Coastal Waters Forecast for Northeast Florida/Southeast Georgia

National Weather Service Jacksonville FL

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. Atlantic high pressure will continue to extend its axis westward across the Florida peninsula, creating a prevailing south to southwesterly wind flow across our local waters through midweek. Locally dense sea fog may develop at times on Tuesday and Wednesday, especially for the near shore waters north of St. Augustine. Onshore winds will likely surge on Wednesday afternoon and evening, resulting in Caution conditions throughout our local waters. Otherwise, a cold front that will be entering the southeastern states on Wednesday night will cross our area on Thursday afternoon and evening, accompanied by showers and possibly a few stronger thunderstorms. Strong northwesterly winds in the wake of this frontal passage will create Small Craft Advisory conditions throughout our local waters on Thursday afternoon, with these conditions continuing on Thursday night and Friday morning as high pressure briefly builds over the Mid-Atlantic states. Winds will quickly shift to northerly on Thursday night and then northeasterly by early Friday before speeds gradually diminish on Friday afternoon and evening. Another high pressure center is then expected to build over New England this weekend, creating a prevailing southeasterly wind flow across our local waters by Sunday. Shower chances may increase by late Saturday night and Sunday. .GULF STREAM. The approximate location of the west wall of the Gulf Stream as of Mar 09, 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. 68 nautical miles east southeast of St Simons Island. This data derived from NCEP Global RTOFS model.