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: 1233 PM EDT Sat Jul 5 2025
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Rest Of Today: North winds 20 to 25 knots, diminishing to 15 to 20 knots this afternoon. Seas 5 to 7 feet, occasionally to 9 feet. Wave detail: northeast 6 feet at 7 seconds. Intracoastal waters rough. A chance of showers. A slight chance of thunderstorms late this morning, then a chance of thunderstorms this afternoon.

Tonight: Northwest winds 10 to 15 knots, becoming west after midnight. Seas 4 to 6 feet, occasionally to 8 feet. Wave detail: northeast 6 feet at 7 seconds. Intracoastal waters a moderate chop. A slight chance of thunderstorms. A chance of showers, mainly in the evening.

Sunday: West winds 10 to 15 knots, becoming south in the afternoon. Seas 2 to 4 feet, occasionally to 5 feet. Wave detail: northeast 4 feet at 7 seconds and south 2 feet at 3 seconds. Intracoastal waters a moderate chop. A slight chance of showers. A slight chance of thunderstorms in the afternoon.

Sunday Night: Southwest winds 10 to 15 knots. Seas 2 to 3 feet. Wave detail: southeast 3 feet at 7 seconds and south 2 feet at 4 seconds. Intracoastal waters a moderate chop. A slight chance of showers and thunderstorms in the evening.

Monday: Southwest winds around 10 knots, becoming south in the afternoon. Seas 2 to 3 feet. Wave detail: southeast 3 feet at 8 seconds and southwest 2 feet at 4 seconds. Intracoastal waters a moderate chop. A slight chance of showers and thunderstorms in the afternoon.

Monday Night: Southwest winds 10 to 15 knots. Seas 2 to 3 feet. Wave detail: southeast 3 feet at 8 seconds. Intracoastal waters a moderate chop. A slight chance of showers. A slight chance of thunderstorms after midnight.

Tuesday: Southwest winds 5 to 10 knots, increasing to 10 to 15 knots. Seas 2 to 3 feet. Intracoastal waters a moderate chop. A slight chance of showers and thunderstorms.

Wednesday: South winds 10 to 15 knots. Seas 2 to 3 feet. Intracoastal waters a moderate chop. A chance of showers.

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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