AMZ400-180800-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
152 PM EDT Fri Apr 17 2026
.SYNOPSIS...
Surface high pressure ridging will be south of the area into Saturday
night. Atlantic sea breeze expected this afternoon and Saturday
afternoon shifting winds to the southeast and south up to 15 knots.
A dry cold frontal passage is expected late Sunday afternoon into
Sunday Night, then a surge of northeast winds follows the frontal
passage through Monday night and Small Craft Advisory with the
potential for Gale force gusts are expected. High pressure will
develop over the area Tuesday, moving east of the area by
Wednesday.
.GULF STREAM...
The approximate location of the west wall of the Gulf Stream as of
Apr 17, 2026 at 0000 UTC...
50 nautical miles east of Flagler Beach.
62 nautical miles east of Saint Augustine Beach.
74 nautical miles east southeast of Jacksonville Beach.
71 nautical miles east southeast of St Simons Island.
This data derived from NCEP Global RTOFS model.
$$
AMZ450-452-454-180800- Coastal waters from Altamaha Sound to Fernandina Beach FL out 20 NM- Coastal waters from Fernandina Beach to St. Augustine FL out 20 NM- Coastal waters from St. Augustine to Flagler Beach FL out 20 NM- 152 PM EDT Fri Apr 17 2026 REST OF TODAY Southeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: East 3 feet at 9 seconds. Intracoastal waters light chop. TONIGHT South winds around 10 knots. Seas 2 to 3 feet. Wave Detail: East 3 feet at 8 seconds. Intracoastal waters light chop. SATURDAY South winds 5 to 10 knots, becoming southeast 10 to 15 knots in the afternoon. Seas 2 to 3 feet. Wave Detail: East 3 feet at 8 seconds and southeast 2 feet at 3 seconds. Intracoastal waters a moderate chop. SATURDAY NIGHT South winds 10 to 15 knots, becoming southwest 5 to 10 knots after midnight. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 4 seconds and east 2 feet at 8 seconds. Intracoastal waters a moderate chop. Patchy fog after midnight. SUNDAY Southwest winds 5 to 10 knots, becoming southeast 10 to 15 knots in the afternoon. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at 5 seconds and east 2 feet at 8 seconds. Intracoastal waters a moderate chop. SUNDAY NIGHT North winds 20 to 25 knots, becoming northeast 25 to 30 knots after midnight. Seas 2 to 4 feet, occasionally to 5 feet, building to 5 to 7 feet, occasionally to 9 feet after midnight. Wave Detail: Northeast 4 feet at 8 seconds, becoming northeast 7 feet at 6 seconds. Intracoastal waters very rough. A slight chance of showers in the evening. MONDAY Northeast winds 25 to 30 knots, diminishing to 20 to 25 knots. Seas 6 to 9 feet, occasionally to 11 feet, subsiding to 4 to 6 feet, occasionally to 8 feet after midnight. Intracoastal waters very rough. TUESDAY Northeast winds 15 to 20 knots, becoming east 10 to 15 knots. Seas 4 to 6 feet, occasionally to 8 feet, subsiding to 3 to 4 feet, occasionally to 5 feet after midnight. Intracoastal waters choppy. $$
AMZ450-452-454-180800- 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- 152 PM EDT Fri Apr 17 2026 REST OF TODAY Southeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: East 3 feet at 9 seconds. Intracoastal waters light chop. TONIGHT South winds around 10 knots. Seas 2 to 3 feet. Wave Detail: East 3 feet at 8 seconds. Intracoastal waters light chop. SATURDAY South winds 5 to 10 knots, becoming southeast 10 to 15 knots in the afternoon. Seas 2 to 3 feet. Wave Detail: East 3 feet at 8 seconds and southeast 2 feet at 3 seconds. Intracoastal waters a moderate chop. SATURDAY NIGHT South winds 10 to 15 knots, becoming southwest 5 to 10 knots after midnight. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 4 seconds and east 2 feet at 8 seconds. Intracoastal waters a moderate chop. Patchy fog after midnight. SUNDAY Southwest winds 5 to 10 knots, becoming southeast 10 to 15 knots in the afternoon. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at 5 seconds and east 2 feet at 8 seconds. Intracoastal waters a moderate chop. SUNDAY NIGHT North winds 20 to 25 knots, becoming northeast 25 to 30 knots after midnight. Seas 2 to 4 feet, occasionally to 5 feet, building to 5 to 7 feet, occasionally to 9 feet after midnight. Wave Detail: Northeast 4 feet at 8 seconds, becoming northeast 7 feet at 6 seconds. Intracoastal waters very rough. A slight chance of showers in the evening. MONDAY Northeast winds 25 to 30 knots, diminishing to 20 to 25 knots. Seas 6 to 9 feet, occasionally to 11 feet, subsiding to 4 to 6 feet, occasionally to 8 feet after midnight. Intracoastal waters very rough. TUESDAY Northeast winds 15 to 20 knots, becoming east 10 to 15 knots. Seas 4 to 6 feet, occasionally to 8 feet, subsiding to 3 to 4 feet, occasionally to 5 feet after midnight. Intracoastal waters choppy. $$