AMZ400-110330-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
817 AM EDT Tue Mar 10 2026
.SYNOPSIS...
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 Today 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.
$$
AMZ450-452-454-110330- 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- 817 AM EDT Tue Mar 10 2026 REST OF TODAY Southwest winds around 5 knots, becoming southeast this afternoon. Seas around 3 feet. Wave Detail: East 3 feet at 9 seconds. Intracoastal waters light chop. Patchy dense fog this morning. TONIGHT South winds 5 to 10 knots. Seas around 3 feet. Wave Detail: East 3 feet at 9 seconds and southeast 2 feet at 3 seconds. Intracoastal waters light chop. WEDNESDAY South winds 5 to 10 knots, becoming southeast 15 to 20 knots in the afternoon. 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 choppy. WEDNESDAY NIGHT South winds 15 to 20 knots, diminishing to 10 to 15 knots after midnight. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: Southeast 4 feet at 5 seconds and east 2 feet at 9 seconds. Intracoastal waters choppy. THURSDAY Southwest winds 10 to 15 knots, becoming west 15 to 20 knots in the afternoon. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: Southeast 3 feet at 6 seconds and east 3 feet at 9 seconds. Intracoastal waters choppy. A chance of showers in the morning, then showers with a slight chance of thunderstorms in the afternoon. THURSDAY NIGHT Northeast winds 25 to 30 knots. Seas 4 to 6 feet, occasionally to 8 feet, building to 5 to 8 feet, occasionally to 10 feet after midnight. Wave Detail: East 6 feet at 9 seconds and north 3 feet at 4 seconds, becoming north 8 feet at 6 seconds. Intracoastal waters very rough. Showers likely with a slight chance of thunderstorms in the evening, then a chance of showers after midnight. FRIDAY Northeast winds 20 to 25 knots, diminishing to 5 to 10 knots. Seas 5 to 8 feet, occasionally to 10 feet, subsiding to 4 to 6 feet, occasionally to 8 feet. Intracoastal waters rough. A chance of showers through the day, then a slight chance of showers through the night. SATURDAY Northeast winds 5 to 10 knots, becoming southeast. Seas 3 to 5 feet, occasionally to 6 feet. Intracoastal waters light chop. A chance of showers through the day. A slight chance of thunderstorms in the afternoon, then a slight chance of showers in the evening. A chance of showers with a slight chance of thunderstorms after midnight. Winds and waves higher in and near thunderstorms. $$
AMZ450-452-454-110330- 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- 817 AM EDT Tue Mar 10 2026 REST OF TODAY Southwest winds around 5 knots, becoming southeast this afternoon. Seas around 3 feet. Wave Detail: East 3 feet at 9 seconds. Intracoastal waters light chop. Patchy dense fog this morning. TONIGHT South winds 5 to 10 knots. Seas around 3 feet. Wave Detail: East 3 feet at 9 seconds and southeast 2 feet at 3 seconds. Intracoastal waters light chop. WEDNESDAY South winds 5 to 10 knots, becoming southeast 15 to 20 knots in the afternoon. 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 choppy. WEDNESDAY NIGHT South winds 15 to 20 knots, diminishing to 10 to 15 knots after midnight. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: Southeast 4 feet at 5 seconds and east 2 feet at 9 seconds. Intracoastal waters choppy. THURSDAY Southwest winds 10 to 15 knots, becoming west 15 to 20 knots in the afternoon. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: Southeast 3 feet at 6 seconds and east 3 feet at 9 seconds. Intracoastal waters choppy. A chance of showers in the morning, then showers with a slight chance of thunderstorms in the afternoon. THURSDAY NIGHT Northeast winds 25 to 30 knots. Seas 4 to 6 feet, occasionally to 8 feet, building to 5 to 8 feet, occasionally to 10 feet after midnight. Wave Detail: East 6 feet at 9 seconds and north 3 feet at 4 seconds, becoming north 8 feet at 6 seconds. Intracoastal waters very rough. Showers likely with a slight chance of thunderstorms in the evening, then a chance of showers after midnight. FRIDAY Northeast winds 20 to 25 knots, diminishing to 5 to 10 knots. Seas 5 to 8 feet, occasionally to 10 feet, subsiding to 4 to 6 feet, occasionally to 8 feet. Intracoastal waters rough. A chance of showers through the day, then a slight chance of showers through the night. SATURDAY Northeast winds 5 to 10 knots, becoming southeast. Seas 3 to 5 feet, occasionally to 6 feet. Intracoastal waters light chop. A chance of showers through the day. A slight chance of thunderstorms in the afternoon, then a slight chance of showers in the evening. A chance of showers with a slight chance of thunderstorms after midnight. Winds and waves higher in and near thunderstorms. $$