AMZ400-141200-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
446 PM EST Sat Dec 13 2025
.SYNOPSIS...
Fair maritime conditions continue through Sunday afternoon before a
strong, arctic cold front pushes through the waters Sunday, bringing
gales and moderately high seas, especially offshore, during the
overnight hours Sunday into Monday.
North-northwesterly winds nearing gale force developing through the
overnight hours Sunday into Monday with frequent gusts up to 40
knots. For this a Gale Watch has been issued across all the waters
Sunday afternoon through Monday morning. Winds should decrease to
Small Craft Advisory levels late Monday morning and continue to as
high pressure slides in from the north. Seas will lower Monday night
with the diminishing winds with generally fair maritime conditions
through Thursday as a weaker front approaches from the northwest.
.GULF STREAM...
The approximate location of the west wall of the Gulf Stream as of
Dec 06, 2025 at 1200 UTC...
71 nautical miles east of Flagler Beach.
74 nautical miles east of Saint Augustine Beach.
85 nautical miles east southeast of Jacksonville Beach.
97 nautical miles east southeast of St Simons Island.
This data courtesy of the Naval Oceanographic Office.
$$
AMZ470-472-474-141200-
Waters from Altamaha Sound GA to Fernandina Beach FL from 20 to
60 NM-
Waters from Fernandina Beach to St. Augustine FL from 20 to 60 NM-
Waters from St. Augustine to Flagler Beach FL from 20 to 60 NM-
446 PM EST Sat Dec 13 2025
GALE WATCH IN EFFECT FROM SUNDAY AFTERNOON THROUGH MONDAY
MORNING
TONIGHT
South winds 5 to 10 knots, becoming southwest after
midnight. Seas 2 to 3 feet. Wave Detail: South 2 feet at
3 seconds and east 2 feet at 8 seconds.
SUNDAY
West winds 15 to 20 knots, becoming northwest 20 to
25 knots with gusts up to 35 knots in the afternoon. Seas 2 to
4 feet, occasionally to 5 feet, building to 4 to 6 feet,
occasionally to 8 feet in the afternoon. Wave Detail: West 3 feet
at 4 seconds and southeast 2 feet at 8 seconds, becoming
northwest 6 feet at 5 seconds and southeast 2 feet at 8 seconds.
SUNDAY NIGHT
North winds 25 to 30 knots with gusts up to
45 knots. Seas 6 to 9 feet, occasionally to 11 feet, building to
8 to 11 feet, occasionally to 14 feet after midnight. Wave
Detail: North 9 feet at 7 seconds and east 8 feet at 9 seconds,
becoming north 11 feet at 8 seconds. A slight chance of showers
after midnight.
MONDAY
Northeast winds 25 to 30 knots with gusts up to
40 knots, diminishing to 15 to 20 knots in the afternoon. Seas
8 to 11 feet, occasionally to 14 feet. Wave Detail: Northeast
11 feet at 9 seconds. A chance of showers, mainly in the morning.
MONDAY NIGHT
Northeast winds 10 to 15 knots. Seas 5 to 8 feet,
occasionally to 10 feet. Wave Detail: Northeast 8 feet at
9 seconds.
TUESDAY
North winds 10 to 15 knots, becoming northeast 5 to
10 knots in the afternoon. Seas 4 to 6 feet, occasionally to
8 feet. Wave Detail: Northeast 6 feet at 10 seconds.
TUESDAY NIGHT
East winds 5 to 10 knots. Seas 3 to 5 feet,
occasionally to 6 feet.
WEDNESDAY THROUGH THURSDAY
Southwest winds 5 to 10 knots. Seas
3 to 4 feet, occasionally to 5 feet. A slight chance of showers.
$$
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