Coastal Waters Forecast
Issued by NWS Jacksonville, FL
Issued by NWS Jacksonville, FL
475 FZUS52 KJAX 300520 CWFJAX Coastal Waters Forecast for Northeast Florida/Southeast Georgia National Weather Service Jacksonville FL 120 AM EDT Mon Sep 30 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. AMZ400-302115- Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm- 120 AM EDT Mon Sep 30 2024 .SYNOPSIS... A moisture boundary over the area could produce showers and isolated storms over the local waters this afternoon. Winds will be south to southwest across the waters. Tuesday night into Wednesday, a cold front will move across the waters, shifting winds to north to northeast. High pressure will build to the north of the waters, setting up an onshore flow pattern late Wednesday and Thursday. Increasing winds and building seas are likely later on Thursday and especially Friday and Saturday. .GULF STREAM... The approximate location of the west wall of the Gulf Stream as of Sep 28, 2024 at 1200 UTC... 53 nautical miles east northeast of Flagler Beach. 54 nautical miles east northeast of Saint Augustine Beach. 55 nautical miles east of Jacksonville Beach. 71 nautical miles east southeast of St Simons Island. This data courtesy of the Naval Oceanographic Office. $$ AMZ450-452-454-302115- Coastal waters from Altamaha Sound to Fernandina Beach FL out 20 NM- Coastal waters from Fernandina Beach to St. Augustine FL out 20 NM- Coastal waters from St. Augustine to Flagler Beach FL out 20 NM- 120 AM EDT Mon Sep 30 2024 .TODAY...Southwest winds 5 to 10 knots, becoming southeast this afternoon. Seas around 2 feet. Wave Detail: Southeast 2 feet at 5 seconds and east 2 feet at 10 seconds. Intracoastal waters light chop. A slight chance of showers and thunderstorms this afternoon. .TONIGHT...South winds 5 to 10 knots, becoming west after midnight. Seas around 2 feet. Wave Detail: Southeast 2 feet at 5 seconds. Intracoastal waters light chop. A slight chance of showers and thunderstorms. .TUESDAY...Northwest winds around 5 knots, becoming east in the afternoon. Seas around 2 feet. Intracoastal waters smooth. A chance of showers with a slight chance of thunderstorms in the afternoon. .TUESDAY NIGHT...South winds around 5 knots, becoming northwest after midnight. Seas around 2 feet. Intracoastal waters light chop. A slight chance of thunderstorms. A slight chance of showers in the evening, then a chance of showers after midnight. .WEDNESDAY...Northeast winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Northeast 2 feet at 4 seconds and east 2 feet at 11 seconds. Intracoastal waters light chop. A slight chance of showers and thunderstorms in the afternoon. .WEDNESDAY NIGHT...East winds around 10 knots. Seas 2 to 3 feet. Wave Detail: Northeast 2 feet at 4 seconds and east 2 feet at 11 seconds. Intracoastal waters light chop. .THURSDAY...East winds around 10 knots. Seas 2 to 4 feet, occasionally to 5 feet. Intracoastal waters light chop. A slight chance of showers in the morning. A slight chance of thunderstorms in the afternoon. A chance of showers. .FRIDAY...East winds 10 to 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Intracoastal waters a moderate chop. A chance of showers. Winds and waves higher in and near thunderstorms. $$ AMZ470-472-474-302115- 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- 120 AM EDT Mon Sep 30 2024 .TODAY...West winds 5 to 10 knots, becoming south this afternoon. Seas 2 to 3 feet. Wave Detail: Southwest 2 feet at 5 seconds and east 2 feet at 10 seconds. A slight chance of showers and thunderstorms this afternoon. .TONIGHT...South winds around 10 knots, becoming west after midnight. Seas 2 to 3 feet. Wave Detail: South 2 feet at 5 seconds and east 2 feet at 10 seconds. A chance of showers with a slight chance of thunderstorms. .TUESDAY...Northwest winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 4 seconds and east 2 feet at 9 seconds. A slight chance of thunderstorms. A slight chance of showers in the morning, then a chance of showers in the afternoon. .TUESDAY NIGHT...South winds around 5 knots, becoming northwest after midnight. Seas around 2 feet. Wave Detail: East 2 feet at 9 seconds. A chance of showers and thunderstorms. .WEDNESDAY AND WEDNESDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: North 3 feet at 4 seconds and east 3 feet at 11 seconds. A slight chance of showers and thunderstorms. .THURSDAY...East winds 10 to 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at 10 seconds and northeast 3 feet at 5 seconds. A slight chance of showers in the morning, then a slight chance of thunderstorms in the afternoon. A chance of showers. .FRIDAY...East winds 10 to 15 knots. Seas 4 to 5 feet, occasionally to 6 feet. A slight chance of thunderstorms in the morning. A chance of showers. A chance of thunderstorms in the afternoon, then a slight chance of thunderstorms in the evening. Showers likely with a chance of thunderstorms after midnight. Winds and seas higher in and near thunderstorms. $$