


Coastal Waters Forecast
Issued by NWS Jacksonville, FL
Issued by NWS Jacksonville, FL
747 FZUS52 KJAX 261730 CWFJAX Coastal Waters Forecast for Northeast Florida/Southeast Georgia National Weather Service Jacksonville FL 130 PM EDT Fri Sep 26 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. AMZ400-270800- Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm- 130 PM EDT Fri Sep 26 2025 .SYNOPSIS... Increased storminess today as a front approaches from the west with continued southerly winds. The front lingers over the area tonight into Saturday with continued waves of storms. The front moves south of the local waters Saturday. Northeast winds increase Sunday and Monday as high pressure strengthens north of the region and a potential tropical system nears the Bahamas. Building seas and increasing winds are forecast to reach Advisory levels by Monday as the tropical system tracks north of the Bahamas. An extended duration of Advisory conditions is likely next week due to elevated winds and seas. Local interests should monitor the latest forecasts on this potential tropical cyclone from the National Hurricane Center. .GULF STREAM... The approximate location of the west wall of the Gulf Stream as of Sep 25, 2025 at 1200 UTC... 47 nautical miles east northeast of Flagler Beach. 54 nautical miles east of Saint Augustine Beach. 68 nautical miles east of Jacksonville Beach. 75 nautical miles east southeast of St Simons Island. This data courtesy of the Naval Oceanographic Office. $$ AMZ450-452-454-270800- 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- 130 PM EDT Fri Sep 26 2025 .REST OF TODAY...Southeast winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southeast 2 feet at 4 seconds and east 2 feet at 10 seconds. Intracoastal waters light chop. A chance of showers and thunderstorms this afternoon. .TONIGHT...South winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at 4 seconds and east 2 feet at 10 seconds. Intracoastal waters light chop. Showers and thunderstorms likely in the evening, then a chance of showers with a slight chance of thunderstorms after midnight. .SATURDAY...West winds around 5 knots, becoming east in the afternoon. Seas around 2 feet. Wave Detail: East 2 feet at 10 seconds. Intracoastal waters light chop. A chance of showers and thunderstorms. .SATURDAY NIGHT...Southeast winds 5 to 10 knots, becoming northeast after midnight. Seas 2 to 3 feet. Wave Detail: East 2 feet at 9 seconds. Intracoastal waters light chop. A chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. .SUNDAY...Northeast winds 10 to 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: Northeast 3 feet at 4 seconds and east 3 feet at 8 seconds. Intracoastal waters a moderate chop. A chance of showers. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. .SUNDAY NIGHT...Northeast winds 15 to 20 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: Northeast 6 feet at 8 seconds and east 3 feet at 5 seconds. Intracoastal waters choppy. A chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. .MONDAY...North winds 20 to 25 knots, diminishing to 15 to 20 knots. Seas 6 to 9 feet, occasionally to 11 feet. Intracoastal waters rough. A chance of thunderstorms through the day, then a slight chance of thunderstorms in the evening. A chance of showers. .TUESDAY...Northwest winds 20 to 25 knots. Seas 6 to 9 feet, occasionally to 11 feet. Intracoastal waters rough. A chance of showers through the day. A slight chance of thunderstorms through the night. A slight chance of showers through the night. Winds and waves higher in and near thunderstorms. $$ AMZ470-472-474-270800- 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- 130 PM EDT Fri Sep 26 2025 .REST OF TODAY...Southwest winds around 5 knots, becoming south this afternoon. Seas 2 to 3 feet. Wave Detail: South 2 feet at 4 seconds and east 2 feet at 10 seconds. A slight chance of showers and thunderstorms late this morning, then a chance of showers and thunderstorms this afternoon. .TONIGHT...South winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: South 2 feet at 4 seconds and east 2 feet at 10 seconds. Showers and thunderstorms likely, mainly in the evening. .SATURDAY...Southwest winds 5 to 10 knots, becoming east in the afternoon. Seas 2 to 3 feet. Wave Detail: East 3 feet at 9 seconds and south 2 feet at 4 seconds. A chance of showers and thunderstorms. .SATURDAY NIGHT...East winds 5 to 10 knots. Seas around 3 feet. Wave Detail: East 3 feet at 8 seconds. A chance of thunderstorms. Showers. .SUNDAY...Northeast winds 10 to 15 knots, increasing to 15 to 20 knots in the afternoon. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: East 4 feet at 8 seconds and east 3 feet at 4 seconds. Showers likely with a chance of thunderstorms. .SUNDAY NIGHT...Northeast winds 15 to 20 knots. Seas 4 to 6 feet, occasionally to 8 feet, building to 6 to 9 feet, occasionally to 11 feet after midnight. Wave Detail: East 6 feet at 10 seconds and east 3 feet at 5 seconds, becoming east 8 feet at 10 seconds. Showers likely with a chance of thunderstorms. .MONDAY...North winds around 20 knots. Seas 7 to 10 feet, occasionally to 13 feet, building to 8 to 11 feet, occasionally to 14 feet. Showers likely in the morning. A chance of thunderstorms. A chance of showers. A slight chance of thunderstorms after midnight. .TUESDAY...Northwest winds 20 to 25 knots. Seas 8 to 11 feet, occasionally to 14 feet. A chance of showers with a slight chance of thunderstorms. Winds and seas higher in and near thunderstorms. $$