AMZ400-100900-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
226 PM EDT Wed Sep 9 2026
.SYNOPSIS...
A stalled frontal boundary positioned across central Florida will
lift slowly northward as a warm front late this afternoon and
tonight before dissipating over the northeast Florida waters on
Thursday. Meanwhile, strong high pressure stretching across the
Carolinas and the southern Appalachians will gradually weaken as it
shifts offshore of the southeastern states tonight and Thursday as a
cold front pushes through the Ohio and Tennessee Valleys. This
weather pattern will result in gradually weakening onshore winds
that will allow seas to subside below Caution levels over the
Georgia and offshore waters adjacent to northeast Florida this
afternoon. Showers and a few embedded thunderstorms will remain
possible through tonight, with a decrease in activity possible on
Thursday. Prevailing winds will become southerly tonight and
Thursday and then southwesterly from Friday through the upcoming
weekend, with the afternoon sea breeze shifting winds to
southeasterly each afternoon across the near shore waters. Showers
and thunderstorms developing over coastal locations during the
afternoon hours will shift eastward across our local waters during
the late afternoon and evening hours from Friday through the
upcoming weekend.
.GULF STREAM...
The approximate location of the west wall of the Gulf Stream as of
Sep 09, 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.
$$
AMZ450-452-454-100900- 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- 226 PM EDT Wed Sep 9 2026 REST OF TODAY East winds 10 to 15 knots. Seas around 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at 8 seconds. Intracoastal waters a moderate chop. A chance of showers with a slight chance of thunderstorms. TONIGHT Southeast winds 10 to 15 knots, diminishing to 5 to 10 knots after midnight. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at 8 seconds. Intracoastal waters a moderate chop. A slight chance of showers and thunderstorms after midnight. THURSDAY Southeast winds 5 to 10 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 3 feet at 7 seconds. Intracoastal waters light chop. A slight chance of showers and thunderstorms in the afternoon. THURSDAY NIGHT South winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: East 3 feet at 7 seconds and southeast 2 feet at 4 seconds. Intracoastal waters light chop. A slight chance of showers and thunderstorms. FRIDAY Southwest winds around 5 knots, becoming southeast in the afternoon. Seas 2 to 3 feet. Wave Detail: East 2 feet at 7 seconds. Intracoastal waters light chop. A slight chance of showers and thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. FRIDAY NIGHT South winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at 4 seconds and east 2 feet at 7 seconds. Intracoastal waters light chop. A chance of showers and thunderstorms, mainly in the evening. SATURDAY South winds 5 to 10 knots. Seas 2 to 3 feet. Intracoastal waters light chop. A chance of showers and thunderstorms through the day, then a slight chance of showers and thunderstorms through the night. SUNDAY South winds 5 to 10 knots. Seas around 2 feet. Intracoastal waters light chop. A slight chance of showers and thunderstorms. Winds and waves higher in and near thunderstorms. $$
AMZ450-452-454-100900- 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- 226 PM EDT Wed Sep 9 2026 REST OF TODAY East winds 10 to 15 knots. Seas around 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at 8 seconds. Intracoastal waters a moderate chop. A chance of showers with a slight chance of thunderstorms. TONIGHT Southeast winds 10 to 15 knots, diminishing to 5 to 10 knots after midnight. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at 8 seconds. Intracoastal waters a moderate chop. A slight chance of showers and thunderstorms after midnight. THURSDAY Southeast winds 5 to 10 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 3 feet at 7 seconds. Intracoastal waters light chop. A slight chance of showers and thunderstorms in the afternoon. THURSDAY NIGHT South winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: East 3 feet at 7 seconds and southeast 2 feet at 4 seconds. Intracoastal waters light chop. A slight chance of showers and thunderstorms. FRIDAY Southwest winds around 5 knots, becoming southeast in the afternoon. Seas 2 to 3 feet. Wave Detail: East 2 feet at 7 seconds. Intracoastal waters light chop. A slight chance of showers and thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. FRIDAY NIGHT South winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at 4 seconds and east 2 feet at 7 seconds. Intracoastal waters light chop. A chance of showers and thunderstorms, mainly in the evening. SATURDAY South winds 5 to 10 knots. Seas 2 to 3 feet. Intracoastal waters light chop. A chance of showers and thunderstorms through the day, then a slight chance of showers and thunderstorms through the night. SUNDAY South winds 5 to 10 knots. Seas around 2 feet. Intracoastal waters light chop. A slight chance of showers and thunderstorms. Winds and waves higher in and near thunderstorms. $$