FZUS52 KJAX 150625 CWFJAX Coastal Waters Forecast for Northeast Florida/Southeast Georgia National Weather Service Jacksonville FL 225 AM EDT Wed Apr 15 2026 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. AMZ400-152100- Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm- 225 AM EDT Wed Apr 15 2026 .SYNOPSIS... High pressure ridging will be the prevailing feature through the week and into the weekend, with flow gradually shifting more southeasterly to southerly over the next several days. Next frontal passage is expected Sunday Night with potential for Small Craft Advisory conditions on Monday. .GULF STREAM... The approximate location of the west wall of the Gulf Stream as of Apr 14, 2026 at 0000 UTC... 50 nautical miles east of Flagler Beach. 53 nautical miles east of Saint Augustine Beach. 64 nautical miles east southeast of Jacksonville Beach. 80 nautical miles east southeast of St Simons Island. This data derived from NCEP Global RTOFS model. $$ AMZ450-452-454-152100- Coastal waters from Altamaha Sound to Fernandina Beach FL out 20 NM- Coastal waters from Fernandina Beach to St. Augustine FL out 20 NM- Coastal waters from St. Augustine to Flagler Beach FL out 20 NM- 225 AM EDT Wed Apr 15 2026 .REST OF TONIGHT...South winds 5 to 10 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at 9 seconds. Intracoastal waters light chop. .WEDNESDAY...South winds 5 to 10 knots, becoming southeast 10 to 15 knots in the afternoon. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at 9 seconds. Intracoastal waters a moderate chop. .WEDNESDAY NIGHT...South winds 10 to 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at 9 seconds and south 2 feet at 4 seconds. Intracoastal waters a moderate chop. .THURSDAY...South winds 5 to 10 knots, becoming southeast 10 to 15 knots in the afternoon. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 3 feet at 9 seconds. Intracoastal waters a moderate chop. .THURSDAY NIGHT...South winds 10 to 15 knots, becoming southwest 5 to 10 knots after midnight. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: Southeast 3 feet at 4 seconds and east 3 feet at 9 seconds. Intracoastal waters a moderate chop. .FRIDAY AND FRIDAY NIGHT...Southwest winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: East 3 feet at 9 seconds and southeast 2 feet at 5 seconds. Intracoastal waters a moderate chop. .SATURDAY...South winds 10 to 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. Intracoastal waters a moderate chop. .SUNDAY...Southwest winds 10 to 15 knots, becoming north 25 to 30 knots. Seas 2 to 4 feet, occasionally to 5 feet, building to 4 to 6 feet, occasionally to 8 feet after midnight. Intracoastal waters very rough. $$ AMZ470-472-474-152100- 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- 225 AM EDT Wed Apr 15 2026 .REST OF TONIGHT...South winds 5 to 10 knots. Seas around 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at 9 seconds. .WEDNESDAY...South winds 5 to 10 knots. Seas around 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at 9 seconds. .WEDNESDAY NIGHT...South winds 10 to 15 knots. Seas around 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at 9 seconds and south 2 feet at 4 seconds. .THURSDAY...South winds 5 to 10 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at 9 seconds. .THURSDAY NIGHT THROUGH FRIDAY NIGHT...Southwest winds 10 to 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at 9 seconds and southeast 3 feet at 4 seconds. .SATURDAY...South winds 10 to 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: Southeast 3 feet at 4 seconds and southeast 3 feet at 8 seconds. .SUNDAY...Southwest winds 10 to 15 knots, becoming north 25 to 30 knots. Seas 3 to 4 feet, occasionally to 5 feet, building to 5 to 7 feet, occasionally to 9 feet after midnight. A slight chance of showers and thunderstorms in the evening. A slight chance of showers after midnight. Winds and seas higher in and near thunderstorms. $$