AMZ400-231515-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
804 PM EDT Wed Jul 22 2026
.SYNOPSIS...
Breezy south winds up to caution level criteria are expected across
area waters through late tonight. Winds will then gradually diminish
by Thursday morning as high pressure builds directly over our
local waters. Unseasonably dry conditions will prevail through
Friday night. A frontal boundary will then stall just north of the
Georgia waters this weekend, with this feature potentially
increasing chances for showers and thunderstorms through early
next week. Prevailing west winds are expected by Sunday and
Monday, with the afternoon sea breeze shifting winds across the
near shore waters to southeast during the afternoon hours.
.GULF STREAM...
The approximate location of the west wall of the Gulf Stream as of
Jul 22, 2026 at 0000 UTC...
42 nautical miles east of Flagler Beach.
49 nautical miles east of Saint Augustine Beach.
60 nautical miles east southeast of Jacksonville Beach.
71 nautical miles east southeast of St Simons Island.
This data derived from NCEP Global RTOFS model.
$$
AMZ450-452-454-231515- Coastal waters from Altamaha Sound to Fernandina Beach FL out 20 NM- Coastal waters from Fernandina Beach to St. Augustine FL out 20 NM- Coastal waters from St. Augustine to Flagler Beach FL out 20 NM- 804 PM EDT Wed Jul 22 2026 SMALL CRAFT EXERCISE CAUTION IN EFFECT UNTIL 4 AM EDT THURSDAY REST OF TONIGHT South winds 15 to 20 knots, diminishing to 10 to 15 knots late. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: Southeast 4 feet at 5 seconds. Intracoastal waters choppy. THURSDAY South winds 5 to 10 knots, becoming southeast 10 to 15 knots in the afternoon. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 7 seconds. Intracoastal waters a moderate chop. THURSDAY NIGHT Southeast winds 10 to 15 knots, becoming south 5 to 10 knots after midnight. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at 5 seconds and southeast 2 feet at 8 seconds. Intracoastal waters a moderate chop. FRIDAY Southeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 8 seconds. Intracoastal waters light chop. FRIDAY NIGHT South winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 8 seconds. Intracoastal waters light chop. SATURDAY AND SATURDAY NIGHT Southwest winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: East 3 feet at 8 seconds and southeast 2 feet at 3 seconds. Intracoastal waters light chop. A chance of showers and thunderstorms. SUNDAY Southwest winds 5 to 10 knots, increasing to 10 to 15 knots. Seas 2 to 3 feet. Intracoastal waters a moderate chop. A slight chance of showers and thunderstorms in the morning, then a chance of showers and thunderstorms through the night. A slight chance of showers and thunderstorms after midnight. MONDAY South winds 5 to 10 knots. Seas 2 to 3 feet. Intracoastal waters light chop. A slight chance of showers and thunderstorms through the night. Winds and waves higher in and near thunderstorms. $$
AMZ450-452-454-231515- 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- 804 PM EDT Wed Jul 22 2026 SMALL CRAFT EXERCISE CAUTION IN EFFECT UNTIL 4 AM EDT THURSDAY REST OF TONIGHT South winds 15 to 20 knots, diminishing to 10 to 15 knots late. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: Southeast 4 feet at 5 seconds. Intracoastal waters choppy. THURSDAY South winds 5 to 10 knots, becoming southeast 10 to 15 knots in the afternoon. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 7 seconds. Intracoastal waters a moderate chop. THURSDAY NIGHT Southeast winds 10 to 15 knots, becoming south 5 to 10 knots after midnight. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at 5 seconds and southeast 2 feet at 8 seconds. Intracoastal waters a moderate chop. FRIDAY Southeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 8 seconds. Intracoastal waters light chop. FRIDAY NIGHT South winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 8 seconds. Intracoastal waters light chop. SATURDAY AND SATURDAY NIGHT Southwest winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: East 3 feet at 8 seconds and southeast 2 feet at 3 seconds. Intracoastal waters light chop. A chance of showers and thunderstorms. SUNDAY Southwest winds 5 to 10 knots, increasing to 10 to 15 knots. Seas 2 to 3 feet. Intracoastal waters a moderate chop. A slight chance of showers and thunderstorms in the morning, then a chance of showers and thunderstorms through the night. A slight chance of showers and thunderstorms after midnight. MONDAY South winds 5 to 10 knots. Seas 2 to 3 feet. Intracoastal waters light chop. A slight chance of showers and thunderstorms through the night. Winds and waves higher in and near thunderstorms. $$