


Coastal Waters Forecast
Issued by NWS Jacksonville, FL
Issued by NWS Jacksonville, FL
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273 FZUS52 KJAX 052355 CWFJAX Coastal Waters Forecast for Northeast Florida/Southeast Georgia National Weather Service Jacksonville FL 755 PM EDT Sat Jul 5 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. AMZ400-061500- Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm- 755 PM EDT Sat Jul 5 2025 .SYNOPSIS... Tropical Storm Chantal will track slowly north-northwestward before making landfall along the South Carolina coast later tonight into Sunday morning. Breezy winds and rough seas across the coastal waters will diminish slowly tonight as the tropical storm tracks farther north and away from the local waters. Winds shift to south- southwesterly as the low over the Carolinas weakens through Tuesday. High pressure builds back northward across the Florida peninsula through mid-week. .GULF STREAM... The approximate location of the west wall of the Gulf Stream as of Jul 03, 2025 at 1200 UTC... 64 nautical miles east of Flagler Beach. 73 nautical miles east of Saint Augustine Beach. 79 nautical miles east northeast of Jacksonville Beach. 84 nautical miles east southeast of St Simons Island. This data courtesy of the Naval Oceanographic Office. $$ AMZ452-454-472-474-061500- Coastal waters from Fernandina Beach to St. Augustine FL out 20 NM- Coastal waters from St. Augustine to Flagler Beach FL out 20 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- 755 PM EDT Sat Jul 5 2025 .REST OF TONIGHT...Northwest winds 10 to 15 knots, becoming west 5 to 10 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: North 4 feet at 7 seconds and east 2 feet at 8 seconds. Intracoastal waters a moderate chop. A slight chance of showers and thunderstorms. .SUNDAY...Southwest winds 5 to 10 knots, becoming south 10 to 15 knots in the afternoon. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: Northeast 3 feet at 7 seconds and southeast 3 feet at 8 seconds. Intracoastal waters a moderate chop. A slight chance of showers and thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. .SUNDAY NIGHT...Southwest winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 7 seconds and northeast 2 feet at 7 seconds. Intracoastal waters a moderate chop. A chance of showers with a slight chance of thunderstorms in the evening, then a slight chance of showers after midnight. .MONDAY...Southwest winds around 10 knots, becoming south in the afternoon. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at 8 seconds. Intracoastal waters light chop. A slight chance of showers and thunderstorms in the afternoon. .MONDAY NIGHT...South winds 5 to 10 knots, becoming southwest after midnight. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at 4 seconds and southeast 2 feet at 8 seconds. Intracoastal waters light chop. A slight chance of thunderstorms. A slight chance of showers in the evening, then a chance of showers after midnight. .TUESDAY AND TUESDAY NIGHT...Southwest 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. .WEDNESDAY THROUGH THURSDAY...Southwest winds 10 to 15 knots. Seas 2 to 3 feet. Intracoastal waters a moderate chop. A chance of showers and thunderstorms. Winds and waves higher in and near thunderstorms. $$ AMZ450-470-061500- Coastal waters from Altamaha Sound to Fernandina Beach FL out 20 NM- Waters from Altamaha Sound GA to Fernandina Beach FL from 20 to 60 NM- 755 PM EDT Sat Jul 5 2025 ...SMALL CRAFT EXERCISE CAUTION IN EFFECT UNTIL 2 AM EDT SUNDAY... .REST OF TONIGHT...Northwest winds 10 to 15 knots, becoming west. Seas 5 to 7 feet, occasionally to 9 feet, subsiding to 3 to 5 feet, occasionally to 6 feet. Wave Detail: Northeast 6 feet at 7 seconds and southeast 2 feet at 8 seconds, becoming northeast 4 feet at 7 seconds and southeast 2 feet at 8 seconds. Intracoastal waters a moderate chop. A slight chance of thunderstorms. A chance of showers, mainly early. .SUNDAY...West winds 10 to 15 knots, becoming south in the afternoon. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: Northeast 3 feet at 7 seconds and south 2 feet at 3 seconds. Intracoastal waters a moderate chop. A slight chance of showers. A slight chance of thunderstorms in the afternoon. .SUNDAY NIGHT...Southwest winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: East 3 feet at 7 seconds and south 2 feet at 4 seconds. Intracoastal waters a moderate chop. A slight chance of showers and thunderstorms in the evening. .MONDAY...Southwest winds around 10 knots, becoming south in the afternoon. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 8 seconds and southwest 2 feet at 4 seconds. Intracoastal waters a moderate chop. A slight chance of showers and thunderstorms in the afternoon. .MONDAY NIGHT...Southwest winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 8 seconds. Intracoastal waters a moderate chop. A slight chance of showers. A slight chance of thunderstorms after midnight. .TUESDAY AND TUESDAY NIGHT...Southwest winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: South 2 feet at 4 seconds and southeast 2 feet at 8 seconds. Intracoastal waters a moderate chop. A slight chance of showers and thunderstorms. .WEDNESDAY THROUGH THURSDAY...Southwest winds 10 to 15 knots. Seas 2 to 3 feet. Intracoastal waters a moderate chop. A chance of showers and thunderstorms. Winds and waves higher in and near thunderstorms. $$