AMZ400-222000-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
1229 AM EST Thu Jan 22 2026
.SYNOPSIS...
High pressure positioned over coastal Georgia will weaken today as a
a frontal boundary slowly pushes towards the southeastern states.
Meanwhile, coastal troughing situated offshore will keep breezy
northerly winds in place through this afternoon, followed by
decreasing speeds tonight and Friday. Arctic high pressure building
over the Upper Midwest on Friday will push the frontal boundary
southward, crossing our local waters on Friday night, accompanied by
scattered showers. Northeasterly winds will briefly surge in the
wake of this frontal passage on Saturday. Meanwhile, a winter storm
developing over Texas and the lower Mississippi Valleys on Saturday
and Saturday night will shift northeastward, lifting a warm front
northward across our local waters on Saturday night, with chances
for showers continuing. Winds will shift to southerly and then
southwesterly on Sunday ahead of another cold front, which could be
accompanied by showers and a few thunderstorms on Sunday afternoon
and evening. Another Arctic high pressure center will then build
into the southeastern states in the wake of this cold frontal
passage early next week, with Small Craft Advisory conditions
expected as breezy northwesterly winds shift to northerly while
strengthening further on Monday night.
.GULF STREAM...
The approximate location of the west wall of the Gulf Stream as of
Jan 21, 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.
71 nautical miles east southeast of St Simons Island.
This data derived from NCEP Global RTOFS model.
$$
AMZ450-452-454-222000- 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- 1229 AM EST Thu Jan 22 2026 REST OF TONIGHT North winds 5 to 10 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 3 feet at 10 seconds and northeast 2 feet at 5 seconds. Intracoastal waters light chop. THURSDAY Northeast winds 10 to 15 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: East 4 feet at 10 seconds and northeast 2 feet at 5 seconds. Intracoastal waters a moderate chop. THURSDAY NIGHT Northeast winds 5 to 10 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: East 4 feet at 10 seconds. Intracoastal waters light chop. FRIDAY North winds 5 to 10 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at 10 seconds. Intracoastal waters light chop. FRIDAY NIGHT Northeast winds 5 to 10 knots, increasing to 10 to 15 knots after midnight. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at 10 seconds and northeast 3 feet at 4 seconds. Intracoastal waters a moderate chop. A slight chance of showers after midnight. SATURDAY Northeast winds 15 to 20 knots. Seas 4 to 5 feet, occasionally to 6 feet. Wave Detail: Northeast 4 feet at 5 seconds and east 4 feet at 10 seconds. Intracoastal waters choppy. A slight chance of showers in the morning, then a chance of showers in the afternoon. SATURDAY NIGHT Northeast winds 10 to 15 knots. Seas 4 to 5 feet, occasionally to 6 feet. Intracoastal waters a moderate chop. A slight chance of showers. SUNDAY South winds 10 to 15 knots, becoming southwest 15 to 20 knots. Seas 4 to 6 feet, occasionally to 8 feet. Intracoastal waters choppy. A slight chance of showers in the morning. A chance of showers in the afternoon, then showers likely through the night. A slight chance of thunderstorms after midnight. MONDAY Northwest winds 15 to 20 knots, becoming north 20 to 25 knots. Seas 5 to 7 feet, occasionally to 9 feet. Intracoastal waters rough. A chance of showers, mainly in the morning. Winds and waves higher in and near thunderstorms. $$
AMZ450-452-454-222000- 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- 1229 AM EST Thu Jan 22 2026 REST OF TONIGHT North winds 5 to 10 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 3 feet at 10 seconds and northeast 2 feet at 5 seconds. Intracoastal waters light chop. THURSDAY Northeast winds 10 to 15 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: East 4 feet at 10 seconds and northeast 2 feet at 5 seconds. Intracoastal waters a moderate chop. THURSDAY NIGHT Northeast winds 5 to 10 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: East 4 feet at 10 seconds. Intracoastal waters light chop. FRIDAY North winds 5 to 10 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at 10 seconds. Intracoastal waters light chop. FRIDAY NIGHT Northeast winds 5 to 10 knots, increasing to 10 to 15 knots after midnight. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at 10 seconds and northeast 3 feet at 4 seconds. Intracoastal waters a moderate chop. A slight chance of showers after midnight. SATURDAY Northeast winds 15 to 20 knots. Seas 4 to 5 feet, occasionally to 6 feet. Wave Detail: Northeast 4 feet at 5 seconds and east 4 feet at 10 seconds. Intracoastal waters choppy. A slight chance of showers in the morning, then a chance of showers in the afternoon. SATURDAY NIGHT Northeast winds 10 to 15 knots. Seas 4 to 5 feet, occasionally to 6 feet. Intracoastal waters a moderate chop. A slight chance of showers. SUNDAY South winds 10 to 15 knots, becoming southwest 15 to 20 knots. Seas 4 to 6 feet, occasionally to 8 feet. Intracoastal waters choppy. A slight chance of showers in the morning. A chance of showers in the afternoon, then showers likely through the night. A slight chance of thunderstorms after midnight. MONDAY Northwest winds 15 to 20 knots, becoming north 20 to 25 knots. Seas 5 to 7 feet, occasionally to 9 feet. Intracoastal waters rough. A chance of showers, mainly in the morning. Winds and waves higher in and near thunderstorms. $$