


Coastal Waters Forecast
Issued by NWS Jacksonville, FL
Issued by NWS Jacksonville, FL
941 FZUS52 KJAX 150126 CWFJAX Coastal Waters Forecast for Northeast Florida/Southeast Georgia National Weather Service Jacksonville FL 926 PM EDT Fri Mar 14 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. AMZ400-150915- Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm- 926 PM EDT Fri Mar 14 2025 .SYNOPSIS... High pressure will shift more to the northeast of the region into Saturday. Sea fog will likely develop tonight into early Saturday morning across the nearshore waters, focused over the southeast Georgia nearshore waters. Winds will increase during the day Saturday from the south to southeast with building seas leading to small craft advisory conditions by late Saturday evening over the Florida waters. Small craft advisory conditions will expand in to the Georgia waters Saturday night into Sunday as a line of potentially strong to severe thunderstorms moves into the waters ahead of a cold front. High pressure ridging will then build in early next week. .GULF STREAM... The approximate location of the west wall of the Gulf Stream as of Mar 13, 2025 at 1200 UTC... 64 nautical miles east of Flagler Beach. 73 nautical miles east of Saint Augustine Beach. 82 nautical miles east of Jacksonville Beach. 93 nautical miles east southeast of St Simons Island. This data courtesy of the Naval Oceanographic Office. $$ AMZ450-150915- Coastal waters from Altamaha Sound to Fernandina Beach FL out 20 NM- 926 PM EDT Fri Mar 14 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM SATURDAY EVENING THROUGH SUNDAY AFTERNOON... .REST OF TONIGHT...Southeast winds 5 to 10 knots. Seas around 2 feet. Intracoastal waters light chop. Areas of dense fog. .SATURDAY...Southeast winds 10 to 15 knots, increasing to 15 to 20 knots in the afternoon. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: Southeast 4 feet at 5 seconds. Intracoastal waters choppy. Areas of fog in the morning. .SATURDAY NIGHT...Southeast winds 15 to 20 knots, becoming south 20 to 25 knots after midnight. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: Southeast 6 feet at 7 seconds. Intracoastal waters rough. .SUNDAY...South winds 20 to 25 knots, diminishing to 15 to 20 knots in the afternoon. Seas 5 to 7 feet, occasionally to 9 feet. Wave Detail: Southeast 6 feet at 8 seconds. Intracoastal waters rough. A chance of showers in the morning, then showers likely with a chance of thunderstorms in the afternoon. .SUNDAY NIGHT...Southwest winds 10 to 15 knots, becoming west 15 to 20 knots after midnight. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: Southeast 5 feet at 7 seconds and west 2 feet at 4 seconds. Intracoastal waters choppy. A chance of thunderstorms in the evening. A chance of showers. .MONDAY...Northwest winds 10 to 15 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: Southeast 4 feet at 7 seconds and west 3 feet at 3 seconds. Intracoastal waters a moderate chop. .MONDAY NIGHT...Northwest winds around 10 knots. Seas 2 to 3 feet. Intracoastal waters light chop. .TUESDAY THROUGH WEDNESDAY...South winds 10 to 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. Intracoastal waters a moderate chop. Winds and waves higher in and near thunderstorms. $$ AMZ452-454-150915- Coastal waters from Fernandina Beach to St. Augustine FL out 20 NM- Coastal waters from St. Augustine to Flagler Beach FL out 20 NM- 926 PM EDT Fri Mar 14 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM SATURDAY AFTERNOON THROUGH SUNDAY AFTERNOON... .REST OF TONIGHT...Southeast winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southeast 2 feet at 4 seconds. Intracoastal waters light chop. Patchy fog. .SATURDAY...Southeast winds 10 to 15 knots, increasing to 15 to 20 knots in the afternoon. Seas 2 to 3 feet, building to 3 to 5 feet, occasionally to 6 feet in the afternoon. Wave Detail: Southeast 3 feet at 4 seconds, becoming southeast 5 feet at 5 seconds. Intracoastal waters choppy. Patchy fog in the morning. .SATURDAY NIGHT...South winds 20 to 25 knots. Seas 5 to 6 feet, occasionally to 8 feet. Wave Detail: Southeast 6 feet at 6 seconds. Intracoastal waters rough. .SUNDAY...South winds 20 to 25 knots, diminishing to 15 to 20 knots in the afternoon. Seas 5 to 6 feet, occasionally to 8 feet. Wave Detail: Southeast 6 feet at 8 seconds. Intracoastal waters rough. A chance of showers in the morning, then showers likely with a chance of thunderstorms in the afternoon. .SUNDAY NIGHT...Southwest winds 15 to 20 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: Southeast 5 feet at 8 seconds and west 3 feet at 4 seconds. Intracoastal waters choppy. Showers likely with a chance of thunderstorms in the evening, then a chance of showers after midnight. .MONDAY AND MONDAY NIGHT...North winds 15 to 20 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: Southeast 4 feet at 8 seconds and northwest 3 feet at 4 seconds. Intracoastal waters choppy. .TUESDAY THROUGH WEDNESDAY...South winds 10 to 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. Intracoastal waters a moderate chop. Winds and waves higher in and near thunderstorms. $$ AMZ472-474-150915- 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- 926 PM EDT Fri Mar 14 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM SATURDAY AFTERNOON THROUGH MONDAY AFTERNOON... .REST OF TONIGHT...Southeast winds 5 to 10 knots, increasing to 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at 3 seconds and northeast 2 feet at 9 seconds. .SATURDAY...Southeast winds 10 to 15 knots, increasing to 15 to 20 knots in the afternoon. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: Southeast 5 feet at 5 seconds and northeast 2 feet at 9 seconds. A slight chance of showers in the morning. .SATURDAY NIGHT...South winds 20 to 25 knots. Seas 5 to 7 feet, occasionally to 9 feet. Wave Detail: Southeast 7 feet at 7 seconds and northeast 2 feet at 9 seconds. .SUNDAY...South winds 20 to 25 knots with gusts up to 35 knots. Seas 6 to 9 feet, occasionally to 11 feet. Wave Detail: Southeast 8 feet at 8 seconds. A slight chance of showers in the morning, then showers likely with a chance of thunderstorms in the afternoon. .SUNDAY NIGHT...Southwest winds 15 to 20 knots. Seas 5 to 8 feet, occasionally to 10 feet. Wave Detail: Southeast 7 feet at 8 seconds and west 4 feet at 4 seconds. Showers likely with a chance of thunderstorms in the evening, then a chance of showers with a slight chance of thunderstorms after midnight. .MONDAY...Northwest winds 15 to 20 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: West 5 feet at 5 seconds and southeast 4 feet at 7 seconds. A slight chance of showers and thunderstorms in the morning. .MONDAY NIGHT...North winds 15 to 20 knots. Seas 4 to 5 feet, occasionally to 6 feet. .TUESDAY...North winds 15 to 20 knots, diminishing to 5 to 10 knots. Seas 3 to 5 feet, occasionally to 6 feet. .WEDNESDAY...Northeast winds 5 to 10 knots, becoming south 10 to 15 knots. Seas 4 to 6 feet, occasionally to 8 feet. Winds and seas higher in and near thunderstorms. $$ AMZ470-150915- Waters from Altamaha Sound GA to Fernandina Beach FL from 20 to 60 NM- 926 PM EDT Fri Mar 14 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM SATURDAY EVENING THROUGH MONDAY AFTERNOON... .REST OF TONIGHT...Southeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at 4 seconds and east 2 feet at 9 seconds. Patchy fog this evening. .SATURDAY...Southeast winds 10 to 15 knots, increasing to 15 to 20 knots in the afternoon. Seas 2 to 3 feet, building to 3 to 5 feet, occasionally to 6 feet in the afternoon. Wave Detail: Southeast 3 feet at 4 seconds and east 2 feet at 10 seconds, becoming southeast 4 feet at 5 seconds and east 2 feet at 9 seconds. A slight chance of showers in the morning. .SATURDAY NIGHT...South winds 20 to 25 knots. Seas 5 to 8 feet, occasionally to 10 feet. Wave Detail: Southeast 8 feet at 7 seconds. .SUNDAY...South winds 20 to 25 knots. Gusts up to 35 knots in the morning. Seas 6 to 9 feet, occasionally to 11 feet. Wave Detail: Southeast 8 feet at 8 seconds. A chance of showers in the morning, then showers likely with a chance of thunderstorms in the afternoon. .SUNDAY NIGHT...Southwest winds 15 to 20 knots. Seas 5 to 8 feet, occasionally to 10 feet. Wave Detail: Southeast 7 feet at 8 seconds and west 3 feet at 5 seconds. Showers likely with a chance of thunderstorms in the evening, then a chance of showers after midnight. .MONDAY...Northwest winds 15 to 20 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: Southeast 5 feet at 8 seconds and west 4 feet at 5 seconds. .MONDAY NIGHT...Northwest winds 10 to 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. .TUESDAY...North winds 10 to 15 knots, becoming west 5 to 10 knots. Seas 3 to 4 feet, occasionally to 5 feet. .WEDNESDAY...Northeast winds 5 to 10 knots, becoming south 10 to 15 knots. Seas 4 to 6 feet, occasionally to 8 feet. Winds and seas higher in and near thunderstorms. $$