Coastal Waters Forecast
Issued by NWS Jacksonville, FL
Issued by NWS Jacksonville, FL
113 FZUS52 KJAX 262144 CWFJAX Coastal Waters Forecast for Northeast Florida/Southeast Georgia National Weather Service Jacksonville FL 544 PM EDT Thu Sep 26 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. AMZ400-270915- Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm- 544 PM EDT Thu Sep 26 2024 .SYNOPSIS... Major Hurricane Helene is expected to make landfall in the big bend region of FL this evening. Helene will quickly move north northwest of the area overnight into Friday morning. High winds and seas are expected to continue and gradually improve during the day on Friday, as remnants of the tropical system move further away to the northwest. A frontal zone will be located just east of the area through the weekend into early next week. .GULF STREAM... The approximate location of the west wall of the Gulf Stream as of Sep 24, 2024 at 1200 UTC... 44 nautical miles east of Flagler Beach. 46 nautical miles east of Saint Augustine Beach. 54 nautical miles east of Jacksonville Beach. 69 nautical miles east southeast of St Simons Island. This data courtesy of the Naval Oceanographic Office. $$ AMZ450-452-454-270915- 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- 544 PM EDT Thu Sep 26 2024 ...TORNADO WATCH 685 IN EFFECT UNTIL 10 PM EDT THIS EVENING... ...TROPICAL STORM WARNING IN EFFECT... .TONIGHT...Tropical storm conditions. South winds 35 to 45 knots with gusts up to 65 knots. Seas 11 to 15 feet, occasionally to 19 feet. Wave Detail: Southeast 15 feet at 9 seconds. Intracoastal waters extremely rough. Showers likely. A slight chance of thunderstorms. .FRIDAY...Tropical storm conditions possible. Southwest winds 30 to 35 knots with gusts up to 45 knots, diminishing to 15 to 20 knots in the afternoon. Seas 8 to 11 feet, occasionally to 14 feet, subsiding to 5 to 7 feet, occasionally to 9 feet in the afternoon. Wave Detail: Southeast 11 feet at 9 seconds. Intracoastal waters extremely rough. A slight chance of showers and thunderstorms. .FRIDAY NIGHT...Southwest winds 10 to 15 knots. Seas 4 to 6 feet, occasionally to 8 feet, subsiding to 3 to 4 feet, occasionally to 5 feet after midnight. Wave Detail: Southeast 5 feet at 8 seconds and east 3 feet at 12 seconds. Intracoastal waters a moderate chop. .SATURDAY...Southwest winds 5 to 10 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: Southeast 3 feet at 7 seconds and east 2 feet at 11 seconds. Intracoastal waters light chop. A slight chance of showers and thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. .SATURDAY NIGHT...Southwest winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 7 seconds and east 2 feet at 11 seconds. Intracoastal waters light chop. A slight chance of showers and thunderstorms. .SUNDAY...Southwest winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at 6 seconds and east 2 feet at 11 seconds. Intracoastal waters light chop. A chance of showers with a slight chance of thunderstorms. .SUNDAY NIGHT...Southwest winds 5 to 10 knots. Seas 2 to 3 feet. Intracoastal waters light chop. A chance of showers with a slight chance of thunderstorms. .MONDAY...West winds 5 to 10 knots, becoming south in the afternoon. Seas around 2 feet. Intracoastal waters light chop. A chance of showers with a slight chance of thunderstorms. .MONDAY NIGHT...Southwest winds 5 to 10 knots. Seas around 2 feet. Intracoastal waters light chop. A slight chance of showers and thunderstorms. .TUESDAY...Northwest winds 5 to 10 knots, becoming northeast in the afternoon. Seas around 2 feet. Intracoastal waters light chop. A slight chance of showers and thunderstorms. .TUESDAY NIGHT...South winds 5 to 10 knots, becoming northwest after midnight. Seas around 2 feet. Intracoastal waters light chop. A slight chance of showers and thunderstorms. Winds and waves higher in and near thunderstorms. $$ AMZ470-472-474-270915- 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- 544 PM EDT Thu Sep 26 2024 ...TORNADO WATCH 685 IN EFFECT UNTIL 10 PM EDT THIS EVENING... ...TROPICAL STORM WARNING IN EFFECT... .TONIGHT...Tropical storm conditions. South winds 30 to 40 knots with gusts up to 65 knots. Seas 12 to 16 feet, occasionally to 20 feet. Wave Detail: East 16 feet at 10 seconds and southeast 15 feet at 9 seconds. Showers likely. A slight chance of thunderstorms. .FRIDAY...Tropical storm conditions possible. Southwest winds 30 to 35 knots with gusts up to 45 knots, diminishing to 15 to 20 knots in the afternoon. Seas 9 to 13 feet, occasionally to 17 feet, subsiding to 7 to 10 feet, occasionally to 13 feet in the afternoon. Wave Detail: South 13 feet at 9 seconds and east 5 feet at 12 seconds. A slight chance of showers and thunderstorms. .FRIDAY NIGHT...Southwest winds 15 to 20 knots, diminishing to 10 to 15 knots after midnight. Seas 5 to 7 feet, occasionally to 9 feet. Wave Detail: Southeast 7 feet at 9 seconds and southwest 2 feet at 4 seconds. A slight chance of showers and thunderstorms. .SATURDAY...Southwest winds 5 to 10 knots, becoming south 10 to 15 knots in the afternoon. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: Southeast 4 feet at 7 seconds and east 2 feet at 11 seconds. A chance of showers. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. .SATURDAY NIGHT...Southwest winds 10 to 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: Southeast 3 feet at 7 seconds and east 2 feet at 11 seconds. A chance of showers and thunderstorms. .SUNDAY...Southwest winds 5 to 10 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: South 3 feet at 6 seconds and east 2 feet at 10 seconds. A chance of showers with a slight chance of thunderstorms. .SUNDAY NIGHT...Southwest winds around 10 knots. Seas 2 to 3 feet. A chance of showers with a slight chance of thunderstorms. .MONDAY...West winds 5 to 10 knots, becoming southwest in the afternoon. Seas 2 to 3 feet. A chance of showers with a slight chance of thunderstorms. .MONDAY NIGHT...Southwest winds 5 to 10 knots. Seas around 2 feet. A chance of showers with a slight chance of thunderstorms. .TUESDAY...North winds 5 to 10 knots. Seas around 2 feet. A chance of showers with a slight chance of thunderstorms. .TUESDAY NIGHT...North winds 5 to 10 knots. Seas around 2 feet. A chance of showers with a slight chance of thunderstorms. Winds and seas higher in and near thunderstorms. $$