Coastal Waters Forecast
Issued by NWS Jacksonville, FL
Issued by NWS Jacksonville, FL
991 FZUS52 KJAX 241550 CWFJAX Coastal Waters Forecast for Northeast Florida/Southeast Georgia National Weather Service Jacksonville FL Issued by National Weather Service New Orleans LA 1150 AM EDT Tue Sep 24 2024 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. AMZ400-242115- Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm- 1150 AM EDT Tue Sep 24 2024 .SYNOPSIS... A weak pressure pattern and light onshore flow continues today. Small Craft Advisory conditions expected to develop during the evening hours on Wednesday with the approach of Potential Tropical Cyclone Nine in the gulf on Wednesday morning, winds will continue to strengthen with tropical storm conditions possible by early Thursday and continue into Friday morning. Some gradual improvement on Friday as the system pulls away to the north. A trough may linger over the region Friday night into the weekend with winds and seas below small craft advisory levels. .GULF STREAM... The approximate location of the west wall of the Gulf Stream as of Sep 21, 2024 at 1200 UTC... 57 nautical miles east of Flagler Beach. 54 nautical miles east of Saint Augustine Beach. 65 nautical miles east southeast of Jacksonville Beach. 90 nautical miles east southeast of St Simons Island. This data courtesy of the Naval Oceanographic Office. $$ AMZ452-454-242115- Coastal waters from Fernandina Beach to St. Augustine FL out 20 NM- Coastal waters from St. Augustine to Flagler Beach FL out 20 NM- 1150 AM EDT Tue Sep 24 2024 .REST OF TODAY...Southeast winds 5 to 10 knots. Seas around 3 feet. Wave Detail: East 3 feet at 10 seconds and southeast 2 feet at 4 seconds. Intracoastal waters light chop. .TONIGHT...Southeast winds 10 to 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: Southeast 3 feet at 4 seconds and east 3 feet at 10 seconds. Intracoastal waters a moderate chop. .WEDNESDAY...Southeast winds 15 to 20 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: Southeast 5 feet at 5 seconds and east 3 feet at 11 seconds. Intracoastal waters choppy. A slight chance of showers and thunderstorms in the afternoon. .WEDNESDAY NIGHT...Southeast winds 15 to 20 knots, increasing to 20 to 25 knots after midnight. Seas 5 to 7 feet, occasionally to 9 feet. Wave Detail: East 6 feet at 6 seconds and east 3 feet at 11 seconds. Intracoastal waters rough. A chance of showers and thunderstorms in the evening, then showers likely with a slight chance of thunderstorms after midnight. .THURSDAY...Tropical storm conditions possible. Southeast winds 20 to 25 knots with gusts up to 35 knots, increasing to 25 to 35 knots with gusts up to 55 knots in the afternoon. Seas 6 to 8 feet, occasionally to 10 feet, building to 9 to 13 feet, occasionally to 17 feet in the afternoon. Wave Detail: Southeast 13 feet at 8 seconds and northeast 2 feet at 10 seconds. Intracoastal waters extremely rough. Showers with a slight chance of thunderstorms. .THURSDAY NIGHT...Tropical storm conditions possible. .FRIDAY...Southwest winds 20 to 25 knots, becoming south 15 to 20 knots in the afternoon. Seas 6 to 9 feet, occasionally to 11 feet, subsiding to 4 to 6 feet, occasionally to 8 feet in the afternoon. Intracoastal waters rough. A chance of showers with a slight chance of thunderstorms. .FRIDAY NIGHT...Southwest winds 10 to 15 knots. Seas 3 to 5 feet, occasionally to 6 feet. Intracoastal waters a moderate chop. A slight chance of showers and thunderstorms in the evening, then a chance of showers and thunderstorms after midnight. .SATURDAY...West winds 5 to 10 knots, becoming east in the afternoon. Seas around 3 feet. Intracoastal waters light chop. A chance of showers. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. .SATURDAY NIGHT...South winds 5 to 10 knots, becoming northwest after midnight. Seas 2 to 3 feet. Intracoastal waters light chop. A chance of showers. A chance of thunderstorms, mainly in the evening. Winds and waves higher in and near thunderstorms. $$ AMZ450-242115- Coastal waters from Altamaha Sound to Fernandina Beach FL out 20 NM- 1150 AM EDT Tue Sep 24 2024 .REST OF TODAY...Southeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: East 3 feet at 10 seconds. Intracoastal waters light chop. .TONIGHT...Southeast 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 4 seconds. Intracoastal waters light chop. .WEDNESDAY...Southeast winds 10 to 15 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: Southeast 4 feet at 5 seconds and east 3 feet at 11 seconds. Intracoastal waters a moderate chop. A slight chance of showers and thunderstorms in the afternoon. .WEDNESDAY NIGHT...Southeast winds 15 to 20 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: Southeast 6 feet at 6 seconds and east 2 feet at 11 seconds. Intracoastal waters choppy. A slight chance of thunderstorms. A slight chance of showers in the evening, then a chance of showers after midnight. .THURSDAY...Tropical storm conditions possible. Southeast winds 20 to 25 knots, increasing to 25 to 35 knots with gusts up to 50 knots in the afternoon. Seas 5 to 7 feet, occasionally to 9 feet, building to 8 to 11 feet, occasionally to 14 feet in the afternoon. Wave Detail: Southeast 11 feet at 7 seconds. Intracoastal waters extremely rough. A slight chance of thunderstorms. Showers. .THURSDAY NIGHT...Tropical storm conditions possible. .FRIDAY...Southwest winds 20 to 25 knots, becoming south 10 to 15 knots in the afternoon. Seas 7 to 10 feet, occasionally to 13 feet, subsiding to 5 to 7 feet, occasionally to 9 feet in the afternoon. Intracoastal waters rough. A slight chance of thunderstorms. A chance of showers, mainly in the morning. .FRIDAY NIGHT...South winds 10 to 15 knots, becoming southwest 5 to 10 knots after midnight. Seas 4 to 6 feet, occasionally to 8 feet, subsiding to 3 to 4 feet, occasionally to 5 feet after midnight. Intracoastal waters a moderate chop. A slight chance of showers. A slight chance of thunderstorms after midnight. .SATURDAY...West winds 5 to 10 knots, becoming southeast in the afternoon. Seas 2 to 4 feet, occasionally to 5 feet. Intracoastal waters light chop. A slight chance of showers in the morning, then a chance of showers with a slight chance of thunderstorms in the afternoon. .SATURDAY NIGHT...Southwest winds 5 to 10 knots, becoming northwest after midnight. Seas 2 to 3 feet. Intracoastal waters light chop. A chance of showers with a slight chance of thunderstorms. Winds and waves higher in and near thunderstorms. $$ AMZ470-472-474-242115- 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- 1150 AM EDT Tue Sep 24 2024 .REST OF TODAY...Southeast winds 5 to 10 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. .TONIGHT...Southeast winds 10 to 15 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: East 4 feet at 10 seconds and southeast 3 feet at 4 seconds. .WEDNESDAY...Southeast winds 15 to 20 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: Southeast 5 feet at 6 seconds and northeast 4 feet at 11 seconds. A slight chance of showers. A slight chance of thunderstorms in the afternoon. .WEDNESDAY NIGHT...Southeast winds 15 to 20 knots, increasing to 20 to 25 knots after midnight. Seas 5 to 8 feet, occasionally to 10 feet. Wave Detail: Southeast 7 feet at 7 seconds and east 3 feet at 11 seconds. A slight chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. .THURSDAY...Tropical storm conditions possible. Southeast winds 20 to 25 knots with gusts up to 35 knots, increasing to 25 to 35 knots with gusts up to 50 knots in the afternoon. Seas 7 to 9 feet, occasionally to 11 feet, building to 9 to 13 feet, occasionally to 17 feet in the afternoon. Wave Detail: Southeast 13 feet at 8 seconds and northeast 3 feet at 10 seconds. Showers with a slight chance of thunderstorms. .THURSDAY NIGHT...Tropical storm conditions possible. .FRIDAY...Southwest winds 20 to 25 knots, becoming south 15 to 20 knots in the afternoon. Seas 8 to 11 feet, occasionally to 14 feet, subsiding to 5 to 8 feet, occasionally to 10 feet in the afternoon. A chance of showers with a slight chance of thunderstorms. .FRIDAY NIGHT...Southwest winds 10 to 15 knots. Seas 5 to 7 feet, occasionally to 9 feet, subsiding to 4 to 5 feet, occasionally to 6 feet after midnight. A chance of showers and thunderstorms. .SATURDAY...West winds 5 to 10 knots, becoming northeast in the afternoon. Seas 3 to 4 feet, occasionally to 5 feet. A chance of showers and thunderstorms. .SATURDAY NIGHT...Southwest winds 5 to 10 knots, becoming northwest after midnight. Seas around 3 feet. A chance of showers and thunderstorms. Winds and seas higher in and near thunderstorms. $$