Coastal Waters Forecast
Issued by NWS Jacksonville, FL

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FZUS52 KJAX 291725
CWFJAX

Coastal Waters Forecast for Northeast Florida/Southeast Georgia
National Weather Service Jacksonville FL
125 PM EDT Sun Jun 29 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.

AMZ400-300800-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
125 PM EDT Sun Jun 29 2025

.SYNOPSIS...

Offshore flow continues through Thursday as the Bermuda ridge stays
situated to the south and an unseasonable cool front approaches from
the northwest. Offshore winds will increase to Caution levels
offshore during the evening hours Monday and Tuesday in response to
the approaching boundary. Strong afternoon thunderstorms are
possible over the next several afternoons across the nearshore
waters. Late this week a weak low pressure system may organize over
the region along the leftover boundary. Please stay tuned to the
latest National Hurricane Center outlooks for any potential tropical
low pressure development along this leftover boundary.


.GULF STREAM...

The approximate location of the west wall of the Gulf Stream as of
Jun 28, 2025 at 1200 UTC...

 57 nautical miles east of Flagler Beach.
 72 nautical miles east southeast of Saint Augustine Beach.
 83 nautical miles east of Jacksonville Beach.
 99 nautical miles east southeast of St Simons Island.

This data courtesy of the Naval Oceanographic Office.


$$

AMZ450-452-454-300800-
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-
125 PM EDT Sun Jun 29 2025

.REST OF TODAY...Southeast winds 5 to 10 knots, becoming south
10 to 15 knots this afternoon. Seas 2 to 3 feet. Wave Detail:
Southeast 3 feet at 9 seconds and south 2 feet at 4 seconds.
Intracoastal waters a moderate chop. A slight chance of showers
and thunderstorms late this morning, then showers and
thunderstorms likely this afternoon.
.TONIGHT...Southwest winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: South 2 feet at 4 seconds and east 2 feet at 9 seconds.
Intracoastal waters a moderate chop. A chance of showers and
thunderstorms, mainly in the evening.
.MONDAY...South winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: South 2 feet at 4 seconds and east 2 feet at 9 seconds.
Intracoastal waters a moderate chop. A chance of showers and
thunderstorms in the morning, then showers and thunderstorms
likely in the afternoon.
.MONDAY NIGHT...Southwest winds 10 to 15 knots. Seas 2 to 3 feet.
Wave Detail: Southeast 2 feet at 4 seconds and east 2 feet at
9 seconds. Intracoastal waters a moderate chop. A chance of
showers and thunderstorms in the evening, then a slight chance of
showers after midnight.
.TUESDAY AND TUESDAY NIGHT...Southwest winds 10 to 15 knots. Seas
2 to 3 feet. Wave Detail: Southeast 2 feet at 4 seconds and east
2 feet at 9 seconds. Intracoastal waters a moderate chop. A
chance of showers and thunderstorms.
.WEDNESDAY THROUGH THURSDAY...Southwest winds 5 to 10 knots. Seas
2 to 3 feet. Wave Detail: East 3 feet at 8 seconds and south
2 feet at 5 seconds. Intracoastal waters light chop. Showers and
thunderstorms likely.

Winds and waves higher in and near thunderstorms.

$$

AMZ470-472-474-300800-
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-
125 PM EDT Sun Jun 29 2025

.REST OF TODAY...South winds around 5 knots, increasing to 10 to
15 knots this afternoon. Seas around 3 feet. Wave Detail:
Southeast 3 feet at 9 seconds and southwest 2 feet at 4 seconds.
A slight chance of showers and thunderstorms late this morning,
then a chance of showers and thunderstorms this afternoon.
.TONIGHT...Southwest winds 10 to 15 knots. Seas around 3 feet.
Wave Detail: South 3 feet at 4 seconds and east 2 feet at
9 seconds. A chance of showers. A chance of thunderstorms, mainly
in the evening.
.MONDAY...South winds 10 to 15 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Wave Detail: South 3 feet at 4 seconds
and east 2 feet at 9 seconds. Showers likely with a slight chance
of thunderstorms in the morning, then a chance of showers and
thunderstorms in the afternoon.
.MONDAY NIGHT...South winds 10 to 15 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Wave Detail: South 3 feet at 4 seconds
and east 2 feet at 9 seconds. A chance of showers. A chance of
thunderstorms, mainly in the evening.
.TUESDAY...South winds 10 to 15 knots. Seas around 3 feet. Wave
Detail: South 3 feet at 4 seconds and east 2 feet at 9 seconds. A
slight chance of showers and thunderstorms in the morning, then a
chance of showers and thunderstorms in the afternoon.
.TUESDAY NIGHT...Southwest winds 10 to 15 knots. Seas around
3 feet. Wave Detail: South 3 feet at 4 seconds and east 2 feet at
9 seconds. A chance of thunderstorms. Showers likely, mainly in
the evening.
.WEDNESDAY...Southwest winds 10 to 15 knots. Seas around 3 feet.
A chance of showers with a slight chance of thunderstorms in the
morning, then thunderstorms likely in the afternoon. Showers. A
chance of thunderstorms in the evening, then a slight chance of
thunderstorms after midnight.
.THURSDAY...Southwest winds 10 to 15 knots, diminishing to 5 to
10 knots. Seas 2 to 3 feet. Showers through the day. A chance of
thunderstorms. A chance of showers through the night. A slight
chance of thunderstorms after midnight.

Winds and seas higher in and near thunderstorms.

$$