


Coastal Waters Forecast
Issued by NWS Jacksonville, FL
Issued by NWS Jacksonville, FL
760 FZUS52 KJAX 200636 CWFJAX Coastal Waters Forecast for Northeast Florida/Southeast Georgia National Weather Service Jacksonville FL 236 AM EDT Sun Apr 20 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. AMZ400-202115- Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm- 236 AM EDT Sun Apr 20 2025 .SYNOPSIS...A nearly stacked area of high pressure continue southeasterly winds across the waters today. High pressure will weaken as early this upcoming week as a frontal boundary stalls to the north. Under the weak flow pattern, the afternoon sea breezes will be the primary weather feature, increasing winds across the nearshore waters around 10 to 15 knots each day. .GULF STREAM... The approximate location of the west wall of the Gulf Stream as of Apr 19, 2025 at 1200 UTC... 71 nautical miles east of Flagler Beach. 80 nautical miles east of Saint Augustine Beach. 89 nautical miles east of Jacksonville Beach. 94 nautical miles east of St Simons Island. This data courtesy of the Naval Oceanographic Office. $$ AMZ450-452-454-202115- Coastal waters from Altamaha Sound to Fernandina Beach FL out 20 NM- Coastal waters from Fernandina Beach to St. Augustine FL out 20 NM- Coastal waters from St. Augustine to Flagler Beach FL out 20 NM- 236 AM EDT Sun Apr 20 2025 .TODAY...Southeast winds 10 to 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: Southeast 4 feet at 7 seconds. Intracoastal waters a moderate chop. .TONIGHT...Southeast winds 10 to 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: Southeast 3 feet at 8 seconds. Intracoastal waters a moderate chop. .MONDAY...South winds 5 to 10 knots, becoming southeast 10 to 15 knots in the afternoon. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 8 seconds. Intracoastal waters a moderate chop. .MONDAY NIGHT...Southeast winds 10 to 15 knots, becoming south 5 to 10 knots after midnight. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 8 seconds. Intracoastal waters a moderate chop. .TUESDAY...South winds 5 to 10 knots, becoming southeast 10 to 15 knots in the afternoon. Seas 2 to 3 feet. Wave Detail: East 3 feet at 8 seconds. Intracoastal waters a moderate chop. .TUESDAY NIGHT...Southeast winds 10 to 15 knots, becoming south 5 to 10 knots after midnight. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 8 seconds and southeast 2 feet at 4 seconds. Intracoastal waters a moderate chop. .WEDNESDAY THROUGH THURSDAY...Southeast winds 5 to 10 knots. Seas 2 to 3 feet. Intracoastal waters light chop. $$ AMZ470-472-474-202115- 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- 236 AM EDT Sun Apr 20 2025 .TODAY...Southeast winds 10 to 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: Southeast 4 feet at 8 seconds. .TONIGHT...Southeast winds 10 to 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: Southeast 4 feet at 8 seconds. .MONDAY...Southeast winds 5 to 10 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: Southeast 4 feet at 8 seconds. .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. .TUESDAY AND TUESDAY NIGHT...South winds 5 to 10 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: Southeast 3 feet at 8 seconds. .WEDNESDAY THROUGH THURSDAY...Southeast winds 10 to 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: Southeast 3 feet at 9 seconds and southeast 2 feet at 5 seconds. $$