FZUS52 KJAX 150529 CWFJAX Coastal Waters Forecast for Northeast Florida/Southeast Georgia National Weather Service Jacksonville FL 1228 AM EST Sat Nov 15 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. AMZ400-152000- Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm- 1228 AM EST Sat Nov 15 2025 .SYNOPSIS... High pressure pattern will hold through today with offshore winds increasing between the high and an approaching cold front that weaken considerably as it approaches and likely stalls across the waters early next week. Light winds and fair maritime conditions continue through Thursday under the influence of high pressure. Onshore flow with a backdoor cold front will commence Thursday with a coastal trough developing Friday as winds begin to shift southerly ahead of an approaching cold front. .GULF STREAM... The approximate location of the west wall of the Gulf Stream as of Nov 13, 2025 at 1200 UTC... 50 nautical miles east northeast of Flagler Beach. 41 nautical miles east northeast of Saint Augustine Beach. 52 nautical miles east southeast of Jacksonville Beach. 87 nautical miles east southeast of St Simons Island. This data courtesy of the Naval Oceanographic Office. $$ AMZ450-452-454-152000- Coastal waters from Altamaha Sound to Fernandina Beach FL out 20 NM- Coastal waters from Fernandina Beach to St. Augustine FL out 20 NM- Coastal waters from St. Augustine to Flagler Beach FL out 20 NM- 1228 AM EST Sat Nov 15 2025 .REST OF TONIGHT...Northeast winds around 5 knots, becoming north around 5 knots. Seas around 2 feet. Wave Detail: Northeast 2 feet at 4 seconds. Intracoastal waters smooth. .SATURDAY...Northwest winds around 5 knots, becoming southeast in the afternoon. Seas around 2 feet. Wave Detail: Northeast 2 feet at 4 seconds. Intracoastal waters light chop. .SATURDAY NIGHT...Southwest winds 10 to 15 knots, becoming west after midnight. Seas 2 to 3 feet. Wave Detail: South 2 feet at 3 seconds and east 2 feet at 7 seconds. Intracoastal waters a moderate chop. .SUNDAY...West winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: West 2 feet at 3 seconds and east 2 feet at 8 seconds. Intracoastal waters a moderate chop. .SUNDAY NIGHT...West winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: West 2 feet at 3 seconds. Intracoastal waters a moderate chop. .MONDAY AND MONDAY NIGHT...Northeast winds 5 to 10 knots. Seas around 2 feet. Wave Detail: North 2 feet at 3 seconds. Intracoastal waters light chop. .TUESDAY THROUGH WEDNESDAY...South winds 5 to 10 knots. Seas around 2 feet. Intracoastal waters light chop. $$ AMZ470-472-474-152000- 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- 1228 AM EST Sat Nov 15 2025 .REST OF TONIGHT...Northeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: Northeast 2 feet at 4 seconds and southeast 2 feet at 9 seconds. .SATURDAY...Northwest winds around 5 knots, becoming southwest in the afternoon. Seas around 2 feet. Wave Detail: Northeast 2 feet at 5 seconds and east 2 feet at 8 seconds. .SATURDAY NIGHT...Southwest winds 15 to 20 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: Southwest 4 feet at 4 seconds and northeast 2 feet at 8 seconds. .SUNDAY...West winds 15 to 20 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: West 4 feet at 4 seconds and east 2 feet at 8 seconds. .SUNDAY NIGHT...West winds 15 to 20 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: West 4 feet at 4 seconds. .MONDAY AND MONDAY NIGHT...Northeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: North 3 feet at 4 seconds. .TUESDAY THROUGH WEDNESDAY...Southeast winds 5 to 10 knots. Seas 2 to 3 feet. $$