


Coastal Waters Forecast
Issued by NWS Jacksonville, FL
Issued by NWS Jacksonville, FL
392 FZUS52 KJAX 181756 CWFJAX Coastal Waters Forecast for Northeast Florida/Southeast Georgia National Weather Service Jacksonville FL 156 PM EDT Fri Apr 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- 156 PM EDT Fri Apr 18 2025 .SYNOPSIS... A stagnant ridge of high pressure will remain stretched across the region this weekend, continuing southeasterly flow across the local waters. As the high gradually weakens this weekend, so will the winds. Next week, a front will stall to the north and local winds will be driven by the sea breeze each afternoon. .GULF STREAM... The approximate location of the west wall of the Gulf Stream as of Apr 17, 2025 at 1200 UTC... 61 nautical miles east southeast of Flagler Beach. 69 nautical miles east northeast of Saint Augustine Beach. 75 nautical miles east of Jacksonville Beach. 88 nautical miles east of St Simons Island. This data courtesy of the Naval Oceanographic Office. $$ AMZ450-452-454-190915- Coastal waters from Altamaha Sound to Fernandina Beach FL out 20 NM- Coastal waters from Fernandina Beach to St. Augustine FL out 20 NM- Coastal waters from St. Augustine to Flagler Beach FL out 20 NM- 156 PM EDT Fri Apr 18 2025 .TONIGHT...Southeast winds around 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: Southeast 4 feet at 5 seconds. Intracoastal waters a moderate chop. Slight chance of showers this evening. .SATURDAY...Southeast winds 10 to 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: Southeast 3 feet at 7 seconds. Intracoastal waters a moderate chop. .SATURDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: Southeast 4 feet at 7 seconds. Intracoastal waters a moderate chop. .SUNDAY...Southeast winds 10 to 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: Southeast 4 feet at 8 seconds. Intracoastal waters a moderate chop. .SUNDAY NIGHT AND MONDAY...Southeast winds 10 to 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: Southeast 4 feet at 8 seconds. Intracoastal waters a moderate chop. .MONDAY NIGHT...Southeast winds 10 to 15 knots, becoming south 5 to 10 knots after midnight. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: Southeast 4 feet at 8 seconds. Intracoastal waters a moderate chop. .TUESDAY THROUGH WEDNESDAY...Southeast winds 10 to 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. Intracoastal waters a moderate chop. $$ 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- 156 PM EDT Fri Apr 18 2025 .TONIGHT...Southeast winds around 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: Southeast 4 feet at 6 seconds. Slight chance of showers this evening. .SATURDAY...Southeast winds 10 to 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: Southeast 4 feet at 7 seconds. .SATURDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: Southeast 4 feet at 7 seconds. .SUNDAY...Southeast winds 10 to 15 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: Southeast 4 feet at 8 seconds. .SUNDAY NIGHT THROUGH MONDAY NIGHT...South winds 10 to 15 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: Southeast 4 feet at 8 seconds and east 2 feet at 8 seconds. .TUESDAY THROUGH WEDNESDAY...Southeast winds 10 to 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: Southeast 4 feet at 8 seconds and southeast 2 feet at 4 seconds. $$