710
FZUS52 KJAX 210501
CWFJAX

Coastal Waters Forecast for Northeast Florida/Southeast Georgia
National Weather Service Jacksonville FL
1201 AM EST Fri Nov 21 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.

AMZ400-212000-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
1201 AM EST Fri Nov 21 2025

.SYNOPSIS...

Weakening high pressure will continue to shift slowly southeastward
across the Florida peninsula through Saturday. Dense sea fog is
expected to develop early this morning across the Georgia waters,
with this fog potentially extending to the near shore waters
adjacent to coastal northeast Florida before dissipating by early
afternoon. A weakening and mostly dry frontal boundary will then
push southward through the Georgia waters on Saturday night, with
this boundary pushing across the northeast FL waters early on Sunday
morning. High pressure will build eastward from the Ozarks on Sunday
towards the Mid-Atlantic states by Monday afternoon, with breezy
onshore winds developing across our local waters from Sunday
afternoon through Monday afternoon. A stronger cold front may then
push eastward across the southeastern states on Wednesday and
Wednesday night, with southerly winds expected to develop ahead of
this front beginning on Tuesday evening.


.GULF STREAM...

The approximate location of the west wall of the Gulf Stream as of
Nov 20, 2025 at 1200 UTC...

 44 nautical miles east of Flagler Beach.
 46 nautical miles east of Saint Augustine Beach.
 54 nautical miles east of Jacksonville Beach.
 72 nautical miles east of St Simons Island.

This data courtesy of the Naval Oceanographic Office.


$$

AMZ450-452-212000-
Coastal waters from Altamaha Sound to Fernandina Beach FL out
20 NM-
Coastal waters from Fernandina Beach to St. Augustine FL out
20 NM-
1201 AM EST Fri Nov 21 2025

...DENSE FOG ADVISORY IN EFFECT UNTIL NOON EST TODAY...

.REST OF TONIGHT...East winds around 5 knots, becoming southwest.
Waves 1 foot or less. Intracoastal waters smooth. Widespread
dense fog. Visibility 1 NM or less.
.FRIDAY...Southwest winds around 5 knots, becoming south in the
afternoon. Waves 1 foot or less, then around 2 feet in the
afternoon. Intracoastal waters light chop. Widespread dense fog
in the morning. Patchy fog in the afternoon. Visibility 1 NM or
less in the morning.
.FRIDAY NIGHT...South winds around 10 knots, becoming southwest
after midnight. Seas around 2 feet. Wave Detail: South 2 feet at
3 seconds. Intracoastal waters light chop.
.SATURDAY...Southwest winds around 10 knots. Seas around 2 feet.
Intracoastal waters light chop.
.SATURDAY NIGHT...West winds 5 to 10 knots. Seas around 2 feet.
Intracoastal waters light chop.
.SUNDAY AND SUNDAY NIGHT...Northeast winds 10 to 15 knots. Seas
2 to 3 feet. Wave Detail: Northeast 2 feet at 7 seconds.
Intracoastal waters a moderate chop.
.MONDAY THROUGH TUESDAY...South winds 10 to 15 knots. Seas 2 to
3 feet. Intracoastal waters a moderate chop.

$$

AMZ454-212000-
Coastal waters from St. Augustine to Flagler Beach FL out 20 NM-
1201 AM EST Fri Nov 21 2025

.REST OF TONIGHT...Southeast winds around 5 knots, becoming
southwest. Waves 1 foot or less. Intracoastal waters smooth.
Areas of fog.
.FRIDAY...West winds around 5 knots, becoming southeast in the
afternoon. Waves 1 foot or less. Intracoastal waters light chop.
Patchy fog in the morning.
.FRIDAY NIGHT...South winds 5 to 10 knots, becoming southwest
after midnight. Seas around 2 feet. Intracoastal waters light
chop.
.SATURDAY...Southwest winds 5 to 10 knots. Seas around 2 feet.
Intracoastal waters light chop.
.SATURDAY NIGHT...West winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: West 2 feet at 3 seconds. Intracoastal waters light
chop.
.SUNDAY AND SUNDAY NIGHT...Northeast winds 10 to 15 knots. Seas
around 2 feet. Wave Detail: Northwest 2 feet at 3 seconds and
northeast 2 feet at 7 seconds. Intracoastal waters a moderate
chop.
.MONDAY THROUGH TUESDAY...South winds 5 to 10 knots. Seas 2 to
3 feet. Intracoastal waters light chop.

$$

AMZ470-472-474-212000-
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-
1201 AM EST Fri Nov 21 2025

.REST OF TONIGHT...Northeast winds around 5 knots, becoming
northwest. Seas around 2 feet. Areas of fog late this evening.
Patchy fog. Visibility 1 NM or less.
.FRIDAY...Southwest winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Northeast 2 feet at 6 seconds. Patchy fog in the morning
with visibility 1 NM or less.
.FRIDAY NIGHT...Southwest winds 10 to 15 knots. Seas 2 to 3 feet.
Wave Detail: South 2 feet at 3 seconds and northeast 2 feet at
6 seconds.
.SATURDAY...Southwest winds 10 to 15 knots. Seas 2 to 3 feet.
Wave Detail: Southwest 2 feet at 3 seconds and northeast 2 feet
at 7 seconds.
.SATURDAY NIGHT...West winds 10 to 15 knots. Seas 2 to 3 feet.
Wave Detail: Southwest 2 feet at 3 seconds.
.SUNDAY AND SUNDAY NIGHT...Northeast winds 10 to 15 knots. Seas
2 to 3 feet. Wave Detail: North 3 feet at 5 seconds.
.MONDAY THROUGH TUESDAY...South winds 10 to 15 knots. Seas 3 to
4 feet, occasionally to 5 feet.

$$