AMZ400-152000-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
105 AM EDT Sun Mar 15 2026
.SYNOPSIS...
A warm front will lift north of the local waters this morning. Some
patchy fog may also form this morning near the coast. Showers and
isolated strong thunderstorms are expected this afternoon and
evening. South winds will strengthen to Caution levels this evening
across our local waters ahead of a strong cold front with
Small Craft Advisory conditions developing late tonight.
Strong to severe thunderstorms will be possible on Monday as the
strong cold front crosses our local waters. Small Craft Advisory
conditions will overspread over the waters early in the day. The
cold front will cross over the waters Monday afternoon with
strengthening northwest winds behind it. Occasional gusts to Gale
Force are possible by Monday afternoon and night. Strong high
pressure will build to the north of the area mid week creating
strong northeast winds and rough seas.
.GULF STREAM...
The approximate location of the west wall of the Gulf Stream as of
Mar 14, 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.
$$
AMZ450-452-454-152000- 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- 105 AM EDT Sun Mar 15 2026 REST OF TONIGHT East winds 5 to 10 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at 8 seconds. Intracoastal waters light chop. A slight chance of showers. Patchy fog. SUNDAY Southeast winds 5 to 10 knots, increasing to 10 to 15 knots in the afternoon. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: Southeast 4 feet at 7 seconds. Intracoastal waters a moderate chop. Areas of fog in the morning. A slight chance of showers in the morning, then showers likely with a chance of thunderstorms in the afternoon. SUNDAY NIGHT South winds 15 to 20 knots. Seas 4 to 5 feet, occasionally to 6 feet. Wave Detail: Southeast 4 feet at 7 seconds. Intracoastal waters choppy. Showers likely with a chance of thunderstorms in the evening, then a chance of showers after midnight. MONDAY Southwest winds 15 to 20 knots. Seas 4 to 5 feet, occasionally to 6 feet. Wave Detail: Southeast 5 feet at 7 seconds and southwest 2 feet at 4 seconds. Intracoastal waters choppy. Showers likely with a slight chance of thunderstorms in the morning, then showers with a chance of thunderstorms in the afternoon. MONDAY NIGHT Northwest winds 25 to 30 knots. Seas 5 to 7 feet, occasionally to 9 feet. Wave Detail: Northwest 6 feet at 5 seconds and southeast 4 feet at 8 seconds. Intracoastal waters very rough. A chance of showers with a slight chance of thunderstorms in the evening. TUESDAY Northwest winds 20 to 25 knots, becoming north 10 to 15 knots in the afternoon. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: North 6 feet at 5 seconds and southeast 2 feet at 8 seconds. Intracoastal waters rough. TUESDAY NIGHT North winds 10 to 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. Intracoastal waters a moderate chop. WEDNESDAY North winds 15 to 20 knots, increasing to 20 to 25 knots. Seas 4 to 6 feet, occasionally to 8 feet. Intracoastal waters rough. THURSDAY North winds 20 to 25 knots, diminishing to 10 to 15 knots. Seas 5 to 7 feet, occasionally to 9 feet. Intracoastal waters rough. Winds and waves higher in and near thunderstorms. $$
AMZ450-452-454-152000- 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- 105 AM EDT Sun Mar 15 2026 REST OF TONIGHT East winds 5 to 10 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at 8 seconds. Intracoastal waters light chop. A slight chance of showers. Patchy fog. SUNDAY Southeast winds 5 to 10 knots, increasing to 10 to 15 knots in the afternoon. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: Southeast 4 feet at 7 seconds. Intracoastal waters a moderate chop. Areas of fog in the morning. A slight chance of showers in the morning, then showers likely with a chance of thunderstorms in the afternoon. SUNDAY NIGHT South winds 15 to 20 knots. Seas 4 to 5 feet, occasionally to 6 feet. Wave Detail: Southeast 4 feet at 7 seconds. Intracoastal waters choppy. Showers likely with a chance of thunderstorms in the evening, then a chance of showers after midnight. MONDAY Southwest winds 15 to 20 knots. Seas 4 to 5 feet, occasionally to 6 feet. Wave Detail: Southeast 5 feet at 7 seconds and southwest 2 feet at 4 seconds. Intracoastal waters choppy. Showers likely with a slight chance of thunderstorms in the morning, then showers with a chance of thunderstorms in the afternoon. MONDAY NIGHT Northwest winds 25 to 30 knots. Seas 5 to 7 feet, occasionally to 9 feet. Wave Detail: Northwest 6 feet at 5 seconds and southeast 4 feet at 8 seconds. Intracoastal waters very rough. A chance of showers with a slight chance of thunderstorms in the evening. TUESDAY Northwest winds 20 to 25 knots, becoming north 10 to 15 knots in the afternoon. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: North 6 feet at 5 seconds and southeast 2 feet at 8 seconds. Intracoastal waters rough. TUESDAY NIGHT North winds 10 to 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. Intracoastal waters a moderate chop. WEDNESDAY North winds 15 to 20 knots, increasing to 20 to 25 knots. Seas 4 to 6 feet, occasionally to 8 feet. Intracoastal waters rough. THURSDAY North winds 20 to 25 knots, diminishing to 10 to 15 knots. Seas 5 to 7 feet, occasionally to 9 feet. Intracoastal waters rough. Winds and waves higher in and near thunderstorms. $$