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: 226 AM EDT Tue Jun 16 2026
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Rest Of Tonight: Southwest winds 10 to 15 knots. Seas 2 to 3 feet. Wave detail: southwest 2 feet at 3 seconds. Intracoastal waters a moderate chop.

Tuesday: West winds 10 to 15 knots, becoming southwest 5 to 10 knots in the afternoon. Seas 2 to 3 feet. Wave detail: west 2 feet at 3 seconds. Intracoastal waters a moderate chop. A chance of showers in the morning, then showers and thunderstorms likely in the afternoon.

Tuesday Night: Southwest winds 10 to 15 knots. Seas 2 to 3 feet. Wave detail: southwest 2 feet at 3 seconds. Intracoastal waters a moderate chop. A chance of showers and thunderstorms, mainly in the evening.

Wednesday: Southwest winds 10 to 15 knots. Seas 2 to 3 feet. Wave detail: southwest 2 feet at 4 seconds. Intracoastal waters a moderate chop. A chance of showers and thunderstorms.

Wednesday Night: Southwest winds 5 to 10 knots. Seas around 2 feet. Wave detail: south 2 feet at 4 seconds. Intracoastal waters light chop.

Thursday: South winds 10 to 15 knots. Seas 2 to 3 feet. Wave detail: south 2 feet at 4 seconds and southeast 2 feet at 8 seconds. Intracoastal waters a moderate chop. A chance of showers and thunderstorms in the afternoon.

Thursday Night: Southwest winds 10 to 15 knots. Seas 2 to 3 feet. Intracoastal waters a moderate chop. A slight chance of showers and thunderstorms in the evening.

Friday: Southwest winds 10 to 15 knots. Seas around 2 feet. Intracoastal waters a moderate chop. A chance of showers and thunderstorms through the night. A chance of showers with a slight chance of thunderstorms after midnight.

Saturday: West winds 10 to 15 knots, diminishing to 5 to 10 knots. Seas around 2 feet. Intracoastal waters a moderate chop. A chance of showers with a slight chance of thunderstorms in the morning, then showers likely with a chance of thunderstorms in the afternoon. A slight chance of showers and thunderstorms in the evening.

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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