Coastal Waters Forecast
Issued by NWS Jacksonville, FL
Issued by NWS Jacksonville, FL
630 FZUS52 KJAX 201502 CWFJAX Coastal Waters Forecast for Northeast Florida/Southeast Georgia National Weather Service Jacksonville FL 1102 AM EDT Thu Jun 20 2024 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. AMZ400-202145- Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm- 1102 AM EDT Thu Jun 20 2024 .SYNOPSIS... Strong high pressure centered southeast of the New England coast will sink southward over the western Atlantic waters east of the Mid Atlantic coast today with continued small craft advisory conditions locally. Weak troughing over the area waters will help to bring occasional showers and an isolated thunderstorm to the waters. Tonight, a weak low passing just north of the Bahamas with some disorganized showers and thunderstorm activity will move westward into the local waters as the high to the north shifts further east into the western Atlantic. The weak low will move onshore early Friday morning and shift west through the day towards the northeast Gulf of Mexico. The pressure gradient between the high to the northeast and the low moving through the region will continue small craft advisory conditions through much of Friday before the pressure gradient relaxes as the low departs and the high weakens to the east northeast near Bermuda into Friday night leading to diminishing winds and seas. Seabreeze circulations will create increasing coverage of showers and thunderstorms along the coast and local waters this weekend as light southeast flow prevails. A cold front will approach early next week with winds becoming more southerly and elevated chances for showers and thunderstorms. .GULF STREAM... The approximate location of the west wall of the Gulf Stream as of Jun 18, 2024 at 1200 UTC... 57 nautical miles east of Flagler Beach. 66 nautical miles east of Saint Augustine Beach. 75 nautical miles east of Jacksonville Beach. 88 nautical miles east of St Simons Island. This data courtesy of the Naval Oceanographic Office. $$ AMZ450-452-454-202145- Coastal waters from Altamaha Sound to Fernandina Beach FL out 20 NM- Coastal waters from Fernandina Beach to St. Augustine FL out 20 NM- Coastal waters from St. Augustine to Flagler Beach FL out 20 NM- 1102 AM EDT Thu Jun 20 2024 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY AFTERNOON... .REST OF TODAY...Northeast winds around 20 knots. Seas 5 to 7 feet, occasionally to 9 feet. Wave Detail: East 7 feet at 8 seconds. Intracoastal waters choppy. A slight chance of showers. .TONIGHT...Northeast winds 20 to 25 knots, diminishing to 15 to 20 knots after midnight. Seas 6 to 7 feet, occasionally to 9 feet. Wave Detail: East 7 feet at 9 seconds. Intracoastal waters rough. Showers likely with a slight chance of thunderstorms. .FRIDAY...East winds 15 to 20 knots, becoming southeast 10 to 15 knots in the afternoon. Seas 5 to 7 feet, occasionally to 9 feet. Wave Detail: East 7 feet at 9 seconds. Intracoastal waters choppy. Showers with a slight chance of thunderstorms. .FRIDAY NIGHT...Southeast winds 10 to 15 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: East 5 feet at 9 seconds. Intracoastal waters a moderate chop. A slight chance of thunderstorms. Showers likely, mainly in the evening. .SATURDAY...Southeast winds 5 to 10 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at 8 seconds. Intracoastal waters light chop. A slight chance of thunderstorms. A chance of showers in the morning, then showers in the afternoon. .SATURDAY NIGHT...Southeast winds 10 to 15 knots, becoming south 5 to 10 knots after midnight. Seas around 3 feet. Wave Detail: East 3 feet at 8 seconds. Intracoastal waters a moderate chop. A chance of showers with a slight chance of thunderstorms. .SUNDAY THROUGH MONDAY...Southwest winds 10 to 15 knots. Seas 2 to 3 feet. Intracoastal waters a moderate chop. Showers with a slight chance of thunderstorms. Winds and waves higher in and near thunderstorms. $$ AMZ470-472-474-202145- 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- 1102 AM EDT Thu Jun 20 2024 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY AFTERNOON... .REST OF TODAY...Northeast winds around 20 knots. Seas 6 to 8 feet, occasionally to 10 feet. Wave Detail: East 7 feet at 8 seconds. A chance of showers. A slight chance of thunderstorms this afternoon. .TONIGHT...Northeast winds 20 to 25 knots, becoming east 15 to 20 knots after midnight. Seas 7 to 8 feet, occasionally to 10 feet. Wave Detail: Northeast 8 feet at 9 seconds. Showers. A chance of thunderstorms, mainly in the evening. .FRIDAY...Southeast winds 15 to 20 knots. Seas 5 to 8 feet, occasionally to 10 feet. Wave Detail: East 8 feet at 9 seconds. Showers with a slight chance of thunderstorms. .FRIDAY NIGHT...Southeast winds 10 to 15 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: East 6 feet at 9 seconds. Showers likely with a slight chance of thunderstorms. .SATURDAY AND SATURDAY NIGHT...South winds 10 to 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at 8 seconds. Showers likely with a slight chance of thunderstorms. .SUNDAY THROUGH MONDAY...Southwest winds 10 to 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: South 3 feet at 4 seconds and east 3 feet at 8 seconds. Showers likely with a slight chance of thunderstorms. Winds and seas higher in and near thunderstorms. $$