| 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: 224 PM EDT Thu Apr 16 2026 | |
| Rest Of Today: Southeast winds 10 to 15 knots. Seas around 3 feet. Wave detail: east 3 feet at 9 seconds. Intracoastal waters a moderate chop. Tonight: South winds 10 to 15 knots, becoming southwest 5 to 10 knots after midnight. 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 a moderate chop. Friday: Southwest winds 5 to 10 knots, becoming southeast 10 to 15 knots in the afternoon. Seas 2 to 3 feet. Wave detail: east 3 feet at 9 seconds. Intracoastal waters a moderate chop. Friday Night: South winds 10 to 15 knots, becoming southwest 5 to 10 knots after midnight. Seas 2 to 3 feet. Wave detail: east 3 feet at 8 seconds and southeast 2 feet at 4 seconds. Intracoastal waters a moderate chop. Saturday: South winds 5 to 10 knots, becoming southeast 15 to 20 knots in the afternoon. Seas 2 to 4 feet, occasionally to 5 feet. Wave detail: southeast 3 feet at 4 seconds and east 3 feet at 8 seconds. Intracoastal waters choppy. Saturday Night: South winds 10 to 15 knots, becoming southwest 5 to 10 knots after midnight. Seas 2 to 4 feet, occasionally to 5 feet. Wave detail: southeast 3 feet at 5 seconds and east 2 feet at 8 seconds. Intracoastal waters a moderate chop. Sunday: Southwest winds 10 to 15 knots, becoming northeast 25 to 30 knots. Seas 2 to 3 feet, building to 5 to 7 feet, occasionally to 9 feet. Intracoastal waters very rough. A slight chance of showers and thunderstorms in the evening. Monday: Northeast winds 25 to 30 knots, diminishing to 20 to 25 knots. Seas 7 to 10 feet, occasionally to 13 feet, subsiding to 5 to 7 feet, occasionally to 9 feet after midnight. Intracoastal waters very rough. 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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