827
FZUS52 KJAX 061120
CWFJAX

Coastal Waters Forecast for Northeast Florida/Southeast Georgia
National Weather Service Jacksonville FL
720 AM EDT Sat Sep 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.

AMZ400-070230-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
720 AM EDT Sat Sep 6 2025

.SYNOPSIS...

Onshore flow pattern continues as a weak warm front lifts north and
stalls across the northeast Florida and coastal waters through
tonight. A cold front will approach from the north as the stalled
warm front morphs into a coastal trough on Sunday, increasing rain
and thunderstorm chances over the waters. By Monday, the cold front
reach the Georgia waters and send a surge of northeasterly winds
southward down the coast. A period of small craft advisory
conditions are possible Monday and Tuesday with gradually weakening
northeasterly winds Wednesday onward. The front will continue toward
south Florida through the week with a reinforcing front pushing
towards the local waters by next weekend.


.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.


$$

AMZ450-452-454-070230-
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-
720 AM EDT Sat Sep 6 2025

.TODAY...East 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 slight chance of thunderstorms.
A slight chance of showers this morning, then a chance of showers
this afternoon.
.TONIGHT...Southeast winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: 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 10 to
15 knots in the afternoon. Seas 2 to 3 feet. Wave Detail:
Northeast 2 feet at 4 seconds and east 2 feet at 8 seconds.
Intracoastal waters a moderate chop. A chance of showers. A
slight chance of thunderstorms in the morning, then a chance of
thunderstorms in the afternoon.
.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 4 seconds and east 2 feet at 7 seconds.
Intracoastal waters a moderate chop. A chance of showers and
thunderstorms.
.MONDAY...Northeast winds 15 to 20 knots. Seas 3 to 5 feet,
occasionally to 6 feet. Wave Detail: Northeast 4 feet at
5 seconds and east 2 feet at 9 seconds. Intracoastal waters
choppy. Showers. A chance of thunderstorms in the morning, then
thunderstorms likely in the afternoon.
.MONDAY NIGHT...Northeast winds 15 to 20 knots. Seas 3 to 5 feet,
occasionally to 6 feet. Wave Detail: Northeast 4 feet at
5 seconds and east 2 feet at 9 seconds. Intracoastal waters
choppy. A chance of thunderstorms. Showers.
.TUESDAY THROUGH WEDNESDAY...Northeast winds 15 to 20 knots. Seas
3 to 5 feet, occasionally to 6 feet. Intracoastal waters choppy.
Showers with a chance of thunderstorms.

Winds and waves higher in and near thunderstorms.

$$

AMZ470-472-474-070230-
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-
720 AM EDT Sat Sep 6 2025

.TODAY...East winds around 10 knots. Seas 2 to 3 feet. Wave
Detail: Northeast 2 feet at 3 seconds and east 2 feet at
8 seconds. A chance of showers. A slight chance of thunderstorms.
.TONIGHT...Southeast 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. A
slight chance of thunderstorms.
.SUNDAY...Northwest winds 5 to 10 knots, becoming northeast in
the afternoon. Seas 2 to 3 feet. Wave Detail: Northeast 2 feet at
3 seconds and east 2 feet at 8 seconds. Showers likely with a
chance of thunderstorms in the morning, then a chance of showers
and thunderstorms in the afternoon.
.SUNDAY NIGHT...East winds 5 to 10 knots, becoming northeast
10 to 15 knots 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 thunderstorms. A chance of showers in the evening, then
showers likely after midnight.
.MONDAY...Northeast winds 10 to 15 knots, increasing to 15 to
20 knots in the afternoon. Seas 2 to 4 feet, occasionally to
5 feet. Wave Detail: Northeast 4 feet at 5 seconds and east
2 feet at 9 seconds. Showers. A chance of thunderstorms in the
morning, then thunderstorms likely in the afternoon.
.MONDAY NIGHT...Northeast winds 15 to 20 knots, diminishing to
10 to 15 knots after midnight. Seas 3 to 5 feet, occasionally to
6 feet. Wave Detail: Northeast 4 feet at 7 seconds. Showers with
a chance of thunderstorms.
.TUESDAY THROUGH WEDNESDAY...Northeast winds 10 to 15 knots. Seas
3 to 5 feet, occasionally to 6 feet. Showers with a chance of
thunderstorms.

Winds and seas higher in and near thunderstorms.

$$