Coastal Waters Forecast
Issued by NWS Jacksonville, FL
Issued by NWS Jacksonville, FL
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175 FZUS52 KJAX 130543 CWFJAX Coastal Waters Forecast for Northeast Florida/Southeast Georgia National Weather Service Jacksonville FL 1243 AM EST Fri Feb 13 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. AMZ400-132045- Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm- 1243 AM EST Fri Feb 13 2026 .SYNOPSIS... High pressure ridging will persist along the southeastern seaboard through tonight as a frontal boundary remains stalled just south of the area. A northeast to easterly onshore flow will persist through Saturday with the position of high pressure ridging. High pressure then moves east of the region Saturday Night and Sunday as a frontal system approaches the area Sunday Night, moving across area waters through Monday. Showers as well as isolated thunderstorms will be expected Sunday Night through Monday as the system moves through. High pressure ridging will then build back down the southeastern coast on Tuesday before weakening by mid week. .GULF STREAM... The approximate location of the west wall of the Gulf Stream as of Feb 12, 2026 at 0000 UTC... 54 nautical miles east of Flagler Beach. 62 nautical miles east of Saint Augustine Beach. 74 nautical miles east southeast of Jacksonville Beach. 71 nautical miles east southeast of St Simons Island. This data derived from NCEP Global RTOFS model. $$ AMZ450-452-454-132045- 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- 1243 AM EST Fri Feb 13 2026 .REST OF TONIGHT...Northeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: Northeast 3 feet at 5 seconds. Intracoastal waters light chop. .FRIDAY...North winds 10 to 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: Northeast 3 feet at 6 seconds. Intracoastal waters a moderate chop. .FRIDAY NIGHT...Northeast winds 10 to 15 knots. Seas around 3 feet. Wave Detail: Northeast 3 feet at 7 seconds. Intracoastal waters a moderate chop. .SATURDAY...East winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: Northeast 3 feet at 7 seconds. Intracoastal waters light chop. .SATURDAY NIGHT...Southeast winds 5 to 10 knots, increasing to 10 to 15 knots after midnight. Seas 2 to 3 feet. Wave Detail: East 3 feet at 8 seconds and southeast 2 feet at 4 seconds. Intracoastal waters a moderate chop. A slight chance of showers after midnight. .SUNDAY...South winds 10 to 15 knots, increasing to 15 to 20 knots in the afternoon. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: Southeast 4 feet at 5 seconds and northeast 2 feet at 8 seconds. Intracoastal waters choppy. A chance of showers in the morning, then showers likely with a slight chance of thunderstorms in the afternoon. .SUNDAY NIGHT...South winds 15 to 20 knots, becoming southwest 10 to 15 knots after midnight. Seas 3 to 5 feet, occasionally to 6 feet. Intracoastal waters choppy. Showers. A slight chance of thunderstorms in the evening, then a chance of thunderstorms after midnight. .MONDAY...Northwest winds 10 to 15 knots, becoming north. Seas 2 to 4 feet, occasionally to 5 feet. Intracoastal waters a moderate chop. Showers likely in the morning. A slight chance of thunderstorms through the day. A chance of showers in the afternoon, then a slight chance of showers in the evening. .TUESDAY...Northeast winds 5 to 10 knots. Seas 3 to 5 feet, occasionally to 6 feet. Intracoastal waters light chop. A slight chance of showers in the afternoon. Winds and waves higher in and near thunderstorms. $$ AMZ470-472-474-132045- 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- 1243 AM EST Fri Feb 13 2026 .REST OF TONIGHT...Northeast winds 5 to 10 knots. Seas around 3 feet. Wave Detail: Northeast 3 feet at 6 seconds. .FRIDAY...North winds 10 to 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: Northeast 3 feet at 7 seconds. .FRIDAY NIGHT...Northeast winds 10 to 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: Northeast 3 feet at 7 seconds. .SATURDAY...East winds around 10 knots. Seas 2 to 3 feet. Wave Detail: Northeast 3 feet at 8 seconds. .SATURDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: Southeast 3 feet at 5 seconds and northeast 3 feet at 8 seconds. A slight chance of showers after midnight. .SUNDAY...South winds 15 to 20 knots. Seas 3 to 4 feet, occasionally to 5 feet, building to 4 to 6 feet, occasionally to 8 feet in the afternoon. Wave Detail: Southeast 4 feet at 5 seconds and northeast 2 feet at 8 seconds, becoming south 5 feet at 6 seconds and northeast 2 feet at 7 seconds. A slight chance of thunderstorms. A chance of showers in the morning, then showers likely in the afternoon. .SUNDAY NIGHT...South winds 15 to 20 knots. Seas 4 to 6 feet, occasionally to 8 feet. Showers. A slight chance of thunderstorms in the evening, then a chance of thunderstorms after midnight. .MONDAY...Northwest winds 15 to 20 knots, becoming northeast 10 to 15 knots. Seas 4 to 6 feet, occasionally to 8 feet, subsiding to 3 to 4 feet, occasionally to 5 feet. Showers likely in the morning. A slight chance of thunderstorms. A chance of showers through the night, then a slight chance of showers after midnight. .TUESDAY...Northeast winds 5 to 10 knots. Seas 4 to 6 feet, occasionally to 8 feet. A slight chance of showers through the day. Winds and seas higher in and near thunderstorms. $$