Hazardous marine condition(s):
Special Marine Warning
AMZ400-120900-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
225 PM EDT Mon May 11 2026
.SYNOPSIS...
A cold front pushing through the southeastern states today will
cross the waters adjacent to southeast Georgia late Monday evening
and then the northeast Florida waters early on Tuesday morning. A
few strong thunderstorms could impact the near shore waters late
this afternoon and evening, with frequent lightning strikes and
briefly gusty winds possible. Showers and a few embedded
thunderstorms will then overspread our local waters on Tuesday
morning, with periods of heavier downpours possible across the
northeast Florida waters through Tuesday night. Meanwhile, high
pressure building over the Ohio Valley and Mid-Atlantic states in
the wake of this frontal passage will send a surge of northeasterly
winds down the southeastern seaboard overnight tonight through
Tuesday morning, with Small Craft Advisory conditions developing
initially across the Georgia waters after midnight and then
expanding to the waters from St. Augustine northward early on
Tuesday morning. Showers and embedded thunderstorms, along with
Small Craft Advisory conditions, will continue through Tuesday
evening across our local waters. Showers may linger into Wednesday
morning before another high pressure center builds southward from
the Great Lakes states late this week, signaling a drying trend that
will continue across our local waters through the upcoming weekend.
.GULF STREAM...
The approximate location of the west wall of the Gulf Stream as of
May 11, 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.
76 nautical miles east southeast of St Simons Island.
This data derived from NCEP Global RTOFS model.
$$
AMZ454-120900- Coastal waters from St. Augustine to Flagler Beach FL out 20 NM- 225 PM EDT Mon May 11 2026 REST OF TODAY Southeast winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southeast 2 feet at 5 seconds. Intracoastal waters light chop. A chance of showers with a slight chance of thunderstorms. TONIGHT South winds around 10 knots, becoming west after midnight. Seas around 2 feet. Wave Detail: Southeast 2 feet at 5 seconds. Intracoastal waters light chop. A chance of showers with a slight chance of thunderstorms. TUESDAY Northeast winds 10 to 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: Northeast 3 feet at 5 seconds. Intracoastal waters a moderate chop. Showers with a chance of thunderstorms. TUESDAY NIGHT East winds 10 to 15 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: East 4 feet at 6 seconds. Intracoastal waters a moderate chop. A chance of showers. A chance of thunderstorms, mainly in the evening. WEDNESDAY East winds 5 to 10 knots. Seas 4 to 5 feet, occasionally to 6 feet. Wave Detail: East 5 feet at 8 seconds and east 2 feet at 11 seconds. Intracoastal waters light chop. Showers likely with a slight chance of thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. WEDNESDAY NIGHT Southeast winds 5 to 10 knots, becoming west after midnight. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: Northeast 4 feet at 8 seconds and east 2 feet at 11 seconds. Intracoastal waters light chop. A slight chance of showers and thunderstorms in the evening. THURSDAY THROUGH FRIDAY Southeast winds 10 to 15 knots. Seas 2 to 3 feet. Intracoastal waters a moderate chop. Winds and waves higher in and near thunderstorms. $$
AMZ454-120900- Coastal waters from St. Augustine to Flagler Beach FL out 20 NM- 225 PM EDT Mon May 11 2026 REST OF TODAY Southeast winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southeast 2 feet at 5 seconds. Intracoastal waters light chop. A chance of showers with a slight chance of thunderstorms. TONIGHT South winds around 10 knots, becoming west after midnight. Seas around 2 feet. Wave Detail: Southeast 2 feet at 5 seconds. Intracoastal waters light chop. A chance of showers with a slight chance of thunderstorms. TUESDAY Northeast winds 10 to 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: Northeast 3 feet at 5 seconds. Intracoastal waters a moderate chop. Showers with a chance of thunderstorms. TUESDAY NIGHT East winds 10 to 15 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: East 4 feet at 6 seconds. Intracoastal waters a moderate chop. A chance of showers. A chance of thunderstorms, mainly in the evening. WEDNESDAY East winds 5 to 10 knots. Seas 4 to 5 feet, occasionally to 6 feet. Wave Detail: East 5 feet at 8 seconds and east 2 feet at 11 seconds. Intracoastal waters light chop. Showers likely with a slight chance of thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. WEDNESDAY NIGHT Southeast winds 5 to 10 knots, becoming west after midnight. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: Northeast 4 feet at 8 seconds and east 2 feet at 11 seconds. Intracoastal waters light chop. A slight chance of showers and thunderstorms in the evening. THURSDAY THROUGH FRIDAY Southeast winds 10 to 15 knots. Seas 2 to 3 feet. Intracoastal waters a moderate chop. Winds and waves higher in and near thunderstorms. $$