Hazardous marine condition(s):
Small Craft Advisory
AMZ400-190330-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
729 AM EST Sun Jan 18 2026
.SYNOPSIS...
An Arctic cold front will cross our local waters this morning,
accompanied by light to occasionally moderate showers.
Northwesterly winds will strengthen shortly after sunrise as low
pressure develops off the southeastern seaboard, with Small Craft
Advisory conditions persisting into the evening or overnight hours
tonight as this low pressure center strengthens while accelerating
northeastward off the Mid-Atlantic and New England coasts.
Occasional gusts to Gale Force will be possible this afternoon
through early this evening. Arctic high pressure building along the
northern Gulf coast in the wake of this cold frontal passage will
remain centered to the west and northwest of our region through
Tuesday, keeping breezy northwest to northerly winds and elevated
seas in place. High pressure will then shift eastward towards the
Carolina coast on Tuesday night, allowing winds to shift to
northeasterly across our local waters. Coastal troughing will
develop on Wednesday over our near shore waters, with this feature
then lifting northward in advance of a weak frontal boundary that
will be entering the southeastern states on Thursday. A few showers
will be possible along and ahead of this approaching front from
Wednesday night through early Friday morning.
.GULF STREAM...
The approximate location of the west wall of the Gulf Stream as of
Jan 17, 2026 at 0000 UTC...
50 nautical miles east of Flagler Beach.
53 nautical miles east of Saint Augustine Beach.
64 nautical miles east southeast of Jacksonville Beach.
66 nautical miles east southeast of St Simons Island.
This data derived from NCEP Global RTOFS model.
$$
AMZ452-454-190330- Coastal waters from Fernandina Beach to St. Augustine FL out 20 NM- Coastal waters from St. Augustine to Flagler Beach FL out 20 NM- 729 AM EST Sun Jan 18 2026 SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING TODAY Northwest winds 20 to 25 knots, increasing to 25 to 30 knots this afternoon. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: North 4 feet at 5 seconds. Intracoastal waters very rough. Showers. TONIGHT Northwest winds 15 to 20 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: North 4 feet at 5 seconds. Intracoastal waters choppy. MONDAY Northwest winds 15 to 20 knots, diminishing to 10 to 15 knots in the afternoon. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: North 4 feet at 5 seconds and east 2 feet at 8 seconds. Intracoastal waters choppy. MONDAY NIGHT Northwest winds 10 to 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: North 3 feet at 5 seconds and east 2 feet at 8 seconds. Intracoastal waters a moderate chop. TUESDAY AND TUESDAY NIGHT Northeast winds 15 to 20 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: North 4 feet at 5 seconds and east 2 feet at 9 seconds. Intracoastal waters choppy. WEDNESDAY Northeast winds 10 to 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: Northeast 3 feet at 5 seconds and east 3 feet at 9 seconds. Intracoastal waters a moderate chop. A slight chance of showers after midnight. THURSDAY North winds around 15 knots. Seas 4 to 5 feet, occasionally to 6 feet. Intracoastal waters a moderate chop. A chance of showers . $$
AMZ452-454-190330- Coastal waters from Fernandina Beach to St. Augustine FL out 20 NM- Coastal waters from St. Augustine to Flagler Beach FL out 20 NM- 729 AM EST Sun Jan 18 2026 SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING TODAY Northwest winds 20 to 25 knots, increasing to 25 to 30 knots this afternoon. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: North 4 feet at 5 seconds. Intracoastal waters very rough. Showers. TONIGHT Northwest winds 15 to 20 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: North 4 feet at 5 seconds. Intracoastal waters choppy. MONDAY Northwest winds 15 to 20 knots, diminishing to 10 to 15 knots in the afternoon. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: North 4 feet at 5 seconds and east 2 feet at 8 seconds. Intracoastal waters choppy. MONDAY NIGHT Northwest winds 10 to 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: North 3 feet at 5 seconds and east 2 feet at 8 seconds. Intracoastal waters a moderate chop. TUESDAY AND TUESDAY NIGHT Northeast winds 15 to 20 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: North 4 feet at 5 seconds and east 2 feet at 9 seconds. Intracoastal waters choppy. WEDNESDAY Northeast winds 10 to 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: Northeast 3 feet at 5 seconds and east 3 feet at 9 seconds. Intracoastal waters a moderate chop. A slight chance of showers after midnight. THURSDAY North winds around 15 knots. Seas 4 to 5 feet, occasionally to 6 feet. Intracoastal waters a moderate chop. A chance of showers . $$