750
FZUS52 KJAX 101826
CWFJAX

Coastal Waters Forecast for Northeast Florida/Southeast Georgia
National Weather Service Jacksonville FL
225 PM EDT Thu Sep 10 2026

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.

AMZ400-110900-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
225 PM EDT Thu Sep 10 2026

.SYNOPSIS...

Showers and thunderstorms will continue to impact mainly the near
shore coastal waters through the early evening hours tonight.
Otherwise, Atlantic high pressure centered near Bermuda this
afternoon will shift southward while gradually weakening on Friday
as a frontal boundary shifts towards the southeastern states. This
front will stall and weaken well to the north of our local waters
this weekend. Prevailing winds will become southwesterly from Friday
through the upcoming weekend, with the afternoon sea breeze shifting
winds to southeasterly each afternoon across the near shore waters.
Showers and thunderstorms developing over coastal locations during
the afternoon hours will shift eastward across our local waters
during the late afternoon and evening hours from Friday through the
upcoming weekend. High pressure will then build down the
southeastern seaboard early next week, with onshore winds forecast
to develop by Monday afternoon, with breezy conditions and building
seas forecast towards Tuesday and Wednesday of next week.


.GULF STREAM...

The approximate location of the west wall of the Gulf Stream as of
Sep 10, 2026 at 0000 UTC...

 46 nautical miles east of Flagler Beach.
 53 nautical miles east of Saint Augustine Beach.
 64 nautical miles east southeast of Jacksonville Beach.
 76 nautical miles east southeast of St Simons Island.

This data derived from NCEP Global RTOFS model.


$$

AMZ450-452-454-110900-
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-
226 PM EDT Thu Sep 10 2026

.REST OF TODAY...Southeast winds 10 to 15 knots. Seas 3 to
4 feet, occasionally to 5 feet. Wave Detail: East 3 feet at
7 seconds and southeast 2 feet at 3 seconds. Intracoastal waters
a moderate chop. A chance of showers and thunderstorms.
.TONIGHT...South winds 10 to 15 knots, becoming southwest 5 to
10 knots after midnight. Seas 3 to 4 feet, occasionally to
5 feet. Wave Detail: East 3 feet at 7 seconds and southeast
2 feet at 4 seconds. Intracoastal waters a moderate chop. A
chance of showers and thunderstorms, mainly in the evening.
.FRIDAY...South winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: East 3 feet at 8 seconds. Intracoastal waters light chop.
A chance of showers and thunderstorms in the afternoon.
.FRIDAY NIGHT...South winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 3 feet at 8 seconds and south 2 feet at
4 seconds. Intracoastal waters light chop. A slight chance of
showers and thunderstorms in the evening.
.SATURDAY...Southwest winds around 5 knots, becoming southeast in
the afternoon. Seas around 2 feet. Wave Detail: East 2 feet at
8 seconds. Intracoastal waters light chop. A chance of showers
and thunderstorms in the afternoon.
.SATURDAY NIGHT...Southwest winds 5 to 10 knots. Seas 2 to
3 feet. Wave Detail: Southeast 2 feet at 4 seconds and southeast
2 feet at 8 seconds. Intracoastal waters light chop. A slight
chance of thunderstorms. A slight chance of showers in the
evening, then a chance of showers after midnight.
.SUNDAY THROUGH MONDAY...East winds 5 to 10 knots. Seas 2 to
3 feet. Intracoastal waters light chop. A slight chance of
showers and thunderstorms.

Winds and waves higher in and near thunderstorms.

$$

AMZ470-472-474-110900-
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-
226 PM EDT Thu Sep 10 2026

.REST OF TODAY...Southeast winds 10 to 15 knots. Seas 3 to
4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at
7 seconds. A chance of showers and thunderstorms.
.TONIGHT...South winds 10 to 15 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Wave Detail: East 3 feet at 7 seconds and
south 2 feet at 4 seconds. A slight chance of showers and
thunderstorms.
.FRIDAY...South winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: East 3 feet at 8 seconds and south 2 feet at 4 seconds.
.FRIDAY NIGHT...South winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 3 feet at 8 seconds and south 2 feet at
4 seconds. A slight chance of showers and thunderstorms after
midnight.
.SATURDAY...Southwest winds 5 to 10 knots, becoming south in the
afternoon. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at
4 seconds and southeast 2 feet at 8 seconds. A chance of showers.
A chance of thunderstorms, mainly in the morning.
.SATURDAY NIGHT...South winds 5 to 10 knots. Seas 2 to 3 feet.
Wave Detail: Southeast 3 feet at 8 seconds and southeast 2 feet
at 4 seconds. A slight chance of thunderstorms. A slight chance
of showers in the evening, then a chance of showers after
midnight.
.SUNDAY THROUGH MONDAY...East winds 5 to 10 knots. Seas 2 to
3 feet. A chance of showers with a slight chance of
thunderstorms.

Winds and seas higher in and near thunderstorms.

$$