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coastal waters forecast for northeast florida/southeast georgia
national weather service jacksonville fl
810 pm edt tue aug 18 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.


amz450-452-454-191515-
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-
810 pm edt tue aug 18 2026

.rest of tonight...west winds 10 to 15 knots. seas 2 to 3 feet.
wave detail: southwest 2 feet at 3 seconds and east 2 feet at
9 seconds. intracoastal waters a moderate chop. a slight chance
of showers and thunderstorms this evening. 
.wednesday...west winds 5 to 10 knots, becoming southeast in the
afternoon. seas 2 to 3 feet. wave detail: west 2 feet at
3 seconds and east 2 feet at 10 seconds. intracoastal waters
light chop. a slight chance of showers and thunderstorms in the
afternoon. 
.wednesday night...southwest winds 5 to 10 knots. seas 2 to
3 feet. wave detail: south 2 feet at 3 seconds and east 2 feet at
9 seconds. intracoastal waters light chop. a slight chance of
showers and thunderstorms in the evening. 
.thursday...southwest winds around 5 knots, becoming southeast in
the afternoon. seas around 2 feet. wave detail: southeast 2 feet
at 3 seconds and east 2 feet at 9 seconds. intracoastal waters
light chop. a slight chance of showers and thunderstorms in the
afternoon. 
.thursday night...southwest winds 5 to 10 knots. seas around
2 feet. wave detail: south 2 feet at 4 seconds. intracoastal
waters light chop. a slight chance of showers and thunderstorms
in the evening. 
.friday and friday night...southwest winds 10 to 15 knots. seas
2 to 3 feet. wave detail: southeast 2 feet at 4 seconds.
intracoastal waters a moderate chop. a slight chance of showers
and thunderstorms. 
.saturday through sunday...southwest winds 10 to 15 knots. seas
2 to 3 feet. intracoastal waters a moderate chop. a chance of
showers and thunderstorms. 

winds and waves higher in and near thunderstorms.

$$