995
FZUS52 KJAX 281735
CWFJAX

Coastal Waters Forecast for Northeast Florida/Southeast Georgia
National Weather Service Jacksonville FL
135 PM EDT Thu Aug 28 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.

AMZ400-290800-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
135 PM EDT Thu Aug 28 2025

.SYNOPSIS...

A frontal boundary will continue to meander near or over northeast
FL waters through the weekend as a ridge of high pressure holds
steady just north of the boundary. Northeast to easterly flow will
continue north of the front, as well as convergent showers and
isolated thunderstorms with chances and coverage expected to
increase Friday and through the weekend. Another cold front will
move down the coast early next week bringing elevated northeasterly
winds and seas.


.GULF STREAM...

The approximate location of the west wall of the Gulf Stream as of
Aug 26, 2025 at 1200 UTC...

 53 nautical miles east northeast of Flagler Beach.
 53 nautical miles east of Saint Augustine Beach.
 61 nautical miles east of Jacksonville Beach.
 75 nautical miles east southeast of St Simons Island.

This data courtesy of the Naval Oceanographic Office.


$$

AMZ450-452-454-290800-
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-
135 PM EDT Thu Aug 28 2025

.REST OF TODAY...Northeast winds 10 to 15 knots. Seas 2 to
3 feet. Wave Detail: Northeast 2 feet at 5 seconds. Intracoastal
waters a moderate chop. A slight chance of showers and
thunderstorms late this morning, then a chance of showers and
thunderstorms this afternoon.
.TONIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: Northeast 2 feet at 5 seconds. Intracoastal waters light
chop. A chance of showers with a slight chance of thunderstorms.
.FRIDAY...Northeast winds 5 to 10 knots, becoming east 10 to
15 knots in the afternoon. Seas 2 to 3 feet. Wave Detail:
Northeast 2 feet at 6 seconds. Intracoastal waters a moderate
chop. A chance of showers and thunderstorms.
.FRIDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: East 2 feet at 5 seconds. Intracoastal waters light chop.
A chance of showers and thunderstorms.
.SATURDAY...East winds 5 to 10 knots, increasing to 10 to
15 knots in the afternoon. Seas around 2 feet. Wave Detail: East
2 feet at 5 seconds. Intracoastal waters a moderate chop. Showers
likely. A chance of thunderstorms in the morning, then
thunderstorms likely in the afternoon.
.SATURDAY NIGHT...East winds around 10 knots. Seas around 2 feet.
Wave Detail: East 2 feet at 5 seconds. Intracoastal waters light
chop. A chance of showers and thunderstorms.
.SUNDAY...Northeast winds 10 to 15 knots. Seas 2 to 4 feet,
occasionally to 5 feet. Intracoastal waters a moderate chop. A
chance of showers in the morning. A chance of thunderstorms.
Showers likely in the afternoon, then a chance of showers through
the night. A slight chance of thunderstorms after midnight.
.MONDAY...Northeast winds 15 to 20 knots. Seas 3 to 5 feet,
occasionally to 6 feet. Intracoastal waters choppy. A chance of
showers with a slight chance of thunderstorms in the morning,
then showers likely with a chance of thunderstorms through the
night. A chance of showers with a slight chance of thunderstorms
after midnight.

Winds and waves higher in and near thunderstorms.

$$

AMZ470-472-474-290800-
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-
135 PM EDT Thu Aug 28 2025

.REST OF TODAY...East winds around 10 knots. Seas 2 to 3 feet.
Wave Detail: Northeast 2 feet at 6 seconds and east 2 feet at
9 seconds. A slight chance of showers and thunderstorms late this
morning, then a chance of showers and thunderstorms this
afternoon.
.TONIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: Northeast 2 feet at 6 seconds. A chance of showers and
thunderstorms.
.FRIDAY...Northeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: Northeast 2 feet at 6 seconds. A chance of showers and
thunderstorms.
.FRIDAY NIGHT...East winds around 10 knots. Seas 2 to 3 feet.
Wave Detail: East 2 feet at 6 seconds. A chance of thunderstorms.
A chance of showers in the evening, then showers likely after
midnight.
.SATURDAY...East winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: East 2 feet at 7 seconds. Showers likely. A chance of
thunderstorms in the morning, then thunderstorms likely in the
afternoon.
.SATURDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet.
Wave Detail: East 2 feet at 5 seconds and east 2 feet at
8 seconds. Showers likely with a chance of thunderstorms.
.SUNDAY...Northeast winds 10 to 15 knots. Seas 2 to 4 feet,
occasionally to 5 feet. Showers likely with a chance of
thunderstorms.
.MONDAY...Northeast winds 15 to 20 knots. Seas 4 to 5 feet,
occasionally to 6 feet. A chance of thunderstorms. Showers.

Winds and seas higher in and near thunderstorms.

$$