AMZ400-172100-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
224 AM EDT Fri Apr 17 2026
.SYNOPSIS...
High pressure ridging will be the prevailing feature through the
weekend, with the flow gradually shifting more southeasterly to
southerly over the next several days. A mostly dry frontal passage
is expected Sunday Night, then a surge of northeasterly winds
develops in the wake of the front Monday into Tuesday bringing Small
Craft Advisory conditions with the potential for Gale force gusts.
.GULF STREAM...
The approximate location of the west wall of the Gulf Stream as of
Apr 16, 2026 at 0000 UTC...
54 nautical miles east of Flagler Beach.
58 nautical miles east of Saint Augustine Beach.
70 nautical miles east southeast of Jacksonville Beach.
71 nautical miles east southeast of St Simons Island.
This data derived from NCEP Global RTOFS model.
$$
AMZ450-452-454-172100- Coastal waters from Altamaha Sound to Fernandina Beach FL out 20 NM- Coastal waters from Fernandina Beach to St. Augustine FL out 20 NM- Coastal waters from St. Augustine to Flagler Beach FL out 20 NM- 224 AM EDT Fri Apr 17 2026 REST OF TONIGHT Southwest winds 10 to 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 3 feet at 9 seconds and south 2 feet at 4 seconds. Intracoastal waters a moderate chop. FRIDAY Southwest winds 5 to 10 knots, becoming southeast in the afternoon. Seas 2 to 3 feet. Wave Detail: East 3 feet at 9 seconds. Intracoastal waters light chop. FRIDAY NIGHT South winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: East 3 feet at 8 seconds. Intracoastal waters light chop. SATURDAY South winds 5 to 10 knots, becoming southeast 10 to 15 knots in the afternoon. Seas 2 to 3 feet. Wave Detail: East 3 feet at 8 seconds and southeast 2 feet at 3 seconds. Intracoastal waters a moderate chop. SATURDAY NIGHT AND SUNDAY Southwest winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 4 seconds and east 2 feet at 8 seconds. Intracoastal waters a moderate chop. SUNDAY NIGHT North winds 25 to 35 knots. Seas 3 to 5 feet, occasionally to 6 feet, building to 5 to 8 feet, occasionally to 10 feet after midnight. Wave Detail: Northeast 5 feet at 8 seconds and north 2 feet at 4 seconds, becoming northeast 8 feet at 6 seconds. Intracoastal waters extremely rough. A slight chance of showers in the evening. MONDAY Northeast winds 25 to 30 knots, diminishing to 20 to 25 knots. Seas 7 to 10 feet, occasionally to 13 feet, subsiding to 5 to 7 feet, occasionally to 9 feet after midnight. Intracoastal waters very rough. TUESDAY Northeast winds 15 to 20 knots, becoming east 10 to 15 knots. Seas 5 to 7 feet, occasionally to 9 feet, subsiding to 3 to 5 feet, occasionally to 6 feet after midnight. Intracoastal waters choppy. $$
AMZ450-452-454-172100- 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- 224 AM EDT Fri Apr 17 2026 REST OF TONIGHT Southwest winds 10 to 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 3 feet at 9 seconds and south 2 feet at 4 seconds. Intracoastal waters a moderate chop. FRIDAY Southwest winds 5 to 10 knots, becoming southeast in the afternoon. Seas 2 to 3 feet. Wave Detail: East 3 feet at 9 seconds. Intracoastal waters light chop. FRIDAY NIGHT South winds 5 to 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 AND SUNDAY Southwest winds 10 to 15 knots. 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. SUNDAY NIGHT North winds 25 to 35 knots. Seas 3 to 5 feet, occasionally to 6 feet, building to 5 to 8 feet, occasionally to 10 feet after midnight. Wave Detail: Northeast 5 feet at 8 seconds and north 2 feet at 4 seconds, becoming northeast 8 feet at 6 seconds. Intracoastal waters extremely rough. A slight chance of showers in the evening. MONDAY Northeast winds 25 to 30 knots, diminishing to 20 to 25 knots. Seas 7 to 10 feet, occasionally to 13 feet, subsiding to 5 to 7 feet, occasionally to 9 feet after midnight. Intracoastal waters very rough. TUESDAY Northeast winds 15 to 20 knots, becoming east 10 to 15 knots. Seas 5 to 7 feet, occasionally to 9 feet, subsiding to 3 to 5 feet, occasionally to 6 feet after midnight. Intracoastal waters choppy. $$