Hazardous marine condition(s):
Small Craft Advisory
Gale Warning
AMZ400-172130-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
230 AM EDT Sat Oct 17 2026
.SYNOPSIS...
A cold front will move southeast across the area waters this
morning, with strong high pressure building behind it. An area of
low pressure is expected to develop to the northeast of the region
over the weekend. The gradient between high pressure, and the low
will produce moderately strong flow across area waters beginning
around 6 AM today and strengthen with rapidly building seas also
expected. Gale Force winds will develop this afternoon, and continue
into early next week.
.GULF STREAM...
The approximate location of the west wall of the Gulf Stream as of
Oct 16, 2026 at 0000 UTC...
46 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.
$$
AMZ470-472-474-172130- Waters from Altamaha Sound GA to Fernandina Beach FL from 20 to 60 NM- Waters from Fernandina Beach to St. Augustine FL from 20 to 60 NM- Waters from St. Augustine to Flagler Beach FL from 20 to 60 NM- 230 AM EDT Sat Oct 17 2026 SMALL CRAFT ADVISORY IN EFFECT FROM 6 AM THIS MORNING TO 2 PM EDT THIS AFTERNOON GALE WARNING IN EFFECT FROM 2 PM EDT THIS AFTERNOON THROUGH LATE MONDAY NIGHT REST OF TONIGHT West winds 15 to 20 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: West 3 feet at 4 seconds and east 2 feet at 9 seconds. A slight chance of showers and thunderstorms. SATURDAY Northwest winds 20 to 25 knots, becoming north 25 to 30 knots with gusts up to 40 knots in the afternoon. Seas 4 to 6 feet, occasionally to 8 feet, building to 6 to 9 feet, occasionally to 11 feet in the afternoon. Wave Detail: Northwest 6 feet at 5 seconds and southeast 2 feet at 4 seconds, becoming north 9 feet at 7 seconds and east 2 feet at 9 seconds. A slight chance of thunderstorms in the morning. A chance of showers. SATURDAY NIGHT Northeast winds 30 to 35 knots. Seas 9 to 12 feet, occasionally to 15 feet, building to 12 to 13 feet, occasionally to 17 feet after midnight. Wave Detail: North 12 feet at 8 seconds and east 10 feet at 9 seconds, becoming northeast 13 feet at 8 seconds. A slight chance of showers. SUNDAY Northeast winds 30 to 35 knots. Seas 11 to 14 feet, occasionally to 18 feet. Wave Detail: Northeast 14 feet at 9 seconds. A chance of showers. SUNDAY NIGHT AND MONDAY North winds 25 to 35 knots. Seas 12 to 15 feet, occasionally to 19 feet. Wave Detail: Northeast 14 feet at 11 seconds. A chance of showers. MONDAY NIGHT North winds 25 to 30 knots, diminishing to 20 to 25 knots after midnight. Seas 10 to 14 feet, occasionally to 18 feet. Wave Detail: Northeast 14 feet at 14 seconds and northeast 3 feet at 8 seconds. A slight chance of showers in the evening. TUESDAY North winds 20 to 25 knots. Seas 8 to 11 feet, occasionally to 14 feet, subsiding to 7 to 9 feet, occasionally to 11 feet after midnight. WEDNESDAY North winds 20 to 25 knots. Seas 7 to 9 feet, occasionally to 11 feet. A slight chance of showers through the day. Winds and seas higher in and near thunderstorms. $$
AMZ470-472-474-172130- Waters from Altamaha Sound GA to Fernandina Beach FL from 20 to 60 NM- Waters from Fernandina Beach to St. Augustine FL from 20 to 60 NM- Waters from St. Augustine to Flagler Beach FL from 20 to 60 NM- 230 AM EDT Sat Oct 17 2026 SMALL CRAFT ADVISORY IN EFFECT FROM 6 AM THIS MORNING TO 2 PM EDT THIS AFTERNOON GALE WARNING IN EFFECT FROM 2 PM EDT THIS AFTERNOON THROUGH LATE MONDAY NIGHT REST OF TONIGHT West winds 15 to 20 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: West 3 feet at 4 seconds and east 2 feet at 9 seconds. A slight chance of showers and thunderstorms. SATURDAY Northwest winds 20 to 25 knots, becoming north 25 to 30 knots with gusts up to 40 knots in the afternoon. Seas 4 to 6 feet, occasionally to 8 feet, building to 6 to 9 feet, occasionally to 11 feet in the afternoon. Wave Detail: Northwest 6 feet at 5 seconds and southeast 2 feet at 4 seconds, becoming north 9 feet at 7 seconds and east 2 feet at 9 seconds. A slight chance of thunderstorms in the morning. A chance of showers. SATURDAY NIGHT Northeast winds 30 to 35 knots. Seas 9 to 12 feet, occasionally to 15 feet, building to 12 to 13 feet, occasionally to 17 feet after midnight. Wave Detail: North 12 feet at 8 seconds and east 10 feet at 9 seconds, becoming northeast 13 feet at 8 seconds. A slight chance of showers. SUNDAY Northeast winds 30 to 35 knots. Seas 11 to 14 feet, occasionally to 18 feet. Wave Detail: Northeast 14 feet at 9 seconds. A chance of showers. SUNDAY NIGHT AND MONDAY North winds 25 to 35 knots. Seas 12 to 15 feet, occasionally to 19 feet. Wave Detail: Northeast 14 feet at 11 seconds. A chance of showers. MONDAY NIGHT North winds 25 to 30 knots, diminishing to 20 to 25 knots after midnight. Seas 10 to 14 feet, occasionally to 18 feet. Wave Detail: Northeast 14 feet at 14 seconds and northeast 3 feet at 8 seconds. A slight chance of showers in the evening. TUESDAY North winds 20 to 25 knots. Seas 8 to 11 feet, occasionally to 14 feet, subsiding to 7 to 9 feet, occasionally to 11 feet after midnight. WEDNESDAY North winds 20 to 25 knots. Seas 7 to 9 feet, occasionally to 11 feet. A slight chance of showers through the day. Winds and seas higher in and near thunderstorms. $$