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coastal waters forecast for northeast florida/southeast georgia
national weather service jacksonville fl
224 am edt thu jun 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.


amz450-452-182100-
coastal waters from altamaha sound to fernandina beach fl out
20 nm-
coastal waters from fernandina beach to st. augustine fl out
20 nm-
224 am edt thu jun 18 2026

...small craft exercise caution in effect from 2 pm edt this
afternoon through friday morning...

.rest of tonight...southwest winds 10 to 15 knots. seas around
2 feet. wave detail: south 2 feet at 4 seconds. intracoastal
waters a moderate chop. 
.thursday...south winds 10 to 15 knots. seas 2 to 3 feet. wave
detail: south 3 feet at 5 seconds and southeast 2 feet at
8 seconds. intracoastal waters a moderate chop. showers likely
with a chance of thunderstorms in the afternoon. 
.thursday night...south winds 10 to 15 knots, becoming southwest
15 to 20 knots after midnight. seas 2 to 3 feet. wave detail:
southeast 3 feet at 6 seconds. intracoastal waters choppy. a
chance of showers with a slight chance of thunderstorms in the
evening, then a slight chance of showers after midnight. 
.friday...southwest winds 15 to 20 knots. seas 2 to 3 feet. wave
detail: southwest 3 feet at 5 seconds. intracoastal waters
choppy. a chance of showers. a slight chance of thunderstorms in
the morning, then a chance of thunderstorms in the afternoon. 
.friday night...west winds 10 to 15 knots. seas 2 to 3 feet. wave
detail: west 2 feet at 3 seconds and southeast 2 feet at
7 seconds. intracoastal waters a moderate chop. a chance of
showers and thunderstorms. 
.saturday...west winds 5 to 10 knots. seas around 2 feet.
intracoastal waters light chop. a chance of showers and
thunderstorms in the morning, then showers with thunderstorms
likely in the afternoon. 
.saturday night...west winds around 5 knots. seas around 2 feet.
intracoastal waters smooth. a slight chance of showers and
thunderstorms in the evening. 
.sunday...southwest winds 5 to 10 knots. waves 1 foot or less,
then around 2 feet. intracoastal waters light chop. a chance of
showers and thunderstorms in the afternoon. a slight chance of
showers and thunderstorms in the evening. 
.monday...southwest winds 10 to 15 knots. seas around 2 feet.
intracoastal waters a moderate chop. 

winds and waves higher in and near thunderstorms.

$$