Coastal Waters Forecast
Issued by NWS Jacksonville, FL
Issued by NWS Jacksonville, FL
736 FZUS52 KJAX 181314 CWFJAX Coastal Waters Forecast for Northeast Florida/Southeast Georgia National Weather Service Jacksonville FL 914 AM EDT Wed Sep 18 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. AMZ400-182115- Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm- 914 AM EDT Wed Sep 18 2024 .SYNOPSIS... A weak frontal boundary and pressure pattern will linger over the region through the middle of the week. The sea breeze returns with afternoon wind shifts to onshore for the nearshore waters through Thursday. A frontal passage is expected late this week with high pressure building down the eastern seaboard by this weekend. This will lead to an increase in Northeast winds by Friday and into the weekend with Small Craft Advisory headlines possible. .GULF STREAM... The approximate location of the west wall of the Gulf Stream as of Sep 17, 2024 at 1200 UTC... 43 nautical miles east of Flagler Beach. 53 nautical miles east of Saint Augustine Beach. 68 nautical miles east of Jacksonville Beach. 88 nautical miles east of St Simons Island. This data courtesy of the Naval Oceanographic Office. $$ AMZ450-452-454-182115- 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- 914 AM EDT Wed Sep 18 2024 .REST OF TODAY...Southwest winds around 5 knots, becoming southeast this afternoon. Seas around 3 feet. Wave Detail: East 3 feet at 9 seconds. Intracoastal waters smooth. A slight chance of showers and thunderstorms this morning, then a chance of showers and thunderstorms this afternoon. .TONIGHT...South winds around 5 knots, becoming west after midnight. Seas 2 to 3 feet. Wave Detail: East 3 feet at 9 seconds. Intracoastal waters smooth. A chance of showers and thunderstorms in the evening. .THURSDAY...Northwest winds 5 to 10 knots, becoming northeast in the afternoon. Seas 2 to 3 feet. Wave Detail: East 3 feet at 9 seconds. Intracoastal waters light chop. A slight chance of showers and thunderstorms in the afternoon. .THURSDAY NIGHT...Southeast winds 5 to 10 knots, becoming northwest after midnight. Seas 2 to 3 feet. Wave Detail: East 3 feet at 10 seconds. Intracoastal waters light chop. A slight chance of showers and thunderstorms in the evening. .FRIDAY...North winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: Northeast 3 feet at 10 seconds and north 2 feet at 3 seconds. Intracoastal waters a moderate chop. A slight chance of showers and thunderstorms in the afternoon. .FRIDAY NIGHT...Northeast winds 10 to 15 knots. Seas around 3 feet. Wave Detail: Northeast 3 feet at 7 seconds. Intracoastal waters a moderate chop. .SATURDAY...Northeast winds 15 to 20 knots, diminishing to 10 to 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Intracoastal waters choppy. A slight chance of showers and thunderstorms through the night. .SUNDAY...Northeast winds 15 to 20 knots, diminishing to 10 to 15 knots. Seas 3 to 5 feet, occasionally to 6 feet. Intracoastal waters choppy. Winds and waves higher in and near thunderstorms. $$ AMZ470-472-474-182115- 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- 914 AM EDT Wed Sep 18 2024 .REST OF TODAY...West winds around 5 knots, becoming southeast this afternoon. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at 9 seconds. A slight chance of showers and thunderstorms this morning, then a chance of showers and thunderstorms this afternoon. .TONIGHT...South winds around 5 knots, becoming west after midnight. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at 9 seconds. A chance of showers and thunderstorms. .THURSDAY...Northwest winds around 10 knots, becoming north in the afternoon. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 3 feet at 10 seconds. A slight chance of showers and thunderstorms in the afternoon. .THURSDAY NIGHT...Northeast winds 5 to 10 knots, becoming northwest after midnight. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 3 feet at 10 seconds. A slight chance of showers and thunderstorms. .FRIDAY AND FRIDAY NIGHT...Northeast winds 10 to 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: Northeast 4 feet at 7 seconds and north 2 feet at 3 seconds. A slight chance of showers and thunderstorms. .SATURDAY...Northeast winds 10 to 15 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: Northeast 5 feet at 6 seconds. A slight chance of showers and thunderstorms in the morning. A chance of showers and thunderstorms through the night, then a slight chance of showers and thunderstorms after midnight. .SUNDAY...Northeast winds 10 to 15 knots. Seas 4 to 5 feet, occasionally to 6 feet. A slight chance of showers. A slight chance of thunderstorms through the night. Winds and seas higher in and near thunderstorms. $$