618
FZUS52 KJAX 111731
CWFJAX

Coastal Waters Forecast for Northeast Florida/Southeast Georgia
National Weather Service Jacksonville FL
1231 PM EST Thu Dec 11 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.

AMZ400-120845-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
1231 PM EST Thu Dec 11 2025

.SYNOPSIS...

Lingering winds behind a dry frontal passage will continue Small
Craft Advisory conditions offshore through the rest of the morning.
A high pressure center will build into the area today into Friday
and then shift offshore by early Saturday ahead of the next frontal
boundary. This next front will likely remain dry as it crosses our
local waters on Sunday night. Strong, arctic high pressure building
behind this frontal passage will result in strong northerly winds on
Sunday night that will shift to northeast on Monday. Small Craft
Advisory conditions with potential for Gale-force gusts throughout
our local waters from Sunday night through Monday night.


.GULF STREAM...

The approximate location of the west wall of the Gulf Stream as of
Dec 06, 2025 at 1200 UTC...

 71 nautical miles east of Flagler Beach.
 74 nautical miles east of Saint Augustine Beach.
 85 nautical miles east southeast of Jacksonville Beach.
 97 nautical miles east southeast of St Simons Island.

This data courtesy of the Naval Oceanographic Office.


$$

AMZ450-452-454-120845-
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-
1231 PM EST Thu Dec 11 2025

.REST OF TODAY...Northwest winds 10 to 15 knots. Seas 3 to
5 feet, occasionally to 6 feet. Wave Detail: Northwest 3 feet at
4 seconds and east 3 feet at 10 seconds. Intracoastal waters a
moderate chop.
.TONIGHT...Northwest winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: Northwest 2 feet at 4 seconds and east 2 feet at
9 seconds. Intracoastal waters light chop.
.FRIDAY...West winds around 5 knots, becoming southwest in the
afternoon. Seas around 2 feet. Wave Detail: Northeast 2 feet at
7 seconds. Intracoastal waters light chop.
.FRIDAY NIGHT...Southwest winds 5 to 10 knots. Seas around
2 feet. Wave Detail: East 2 feet at 8 seconds. Intracoastal
waters light chop.
.SATURDAY...Northwest winds around 5 knots, becoming east in the
afternoon. Seas around 2 feet. Intracoastal waters smooth.
.SATURDAY NIGHT...South winds around 5 knots, becoming southwest
after midnight. Seas around 2 feet. Intracoastal waters light
chop.
.SUNDAY THROUGH MONDAY...Northeast winds 25 to 30 knots. Seas
5 to 7 feet, occasionally to 9 feet. Intracoastal waters very
rough.

$$

AMZ470-472-474-120845-
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-
1231 PM EST Thu Dec 11 2025

.REST OF TODAY...Northwest winds 15 to 20 knots. Seas 4 to
6 feet, occasionally to 8 feet. Wave Detail: Northwest 5 feet at
5 seconds and east 3 feet at 9 seconds.
.TONIGHT...Northwest winds 10 to 15 knots, diminishing to 5 to
10 knots after midnight. Seas 2 to 4 feet, occasionally to
5 feet. Wave Detail: Northwest 3 feet at 5 seconds and east
2 feet at 9 seconds.
.FRIDAY...West winds 5 to 10 knots, becoming southwest in the
afternoon. Seas 2 to 3 feet. Wave Detail: Northwest 2 feet at
4 seconds and east 2 feet at 9 seconds.
.FRIDAY NIGHT...Southwest winds 10 to 15 knots. Seas 2 to 3 feet.
Wave Detail: Southwest 2 feet at 3 seconds and east 2 feet at
8 seconds.
.SATURDAY...Northwest winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: Southwest 2 feet at 3 seconds and east 2 feet at
9 seconds.
.SATURDAY NIGHT...South winds 5 to 10 knots, becoming southwest
after midnight. Seas around 2 feet. Wave Detail: East 2 feet at
8 seconds.
.SUNDAY...Northwest winds 15 to 20 knots, becoming north 25 to
30 knots. Seas 2 to 4 feet, occasionally to 5 feet, building to
6 to 9 feet, occasionally to 11 feet.
.MONDAY...Northeast winds 20 to 25 knots, diminishing to 10 to
15 knots. Seas 6 to 9 feet, occasionally to 11 feet, subsiding to
5 to 7 feet, occasionally to 9 feet after midnight. A slight
chance of showers through the day.

$$