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coastal waters forecast for northeast florida/southeast georgia
national weather service jacksonville fl
536 am edt wed mar 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.


amz452-454-120000-
coastal waters from fernandina beach to st. augustine fl out
20 nm-
coastal waters from st. augustine to flagler beach fl out 20 nm-
536 am edt wed mar 11 2026

...small craft exercise caution in effect from 5 pm edt this
afternoon through thursday morning...

.today...south winds 5 to 10 knots, becoming southeast 15 to
20 knots this afternoon. seas 3 to 4 feet, occasionally to
5 feet. wave detail: southeast 3 feet at 4 seconds and east
3 feet at 9 seconds. intracoastal waters choppy. 
.tonight...south winds 15 to 20 knots, becoming southwest 10 to
15 knots after midnight. seas 3 to 4 feet, occasionally to
5 feet. wave detail: southeast 4 feet at 5 seconds and east
2 feet at 9 seconds. intracoastal waters choppy. 
.thursday...southwest winds around 10 knots, becoming west 15 to
20 knots in the afternoon. seas 3 to 4 feet, occasionally to
5 feet. wave detail: southeast 3 feet at 5 seconds and east
3 feet at 9 seconds. intracoastal waters choppy. a chance of
showers in the morning, then showers with a slight chance of
thunderstorms in the afternoon. 
.thursday night...north winds 25 to 30 knots, becoming northeast
20 to 25 knots after midnight. seas 4 to 6 feet, occasionally to
8 feet. wave detail: northeast 6 feet at 8 seconds and north
4 feet at 5 seconds. intracoastal waters very rough. a chance of
showers, mainly in the evening. 
.friday...northeast winds 15 to 20 knots, diminishing to 10 to
15 knots in the afternoon. seas 5 to 6 feet, occasionally to
8 feet. wave detail: northeast 6 feet at 7 seconds. intracoastal
waters choppy. a slight chance of showers in the morning, then a
chance of showers in the afternoon. 
.friday night...northeast winds 5 to 10 knots. seas 4 to 5 feet,
occasionally to 6 feet. wave detail: northeast 5 feet at
8 seconds. intracoastal waters light chop. a slight chance of
showers in the evening. 
.saturday...northeast winds 10 to 15 knots, becoming southeast
5 to 10 knots. seas 3 to 4 feet, occasionally to 5 feet.
intracoastal waters a moderate chop. a chance of showers. a
slight chance of thunderstorms in the afternoon. a chance of
thunderstorms through the night. 
.sunday...southeast winds 10 to 15 knots, becoming south 15 to
20 knots. seas 3 to 4 feet, occasionally to 5 feet. intracoastal
waters choppy. a chance of thunderstorms. showers likely through
the day, then a chance of showers through the night. 

winds and waves higher in and near thunderstorms.

$$