548
FZUS52 KJAX 010402
CWFJAX

Coastal Waters Forecast for Northeast Florida/Southeast Georgia
National Weather Service Jacksonville FL
1202 AM EDT Tue Sep 1 2026

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.

AMZ400-011915-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
1202 AM EDT Tue Sep 1 2026

.SYNOPSIS...

Weak coastal troughing remaining situated over the local waters
through mid week. Onshore winds will prevail through Saturday,
followed by winds shifting to westerly by Saturday Night into Sunday
as a frontal boundary enters the southeast states. Several rounds of
showers and thunderstorms are possible during the upcoming weekend
ahead of this frontal boundary.


.GULF STREAM...

The approximate location of the west wall of the Gulf Stream as of
Aug 31, 2026 at 0000 UTC...

 46 nautical miles east of Flagler Beach.
 49 nautical miles east of Saint Augustine Beach.
 60 nautical miles east southeast of Jacksonville Beach.
 71 nautical miles east southeast of St Simons Island.

This data derived from NCEP Global RTOFS model.


$$

AMZ450-452-454-011915-
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-
1202 AM EDT Tue Sep 1 2026

.REST OF TONIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet.
Wave Detail: East 3 feet at 8 seconds. Intracoastal waters a
moderate chop. A chance of showers with a slight chance of
thunderstorms.
.WEDNESDAY...East winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: East 3 feet at 12 seconds and east 2 feet at 8 seconds.
Intracoastal waters light chop. A chance of showers and
thunderstorms.
.WEDNESDAY NIGHT...Southeast winds 5 to 10 knots. Seas around
3 feet. Wave Detail: East 3 feet at 11 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.
.THURSDAY...Southeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: East 3 feet at 10 seconds. Intracoastal waters light
chop. A slight chance of thunderstorms. A chance of showers,
mainly in the morning.
.THURSDAY NIGHT AND FRIDAY...Southeast winds 5 to 10 knots. Seas
2 to 3 feet. Wave Detail: East 3 feet at 9 seconds. Intracoastal
waters light chop. A slight chance of showers and thunderstorms.
.FRIDAY NIGHT...South winds 5 to 10 knots, becoming southwest
after midnight. Seas around 2 feet. Wave Detail: Southeast 2 feet
at 8 seconds. Intracoastal waters light chop.
.SATURDAY...Southwest winds 5 to 10 knots. Seas around 2 feet.
Intracoastal waters light chop. A slight chance of showers and
thunderstorms.
.SUNDAY...Southeast winds 5 to 10 knots. Seas around 2 feet.
Intracoastal waters light chop. A slight chance of showers and
thunderstorms in the morning, then a chance of showers and
thunderstorms through the night. A slight chance of showers and
thunderstorms after midnight.

Winds and waves higher in and near thunderstorms.

$$

AMZ470-472-474-011915-
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-
1202 AM EDT Tue Sep 1 2026

.REST OF TONIGHT...Southeast winds 5 to 10 knots. Seas 2 to
4 feet, occasionally to 5 feet. Wave Detail: East 3 feet at
8 seconds and northeast 2 feet at 7 seconds. Thunderstorms likely
with a chance of showers.
.WEDNESDAY...East winds 5 to 10 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Wave Detail: East 4 feet at 11 seconds. A
chance of showers and thunderstorms.
.WEDNESDAY NIGHT...Southeast winds 5 to 10 knots. Seas 3 to
4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at
10 seconds. A slight chance of showers and thunderstorms in the
evening, then a chance of showers and thunderstorms after
midnight.
.THURSDAY...Southeast winds 5 to 10 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Wave Detail: East 3 feet at 10 seconds. A
chance of thunderstorms. Showers likely, mainly in the morning.
.THURSDAY NIGHT...Southeast winds 5 to 10 knots. Seas around
3 feet. Wave Detail: Southeast 3 feet at 9 seconds. A slight
chance of showers and thunderstorms.
.FRIDAY...Southeast winds around 5 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 3 feet at 8 seconds. A chance of showers and
thunderstorms in the morning.
.FRIDAY NIGHT...South winds 5 to 10 knots, becoming southwest
after midnight. Seas around 2 feet.
.SATURDAY...Southwest winds 5 to 10 knots. Seas around 2 feet. A
slight chance of showers and thunderstorms in the morning. A
slight chance of showers and thunderstorms after midnight.
.SUNDAY...Southwest winds 5 to 10 knots, becoming south. Seas
2 to 3 feet. A chance of showers and thunderstorms.

Winds and seas higher in and near thunderstorms.

$$