AMZ400-210015-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
408 AM EST Tue Jan 20 2026
.SYNOPSIS...
Arctic high pressure building into the southeastern states today
will shift across the southern Appalachians tonight, moving
offshore of the Delmarva peninsula on Wednesday morning. This
feature will provide breezy northerly winds and elevated seas to
our local waters today, with winds shifting to northeasterly
tonight. Northeasterly winds will then gradually weaken on
Wednesday and Thursday as high pressure extends its axis across
the southeastern states. A few showers will be possible late this
week ahead of a cold front that will be entering the southeastern
states on Friday. Chances for showers will then increase this
weekend as this frontal boundary moves slowly southward across our
local waters, providing for strengthening northeasterly winds on
Saturday that will shift to northwesterly on Saturday night as
this front shifts south of the northeast Florida waters.
.GULF STREAM...
The approximate location of the west wall of the Gulf Stream as of
Jan 19, 2026 at 0000 UTC...
50 nautical miles east of Flagler Beach.
58 nautical miles east of Saint Augustine Beach.
70 nautical miles east southeast of Jacksonville Beach.
71 nautical miles east southeast of St Simons Island.
This data derived from NCEP Global RTOFS model.
$$
AMZ450-452-454-210015- Coastal waters from Altamaha Sound to Fernandina Beach FL out 20 NM- Coastal waters from Fernandina Beach to St. Augustine FL out 20 NM- Coastal waters from St. Augustine to Flagler Beach FL out 20 NM- 408 AM EST Tue Jan 20 2026 SMALL CRAFT EXERCISE CAUTION IN EFFECT THROUGH THIS EVENING TODAY North winds 15 to 20 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: North 4 feet at 5 seconds and east 2 feet at 8 seconds. Intracoastal waters choppy. TONIGHT North northeast winds around 15 knots this evening, becoming northeast and diminishing to 10 to 15 knots after midnight. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: North 4 feet at 5 seconds and east 2 feet at 9 seconds. Intracoastal waters becoming a light chop. WEDNESDAY North northeast winds 10 to 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: Northeast 3 feet at 5 seconds and east 2 feet at 9 seconds. Intracoastal waters a light chop. WEDNESDAY NIGHT Northeast winds around 10 knots, becoming north after midnight. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 3 feet at 10 seconds and northeast 2 feet at 5 seconds. Intracoastal waters A light chop. THURSDAY AND THURSDAY NIGHT North northeast winds 10 to 15 knots, becoming northeast 5 to 10 knots after midnight. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at 10 seconds and northeast 2 feet at 6 seconds. Intracoastal waters a light chop. FRIDAY AND FRIDAY NIGHT North northeast winds around 10 knots, becoming northeast and increasing to 10 to 15 knots after midnight. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at 10 seconds. Intracoastal waters a light chop. A slight chance of showers. SATURDAY Northeast winds around 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Intracoastal waters a moderate chop. A slight chance of showers in the morning, then a chance of showers during the afternoon. $$
AMZ450-452-454-210015- 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- 408 AM EST Tue Jan 20 2026 SMALL CRAFT EXERCISE CAUTION IN EFFECT THROUGH THIS EVENING TODAY North 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 8 seconds. Intracoastal waters choppy. TONIGHT North northeast winds around 15 knots this evening, becoming northeast and diminishing to 10 to 15 knots after midnight. 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 becoming a light chop. WEDNESDAY North 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 2 feet at 9 seconds. Intracoastal waters a light chop. WEDNESDAY NIGHT Northeast winds around 10 knots, becoming north after midnight. 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 A light chop. THURSDAY AND THURSDAY NIGHT North northeast winds 10 to 15 knots, becoming northeast 5 to 10 knots after midnight. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at 10 seconds and northeast 2 feet at 6 seconds. Intracoastal waters a light chop. FRIDAY AND FRIDAY NIGHT North northeast winds around 10 knots, becoming northeast and 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. Intracoastal waters a light chop. A slight chance of showers. SATURDAY Northeast winds around 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Intracoastal waters a moderate chop. A slight chance of showers in the morning, then a chance of showers during the afternoon. $$