AMZ400-010900-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
232 PM EDT Thu Apr 30 2026
.SYNOPSIS...
A cold front will move into southeast Georgia this afternoon and
then into northeast Florida late tonight. This front will then stall
across the northeast Florida waters Friday then begin to lift north
as a warm front Friday night. This front will be accompanied by
scattered showers and a few thunderstorms at times through Friday
night. A wave of low pressure will then develop over the Gulf by
late Friday night or Saturday, with widespread showers and a few
strong to severe thunderstorms overspreading the local waters on
Saturday, with activity expected to continue into Saturday night.
Small Craft Advisory conditions may develop on Saturday as southwest
winds increase. The front will shift south of the northeast Florida
waters on Saturday night, resulting in winds shifting to northerly.
Breezy northeast winds are then expected on Sunday as high pressure
builds into the southeastern states, with diminishing winds and seas
early next week as the high pressure builds over the local waters.
.GULF STREAM...
The approximate location of the west wall of the Gulf Stream as of
Apr 30, 2026 at 0000 UTC...
67 nautical miles east of Flagler Beach.
70 nautical miles east of Saint Augustine Beach.
88 nautical miles east southeast of Jacksonville Beach.
89 nautical miles east southeast of St Simons Island.
This data derived from NCEP Global RTOFS model.
$$
AMZ450-452-454-010900- 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- 232 PM EDT Thu Apr 30 2026 REST OF TODAY South winds around 10 knots. Seas 2 to 3 feet. Wave Detail: South 2 feet at 4 seconds and east 2 feet at 10 seconds. Intracoastal waters light chop. A chance of showers and thunderstorms. TONIGHT South winds around 10 knots, becoming northwest after midnight. Seas 2 to 3 feet. Wave Detail: South 2 feet at 4 seconds and east 2 feet at 10 seconds. Intracoastal waters light chop. A chance of showers with a slight chance of thunderstorms in the evening, then a slight chance of showers after midnight. FRIDAY Northeast winds 5 to 10 knots. Seas around 2 feet. Wave Detail: East 2 feet at 10 seconds. Intracoastal waters light chop. A chance of showers. A chance of thunderstorms in the afternoon. FRIDAY NIGHT Northeast winds 5 to 10 knots, becoming south after midnight. Seas 2 to 3 feet. Wave Detail: Northeast 2 feet at 11 seconds. Intracoastal waters light chop. A chance of showers with a slight chance of thunderstorms in the evening, then a slight chance of showers after midnight. SATURDAY Southwest winds 15 to 20 knots, becoming west 20 to 25 knots in the afternoon. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: West 4 feet at 4 seconds and east 2 feet at 9 seconds. Intracoastal waters rough. A chance of showers in the morning, then showers with a chance of thunderstorms in the afternoon. SATURDAY NIGHT North winds 20 to 25 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: North 6 feet at 6 seconds. Intracoastal waters rough. Showers likely with a slight chance of thunderstorms in the evening, then a chance of showers after midnight. SUNDAY North winds 20 to 25 knots, becoming northeast 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. MONDAY East winds 5 to 10 knots. Seas 2 to 4 feet, occasionally to 5 feet. Intracoastal waters light chop. Winds and waves higher in and near thunderstorms. $$
AMZ450-452-454-010900- 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- 232 PM EDT Thu Apr 30 2026 REST OF TODAY South winds around 10 knots. Seas 2 to 3 feet. Wave Detail: South 2 feet at 4 seconds and east 2 feet at 10 seconds. Intracoastal waters light chop. A chance of showers and thunderstorms. TONIGHT South winds around 10 knots, becoming northwest after midnight. Seas 2 to 3 feet. Wave Detail: South 2 feet at 4 seconds and east 2 feet at 10 seconds. Intracoastal waters light chop. A chance of showers with a slight chance of thunderstorms in the evening, then a slight chance of showers after midnight. FRIDAY Northeast winds 5 to 10 knots. Seas around 2 feet. Wave Detail: East 2 feet at 10 seconds. Intracoastal waters light chop. A chance of showers. A chance of thunderstorms in the afternoon. FRIDAY NIGHT Northeast winds 5 to 10 knots, becoming south after midnight. Seas 2 to 3 feet. Wave Detail: Northeast 2 feet at 11 seconds. Intracoastal waters light chop. A chance of showers with a slight chance of thunderstorms in the evening, then a slight chance of showers after midnight. SATURDAY Southwest winds 15 to 20 knots, becoming west 20 to 25 knots in the afternoon. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: West 4 feet at 4 seconds and east 2 feet at 9 seconds. Intracoastal waters rough. A chance of showers in the morning, then showers with a chance of thunderstorms in the afternoon. SATURDAY NIGHT North winds 20 to 25 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: North 6 feet at 6 seconds. Intracoastal waters rough. Showers likely with a slight chance of thunderstorms in the evening, then a chance of showers after midnight. SUNDAY North winds 20 to 25 knots, becoming northeast 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. MONDAY East winds 5 to 10 knots. Seas 2 to 4 feet, occasionally to 5 feet. Intracoastal waters light chop. Winds and waves higher in and near thunderstorms. $$