10 to 15 knots. Seas 2 to
4 feet, occasionally to 5 feet. Wave Detail: Northeast 3 feet at
4 seconds and east 2 feet at 8 seconds.
.TONIGHT...East winds 10 to 15 knots, becoming northeast 5 to
10 knots after midnight. Seas 2 to 4 feet, occasionally to
5 feet. Wave Detail: Northeast 3 feet at 4 seconds and east
2 feet at 9 seconds. A slight chance of showers after midnight.
.SATURDAY...Northeast winds around 10 knots. Seas 2 to 3 feet.
Wave Detail: Northeast 2 feet at 4 seconds and east 2 feet at
8 seconds. A chance of showers. A slight chance of thunderstorms
in the morning, then a chance of thunderstorms in the afternoon.
.SATURDAY NIGHT...East winds 5 to 10 knots, becoming south after
midnight. Seas 2 to 3 feet. Wave Detail: Northeast 2 feet at
4 seconds and east 2 feet at 8 seconds. A chance of showers and
thunderstorms.
.SUNDAY AND SUNDAY NIGHT...Northeast winds 10 to 15 knots. Seas
2 to 3 feet. Wave Detail: Northeast 2 feet at 4 seconds and east
2 feet at 8 seconds. A chance of showers and thunderstorms.
.MONDAY...Northeast winds 15 to 20 knots. Seas 4 to 6 feet,
occasionally to 8 feet. Wave Detail: Northeast 5 feet at
5 seconds and northeast 5 feet at 8 seconds. A chance of
thunderstorms through the day. Showers. Thunderstorms likely in
the evening, then a chance of thunderstorms after midnight.
.TUESDAY...Northeast winds 15 to 20 knots. Seas 4 to 6 feet,
occasionally to 8 feet. A chance of thunderstorms in the morning.
Showers. Thunderstorms likely in the afternoon, then a chance of
thunderstorms through the night.

Winds and seas higher in and near thunderstorms.

$$