AMZ400-010900-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
246 PM EDT Tue Jun 30 2026
.SYNOPSIS...
An onshore breeze continues overnight followed by strengthening
northeasterly winds Wednesday as frontal remnants shift northward
toward the waters as an inverted trough. The tightening pressure
gradient between the trough and wedging high pressure north of it
will lead to Small Craft Exercise Caution conditions for northeast
FL and southeast GA coastal waters. The trough will bring increased
thunderstorm chances Wednesday and into Thursday as it weakens and
lifts north of the area. Winds will lighten and turn southerly
behind the trough on Friday as high pressure builds to the east.
Ridging will progressively slide southeast through the weekend
resulting in offshore flow and increased afternoon and
early evening thunderstorm chances.
.GULF STREAM...
The approximate location of the west wall of the Gulf Stream as of
Jun 30, 2026 at 0000 UTC...
54 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.
$$
AMZ452-454-010900- Coastal waters from Fernandina Beach to St. Augustine FL out 20 NM- Coastal waters from St. Augustine to Flagler Beach FL out 20 NM- 246 PM EDT Tue Jun 30 2026 REST OF TODAY Northeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: Northeast 3 feet at 4 seconds and east 2 feet at 9 seconds. Intracoastal waters a moderate chop. TONIGHT Northeast winds 10 to 15 knots. Seas around 3 feet. Wave Detail: Northeast 3 feet at 6 seconds and east 2 feet at 9 seconds. Intracoastal waters a moderate chop. A chance of showers after midnight. WEDNESDAY Northeast winds 10 to 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: Northeast 4 feet at 7 seconds and east 2 feet at 9 seconds. Intracoastal waters a moderate chop. A chance of showers with a slight chance of thunderstorms in the morning. WEDNESDAY NIGHT Northeast winds 10 to 15 knots, diminishing to 5 to 10 knots after midnight. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: Northeast 4 feet at 7 seconds and east 2 feet at 9 seconds. Intracoastal waters a moderate chop. A chance of showers. THURSDAY Northeast winds 5 to 10 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at 8 seconds. Intracoastal waters light chop. A slight chance of thunderstorms. A chance of showers, mainly in the morning. THURSDAY NIGHT East winds 5 to 10 knots, becoming south after midnight. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at 8 seconds. Intracoastal waters light chop. FRIDAY THROUGH SATURDAY South winds 10 to 15 knots. Seas 2 to 3 feet. Intracoastal waters a moderate chop. A slight chance of showers and thunderstorms. Winds and waves higher in and near thunderstorms. $$
AMZ452-454-010900- Coastal waters from Fernandina Beach to St. Augustine FL out 20 NM- Coastal waters from St. Augustine to Flagler Beach FL out 20 NM- 246 PM EDT Tue Jun 30 2026 REST OF TODAY Northeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: Northeast 3 feet at 4 seconds and east 2 feet at 9 seconds. Intracoastal waters a moderate chop. TONIGHT Northeast winds 10 to 15 knots. Seas around 3 feet. Wave Detail: Northeast 3 feet at 6 seconds and east 2 feet at 9 seconds. Intracoastal waters a moderate chop. A chance of showers after midnight. WEDNESDAY Northeast winds 10 to 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: Northeast 4 feet at 7 seconds and east 2 feet at 9 seconds. Intracoastal waters a moderate chop. A chance of showers with a slight chance of thunderstorms in the morning. WEDNESDAY NIGHT Northeast winds 10 to 15 knots, diminishing to 5 to 10 knots after midnight. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: Northeast 4 feet at 7 seconds and east 2 feet at 9 seconds. Intracoastal waters a moderate chop. A chance of showers. THURSDAY Northeast winds 5 to 10 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at 8 seconds. Intracoastal waters light chop. A slight chance of thunderstorms. A chance of showers, mainly in the morning. THURSDAY NIGHT East winds 5 to 10 knots, becoming south after midnight. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at 8 seconds. Intracoastal waters light chop. FRIDAY THROUGH SATURDAY South winds 10 to 15 knots. Seas 2 to 3 feet. Intracoastal waters a moderate chop. A slight chance of showers and thunderstorms. Winds and waves higher in and near thunderstorms. $$