Coastal Waters Forecast
Issued by NWS Jacksonville, FL
Issued by NWS Jacksonville, FL
515 FZUS52 KJAX 020626 CWFJAX Coastal Waters Forecast for Northeast Florida/Southeast Georgia National Weather Service Jacksonville FL 225 AM EDT Fri Oct 2 2026 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. AMZ400-022100- Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm- 225 AM EDT Fri Oct 2 2026 .SYNOPSIS... High pressure ridge over the western Atlantic through the weekend will bring breezy southeast winds over local waters while a surge of tropical moisture promotes increasing showers and thunderstorms. By early next week, strong high pressure will wedge down the east coast, pushing the cold front through the local waters by Monday night. This will bring a sharp surge of northeast winds and building seas, making Small Craft Advisory conditions likely on Monday night, with wind gusts potentially reaching Gale Force and seas rising to 8 to 10 feet or higher offshore Tuesday through at least Thursday. .GULF STREAM... The approximate location of the west wall of the Gulf Stream as of Oct 01, 2026 at 0000 UTC... 58 nautical miles east of Flagler Beach. 62 nautical miles east of Saint Augustine Beach. 74 nautical miles east southeast of Jacksonville Beach. 71 nautical miles east southeast of St Simons Island. This data derived from NCEP Global RTOFS model. $$ AMZ450-452-454-022100- 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- 225 AM EDT Fri Oct 2 2026 .REST OF TONIGHT...Southeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 4 seconds. Intracoastal waters a moderate chop. A slight chance of showers and thunderstorms. .FRIDAY...Southeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 5 seconds. Intracoastal waters light chop. A chance of showers. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. .FRIDAY 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 11 seconds. Intracoastal waters light chop. A chance of showers. A chance of thunderstorms, mainly in the evening. .SATURDAY...East winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at 5 seconds and east 2 feet at 10 seconds. Intracoastal waters light chop. A chance of showers and thunderstorms. .SATURDAY NIGHT...Southeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 6 seconds. Intracoastal waters light chop. A chance of showers. A chance of thunderstorms, mainly in the evening. .SUNDAY AND SUNDAY NIGHT...Southeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at 7 seconds. Intracoastal waters light chop. Showers with a chance of thunderstorms. .MONDAY...North winds 5 to 10 knots, becoming northeast 15 to 20 knots. Seas 2 to 4 feet, occasionally to 5 feet. Intracoastal waters choppy. Showers with a chance of thunderstorms through the day, then showers with a slight chance of thunderstorms through the night. .TUESDAY...Northeast winds 30 to 35 knots, becoming 25 to 35 knots. Seas 3 to 5 feet, occasionally to 6 feet, building to 7 to 10 feet, occasionally to 13 feet. Intracoastal waters extremely rough. Showers. Winds and waves higher in and near thunderstorms. $$ AMZ470-472-474-022100- 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- 225 AM EDT Fri Oct 2 2026 .REST OF TONIGHT...Southeast winds 10 to 15 knots. Seas around 3 feet. Wave Detail: Southeast 3 feet at 4 seconds and east 2 feet at 10 seconds. A chance of showers with a slight chance of thunderstorms. .FRIDAY...Southeast winds 5 to 10 knots. Seas around 3 feet. Wave Detail: Southeast 3 feet at 5 seconds and east 2 feet at 10 seconds. A chance of showers with a slight chance of thunderstorms. .FRIDAY NIGHT...Southeast winds around 10 knots. Seas around 3 feet. Wave Detail: Southeast 2 feet at 5 seconds and east 2 feet at 10 seconds. A chance of showers and thunderstorms. .SATURDAY...Southeast winds 5 to 10 knots, becoming east 10 to 15 knots in the afternoon. Seas around 3 feet. Wave Detail: Southeast 3 feet at 7 seconds and east 2 feet at 10 seconds. A chance of thunderstorms. A chance of showers in the morning, then showers likely in the afternoon. .SATURDAY NIGHT THROUGH SUNDAY NIGHT...South winds 10 to 15 knots. Seas around 3 feet. Wave Detail: Southeast 3 feet at 7 seconds and east 2 feet at 11 seconds. Showers likely with a chance of thunderstorms. .MONDAY...North winds 5 to 10 knots, becoming northeast 15 to 20 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: East 3 feet at 6 seconds. Showers with a chance of thunderstorms, then showers with a slight chance of thunderstorms after midnight. .TUESDAY...Northeast winds 25 to 30 knots. Seas 4 to 6 feet, occasionally to 8 feet, building to 8 to 11 feet, occasionally to 14 feet. Showers. A chance of thunderstorms through the day, then a slight chance of thunderstorms through the night. Winds and seas higher in and near thunderstorms. $$