925
FZUS52 KJAX 112334
CWFJAX

Coastal Waters Forecast for Northeast Florida/Southeast Georgia
National Weather Service Jacksonville FL
734 PM EDT Tue Aug 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.

AMZ400-121445-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
734 PM EDT Tue Aug 11 2026

.SYNOPSIS...

Atlantic high pressure will shift south and westward as a trough
forms over the southeastern states. Each afternoon, the sea
breeze will shift winds southeasterly over the near shore waters
through the upcoming weekend, followed by southerly evening wind
surges which may briefly increase to near caution levels. Scattered
thunderstorms may push east from the coast into the coastal waters
this evening. Scattered mainly afternoon and evening thunderstorms
will remain possible each day through the upcoming weekend.


.GULF STREAM...

The approximate location of the west wall of the Gulf Stream as of
Aug 11, 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.
 71 nautical miles east southeast of St Simons Island.

This data derived from NCEP Global RTOFS model.


$$

AMZ450-452-454-121445-
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-
734 PM EDT Tue Aug 11 2026

.TONIGHT...Southwest winds 10 to 15 knots, becoming west after
midnight. Seas 2 to 3 feet. Wave Detail: South 2 feet at
4 seconds and east 2 feet at 7 seconds. Intracoastal waters a
moderate chop. A chance of showers and thunderstorms, mainly this
evening.
.WEDNESDAY...West winds 10 to 15 knots, becoming southwest 5 to
10 knots in the afternoon. Seas around 2 feet. Wave Detail: West
2 feet at 3 seconds and southeast 2 feet at 7 seconds.
Intracoastal waters a moderate chop. A slight chance of showers
and thunderstorms in the morning, then a chance of showers and
thunderstorms in the afternoon.
.WEDNESDAY NIGHT...Southwest winds 10 to 15 knots. Seas around
2 feet. Wave Detail: Southwest 2 feet at 3 seconds. Intracoastal
waters a moderate chop.
.THURSDAY...West winds 10 to 15 knots, becoming south 5 to
10 knots in the afternoon. Seas around 2 feet. Wave Detail: West
2 feet at 3 seconds. Intracoastal waters a moderate chop. A
slight chance of showers and thunderstorms in the afternoon.
.THURSDAY NIGHT...South winds 10 to 15 knots, becoming southwest
5 to 10 knots after midnight. Seas around 2 feet. Wave Detail:
South 2 feet at 4 seconds. Intracoastal waters a moderate chop.
.FRIDAY...Southwest winds 5 to 10 knots, becoming south 10 to
15 knots in the afternoon. Seas around 2 feet. Wave Detail:
Southeast 2 feet at 4 seconds. Intracoastal waters a moderate
chop.
.FRIDAY NIGHT...South winds 10 to 15 knots, becoming southwest
5 to 10 knots after midnight. Seas 2 to 3 feet. Intracoastal
waters a moderate chop. A slight chance of showers and
thunderstorms in the evening.
.SATURDAY THROUGH SUNDAY...Southwest winds 10 to 15 knots. Seas
2 to 3 feet. Intracoastal waters a moderate chop. A slight chance
of showers and thunderstorms.

Winds and waves higher in and near thunderstorms.

$$

AMZ470-472-474-121445-
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-
734 PM EDT Tue Aug 11 2026

.TONIGHT...Southwest winds 10 to 15 knots, becoming west after
midnight. Seas 2 to 3 feet. Wave Detail: South 3 feet at
4 seconds and east 2 feet at 7 seconds. A chance of showers and
thunderstorms, mainly this evening.
.WEDNESDAY...West winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: West 3 feet at 4 seconds and southeast 2 feet at
8 seconds. A slight chance of showers and thunderstorms in the
morning, then a chance of showers and thunderstorms in the
afternoon.
.WEDNESDAY NIGHT...West winds 10 to 15 knots. Seas 2 to 3 feet.
Wave Detail: West 3 feet at 4 seconds. A slight chance of showers
and thunderstorms after midnight.
.THURSDAY...West winds 10 to 15 knots, becoming south 5 to
10 knots in the afternoon. Seas 2 to 3 feet. Wave Detail: West
2 feet at 4 seconds. A slight chance of showers and thunderstorms
in the morning.
.THURSDAY NIGHT...Southwest winds 10 to 15 knots. Seas 2 to
3 feet. Wave Detail: South 2 feet at 4 seconds. A slight chance
of showers and thunderstorms after midnight.
.FRIDAY...Southwest winds 5 to 10 knots, becoming south 10 to
15 knots in the afternoon. Seas around 2 feet. Wave Detail:
Southwest 2 feet at 4 seconds.
.FRIDAY NIGHT...Southwest winds 10 to 15 knots. Seas 2 to 3 feet.
A slight chance of showers and thunderstorms after midnight.
.SATURDAY...Southwest winds 5 to 10 knots, increasing to 10 to
15 knots. Seas 2 to 3 feet. A slight chance of showers and
thunderstorms in the evening.
.SUNDAY...Southwest winds 5 to 10 knots. Seas 2 to 4 feet,
occasionally to 5 feet.

Winds and seas higher in and near thunderstorms.

$$