


Coastal Waters Forecast
Issued by NWS Jacksonville, FL
Issued by NWS Jacksonville, FL
444 FZUS52 KJAX 241751 CWFJAX Coastal Waters Forecast for Northeast Florida/Southeast Georgia National Weather Service Jacksonville FL 151 PM EDT Sat May 24 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. AMZ400-250615- Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm- 151 PM EDT Sat May 24 2025 .SYNOPSIS... High pressure to the northwest will build more to the north through the rest of the weekend as a weak frontal boundary remains just north of the waters resulting in a weak flow pattern and afternoon sea breeze development today and Sunday. Moist south winds will develop early next week and slowly increase daily thunderstorm chances. Additionally, successive weak troughs of low pressure will track from the Gulf and into the Atlantic through the upcoming week. These disturbances will increase storm chances and wind speeds as they pass. A cold front will approach from the northwest toward the end of the week and may push through the waters next weekend. .GULF STREAM... The approximate location of the west wall of the Gulf Stream as of May 22, 2025 at 1200 UTC... 50 nautical miles east of Flagler Beach. 59 nautical miles east of Saint Augustine Beach. 75 nautical miles east of Jacksonville Beach. 87 nautical miles east southeast of St Simons Island. This data courtesy of the Naval Oceanographic Office. $$ AMZ450-452-454-250615- Coastal waters from Altamaha Sound to Fernandina Beach FL out 20 NM- Coastal waters from Fernandina Beach to St. Augustine FL out 20 NM- Coastal waters from St. Augustine to Flagler Beach FL out 20 NM- 151 PM EDT Sat May 24 2025 .REST OF TODAY...Northeast winds around 10 knots. Seas around 2 feet. Wave Detail: Northeast 2 feet at 3 seconds. Intracoastal waters light chop. .TONIGHT...South winds 5 to 10 knots. Seas around 2 feet. Wave Detail: East 2 feet at 4 seconds. Intracoastal waters light chop. .SUNDAY...South winds 5 to 10 knots, becoming southeast 10 to 15 knots in the afternoon. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at 4 seconds. Intracoastal waters a moderate chop. A chance of showers with a slight chance of thunderstorms in the afternoon. .SUNDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 4 seconds and northeast 2 feet at 8 seconds. Intracoastal waters a moderate chop. A slight chance of showers and thunderstorms in the evening. .MONDAY AND MONDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at 5 seconds and northeast 2 feet at 8 seconds. Intracoastal waters a moderate chop. A chance of showers and thunderstorms. .TUESDAY...Southeast winds 5 to 10 knots, becoming south. Seas 2 to 3 feet. Wave Detail: East 2 feet at 6 seconds and east 2 feet at 8 seconds. Intracoastal waters light chop. A slight chance of thunderstorms through the day. A chance of showers. A chance of thunderstorms in the evening, then a slight chance of showers and thunderstorms after midnight. .WEDNESDAY...South winds 5 to 10 knots. Seas 2 to 3 feet. Intracoastal waters light chop. A chance of showers in the morning, then showers likely in the afternoon. A chance of thunderstorms through the night. A chance of showers in the evening, then a slight chance of showers and thunderstorms after midnight. Winds and waves higher in and near thunderstorms. $$ AMZ470-472-474-250615- 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- 151 PM EDT Sat May 24 2025 .REST OF TODAY...Northeast winds 5 to 10 knots, becoming east this afternoon. Seas 2 to 3 feet. Wave Detail: South 2 feet at 4 seconds. .TONIGHT...South winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at 4 seconds and northeast 2 feet at 9 seconds. .SUNDAY...South winds 5 to 10 knots, becoming southeast 10 to 15 knots in the afternoon. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at 4 seconds and northeast 2 feet at 8 seconds. A slight chance of showers and thunderstorms in the afternoon. .SUNDAY NIGHT...South winds 10 to 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: South 3 feet at 4 seconds and northeast 2 feet at 8 seconds. A chance of showers with a slight chance of thunderstorms in the evening, then a slight chance of showers after midnight. .MONDAY...Southwest winds 10 to 15 knots, becoming south 5 to 10 knots in the afternoon. Seas 2 to 3 feet. Wave Detail: South 3 feet at 5 seconds and east 2 feet at 9 seconds. A chance of showers. A slight chance of thunderstorms in the afternoon. .MONDAY NIGHT...Southeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at 5 seconds and east 2 feet at 9 seconds. A chance of showers. A chance of thunderstorms, mainly in the evening. .TUESDAY THROUGH WEDNESDAY...South winds 5 to 10 knots. Seas 2 to 4 feet, occasionally to 5 feet. Showers likely with a chance of thunderstorms. Winds and seas higher in and near thunderstorms. $$