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FZUS52 KJAX 110626
CWFJAX

Coastal Waters Forecast for Northeast Florida/Southeast Georgia
National Weather Service Jacksonville FL
225 AM EDT Fri Sep 11 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.

AMZ400-112100-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
225 AM EDT Fri Sep 11 2026

.SYNOPSIS...

Atlantic high pressure ridge will be centered from Bermuda to
central Florida through early next week. This will favor prevailing
southwest to south winds the next few days but the afternoon sea
breeze will shift winds to southeast each afternoon across the near
shore waters. Thunderstorms will likely develop over coastal
locations during the afternoon hours will shift eastward across our
local waters during the late afternoon and evening hours through the
weekend. Onshore winds are forecast to develop Tuesday, 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.


$$

AMZ450-452-454-112100-
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-
225 AM EDT Fri Sep 11 2026

.REST OF TONIGHT...Southwest winds 5 to 10 knots. Seas 2 to
3 feet. Wave Detail: East 3 feet at 7 seconds. Intracoastal
waters light chop.
.FRIDAY...Southwest winds 5 to 10 knots, becoming southeast 10 to
15 knots in the afternoon. Seas 2 to 3 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 in the afternoon.
.FRIDAY NIGHT...South winds 10 to 15 knots, becoming southwest
5 to 10 knots after midnight. Seas 2 to 3 feet. Wave Detail:
Southeast 2 feet at 4 seconds and east 2 feet at 7 seconds.
Intracoastal waters a moderate chop. A slight chance of showers
and thunderstorms in the evening.
.SATURDAY...South winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 2 feet at 3 seconds and southeast 2 feet at
8 seconds. Intracoastal waters light chop. A chance of showers
and thunderstorms in the afternoon.
.SATURDAY NIGHT...South winds 10 to 15 knots, becoming southwest
5 to 10 knots after midnight. Seas 2 to 3 feet. Wave Detail:
Southeast 2 feet at 4 seconds and southeast 2 feet at 8 seconds.
Intracoastal waters a moderate chop. A slight chance of showers
and thunderstorms in the evening.
.SUNDAY...Southwest winds around 5 knots, becoming southeast in
the afternoon. Seas around 2 feet. Wave Detail: Southeast 2 feet
at 4 seconds and east 2 feet at 8 seconds. Intracoastal waters
light chop. A slight chance of showers and thunderstorms in the
afternoon.
.SUNDAY NIGHT...South winds 5 to 10 knots, becoming southwest
after midnight. Seas 2 to 3 feet. Intracoastal waters light chop.
A chance of showers and thunderstorms in the evening.
.MONDAY...Southeast winds around 5 knots. Seas around 2 feet.
Intracoastal waters smooth. A slight chance of showers and
thunderstorms in the afternoon.
.TUESDAY...Northeast winds 15 to 20 knots. Seas 2 to 4 feet,
occasionally to 5 feet. Intracoastal waters choppy. A chance of
showers. A chance of thunderstorms .

Winds and waves higher in and near thunderstorms.

$$

AMZ470-472-474-112100-
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-
225 AM EDT Fri Sep 11 2026

.REST OF TONIGHT...Southwest winds 5 to 10 knots. Seas around
3 feet. Wave Detail: East 3 feet at 7 seconds and south 2 feet at
4 seconds. A slight chance of showers and thunderstorms.
.FRIDAY...Southwest winds 5 to 10 knots, becoming south 10 to
15 knots in the afternoon. Seas 2 to 3 feet. Wave Detail: East
3 feet at 8 seconds. A slight chance of showers and
thunderstorms.
.FRIDAY NIGHT...South winds 10 to 15 knots, becoming southwest
5 to 10 knots after midnight. 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.
.SATURDAY...Southwest winds 5 to 10 knots, becoming south in the
afternoon. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at
8 seconds. A slight chance of showers and thunderstorms in the
morning.
.SATURDAY NIGHT...South winds 10 to 15 knots. Seas around 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...Southwest winds 5 to 10 knots, becoming south in the
afternoon. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at
8 seconds. A slight chance of showers and thunderstorms in the
morning.
.SUNDAY NIGHT...Southwest winds 5 to 10 knots. Seas 2 to 3 feet.
A chance of showers and thunderstorms, mainly in the evening.
.MONDAY...Northwest winds 5 to 10 knots, becoming southeast. Seas
2 to 3 feet. A slight chance of showers and thunderstorms in the
morning. A slight chance of showers and thunderstorms after
midnight.
.TUESDAY...Northeast winds 10 to 15 knots, becoming east 15 to
20 knots. Seas 2 to 4 feet, occasionally to 5 feet, building to
4 to 5 feet, occasionally to 6 feet after midnight. Showers
likely in the morning. A chance of thunderstorms. A chance of
showers. A slight chance of thunderstorms after midnight.

Winds and seas higher in and near thunderstorms.

$$