Coastal Waters Forecast for Coastal waters from Altamaha Sound to Fernandina Beach FL out 20 NM (AMZ450) (Text-Only)
NWS Forecast for: Coastal waters from Altamaha Sound to Fernandina Beach FL out 20 NM (AMZ450)
Issued by: National Weather Service Jacksonville, FL
Last Update: 130 PM EST Wed Dec 3 2025
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Tonight: Northwest winds around 10 knots, becoming north after midnight. Seas 2 to 3 feet. Wave detail: north 2 feet at 5 seconds and east 2 feet at 8 seconds. Intracoastal waters a light chop.

Thursday: North winds 5 to 10 knots, becoming north northeast and increasing to 10 to 15 knots in the afternoon. Seas 2 to 3 feet. Wave detail: east 3 feet at 11 seconds and northeast 2 feet at 4 seconds. Intracoastal waters a light chop.

Thursday Night: Northeast winds 10 to 15 knots, becoming east southeast 5 to 10 knots after midnight. Seas 2 to 4 feet, occasionally to 5 feet. Wave detail: east 3 feet at 10 seconds and northeast 2 feet at 4 seconds. Intracoastal waters becoming mostly smooth. A slight chance of showers.

Friday: South winds increasing to around 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave detail: southeast 3 feet at 5 seconds and east 3 feet at 10 seconds. Intracoastal waters becoming a moderate chop. A slight chance of showers in the morning, then a chance of showers in the afternoon.

Friday Night: Southwest winds 10 to 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave detail: southeast 3 feet at 5 seconds and east 3 feet at 10 seconds. Intracoastal waters a light chop. A chance of showers.

Saturday: Southwest winds 10 to 15 knots, becoming northwest around 15 knots during the afternoon. Seas 3 to 4 feet, occasionally to 5 feet. Wave detail: north 2 feet at 3 seconds and south 2 feet at 5 seconds. Intracoastal waters becoming a moderate chop. Showers with a slight chance of thunderstorms.

Saturday Night: Northwest winds 10 to 15 knots, becoming north around 15 knots after midnight. Seas 3 to 4 feet, occasionally to 5 feet. Wave detail: north 2 feet at 3 seconds and south 2 feet at 5 seconds. Intracoastal waters a moderate chop. Showers with a slight chance of thunderstorms.

Sunday And Sunday Night: North winds 15 to 20 knots. Seas 4 to 5 feet, occasionally to 6 feet. Intracoastal waters choppy. showers in the morning, then a chance of showers after midnight.

Monday: North northwest winds increasing to 20 to 25 knots. seas building to 5 to 6 feet, occasionally to 8 feet. intracoastal waters becoming rough. A slight chance of showers in the morning.

winds and waves higher in and near thunderstorms.







Zone Forecast: Coastal waters from Altamaha Sound to Fernandina Beach FL out 20 NM (AMZ450)

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