Hazardous marine condition(s):
Small Craft Advisory
AMZ400-231615-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
903 PM EDT Thu Oct 22 2026
.SYNOPSIS...
Through the weekend, high pressure ridge located to the north of the
area will build while a trough of low pressure develops just south
of the Bahamas. This will continue to support hazardous marine
conditions across most of the area waters through tonight. As the
pressure gradient tightens further on Friday, strengthening
northeast winds and building seas are expected and will continue
into the weekend and early next week. Northeast winds to Gale force
may develop as early as Friday night and become likely for the
weekend into early next week. A surge of moisture this weekend will
also support elevated chances for moderate to heavy showers which
lasts from Saturday through Monday.
.GULF STREAM...
The approximate location of the west wall of the Gulf Stream as of
Oct 22, 2026 at 0000 UTC...
58 nautical miles east of Flagler Beach.
66 nautical miles east of Saint Augustine Beach.
78 nautical miles east southeast of Jacksonville Beach.
81 nautical miles east southeast of St Simons Island.
This data derived from NCEP Global RTOFS model.
$$
AMZ450-452-454-231615- 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- 903 PM EDT Thu Oct 22 2026 SMALL CRAFT ADVISORY IN EFFECT FROM FRIDAY AFTERNOON THROUGH SATURDAY EVENING REST OF TONIGHT Northeast winds 15 to 20 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: Northeast 6 feet at 12 seconds. Intracoastal waters choppy. FRIDAY Northeast winds 15 to 20 knots, increasing to 20 to 25 knots in the afternoon. Seas 5 to 7 feet, occasionally to 9 feet. Wave Detail: Northeast 7 feet at 8 seconds. Intracoastal waters rough. FRIDAY NIGHT Northeast winds 25 to 30 knots. Seas 6 to 9 feet, occasionally to 11 feet. Wave Detail: Northeast 9 feet at 7 seconds. Intracoastal waters very rough. Showers likely after midnight. SATURDAY Northeast winds 25 to 30 knots with gusts up to 40 knots. Seas 8 to 10 feet, occasionally to 13 feet, building to 9 to 12 feet, occasionally to 15 feet in the afternoon. Wave Detail: Northeast 9 feet at 8 seconds, becoming northeast 11 feet at 8 seconds. Intracoastal waters very rough. Showers. A slight chance of thunderstorms in the afternoon. SATURDAY NIGHT Northeast winds around 30 knots with gusts up to 40 knots. Seas 10 to 14 feet, occasionally to 18 feet. Wave Detail: Northeast 14 feet at 10 seconds. Intracoastal waters very rough. Showers with a slight chance of thunderstorms in the evening, then a chance of showers after midnight. SUNDAY Northeast winds 25 to 30 knots. Gusts up to 45 knots in the afternoon. Seas 10 to 14 feet, occasionally to 18 feet. Wave Detail: Northeast 14 feet at 10 seconds. Intracoastal waters very rough. A chance of showers in the morning, then showers likely in the afternoon. SUNDAY NIGHT Northeast winds around 30 knots with gusts up to 45 knots. Seas 11 to 13 feet, occasionally to 17 feet. Intracoastal waters very rough. A chance of showers, mainly in the evening. MONDAY Northeast winds 25 to 30 knots. Seas 9 to 13 feet, occasionally to 17 feet. Intracoastal waters very rough. A chance of showers through the day, then a slight chance of showers in the evening. TUESDAY Northeast winds 25 to 30 knots, diminishing to 20 to 25 knots. Seas 9 to 12 feet, occasionally to 15 feet, subsiding to 7 to 10 feet, occasionally to 13 feet. Intracoastal waters very rough. A slight chance of showers. Winds and waves higher in and near thunderstorms. $$
AMZ450-452-454-231615- 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- 903 PM EDT Thu Oct 22 2026 SMALL CRAFT ADVISORY IN EFFECT FROM FRIDAY AFTERNOON THROUGH SATURDAY EVENING REST OF TONIGHT Northeast winds 15 to 20 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: Northeast 6 feet at 12 seconds. Intracoastal waters choppy. FRIDAY Northeast winds 15 to 20 knots, increasing to 20 to 25 knots in the afternoon. Seas 5 to 7 feet, occasionally to 9 feet. Wave Detail: Northeast 7 feet at 8 seconds. Intracoastal waters rough. FRIDAY NIGHT Northeast winds 25 to 30 knots. Seas 6 to 9 feet, occasionally to 11 feet. Wave Detail: Northeast 9 feet at 7 seconds. Intracoastal waters very rough. Showers likely after midnight. SATURDAY Northeast winds 25 to 30 knots with gusts up to 40 knots. Seas 8 to 10 feet, occasionally to 13 feet, building to 9 to 12 feet, occasionally to 15 feet in the afternoon. Wave Detail: Northeast 9 feet at 8 seconds, becoming northeast 11 feet at 8 seconds. Intracoastal waters very rough. Showers. A slight chance of thunderstorms in the afternoon. SATURDAY NIGHT Northeast winds around 30 knots with gusts up to 40 knots. Seas 10 to 14 feet, occasionally to 18 feet. Wave Detail: Northeast 14 feet at 10 seconds. Intracoastal waters very rough. Showers with a slight chance of thunderstorms in the evening, then a chance of showers after midnight. SUNDAY Northeast winds 25 to 30 knots. Gusts up to 45 knots in the afternoon. Seas 10 to 14 feet, occasionally to 18 feet. Wave Detail: Northeast 14 feet at 10 seconds. Intracoastal waters very rough. A chance of showers in the morning, then showers likely in the afternoon. SUNDAY NIGHT Northeast winds around 30 knots with gusts up to 45 knots. Seas 11 to 13 feet, occasionally to 17 feet. Intracoastal waters very rough. A chance of showers, mainly in the evening. MONDAY Northeast winds 25 to 30 knots. Seas 9 to 13 feet, occasionally to 17 feet. Intracoastal waters very rough. A chance of showers through the day, then a slight chance of showers in the evening. TUESDAY Northeast winds 25 to 30 knots, diminishing to 20 to 25 knots. Seas 9 to 12 feet, occasionally to 15 feet, subsiding to 7 to 10 feet, occasionally to 13 feet. Intracoastal waters very rough. A slight chance of showers. Winds and waves higher in and near thunderstorms. $$