AMZ400-112230-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
324 AM EDT Wed Mar 11 2026
.SYNOPSIS...
Surface high pressure will sink south of the waters today with
southerly winds becoming southeasterly nearshore due to Atlantic
seabreeze circulation with winds elevating to exercise caution
levels late this afternoon. Patchy sea fog will develop this
morning and persist through the midday hours before lifting by
afternoon. A cold front will enter the southeastern states
tonight with elevated southerly winds spreading into the offshore
waters overnight.
The front will move towards the waters on Thursday morning and
move through Thursday afternoon with showers and a few stronger
thunderstorms. Strong northwesterly winds in the wake of this
frontal passage will create Small Craft Advisory conditions
throughout our local waters by late 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.
.GULF STREAM...
The approximate location of the west wall of the Gulf Stream as of
Mar 10, 2026 at 0000 UTC...
46 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.
$$
AMZ452-454-112230- Coastal waters from Fernandina Beach to St. Augustine FL out 20 NM- Coastal waters from St. Augustine to Flagler Beach FL out 20 NM- 324 AM EDT Wed Mar 11 2026 SMALL CRAFT EXERCISE CAUTION IN EFFECT FROM THIS AFTERNOON THROUGH THURSDAY MORNING TODAY South winds 5 to 10 knots, becoming southeast 15 to 20 knots this 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. TONIGHT South winds 15 to 20 knots, becoming southwest 10 to 15 knots after midnight. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: Southeast 4 feet at 5 seconds and east 2 feet at 9 seconds. Intracoastal waters choppy. THURSDAY Southwest winds around 10 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 5 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 North winds 25 to 30 knots, becoming northeast 20 to 25 knots after midnight. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: Northeast 6 feet at 8 seconds and north 4 feet at 5 seconds. Intracoastal waters very rough. A chance of showers, mainly in the evening. FRIDAY Northeast winds 15 to 20 knots, diminishing to 10 to 15 knots in the afternoon. Seas 5 to 6 feet, occasionally to 8 feet. Wave Detail: Northeast 6 feet at 7 seconds. Intracoastal waters choppy. A slight chance of showers in the morning, then a chance of showers in the afternoon. FRIDAY NIGHT Northeast winds 5 to 10 knots. Seas 4 to 5 feet, occasionally to 6 feet. Wave Detail: Northeast 5 feet at 8 seconds. Intracoastal waters light chop. A slight chance of showers in the evening. SATURDAY Northeast winds 10 to 15 knots, becoming southeast 5 to 10 knots. Seas 3 to 4 feet, occasionally to 5 feet. Intracoastal waters a moderate chop. A chance of showers. A slight chance of thunderstorms in the afternoon. A chance of thunderstorms through the night. SUNDAY Southeast winds 10 to 15 knots, becoming south 15 to 20 knots. Seas 3 to 4 feet, occasionally to 5 feet. Intracoastal waters choppy. A chance of thunderstorms. Showers likely through the day, then a chance of showers through the night. Winds and waves higher in and near thunderstorms. $$
AMZ452-454-112230- Coastal waters from Fernandina Beach to St. Augustine FL out 20 NM- Coastal waters from St. Augustine to Flagler Beach FL out 20 NM- 324 AM EDT Wed Mar 11 2026 SMALL CRAFT EXERCISE CAUTION IN EFFECT FROM THIS AFTERNOON THROUGH THURSDAY MORNING TODAY South winds 5 to 10 knots, becoming southeast 15 to 20 knots this 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. TONIGHT South winds 15 to 20 knots, becoming southwest 10 to 15 knots after midnight. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: Southeast 4 feet at 5 seconds and east 2 feet at 9 seconds. Intracoastal waters choppy. THURSDAY Southwest winds around 10 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 5 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 North winds 25 to 30 knots, becoming northeast 20 to 25 knots after midnight. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: Northeast 6 feet at 8 seconds and north 4 feet at 5 seconds. Intracoastal waters very rough. A chance of showers, mainly in the evening. FRIDAY Northeast winds 15 to 20 knots, diminishing to 10 to 15 knots in the afternoon. Seas 5 to 6 feet, occasionally to 8 feet. Wave Detail: Northeast 6 feet at 7 seconds. Intracoastal waters choppy. A slight chance of showers in the morning, then a chance of showers in the afternoon. FRIDAY NIGHT Northeast winds 5 to 10 knots. Seas 4 to 5 feet, occasionally to 6 feet. Wave Detail: Northeast 5 feet at 8 seconds. Intracoastal waters light chop. A slight chance of showers in the evening. SATURDAY Northeast winds 10 to 15 knots, becoming southeast 5 to 10 knots. Seas 3 to 4 feet, occasionally to 5 feet. Intracoastal waters a moderate chop. A chance of showers. A slight chance of thunderstorms in the afternoon. A chance of thunderstorms through the night. SUNDAY Southeast winds 10 to 15 knots, becoming south 15 to 20 knots. Seas 3 to 4 feet, occasionally to 5 feet. Intracoastal waters choppy. A chance of thunderstorms. Showers likely through the day, then a chance of showers through the night. Winds and waves higher in and near thunderstorms. $$