Hazardous marine condition(s):
Gale Warning
Small Craft Advisory
AMZ400-100215-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
704 AM EDT Thu Oct 9 2025
.SYNOPSIS...
A frontal boundary crosses into the GA waters during the predawn
hours this morning and pushes towards the FL waters by late this
morning to early afternoon hours. Northeast winds will quickly
strengthen as a coastal trough develops over the near shore waters.
Showers and embedded storms will begin to increase in coverage
through Friday. Small Craft Advisory conditions are expected to
develop this morning. A Gale Warning has been posted from this
afternoon through Saturday night. Low pressure will then develop
along the frontal boundary over the Gulf Stream waters adjacent to
our region on Friday, with this feature gradually strengthening as
it moves northward towards the Carolinas this weekend. Strong north-
northeasterly winds and building, very rough surf will create
dangerous conditions throughout our local waters from Thursday night
through early Sunday. Northerly winds will gradually subside late
this weekend into early next week, with elevated seas also likely
slow to subside across our local waters.
.GULF STREAM...
The approximate location of the west wall of the Gulf Stream as of
Oct 07, 2025 at 1200 UTC...
50 nautical miles east of Flagler Beach.
59 nautical miles east of Saint Augustine Beach.
70 nautical miles east of Jacksonville Beach.
86 nautical miles east of St Simons Island.
This data courtesy of the Naval Oceanographic Office.
$$
AMZ452-454-100215- Coastal waters from Fernandina Beach to St. Augustine FL out 20 NM- Coastal waters from St. Augustine to Flagler Beach FL out 20 NM- 704 AM EDT Thu Oct 9 2025 SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON GALE WARNING IN EFFECT FROM 2 PM EDT THIS AFTERNOON THROUGH LATE SATURDAY NIGHT TODAY Northeast winds 15 to 20 knots, increasing to 20 to 25 knots with gusts up to 40 knots this afternoon. Seas 5 to 7 feet, occasionally to 9 feet. Wave Detail: Northeast 7 feet at 7 seconds. Intracoastal waters rough. A chance of showers with a slight chance of thunderstorms this morning, then showers with a chance of thunderstorms this afternoon. TONIGHT Northeast winds 25 to 30 knots, diminishing to 20 to 25 knots after midnight. Seas 6 to 9 feet, occasionally to 11 feet. Wave Detail: East 8 feet at 8 seconds. Intracoastal waters very rough. Showers with a chance of thunderstorms. FRIDAY Northeast winds 20 to 25 knots with gusts up to 35 knots. Seas 7 to 9 feet, occasionally to 11 feet. Wave Detail: Northeast 9 feet at 8 seconds. Intracoastal waters rough. Showers with a chance of thunderstorms. FRIDAY NIGHT Northeast winds 25 to 30 knots with gusts up to 40 knots. Seas 8 to 10 feet, occasionally to 13 feet. Wave Detail: Northeast 9 feet at 8 seconds and northeast 3 feet at 5 seconds. Intracoastal waters very rough. Showers likely with a chance of thunderstorms in the evening, then a chance of showers with a slight chance of thunderstorms after midnight. SATURDAY North winds 25 to 30 knots, increasing to 30 to 35 knots in the afternoon. Seas 9 to 11 feet, occasionally to 14 feet. Wave Detail: Northeast 11 feet at 10 seconds and north 6 feet at 7 seconds. Intracoastal waters extremely rough. A chance of showers and thunderstorms. SATURDAY NIGHT North winds 25 to 35 knots with gusts up to 45 knots. Seas 10 to 12 feet, occasionally to 15 feet, subsiding to 8 to 11 feet, occasionally to 14 feet after midnight. Wave Detail: Northeast 11 feet at 8 seconds and north 5 feet at 7 seconds, becoming northeast 10 feet at 9 seconds and north 7 feet at 7 seconds. Intracoastal waters extremely rough. A slight chance of showers and thunderstorms in the evening. SUNDAY North winds 20 to 25 knots, diminishing to 15 to 20 knots. Seas 7 to 10 feet, occasionally to 13 feet, subsiding to 5 to 8 feet, occasionally to 10 feet. Intracoastal waters rough. MONDAY North winds 15 to 20 knots, becoming west. Seas 4 to 6 feet, occasionally to 8 feet. Intracoastal waters choppy. Winds and waves higher in and near thunderstorms. $$
AMZ452-454-100215- Coastal waters from Fernandina Beach to St. Augustine FL out 20 NM- Coastal waters from St. Augustine to Flagler Beach FL out 20 NM- 704 AM EDT Thu Oct 9 2025 SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON GALE WARNING IN EFFECT FROM 2 PM EDT THIS AFTERNOON THROUGH LATE SATURDAY NIGHT TODAY Northeast winds 15 to 20 knots, increasing to 20 to 25 knots with gusts up to 40 knots this afternoon. Seas 5 to 7 feet, occasionally to 9 feet. Wave Detail: Northeast 7 feet at 7 seconds. Intracoastal waters rough. A chance of showers with a slight chance of thunderstorms this morning, then showers with a chance of thunderstorms this afternoon. TONIGHT Northeast winds 25 to 30 knots, diminishing to 20 to 25 knots after midnight. Seas 6 to 9 feet, occasionally to 11 feet. Wave Detail: East 8 feet at 8 seconds. Intracoastal waters very rough. Showers with a chance of thunderstorms. FRIDAY Northeast winds 20 to 25 knots with gusts up to 35 knots. Seas 7 to 9 feet, occasionally to 11 feet. Wave Detail: Northeast 9 feet at 8 seconds. Intracoastal waters rough. Showers with a chance of thunderstorms. FRIDAY NIGHT Northeast winds 25 to 30 knots with gusts up to 40 knots. Seas 8 to 10 feet, occasionally to 13 feet. Wave Detail: Northeast 9 feet at 8 seconds and northeast 3 feet at 5 seconds. Intracoastal waters very rough. Showers likely with a chance of thunderstorms in the evening, then a chance of showers with a slight chance of thunderstorms after midnight. SATURDAY North winds 25 to 30 knots, increasing to 30 to 35 knots in the afternoon. Seas 9 to 11 feet, occasionally to 14 feet. Wave Detail: Northeast 11 feet at 10 seconds and north 6 feet at 7 seconds. Intracoastal waters extremely rough. A chance of showers and thunderstorms. SATURDAY NIGHT North winds 25 to 35 knots with gusts up to 45 knots. Seas 10 to 12 feet, occasionally to 15 feet, subsiding to 8 to 11 feet, occasionally to 14 feet after midnight. Wave Detail: Northeast 11 feet at 8 seconds and north 5 feet at 7 seconds, becoming northeast 10 feet at 9 seconds and north 7 feet at 7 seconds. Intracoastal waters extremely rough. A slight chance of showers and thunderstorms in the evening. SUNDAY North winds 20 to 25 knots, diminishing to 15 to 20 knots. Seas 7 to 10 feet, occasionally to 13 feet, subsiding to 5 to 8 feet, occasionally to 10 feet. Intracoastal waters rough. MONDAY North winds 15 to 20 knots, becoming west. Seas 4 to 6 feet, occasionally to 8 feet. Intracoastal waters choppy. Winds and waves higher in and near thunderstorms. $$