Coastal Waters Forecast
Issued by NWS Jacksonville, FL
Issued by NWS Jacksonville, FL
803 FZUS52 KJAX 270425 CWFJAX Coastal Waters Forecast for Northeast Florida/Southeast Georgia National Weather Service Jacksonville FL 1225 AM EDT Mon Jul 27 2026 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. AMZ400-271930- Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm- 1225 AM EDT Mon Jul 27 2026 .SYNOPSIS... A nearly stationary frontal boundary just north of the local waters will dissipate early this week. Another front will approach from the north during the middle of the week with offshore southwest winds increasing to near advisory levels from Wednesday through Friday. This will bring a return to a stormy weather pattern to the local waters late in the week and into next weekend. .GULF STREAM... The approximate location of the west wall of the Gulf Stream as of Jul 26, 2026 at 0000 UTC... 46 nautical miles east of Flagler Beach. 49 nautical miles east of Saint Augustine Beach. 60 nautical miles east southeast of Jacksonville Beach. 68 nautical miles east southeast of St Simons Island. This data derived from NCEP Global RTOFS model. $$ AMZ450-452-454-271930- 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- 1225 AM EDT Mon Jul 27 2026 .REST OF TONIGHT...West winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: South 2 feet at 4 seconds and east 2 feet at 8 seconds. Intracoastal waters a moderate chop. A chance of showers and thunderstorms late this evening, then a slight chance of showers and thunderstorms. .MONDAY...Northwest winds 5 to 10 knots, becoming southeast in the afternoon. Seas 2 to 3 feet. Wave Detail: West 2 feet at 4 seconds and east 2 feet at 8 seconds. Intracoastal waters light chop. A slight chance of showers and thunderstorms. .MONDAY NIGHT...South winds around 10 knots, becoming southwest after midnight. Seas 2 to 3 feet. Wave Detail: South 2 feet at 4 seconds and east 2 feet at 8 seconds. Intracoastal waters light chop. A slight chance of showers and thunderstorms in the evening. .TUESDAY...Southwest winds 5 to 10 knots, becoming south 10 to 15 knots in the afternoon. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at 4 seconds and east 2 feet at 8 seconds. Intracoastal waters a moderate chop. A slight chance of showers and thunderstorms in the afternoon. .TUESDAY NIGHT...Southwest winds 15 to 20 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: South 3 feet at 4 seconds and east 2 feet at 8 seconds. Intracoastal waters choppy. .WEDNESDAY...Southwest winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: Southwest 3 feet at 4 seconds. Intracoastal waters a moderate chop. Showers likely with a chance of thunderstorms in the afternoon. .WEDNESDAY NIGHT...Southwest winds 15 to 20 knots. Seas 2 to 4 feet, occasionally to 5 feet. Intracoastal waters choppy. A chance of showers and thunderstorms in the evening, then a slight chance of showers after midnight. .THURSDAY THROUGH FRIDAY...Southwest winds 15 to 20 knots. Seas 2 to 3 feet. Intracoastal waters choppy. A chance of showers and thunderstorms. Winds and waves higher in and near thunderstorms. $$ AMZ470-472-474-271930- 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- 1225 AM EDT Mon Jul 27 2026 .REST OF TONIGHT...Southwest winds 10 to 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: Southwest 3 feet at 4 seconds and east 2 feet at 8 seconds. A chance of showers and thunderstorms late this evening, then a slight chance of showers and thunderstorms. .MONDAY...West winds 10 to 15 knots, becoming southeast 5 to 10 knots in the afternoon. Seas 2 to 3 feet. Wave Detail: West 3 feet at 4 seconds and east 2 feet at 8 seconds. A slight chance of showers and thunderstorms in the morning. .MONDAY NIGHT...Southwest winds around 10 knots. Seas 2 to 3 feet. Wave Detail: South 2 feet at 4 seconds and east 2 feet at 8 seconds. A slight chance of showers and thunderstorms in the evening. .TUESDAY...Southwest winds 5 to 10 knots, becoming south 10 to 15 knots in the afternoon. Seas 2 to 3 feet. Wave Detail: Southwest 2 feet at 4 seconds and east 2 feet at 8 seconds. .TUESDAY NIGHT...Southwest winds 15 to 20 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: Southwest 4 feet at 5 seconds and east 2 feet at 8 seconds. .WEDNESDAY...Southwest winds 15 to 20 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: Southwest 4 feet at 5 seconds and east 2 feet at 8 seconds. A chance of showers and thunderstorms in the afternoon. .WEDNESDAY NIGHT...Southwest winds 15 to 20 knots. Seas 3 to 5 feet, occasionally to 6 feet. Showers likely with a chance of thunderstorms in the evening, then a chance of showers with a slight chance of thunderstorms after midnight. .THURSDAY...Southwest winds 15 to 20 knots. Seas 3 to 5 feet, occasionally to 6 feet. A chance of showers. A chance of thunderstorms . .FRIDAY...Southwest winds 10 to 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. A chance of showers. Winds and seas higher in and near thunderstorms. $$