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: 231 AM EDT Sun Jun 15 2025
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Today: South winds 5 to 10 knots, increasing to 10 to 15 knots this afternoon. Seas 2 to 3 feet. Wave detail: southeast 3 feet at 9 seconds. Intracoastal waters a moderate chop. A slight chance of showers this morning, then a chance of showers and thunderstorms this afternoon.

Tonight: South winds 10 to 15 knots, becoming southwest 5 to 10 knots after midnight. Seas 2 to 3 feet. Wave detail: southeast 3 feet at 8 seconds and southeast 2 feet at 5 seconds. Intracoastal waters a moderate chop. A slight chance of showers and thunderstorms in the evening.

Monday: South winds 5 to 10 knots, increasing to 10 to 15 knots in the afternoon. Seas 2 to 3 feet. Wave detail: southeast 3 feet at 8 seconds and southeast 2 feet at 5 seconds. Intracoastal waters a moderate chop. A slight chance of showers and thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon.

Monday Night: South winds 10 to 15 knots. Seas 2 to 3 feet. Wave detail: southeast 3 feet at 5 seconds and southeast 3 feet at 8 seconds. Intracoastal waters a moderate chop. A chance of showers and thunderstorms in the evening.

Tuesday And Tuesday Night: South winds 10 to 15 knots. Seas 2 to 3 feet. Wave detail: southeast 3 feet at 4 seconds and southeast 2 feet at 8 seconds. Intracoastal waters a moderate chop. A slight chance of showers and thunderstorms.

Wednesday: South winds 10 to 15 knots. Seas 2 to 3 feet. Wave detail: southeast 3 feet at 4 seconds and east 2 feet at 8 seconds. Intracoastal waters a moderate chop. A slight chance of showers and thunderstorms through the night.

Thursday: South winds 10 to 15 knots. Seas 2 to 3 feet. Intracoastal waters a moderate chop. A slight chance of showers and thunderstorms in the morning, then a chance of thunderstorms in the afternoon. A chance of showers through the night. A slight chance of thunderstorms through the night. A slight chance of showers after midnight.

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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