


Coastal Waters Forecast
Issued by NWS Jacksonville, FL
Issued by NWS Jacksonville, FL
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083 FZUS52 KJAX 190024 CWFJAX Coastal Waters Forecast for Northeast Florida/Southeast Georgia National Weather Service Jacksonville FL 824 PM EDT Wed Jun 18 2025 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. AMZ400-190915- Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm- 824 PM EDT Wed Jun 18 2025 .SYNOPSIS... High pressure centered over the Atlantic will extend across central Florida tonight then begin to shift across south Florida Thursday. A front will move across south Georgia Friday with an increase in local thunderstorm coverage. This front will stall and linger across the local waters this weekend. .GULF STREAM... The approximate location of the west wall of the Gulf Stream as of Jun 17, 2025 at 1200 UTC... 43 nautical miles east of Flagler Beach. 59 nautical miles east southeast of Saint Augustine Beach. 81 nautical miles east southeast of Jacksonville Beach. 93 nautical miles east southeast of St Simons Island. This data courtesy of the Naval Oceanographic Office. $$ AMZ450-452-454-190915- 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- 824 PM EDT Wed Jun 18 2025 .REST OF TONIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 4 seconds. Intracoastal waters a moderate chop. .THURSDAY...South winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 5 seconds. Intracoastal waters a moderate chop. A chance of showers and thunderstorms in the afternoon. .THURSDAY NIGHT...Southwest winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 5 seconds. Intracoastal waters a moderate chop. A chance of showers and thunderstorms. .FRIDAY...Southwest winds 5 to 10 knots, becoming southeast in the afternoon. Seas around 2 feet. Wave Detail: Southeast 2 feet at 5 seconds and east 2 feet at 8 seconds. Intracoastal waters light chop. A chance of showers and thunderstorms. .FRIDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southeast 2 feet at 4 seconds and southeast 2 feet at 8 seconds. Intracoastal waters light chop. A chance of showers and thunderstorms. .SATURDAY...Southeast winds 5 to 10 knots. Seas around 2 feet. Wave Detail: East 2 feet at 8 seconds. Intracoastal waters light chop. A chance of showers and thunderstorms. .SATURDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet. Intracoastal waters light chop. A slight chance of showers and thunderstorms in the evening. .SUNDAY...Southeast winds 5 to 10 knots. Seas around 2 feet. Intracoastal waters light chop. A slight chance of showers and thunderstorms through the day. .MONDAY...East winds 5 to 10 knots, becoming south. Seas around 2 feet. Intracoastal waters light chop. A slight chance of thunderstorms. A slight chance of showers through the day, then a chance of showers through the night. Winds and waves higher in and near thunderstorms. $$ AMZ470-472-474-190915- 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- 824 PM EDT Wed Jun 18 2025 .REST OF TONIGHT...South winds around 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: Southeast 3 feet at 4 seconds. .THURSDAY...South winds 10 to 15 knots. Seas around 3 feet. Wave Detail: South 3 feet at 5 seconds and east 2 feet at 8 seconds. A slight chance of showers and thunderstorms in the afternoon. .THURSDAY NIGHT...South winds 10 to 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: South 3 feet at 4 seconds and east 2 feet at 8 seconds. A chance of showers and thunderstorms. .FRIDAY...Southwest winds 5 to 10 knots, becoming south in the afternoon. Seas 2 to 3 feet. Wave Detail: South 2 feet at 4 seconds and southeast 2 feet at 8 seconds. A chance of showers and thunderstorms. .FRIDAY NIGHT...South winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at 4 seconds and southeast 2 feet at 8 seconds. A chance of showers and thunderstorms. .SATURDAY AND SATURDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southeast 2 feet at 8 seconds. A slight chance of showers and thunderstorms. .SUNDAY...Southeast winds 5 to 10 knots. Seas around 2 feet. A slight chance of showers and thunderstorms. .MONDAY...East winds 5 to 10 knots, becoming south. Seas around 2 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. $$