Hazardous marine condition(s):
Small Craft Advisory
AMZ400-131445-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
738 PM EDT Tue May 12 2026
.SYNOPSIS...
A frontal boundary moving slowly southward across the northeast
Florida waters will become stationary across central Florida tonight
as a weak wave of low pressure currently over the eastern Gulf
pushes eastward. Meanwhile, high pressure situated along the Mid-
Atlantic coast will continue to wedge down the southeastern
seaboard, with Small Craft Advisory conditions overspreading the
waters south of St. Augustine this afternoon. Widespread showers and
embedded thunderstorms will continue across our local waters through
Wednesday morning. A few strong to severe storms will be possible
across the northeast Florida waters through tonight, with stronger
storms being capable of producing strong wind gusts, frequent
lightning strikes, hail, and possibly waterspouts.
The wave of low pressure will push offshore of the east central
Florida coast on Wednesday morning, with winds shifting to northerly
while gradually decreasing as wrap-around showers and possibly a few
thunderstorms continue into Wednesday afternoon. Another high
pressure center building over the Great Lakes region will drive a
dry frontal boundary southward across our local waters on Thursday
morning, with this feature then weakening as it shifts over the
southeastern states by Friday. Northwesterly winds in the wake of
this dry frontal passage on Thursday morning will shift to
northeasterly by Thursday afternoon, with diminishing winds and seas
expected on Thursday night and Friday.
.GULF STREAM...
The approximate location of the west wall of the Gulf Stream as of
May 12, 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.
$$
AMZ454-131445- Coastal waters from St. Augustine to Flagler Beach FL out 20 NM- 738 PM EDT Tue May 12 2026 SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY MORNING TONIGHT East winds 20 to 25 knots, diminishing to 15 to 20 knots after midnight. Seas 5 to 7 feet, occasionally to 9 feet. Wave Detail: East 7 feet at 7 seconds. Intracoastal waters rough. A chance of thunderstorms. Showers. WEDNESDAY Northeast winds 10 to 15 knots. Seas 5 to 6 feet, occasionally to 8 feet. Wave Detail: Northeast 6 feet at 9 seconds. Intracoastal waters a moderate chop. A chance of showers with a slight chance of thunderstorms. WEDNESDAY NIGHT North winds 10 to 15 knots. Seas 4 to 5 feet, occasionally to 6 feet. Wave Detail: Northeast 5 feet at 9 seconds. Intracoastal waters a moderate chop. THURSDAY Northwest winds 5 to 10 knots, becoming northeast in the afternoon. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at 8 seconds. Intracoastal waters light chop. THURSDAY NIGHT South winds around 5 knots, becoming north after midnight. Seas 2 to 3 feet. Wave Detail: East 3 feet at 8 seconds. Intracoastal waters light chop. FRIDAY AND FRIDAY NIGHT Southeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: North 3 feet at 7 seconds. Intracoastal waters light chop. SATURDAY THROUGH SUNDAY Southeast winds 10 to 15 knots. Seas 2 to 3 feet. Intracoastal waters a moderate chop. Winds and waves higher in and near thunderstorms. $$
AMZ454-131445- Coastal waters from St. Augustine to Flagler Beach FL out 20 NM- 738 PM EDT Tue May 12 2026 SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY MORNING TONIGHT East winds 20 to 25 knots, diminishing to 15 to 20 knots after midnight. Seas 5 to 7 feet, occasionally to 9 feet. Wave Detail: East 7 feet at 7 seconds. Intracoastal waters rough. A chance of thunderstorms. Showers. WEDNESDAY Northeast winds 10 to 15 knots. Seas 5 to 6 feet, occasionally to 8 feet. Wave Detail: Northeast 6 feet at 9 seconds. Intracoastal waters a moderate chop. A chance of showers with a slight chance of thunderstorms. WEDNESDAY NIGHT North winds 10 to 15 knots. Seas 4 to 5 feet, occasionally to 6 feet. Wave Detail: Northeast 5 feet at 9 seconds. Intracoastal waters a moderate chop. THURSDAY Northwest winds 5 to 10 knots, becoming northeast in the afternoon. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at 8 seconds. Intracoastal waters light chop. THURSDAY NIGHT South winds around 5 knots, becoming north after midnight. Seas 2 to 3 feet. Wave Detail: East 3 feet at 8 seconds. Intracoastal waters light chop. FRIDAY AND FRIDAY NIGHT Southeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: North 3 feet at 7 seconds. Intracoastal waters light chop. SATURDAY THROUGH SUNDAY Southeast winds 10 to 15 knots. Seas 2 to 3 feet. Intracoastal waters a moderate chop. Winds and waves higher in and near thunderstorms. $$