


Coastal Waters Forecast
Issued by NWS Jacksonville, FL
Issued by NWS Jacksonville, FL
967 FZUS52 KJAX 111421 CWFJAX Coastal Waters Forecast for Northeast Florida/Southeast Georgia National Weather Service Jacksonville FL 1021 AM EDT Tue Mar 11 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. AMZ400-112200- Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm- 1021 AM EDT Tue Mar 11 2025 .SYNOPSIS... Winds and seas subside today as high pressure builds eastward across the Florida peninsula. The high extends across central Florida Wednesday into Thursday as a weak front approaches from the west and begins to stall across south Georgia. This front will lift northward as a warm front late Friday into Saturday, as a stronger frontal system approaches from the west. Small Craft Advisory conditions develop Saturday as southerly winds increase with the approach of the next front. Showers and storms preceded the frontal passage Sunday, then the front slowly settles south of the local waters through early Monday. .GULF STREAM... The approximate location of the west wall of the Gulf Stream as of Mar 08, 2025 at 1200 UTC... 57 nautical miles east of Flagler Beach. 66 nautical miles east of Saint Augustine Beach. 82 nautical miles east of Jacksonville Beach. 97 nautical miles east southeast of St Simons Island. This data courtesy of the Naval Oceanographic Office. $$ AMZ450-452-454-112200- Coastal waters from Altamaha Sound to Fernandina Beach FL out 20 NM- Coastal waters from Fernandina Beach to St. Augustine FL out 20 NM- Coastal waters from St. Augustine to Flagler Beach FL out 20 NM- 1021 AM EDT Tue Mar 11 2025 ...SMALL CRAFT EXERCISE CAUTION... .REST OF TODAY...Northwest winds 15 to 20 knots, diminishing to 5 to 10 knots this afternoon. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: Northwest 3 feet at 4 seconds. Intracoastal waters choppy. .TONIGHT...West winds around 5 knots, increasing to 5 to 10 knots after midnight. Seas 2 to 3 feet. Wave Detail: Northeast 2 feet at 9 seconds. Intracoastal waters light chop. .WEDNESDAY...West winds around 5 knots, becoming southeast in the afternoon. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at 10 seconds. Intracoastal waters light chop. .WEDNESDAY NIGHT...South winds around 10 knots, becoming southwest after midnight. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at 10 seconds and south 2 feet at 3 seconds. Intracoastal waters light chop. .THURSDAY...Southwest winds around 5 knots, becoming south in the afternoon. Seas 2 to 3 feet. Wave Detail: East 3 feet at 9 seconds. Intracoastal waters light chop. .THURSDAY NIGHT...Southwest winds 5 to 10 knots, becoming west after midnight. Seas around 2 feet. Wave Detail: East 2 feet at 8 seconds. Intracoastal waters light chop. .FRIDAY...Northeast winds 5 to 10 knots, becoming southeast. Seas 2 to 3 feet. Intracoastal waters light chop. .SATURDAY...Southeast winds 15 to 20 knots, becoming south 20 to 25 knots. Seas 2 to 3 feet, building to 4 to 6 feet, occasionally to 8 feet. Intracoastal waters rough. A slight chance of showers after midnight. $$ AMZ470-472-474-112200- 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- 1021 AM EDT Tue Mar 11 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 5 PM EDT THIS AFTERNOON... .REST OF TODAY...Northwest winds 20 to 25 knots, diminishing to 10 to 15 knots this afternoon. Seas 5 to 7 feet, occasionally to 9 feet. Wave Detail: Northwest 5 feet at 5 seconds and northeast 2 feet at 9 seconds. .TONIGHT...West winds 5 to 10 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: Northeast 4 feet at 9 seconds and northwest 2 feet at 4 seconds. .WEDNESDAY...West winds around 5 knots, becoming south in the afternoon. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: Northeast 5 feet at 10 seconds. .WEDNESDAY NIGHT...South winds 10 to 15 knots, becoming southwest after midnight. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: Northeast 4 feet at 10 seconds and south 2 feet at 3 seconds. .THURSDAY...Southwest winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: Northeast 3 feet at 8 seconds and south 2 feet at 4 seconds. .THURSDAY NIGHT...Southwest winds 10 to 15 knots, becoming west 5 to 10 knots after midnight. Seas 2 to 3 feet. Wave Detail: South 2 feet at 4 seconds and northeast 2 feet at 8 seconds. A slight chance of showers in the evening. .FRIDAY...Northeast winds 5 to 10 knots, becoming southeast 10 to 15 knots. Seas 2 to 3 feet. .SATURDAY...South winds 15 to 20 knots, increasing to 20 to 25 knots. Seas 3 to 4 feet, occasionally to 5 feet, building to 7 to 8 feet, occasionally to 10 feet. $$