| NWS Forecast for: Coastal waters from Fernandina Beach to St. Augustine FL out 20 NM (AMZ452) Issued by: National Weather Service Jacksonville, FL Last Update: 839 PM EDT Thu Mar 12 2026 |  |
Rest Of Tonight: Northeast winds 25 to 35 knots. Seas 5 to 8 feet, occasionally to 10 feet. Wave detail: northeast 8 feet at 8 seconds and north 5 feet at 4 seconds. Intracoastal waters extremely rough. Friday: East winds 15 to 20 knots, becoming northeast 5 to 10 knots in the afternoon. Seas 5 to 7 feet, occasionally to 9 feet. Wave detail: northeast 7 feet at 8 seconds. Intracoastal waters choppy. Friday Night: Northeast winds around 5 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave detail: northeast 5 feet at 8 seconds. Intracoastal waters smooth. Saturday: Northeast winds 5 to 10 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave detail: east 4 feet at 8 seconds. Intracoastal waters light chop. A slight chance of showers in the afternoon. Saturday Night: East winds 5 to 10 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave detail: east 4 feet at 8 seconds. Intracoastal waters light chop. A slight chance of showers and thunderstorms in the evening, then a chance of showers and thunderstorms after midnight. Sunday: Southeast winds 5 to 10 knots, increasing to 10 to 15 knots in the afternoon. Seas 2 to 4 feet, occasionally to 5 feet. Wave detail: east 3 feet at 8 seconds and southeast 2 feet at 5 seconds. Intracoastal waters a moderate chop. Showers likely with a slight chance of thunderstorms in the morning, then showers with a chance of thunderstorms in the afternoon. Sunday Night: South winds 15 to 20 knots. Seas 3 to 5 feet, occasionally to 6 feet. Intracoastal waters choppy. Showers likely. A chance of thunderstorms, mainly in the evening. Monday: Southwest winds 15 to 20 knots, becoming northwest 25 to 30 knots. Seas 5 to 7 feet, occasionally to 9 feet. Intracoastal waters very rough. A slight chance of thunderstorms in the morning. Showers likely through the day. A chance of thunderstorms in the afternoon, then a chance of showers with a slight chance of thunderstorms in the evening. A slight chance of showers after midnight. Tuesday: Northwest winds 20 to 25 knots, becoming north 15 to 20 knots. Seas 5 to 7 feet, occasionally to 9 feet, subsiding to 3 to 5 feet, occasionally to 6 feet. Intracoastal waters rough. winds and waves higher in and near thunderstorms. | |
| Zone Forecast: Coastal waters from Fernandina Beach to St. Augustine FL out 20 NM (AMZ452) | |
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