AMZ400-230230-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
724 AM EDT Sat Aug 22 2026
.SYNOPSIS...
A frontal zone will extend across the Carolinas and into Georgia
with a high pressure ridge to the southeast. Rounds of mainly
afternoon and evening showers and thunderstorms can be expected each
day. Brief southerly wind surges are expected during the late
afternoon and evening hours as the Atlantic sea breeze shifts
onshore. But, winds are expected to remain below Small Craft
Exercise Caution levels. The cold front will push into the local
waters Sunday night into Monday and then lift back northward as a
warm front by mid-week.
.GULF STREAM...
The approximate location of the west wall of the Gulf Stream as of
Aug 21, 2026 at 0000 UTC...
54 nautical miles east of Flagler Beach.
58 nautical miles east of Saint Augustine Beach.
70 nautical miles east southeast of Jacksonville Beach.
81 nautical miles east southeast of St Simons Island.
This data derived from NCEP Global RTOFS model.
$$
AMZ450-452-454-230230- Coastal waters from Altamaha Sound to Fernandina Beach FL out 20 NM- Coastal waters from Fernandina Beach to St. Augustine FL out 20 NM- Coastal waters from St. Augustine to Flagler Beach FL out 20 NM- 724 AM EDT Sat Aug 22 2026 TODAY Southwest winds around 10 knots, becoming south this afternoon. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 4 seconds. Intracoastal waters a moderate chop. A chance of showers with a slight chance of thunderstorms this afternoon. TONIGHT Southwest winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 5 seconds. Intracoastal waters a moderate chop. A chance of showers with a slight chance of thunderstorms in the evening. SUNDAY Southwest winds around 10 knots, becoming south in the afternoon. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 5 seconds. Intracoastal waters a moderate chop. A slight chance of showers and thunderstorms in the afternoon. SUNDAY NIGHT Southwest winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 5 seconds. Intracoastal waters a moderate chop. A slight chance of showers in the evening. MONDAY Southwest winds 5 to 10 knots, becoming southeast 10 to 15 knots in the afternoon. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at 5 seconds. Intracoastal waters a moderate chop. MONDAY NIGHT South winds 10 to 15 knots, becoming southwest 5 to 10 knots after midnight. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 5 seconds. Intracoastal waters a moderate chop. A slight chance of showers and thunderstorms in the evening. TUESDAY THROUGH WEDNESDAY South winds 10 to 15 knots. Seas 2 to 3 feet. Intracoastal waters a moderate chop. A chance of showers and thunderstorms. Winds and waves higher in and near thunderstorms. $$
AMZ450-452-454-230230- 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- 724 AM EDT Sat Aug 22 2026 TODAY Southwest winds around 10 knots, becoming south this afternoon. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 4 seconds. Intracoastal waters a moderate chop. A chance of showers with a slight chance of thunderstorms this afternoon. TONIGHT Southwest winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 5 seconds. Intracoastal waters a moderate chop. A chance of showers with a slight chance of thunderstorms in the evening. SUNDAY Southwest winds around 10 knots, becoming south in the afternoon. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 5 seconds. Intracoastal waters a moderate chop. A slight chance of showers and thunderstorms in the afternoon. SUNDAY NIGHT Southwest winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 5 seconds. Intracoastal waters a moderate chop. A slight chance of showers in the evening. MONDAY 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. Intracoastal waters a moderate chop. MONDAY NIGHT South winds 10 to 15 knots, becoming southwest 5 to 10 knots after midnight. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 5 seconds. Intracoastal waters a moderate chop. A slight chance of showers and thunderstorms in the evening. TUESDAY THROUGH WEDNESDAY South winds 10 to 15 knots. Seas 2 to 3 feet. Intracoastal waters a moderate chop. A chance of showers and thunderstorms. Winds and waves higher in and near thunderstorms. $$