Coastal Waters Forecast
Issued by NWS Jacksonville, FL
Issued by NWS Jacksonville, FL
204 FZUS52 KJAX 040529 CWFJAX Coastal Waters Forecast for Northeast Florida/Southeast Georgia National Weather Service Jacksonville FL 1229 AM EST Thu Dec 4 2025 Atlantic Coastal Waters from Altamaha Sound GA to Flagler Beach FL out to 60 nm. Seas are provided as a range of the average height of the highest 1/3 of the waves, along with the occasional height of the average highest 1/10 of the waves. AMZ400-042000- Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm- 1229 AM EST Thu Dec 4 2025 .SYNOPSIS... High pressure will build over the southeastern states today with low pressure organizing along the northern Gulf coast tonight, with a warm front lifting northward across our local waters on Friday accompanied by an increasing coverage of showers. Weak low pressure will move northeastward across southeastern Georgia on Friday evening, with this storm system`s cold front then crossing our local waters on Friday night and Saturday morning. A wave of low pressure will then develop along this front just south of the northeast Florida waters on Saturday night, keeping showers and a few embedded thunderstorms over our local waters through Sunday. Low pressure will then strengthen as it moves offshore on Sunday night and Monday, resulting in strengthening north northwesterly winds as rainfall ends. .GULF STREAM... The approximate location of the west wall of the Gulf Stream as of Dec 02, 2025 at 1200 UTC... 37 nautical miles east northeast of Flagler Beach. 38 nautical miles east northeast of Saint Augustine Beach. 41 nautical miles east of Jacksonville Beach. 58 nautical miles east southeast of St Simons Island. This data courtesy of the Naval Oceanographic Office. $$ AMZ450-452-454-042000- Coastal waters from Altamaha Sound to Fernandina Beach FL out 20 NM- Coastal waters from Fernandina Beach to St. Augustine FL out 20 NM- Coastal waters from St. Augustine to Flagler Beach FL out 20 NM- 1229 AM EST Thu Dec 4 2025 .REST OF TONIGHT...North winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: North 2 feet at 4 seconds and east 2 feet at 8 seconds. Intracoastal waters light chop. .THURSDAY...North winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: East 3 feet at 11 seconds and north 2 feet at 4 seconds. Intracoastal waters light chop. .THURSDAY NIGHT...East winds 5 to 10 knots, becoming southeast after midnight. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: East 3 feet at 10 seconds and northeast 2 feet at 4 seconds. Intracoastal waters light chop. A slight chance of showers. .FRIDAY...Southwest winds 10 to 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at 10 seconds and southeast 2 feet at 4 seconds. Intracoastal waters a moderate chop. A chance of showers. .FRIDAY NIGHT...West winds 5 to 10 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: East 3 feet at 10 seconds and southeast 2 feet at 5 seconds. Intracoastal waters light chop. A chance of showers. .SATURDAY...North winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: East 3 feet at 10 seconds and north 2 feet at 3 seconds. Intracoastal waters light chop. A chance of showers. .SATURDAY NIGHT...Northeast winds around 10 knots. Seas 2 to 4 feet, occasionally to 5 feet. Intracoastal waters light chop. Showers. .SUNDAY...Northeast winds 10 to 15 knots, becoming north. Seas 3 to 4 feet, occasionally to 5 feet. Intracoastal waters a moderate chop. Showers with a slight chance of thunderstorms through the day, then a chance of showers through the night. .MONDAY...North winds 15 to 20 knots. Seas 4 to 6 feet, occasionally to 8 feet. Intracoastal waters choppy. A slight chance of showers in the morning. Winds and waves higher in and near thunderstorms. $$ AMZ470-472-474-042000- Waters from Altamaha Sound GA to Fernandina Beach FL from 20 to 60 NM- Waters from Fernandina Beach to St. Augustine FL from 20 to 60 NM- Waters from St. Augustine to Flagler Beach FL from 20 to 60 NM- 1229 AM EST Thu Dec 4 2025 .REST OF TONIGHT...North winds around 10 knots. Seas 2 to 3 feet. Wave Detail: North 2 feet at 4 seconds and northeast 2 feet at 7 seconds. .THURSDAY...North winds 5 to 10 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at 11 seconds and north 2 feet at 5 seconds. .THURSDAY NIGHT...Northeast winds around 10 knots, becoming southeast after midnight. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at 10 seconds and southeast 2 feet at 3 seconds. A slight chance of showers in the evening. .FRIDAY...Southwest winds 10 to 15 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: South 4 feet at 5 seconds and east 4 feet at 10 seconds. A slight chance of showers in the morning, then a chance of showers in the afternoon. .FRIDAY NIGHT...West winds 10 to 15 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: South 3 feet at 5 seconds and east 3 feet at 10 seconds. A chance of showers. .SATURDAY...Northwest winds around 10 knots, becoming north in the afternoon. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 3 feet at 10 seconds and northwest 2 feet at 3 seconds. A chance of showers. .SATURDAY NIGHT...Northeast winds 10 to 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Showers. .SUNDAY...East winds 10 to 15 knots, becoming northwest 15 to 20 knots. Seas 3 to 5 feet, occasionally to 6 feet. Showers with a slight chance of thunderstorms through the day, then a chance of showers through the night. .MONDAY...North winds 15 to 20 knots. Seas 4 to 6 feet, occasionally to 8 feet. A slight chance of showers through the day. Winds and seas higher in and near thunderstorms. $$