Coastal Waters Forecast
Issued by NWS Jacksonville, FL
Issued by NWS Jacksonville, FL
596 FZUS52 KJAX 212356 CWFJAX Coastal Waters Forecast for Northeast Florida/Southeast Georgia National Weather Service Jacksonville FL 656 PM EST Fri Nov 21 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. AMZ400-221500- Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm- 656 PM EST Fri Nov 21 2025 .SYNOPSIS... Weak high pressure ridge will sink south of the area through Saturday. A weakening and mostly dry frontal boundary will then push southward through the Georgia waters on Saturday night, with this boundary pushing across the northeast FL waters early on Sunday morning. High pressure will build eastward on Sunday towards the Mid-Atlantic states by Monday afternoon, with breezy onshore winds developing across our local waters from Sunday afternoon through Monday afternoon. A stronger cold front may then push eastward across the southeastern states on Wednesday into Thursday, with southerly winds expected to develop ahead of this front beginning on Tuesday evening. .GULF STREAM... The approximate location of the west wall of the Gulf Stream as of Nov 20, 2025 at 1200 UTC... 44 nautical miles east of Flagler Beach. 46 nautical miles east of Saint Augustine Beach. 54 nautical miles east of Jacksonville Beach. 72 nautical miles east of St Simons Island. This data courtesy of the Naval Oceanographic Office. $$ AMZ450-452-454-221500- Coastal waters from Altamaha Sound to Fernandina Beach FL out 20 NM- Coastal waters from Fernandina Beach to St. Augustine FL out 20 NM- Coastal waters from St. Augustine to Flagler Beach FL out 20 NM- 656 PM EST Fri Nov 21 2025 .REST OF TONIGHT...South winds 5 to 10 knots, becoming southwest. Waves 1 foot or less, then around 2 feet. Intracoastal waters light chop. .SATURDAY...Southwest winds 5 to 10 knots. Seas around 2 feet. Intracoastal waters light chop. .SATURDAY NIGHT...West winds 10 to 15 knots. Seas around 2 feet. Wave Detail: Southwest 2 feet at 3 seconds. Intracoastal waters a moderate chop. .SUNDAY...Northwest winds around 10 knots, becoming northeast in the afternoon. Seas around 2 feet. Wave Detail: Northwest 2 feet at 3 seconds and northeast 2 feet at 7 seconds. Intracoastal waters a moderate chop. .SUNDAY NIGHT AND MONDAY...Northeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: Northeast 3 feet at 4 seconds. Intracoastal waters a moderate chop. .MONDAY NIGHT...Southeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: Northeast 2 feet at 5 seconds. Intracoastal waters light chop. .TUESDAY THROUGH WEDNESDAY...West winds 10 to 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. Intracoastal waters a moderate chop. $$ AMZ470-472-474-221500- 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- 656 PM EST Fri Nov 21 2025 .REST OF TONIGHT...South winds 5 to 10 knots, becoming southwest. Seas around 2 feet. Wave Detail: Southwest 2 feet at 3 seconds and northeast 2 feet at 6 seconds. .SATURDAY...Southwest winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: Southwest 2 feet at 3 seconds. .SATURDAY NIGHT...West winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: Southwest 3 feet at 4 seconds. .SUNDAY...Northwest winds 10 to 15 knots, becoming north in the afternoon. Seas 2 to 3 feet. Wave Detail: Northwest 3 feet at 4 seconds and northeast 2 feet at 7 seconds. .SUNDAY NIGHT AND MONDAY...East winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: North 3 feet at 4 seconds. .MONDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: Northeast 3 feet at 5 seconds. A slight chance of showers after midnight. .TUESDAY...South winds 5 to 10 knots, increasing to 10 to 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. .WEDNESDAY...South winds 5 to 10 knots, becoming southwest 10 to 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. A slight chance of showers and thunderstorms through the night. Winds and seas higher in and near thunderstorms. $$