AMZ400-240900-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
239 PM EDT Thu Apr 23 2026
.SYNOPSIS...
High pressure along the southeastern seaboard will gradually weaken
and shift southeastward through Friday night. Southeasterly winds
will increase across the nearshore waters each afternoon through
Saturday as the Atlantic sea breeze moves inland. Winds will shift
to southerly during the evening hours and become southwesterly
overnight.
A frontal boundary will approach the southeastern states by Saturday
evening, bringing a chance of isolated showers and thunderstorms
during the afternoon. This boundary is expected to stall near the
Georgia waters Saturday night into Sunday, resulting in widely
scattered showers and thunderstorms. The front will lift northward
early next week ahead of another system expected to approach the
local waters by the middle of next week.
.GULF STREAM...
The approximate location of the west wall of the Gulf Stream as of
Apr 23, 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.
76 nautical miles east southeast of St Simons Island.
This data derived from NCEP Global RTOFS model.
$$
AMZ450-452-454-240900- 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- 240 PM EDT Thu Apr 23 2026 REST OF TODAY Southeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: East 3 feet at 8 seconds. Intracoastal waters light chop. TONIGHT South winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: East 3 feet at 8 seconds. Intracoastal waters light chop. FRIDAY South winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: East 2 feet at 8 seconds. Intracoastal waters light chop. FRIDAY NIGHT South winds 10 to 15 knots, becoming southwest 5 to 10 knots after midnight. Seas 2 to 3 feet. Wave Detail: East 3 feet at 9 seconds and southeast 2 feet at 4 seconds. Intracoastal waters a moderate chop. SATURDAY Southwest winds 5 to 10 knots, becoming southeast 10 to 15 knots in the afternoon. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at 5 seconds and east 2 feet at 9 seconds. Intracoastal waters a moderate chop. A slight chance of showers and thunderstorms in the afternoon. SATURDAY NIGHT South winds 10 to 15 knots, becoming southwest 5 to 10 knots after midnight. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at 4 seconds. Intracoastal waters a moderate chop. A chance of showers with a slight chance of thunderstorms in the evening, then a slight chance of showers after midnight. SUNDAY East winds 5 to 10 knots. Seas around 2 feet. Intracoastal waters light chop. A slight chance of showers in the morning, then a chance of showers with a slight chance of thunderstorms through the night. A slight chance of showers after midnight. MONDAY Northeast winds 10 to 15 knots, becoming southeast 5 to 10 knots. Seas 2 to 4 feet, occasionally to 5 feet. Intracoastal waters a moderate chop. A slight chance of showers in the morning, then a slight chance of showers and thunderstorms in the afternoon. Winds and waves higher in and near thunderstorms. $$
AMZ450-452-454-240900- 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- 240 PM EDT Thu Apr 23 2026 REST OF TODAY Southeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: East 3 feet at 8 seconds. Intracoastal waters light chop. TONIGHT South winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: East 3 feet at 8 seconds. Intracoastal waters light chop. FRIDAY South winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: East 2 feet at 8 seconds. Intracoastal waters light chop. FRIDAY NIGHT South winds 10 to 15 knots, becoming southwest 5 to 10 knots after midnight. Seas 2 to 3 feet. Wave Detail: East 3 feet at 9 seconds and southeast 2 feet at 4 seconds. Intracoastal waters a moderate chop. SATURDAY Southwest winds 5 to 10 knots, becoming southeast 10 to 15 knots in the afternoon. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at 5 seconds and east 2 feet at 9 seconds. Intracoastal waters a moderate chop. A slight chance of showers and thunderstorms in the afternoon. SATURDAY NIGHT South winds 10 to 15 knots, becoming southwest 5 to 10 knots after midnight. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at 4 seconds. Intracoastal waters a moderate chop. A chance of showers with a slight chance of thunderstorms in the evening, then a slight chance of showers after midnight. SUNDAY East winds 5 to 10 knots. Seas around 2 feet. Intracoastal waters light chop. A slight chance of showers in the morning, then a chance of showers with a slight chance of thunderstorms through the night. A slight chance of showers after midnight. MONDAY Northeast winds 10 to 15 knots, becoming southeast 5 to 10 knots. Seas 2 to 4 feet, occasionally to 5 feet. Intracoastal waters a moderate chop. A slight chance of showers in the morning, then a slight chance of showers and thunderstorms in the afternoon. Winds and waves higher in and near thunderstorms. $$