Coastal Waters Forecast for Coastal waters from St. Augustine to Flagler Beach FL out 20 NM (AMZ454) (Text-Only)
NWS Forecast for: Coastal waters from St. Augustine to Flagler Beach FL out 20 NM (AMZ454)
Issued by: National Weather Service Jacksonville, FL
Last Update: 226 PM EDT Wed Sep 9 2026
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Rest Of Today: East winds 10 to 15 knots. Seas around 4 feet, occasionally to 5 feet. Wave detail: east 4 feet at 8 seconds. Intracoastal waters a moderate chop. A chance of showers with a slight chance of thunderstorms.

Tonight: Southeast winds 10 to 15 knots, diminishing to 5 to 10 knots after midnight. Seas 3 to 4 feet, occasionally to 5 feet. Wave detail: east 4 feet at 8 seconds. Intracoastal waters a moderate chop. A slight chance of showers and thunderstorms after midnight.

Thursday: Southeast winds 5 to 10 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave detail: east 3 feet at 7 seconds. Intracoastal waters light chop. A slight chance of showers and thunderstorms in the afternoon.

Thursday Night: South winds 5 to 10 knots. Seas 2 to 3 feet. Wave detail: east 3 feet at 7 seconds and southeast 2 feet at 4 seconds. Intracoastal waters light chop. A slight chance of showers and thunderstorms.

Friday: Southwest winds around 5 knots, becoming southeast in the afternoon. Seas 2 to 3 feet. Wave detail: east 2 feet at 7 seconds. Intracoastal waters light chop. A slight chance of showers and thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon.

Friday Night: South winds 5 to 10 knots. Seas 2 to 3 feet. Wave detail: southeast 2 feet at 4 seconds and east 2 feet at 7 seconds. Intracoastal waters light chop. A chance of showers and thunderstorms, mainly in the evening.

Saturday: South winds 5 to 10 knots. Seas 2 to 3 feet. Intracoastal waters light chop. A chance of showers and thunderstorms through the day, then a slight chance of showers and thunderstorms through the night.

Sunday: South winds 5 to 10 knots. Seas around 2 feet. Intracoastal waters light chop. A slight chance of showers and thunderstorms.

winds and waves higher in and near thunderstorms.







Zone Forecast: Coastal waters from St. Augustine to Flagler Beach FL out 20 NM (AMZ454)

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