


Coastal Waters Forecast
Issued by NWS Jacksonville, FL
Issued by NWS Jacksonville, FL
070 FZUS52 KJAX 160444 CWFJAX Coastal Waters Forecast for Northeast Florida/Southeast Georgia National Weather Service Jacksonville FL 1244 AM EDT Thu Oct 16 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. AMZ400-161945- Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm- 1244 AM EDT Thu Oct 16 2025 .SYNOPSIS... High pressure will prevail to the north northeast through Saturday. A weak coastal trough will persist through Friday. The high will move off to the east Sunday. A weakening cold front will move into the region and stall Sunday night into Monday, before lifting back to the north. Weak high pressure will be over the area Tuesday. .GULF STREAM... The approximate location of the west wall of the Gulf Stream as of Oct 11, 2025 at 1200 UTC... 56 nautical miles east northeast of Flagler Beach. 59 nautical miles east of Saint Augustine Beach. 76 nautical miles east of Jacksonville Beach. 94 nautical miles east of St Simons Island. This data courtesy of the Naval Oceanographic Office. $$ AMZ452-454-161945- Coastal waters from Fernandina Beach to St. Augustine FL out 20 NM- Coastal waters from St. Augustine to Flagler Beach FL out 20 NM- 1244 AM EDT Thu Oct 16 2025 ...SMALL CRAFT EXERCISE CAUTION IN EFFECT THROUGH FRIDAY AFTERNOON... .TODAY...Northeast winds 15 to 20 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: Northeast 6 feet at 10 seconds. Intracoastal waters choppy. .TONIGHT...Northeast winds 15 to 20 knots. Seas 5 to 6 feet, occasionally to 8 feet. Wave Detail: Northeast 6 feet at 10 seconds. Intracoastal waters choppy. .FRIDAY...Northeast winds around 15 knots. Seas 5 to 6 feet, occasionally to 8 feet. Wave Detail: Northeast 6 feet at 10 seconds. Intracoastal waters a moderate chop. .FRIDAY NIGHT...East winds 10 to 15 knots, diminishing to 5 to 10 knots after midnight. Seas 4 to 5 feet, occasionally to 6 feet. Wave Detail: Northeast 5 feet at 10 seconds. Intracoastal waters a moderate chop. .SATURDAY...East winds 5 to 10 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: Northeast 4 feet at 9 seconds. Intracoastal waters light chop. .SATURDAY NIGHT...Southeast winds 5 to 10 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at 9 seconds. Intracoastal waters light chop. .SUNDAY...South winds 10 to 15 knots. Seas 3 to 5 feet, occasionally to 6 feet. Intracoastal waters a moderate chop. A slight chance of showers and thunderstorms in the evening. A slight chance of showers after midnight. .MONDAY...Northeast winds around 10 knots, becoming southeast. Seas 3 to 4 feet, occasionally to 5 feet. Intracoastal waters light chop. Winds and waves higher in and near thunderstorms. $$ AMZ450-161945- Coastal waters from Altamaha Sound to Fernandina Beach FL out 20 NM- 1244 AM EDT Thu Oct 16 2025 .TODAY...Northeast winds 10 to 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at 10 seconds. Intracoastal waters a moderate chop. .TONIGHT...Northeast winds 10 to 15 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: East 4 feet at 10 seconds. Intracoastal waters a moderate chop. .FRIDAY...Northeast winds 10 to 15 knots. Seas 4 to 5 feet, occasionally to 6 feet. Wave Detail: East 4 feet at 10 seconds. Intracoastal waters a moderate chop. .FRIDAY NIGHT...East winds 5 to 10 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at 10 seconds. Intracoastal waters light chop. .SATURDAY...East winds 5 to 10 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at 9 seconds. Intracoastal waters light chop. .SATURDAY NIGHT...Southeast winds 5 to 10 knots, becoming south after midnight. Seas 2 to 3 feet. Wave Detail: East 3 feet at 9 seconds. Intracoastal waters light chop. .SUNDAY...South winds 10 to 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. Intracoastal waters a moderate chop. A slight chance of showers and thunderstorms in the evening. A slight chance of showers after midnight. .MONDAY...Northeast winds around 10 knots, becoming southeast. Seas 2 to 4 feet, occasionally to 5 feet. Intracoastal waters light chop. Winds and waves higher in and near thunderstorms. $$ AMZ470-472-474-161945- Waters from Altamaha Sound GA to Fernandina Beach FL from 20 to 60 NM- Waters from Fernandina Beach to St. Augustine FL from 20 to 60 NM- Waters from St. Augustine to Flagler Beach FL from 20 to 60 NM- 1244 AM EDT Thu Oct 16 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY AFTERNOON... .TODAY...Northeast winds 15 to 20 knots. Seas 5 to 7 feet, occasionally to 8 feet. Wave Detail: Northeast 6 feet at 10 seconds. .TONIGHT...Northeast winds 15 to 20 knots. Seas 5 to 7 feet, occasionally to 9 feet. Wave Detail: Northeast 6 feet at 10 seconds. .FRIDAY...Northeast winds 10 to 15 knots. Seas 5 to 7 feet, occasionally to 8 feet. Wave Detail: Northeast 6 feet at 10 seconds. .FRIDAY NIGHT...Northeast winds 10 to 15 knots, becoming east 5 to 10 knots after midnight. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: Northeast 6 feet at 9 seconds. .SATURDAY...East winds 5 to 10 knots. Seas 4 to 5 feet, occasionally to 6 feet. Wave Detail: Northeast 5 feet at 9 seconds. .SATURDAY NIGHT...Southeast winds 5 to 10 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: Northeast 4 feet at 9 seconds. .SUNDAY...South winds 10 to 15 knots. Seas 4 to 5 feet, occasionally to 6 feet. A slight chance of showers after midnight. .MONDAY...North winds 10 to 15 knots, becoming southeast 5 to 10 knots. Seas 3 to 5 feet, occasionally to 6 feet. $$