815
FZUS52 KJAX 151731 AAA
CWFJAX

Coastal Waters Forecast for Northeast Florida/Southeast Georgia
National Weather Service Jacksonville FL
130 PM EDT Wed Oct 15 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.

AMZ400-160830-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
130 PM EDT Wed Oct 15 2025

.SYNOPSIS...

Strengthened northeast winds and building seas expected through
Thursday and likely to persist into Friday. Higher winds and seas
has resulted in Small Craft Advisory conditions over portions of
the area waters. Elevated seas will persist through Friday evening.
Winds will shift to the southeast and south over the weekend as a
cold front approaches. The frontal passage is forecast for Monday
with winds strengthening just ahead and behind this frontal
passage.

.GULF STREAM...

The approximate location of the west wall of the Gulf Stream as of
Oct 11, 2025 at 1200 UTC...

 56 nautical miles east northeast of Flagler Beach.
 59 nautical miles east of Saint Augustine Beach.
 76 nautical miles east of Jacksonville Beach.
 94 nautical miles east of St Simons Island.

This data courtesy of the Naval Oceanographic Office.

$$

AMZ450-452-160830-
Coastal waters from Altamaha Sound to Fernandina Beach FL out
20 NM-
Coastal waters from Fernandina Beach to St. Augustine FL out
20 NM-
130 PM EDT Wed Oct 15 2025

...SMALL CRAFT EXERCISE CAUTION IN EFFECT THROUGH LATE TONIGHT...

.REST OF TODAY...Northeast winds 15 to 20 knots. Seas 4 to
6 feet, occasionally to 8 feet. Wave Detail: Northeast 6 feet at
7 seconds. Intracoastal waters choppy.
.TONIGHT...Northeast winds 15 to 20 knots, diminishing to 10 to
15 knots after midnight. Seas 4 to 6 feet, occasionally to
8 feet. Wave Detail: Northeast 5 feet at 8 seconds. Intracoastal
waters choppy.
.THURSDAY...Northeast winds 15 to 20 knots. Seas 4 to 6 feet,
occasionally to 8 feet. Wave Detail: Northeast 5 feet at
10 seconds. Intracoastal waters choppy.
.THURSDAY NIGHT...Northeast winds 15 to 20 knots, diminishing to
10 to 15 knots after midnight. Seas 4 to 6 feet, occasionally to
8 feet. Wave Detail: Northeast 5 feet at 10 seconds. Intracoastal
waters choppy.
.FRIDAY AND FRIDAY NIGHT...East winds 10 to 15 knots. Seas 4 to
6 feet, occasionally to 8 feet. Wave Detail: East 5 feet at
10 seconds. Intracoastal waters a moderate chop.
.SATURDAY...East winds 5 to 10 knots, becoming southeast. Seas
3 to 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at
9 seconds. Intracoastal waters light chop.
.SUNDAY...South winds 10 to 15 knots, becoming southwest. Seas
3 to 5 feet, occasionally to 6 feet. Intracoastal waters a
moderate chop. A slight chance of showers in the evening. A
slight chance of showers and thunderstorms after midnight.

Winds and waves higher in and near thunderstorms.

$$

AMZ454-160830-
Coastal waters from St. Augustine to Flagler Beach FL out 20 NM-
130 PM EDT Wed Oct 15 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM EDT THIS EVENING...

.REST OF TODAY...North winds around 20 knots. Seas around 6 feet,
occasionally to 8 feet. Wave Detail: Northeast 6 feet at
6 seconds. Intracoastal waters choppy.
.TONIGHT...North winds 15 to 20 knots. Seas 5 to 6 feet,
occasionally to 8 feet. Wave Detail: Northeast 6 feet at
7 seconds. Intracoastal waters choppy.
.THURSDAY...Northeast winds 15 to 20 knots. Seas 5 to 6 feet,
occasionally to 8 feet. Wave Detail: Northeast 6 feet at
10 seconds. Intracoastal waters choppy.
.THURSDAY NIGHT...Northeast winds 15 to 20 knots. Seas 5 to
6 feet, occasionally to 8 feet. Wave Detail: Northeast 6 feet at
10 seconds. Intracoastal waters choppy.
.FRIDAY AND FRIDAY NIGHT...East winds 15 to 20 knots. Seas 4 to
6 feet, occasionally to 8 feet. Wave Detail: Northeast 6 feet at
10 seconds. Intracoastal waters choppy.
.SATURDAY THROUGH SUNDAY...Southwest winds 10 to 15 knots. Seas
3 to 5 feet, occasionally to 6 feet. Wave Detail: Northeast
4 feet at 9 seconds and southeast 3 feet at 4 seconds.
Intracoastal waters a moderate chop.

$$

AMZ470-472-474-160830-
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-
130 PM EDT Wed Oct 15 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY MORNING...

.REST OF TODAY...North winds 15 to 20 knots. Seas 5 to 7 feet,
occasionally to 9 feet. Wave Detail: Northeast 6 feet at
9 seconds.
.TONIGHT...Northeast winds 15 to 20 knots. Seas 5 to 7 feet,
occasionally to 9 feet. Wave Detail: Northeast 6 feet at
10 seconds.
.THURSDAY...Northeast winds 15 to 20 knots. Seas 5 to 7 feet,
occasionally to 9 feet. Wave Detail: Northeast 6 feet at
10 seconds.
.THURSDAY NIGHT...Northeast winds 15 to 20 knots. Seas 5 to
7 feet, occasionally to 9 feet. Wave Detail: Northeast 6 feet at
10 seconds.
.FRIDAY AND FRIDAY NIGHT...East winds 10 to 15 knots. Seas 5 to
6 feet, occasionally to 8 feet. Wave Detail: Northeast 6 feet at
10 seconds.
.SATURDAY...East winds 5 to 10 knots, becoming southeast. Seas
4 to 5 feet, occasionally to 6 feet. Wave Detail: Northeast
5 feet at 9 seconds.
.SUNDAY...South winds 10 to 15 knots, becoming southwest 15 to
20 knots. Seas 4 to 6 feet, occasionally to 8 feet. A slight
chance of showers in the evening. A slight chance of showers and
thunderstorms after midnight.

Winds and seas higher in and near thunderstorms.

$$