Coastal Waters Forecast
Issued by NWS Jacksonville, FL
Issued by NWS Jacksonville, FL
742 FZUS52 KJAX 171803 CWFJAX Coastal Waters Forecast for Northeast Florida/Southeast Georgia National Weather Service Jacksonville FL 203 PM EDT Tue Sep 17 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. AMZ400-180915- Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm- 203 PM EDT Tue Sep 17 2024 .SYNOPSIS... A leftover frontal boundary and weak 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 north of the region by this weekend and 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 14, 2024 at 1200 UTC... 64 nautical miles east of Flagler Beach. 73 nautical miles east of Saint Augustine Beach. 85 nautical miles east southeast of Jacksonville Beach. 87 nautical miles east southeast of St Simons Island. This data courtesy of the Naval Oceanographic Office. $$ AMZ450-452-454-180915- 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- 203 PM EDT Tue Sep 17 2024 .TONIGHT...Southeast winds 5 to 10 knots, becoming southwest after midnight. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at 10 seconds. Intracoastal waters light chop. A slight chance of showers. .WEDNESDAY...Southwest winds around 5 knots, becoming southeast 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 in the morning, then a chance of showers and thunderstorms in the afternoon. .WEDNESDAY NIGHT...South winds 5 to 10 knots, becoming west after midnight. Seas 2 to 3 feet. Wave Detail: East 3 feet at 9 seconds. Intracoastal waters light chop. A slight chance of thunderstorms. A chance of showers, mainly in the evening. .THURSDAY...Northwest winds around 5 knots, becoming east in the afternoon. Seas 2 to 3 feet. Wave Detail: East 3 feet at 9 seconds. Intracoastal waters smooth. A slight chance of showers and thunderstorms in the afternoon. .THURSDAY NIGHT...East winds around 5 knots, becoming north after midnight. Seas 2 to 3 feet. Wave Detail: East 3 feet at 11 seconds. Intracoastal waters light chop. A slight chance of showers and thunderstorms in the evening. .FRIDAY AND FRIDAY NIGHT...Northeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: Northeast 3 feet at 10 seconds. Intracoastal waters a moderate chop. A slight chance of showers and thunderstorms. .SATURDAY...Northeast winds 15 to 20 knots. Seas 3 to 5 feet, occasionally to 6 feet. Intracoastal waters choppy. A slight chance of showers and thunderstorms in the morning. A chance of showers and thunderstorms in the afternoon, then a slight chance of showers and thunderstorms through the night. .SUNDAY...Northeast winds 15 to 20 knots. Seas 4 to 6 feet, occasionally to 8 feet. Intracoastal waters choppy. A slight chance of showers and thunderstorms. Winds and waves higher in and near thunderstorms. $$ AMZ470-472-474-180915- 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- 203 PM EDT Tue Sep 17 2024 .TONIGHT...Southeast winds 5 to 10 knots, becoming southwest after midnight. Seas 4 to 5 feet, occasionally to 6 feet. Wave Detail: East 5 feet at 9 seconds. A slight chance of thunderstorms. A chance of showers, mainly this evening. .WEDNESDAY...West winds around 5 knots, becoming southeast in the afternoon. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 4 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. .WEDNESDAY NIGHT...South winds 5 to 10 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 thunderstorms. Showers likely, mainly in the evening. .THURSDAY...Northwest winds 5 to 10 knots, becoming northeast in the afternoon. Seas around 3 feet. Wave Detail: East 3 feet at 10 seconds. A slight chance of showers and thunderstorms. .THURSDAY NIGHT...Northeast winds around 5 knots, becoming north after midnight. Seas around 3 feet. Wave Detail: East 3 feet at 10 seconds. A chance of showers with a slight chance of thunderstorms. .FRIDAY...North winds 10 to 15 knots. Seas around 3 feet. Wave Detail: East 3 feet at 10 seconds and north 2 feet at 3 seconds. A slight chance of thunderstorms. A slight chance of showers in the morning, then a chance of showers in the afternoon. .FRIDAY NIGHT...Northeast winds 10 to 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. A chance of showers. A chance of thunderstorms, mainly in the evening. .SATURDAY...Northeast winds 15 to 20 knots. Seas 3 to 5 feet, occasionally to 6 feet, building to 5 to 6 feet, occasionally to 8 feet after midnight. A chance of showers. .SUNDAY...Northeast winds 15 to 20 knots. Seas 5 to 7 feet, occasionally to 9 feet. A slight chance of thunderstorms. A chance of showers through the day, then a slight chance of showers through the night. Winds and seas higher in and near thunderstorms. $$