866
FZUS52 KJAX 090031
CWFJAX

Coastal Waters Forecast for Northeast Florida/Southeast Georgia
National Weather Service Jacksonville FL
831 PM EDT Fri Aug 8 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.

AMZ400-091545-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
831 PM EDT Fri Aug 8 2025

.SYNOPSIS...

A nearly stationary frontal boundary will be over the area through
tonight. An area of low pressure may briefly develop along this
boundary near the southeastern U.S. coast on Saturday. This low
may result in a brief increase in east winds and building seas
over the weekend. High pressure will build to the northeast next
week.

.GULF STREAM...

The approximate location of the west wall of the Gulf Stream as of
Aug 07, 2025 at 1200 UTC...

 36 nautical miles east of Flagler Beach.
 46 nautical miles east of Saint Augustine Beach.
 47 nautical miles east of Jacksonville Beach.
 59 nautical miles east of St Simons Island.

This data courtesy of the Naval Oceanographic Office.

$$

AMZ450-452-454-091545-
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-
831 PM EDT Fri Aug 8 2025

.REST OF TONIGHT...East winds near 15 knots, becoming southeast 10
to 15 knots after midnight. Seas around 3 feet. Wave Detail: East
2 feet at 4 seconds and east 2 feet at 8 seconds. Intracoastal
waters a moderate chop. Showers likely with a chance of
thunderstorms.
.SATURDAY...East winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: East 3 feet at 5 seconds and east 2 feet at 9 seconds.
Intracoastal waters a moderate chop. Showers. A chance of
thunderstorms in the morning, then thunderstorms in the
afternoon.
.SATURDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to
3 feet. Wave Detail: Southeast 3 feet at 5 seconds and east
2 feet at 8 seconds. Intracoastal waters a moderate chop.
Showers. Thunderstorms likely, mainly in the evening.
.SUNDAY...Southeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 2 feet at 5 seconds and northeast 2 feet at
9 seconds. Intracoastal waters a moderate chop. Showers. A chance
of thunderstorms in the morning, then thunderstorms likely in the
afternoon.
.SUNDAY NIGHT...Southeast winds 10 to 15 knots. Seas around
3 feet. Wave Detail: East 3 feet at 9 seconds and southeast
2 feet at 5 seconds. Intracoastal waters a moderate chop. Showers
likely with a chance of thunderstorms.
.MONDAY...Southeast winds around 10 knots. Seas around 3 feet.
Wave Detail: East 3 feet at 9 seconds and southeast 2 feet at
6 seconds. Intracoastal waters light chop. Showers. A chance of
thunderstorms in the morning, then thunderstorms likely in the
afternoon.
.MONDAY NIGHT...Southeast winds 5 to 10 knots. Seas 2 to 3 feet.
Intracoastal waters light chop. A chance of showers. A chance of
thunderstorms, mainly in the evening.
.TUESDAY...Southeast winds 5 to 10 knots, becoming south. Seas
2 to 3 feet. Intracoastal waters light chop. Showers likely
through the day. A chance of thunderstorms. A chance of showers
through the night. A slight chance of thunderstorms after
midnight.
.WEDNESDAY...South winds 5 to 10 knots. Seas around 2 feet.
Intracoastal waters light chop. A chance of showers. A chance of
thunderstorms .

Winds and waves higher in and near thunderstorms.

$$

AMZ470-472-474-091545-
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-
831 PM EDT Fri Aug 8 2025

.REST OF TONIGHT...East winds near 15 knots. Seas around 3 feet.
Wave Detail: East 2 feet at 4 seconds and east 2 feet at 8
seconds. Showers. A chance of thunderstorms.
.SATURDAY...Southeast winds 10 to 15 knots. Seas around 3 feet.
Wave Detail: East 3 feet at 9 seconds and southeast 2 feet at
4 seconds. Showers. A chance of thunderstorms in the morning,
then thunderstorms likely in the afternoon.
.SATURDAY NIGHT...Southeast winds 10 to 15 knots. Seas around
3 feet. Wave Detail: East 3 feet at 9 seconds and southeast
2 feet at 4 seconds. Showers with thunderstorms likely.
.SUNDAY...Southeast winds 10 to 15 knots. Seas around 3 feet.
Wave Detail: Northeast 3 feet at 9 seconds and southeast 2 feet
at 5 seconds. Showers. A chance of thunderstorms in the morning,
then thunderstorms likely in the afternoon.
.SUNDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Wave Detail: Southeast 3 feet at
6 seconds and east 3 feet at 9 seconds. A chance of
thunderstorms. Showers.
.MONDAY...Southeast winds around 10 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Wave Detail: East 3 feet at 9 seconds and
southeast 2 feet at 6 seconds. Showers with a chance of
thunderstorms in the morning, then showers and thunderstorms
likely in the afternoon.
.MONDAY NIGHT...Southeast winds 5 to 10 knots. Seas around
3 feet. A chance of thunderstorms. A chance of showers in the
evening, then showers likely after midnight.
.TUESDAY THROUGH WEDNESDAY...South winds 5 to 10 knots. Seas 2 to
3 feet. Showers likely with a chance of thunderstorms.

Winds and seas higher in and near thunderstorms.

$$