Hazardous marine condition(s):
Small Craft Advisory
AMZ400-240745-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
1133 AM EST Fri Jan 23 2026
.SYNOPSIS...
Arctic high pressure will build northwest of the area this afternoon
and push a frontal boundary southward through the local waters
tonight. Dense sea fog development will be possible across the
Northeast Florida nearshore waters this evening. Northeast winds
briefly surge in the wake of this frontal passage on Saturday with
Small Craft Advisory conditions expected. Meanwhile, a winter storm
developing over the deep South on Saturday and Saturday night will
shift northeast, lifting a warm front northward across our local
waters on Saturday night. Winds will shift to south and then
southwest on Sunday ahead of another cold front, which could be
accompanied by a few thunderstorms on Sunday night. Arctic high
pressure will then build into the southeast states in the wake of
this cold frontal passage early next week, continuing Small Craft
Advisory conditions into early next week as breezy northwest winds
shift to north while strengthening further on Monday night.
.GULF STREAM...
The approximate location of the west wall of the Gulf Stream as of
Jan 23, 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.
68 nautical miles east southeast of St Simons Island.
This data derived from NCEP Global RTOFS model.
$$
AMZ452-240745- Coastal waters from Fernandina Beach to St. Augustine FL out 20 NM- 1133 AM EST Fri Jan 23 2026 SMALL CRAFT ADVISORY IN EFFECT FROM SATURDAY MORNING THROUGH SATURDAY EVENING REST OF TODAY North winds around 10 knots. Seas around 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at 10 seconds. Intracoastal waters light chop. TONIGHT Northeast winds around 10 knots, becoming north 15 to 20 knots after midnight. Seas 4 to 5 feet, occasionally to 6 feet. Wave Detail: East 4 feet at 10 seconds and northeast 3 feet at 4 seconds. Intracoastal waters choppy. Areas of fog. Visibility 1 NM or less. SATURDAY Northeast winds 20 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: Northeast 5 feet at 5 seconds and east 3 feet at 10 seconds. Intracoastal waters choppy. Patchy fog in the morning. A slight chance of showers in the afternoon. SATURDAY NIGHT Northeast winds 15 to 20 knots, becoming southeast 5 to 10 knots after midnight. Seas 5 to 6 feet, occasionally to 8 feet. Wave Detail: Northeast 5 feet at 7 seconds and east 5 feet at 10 seconds. Intracoastal waters choppy. A slight chance of showers in the evening. SUNDAY South winds 10 to 15 knots, increasing to 15 to 20 knots in the afternoon. Seas 5 to 7 feet, occasionally to 9 feet. Wave Detail: Northeast 6 feet at 10 seconds and northeast 3 feet at 7 seconds. Intracoastal waters choppy. SUNDAY NIGHT Southwest winds 20 to 25 knots with gusts up to 35 knots. Seas 5 to 7 feet, occasionally to 9 feet. Wave Detail: East 6 feet at 10 seconds and south 4 feet at 5 seconds. Intracoastal waters rough. A chance of showers in the evening, then showers likely after midnight. MONDAY Northwest winds 25 to 30 knots. Seas 5 to 8 feet, occasionally to 10 feet. Intracoastal waters very rough. A slight chance of showers in the morning. TUESDAY North winds 20 to 25 knots, becoming northwest 10 to 15 knots. Seas 5 to 7 feet, occasionally to 9 feet, subsiding to 3 to 5 feet, occasionally to 6 feet. Intracoastal waters rough. $$
AMZ452-240745- Coastal waters from Fernandina Beach to St. Augustine FL out 20 NM- 1133 AM EST Fri Jan 23 2026 SMALL CRAFT ADVISORY IN EFFECT FROM SATURDAY MORNING THROUGH SATURDAY EVENING REST OF TODAY North winds around 10 knots. Seas around 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at 10 seconds. Intracoastal waters light chop. TONIGHT Northeast winds around 10 knots, becoming north 15 to 20 knots after midnight. Seas 4 to 5 feet, occasionally to 6 feet. Wave Detail: East 4 feet at 10 seconds and northeast 3 feet at 4 seconds. Intracoastal waters choppy. Areas of fog. Visibility 1 NM or less. SATURDAY Northeast winds 20 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: Northeast 5 feet at 5 seconds and east 3 feet at 10 seconds. Intracoastal waters choppy. Patchy fog in the morning. A slight chance of showers in the afternoon. SATURDAY NIGHT Northeast winds 15 to 20 knots, becoming southeast 5 to 10 knots after midnight. Seas 5 to 6 feet, occasionally to 8 feet. Wave Detail: Northeast 5 feet at 7 seconds and east 5 feet at 10 seconds. Intracoastal waters choppy. A slight chance of showers in the evening. SUNDAY South winds 10 to 15 knots, increasing to 15 to 20 knots in the afternoon. Seas 5 to 7 feet, occasionally to 9 feet. Wave Detail: Northeast 6 feet at 10 seconds and northeast 3 feet at 7 seconds. Intracoastal waters choppy. SUNDAY NIGHT Southwest winds 20 to 25 knots with gusts up to 35 knots. Seas 5 to 7 feet, occasionally to 9 feet. Wave Detail: East 6 feet at 10 seconds and south 4 feet at 5 seconds. Intracoastal waters rough. A chance of showers in the evening, then showers likely after midnight. MONDAY Northwest winds 25 to 30 knots. Seas 5 to 8 feet, occasionally to 10 feet. Intracoastal waters very rough. A slight chance of showers in the morning. TUESDAY North winds 20 to 25 knots, becoming northwest 10 to 15 knots. Seas 5 to 7 feet, occasionally to 9 feet, subsiding to 3 to 5 feet, occasionally to 6 feet. Intracoastal waters rough. $$