605
FZUS52 KJAX 062203
CWFJAX

Coastal Waters Forecast for Northeast Florida/Southeast Georgia
National Weather Service Jacksonville FL
603 PM EDT Thu Aug 6 2026

Atlantic Coastal Waters from Altamaha Sound GA to Flagler Beach
FL out to 60 nm.

Seas are provided as a range of the average height of the highest
1/3 of the waves, along with the occasional height of the average
highest 1/10 of the waves.

AMZ400-071315-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
603 PM EDT Thu Aug 6 2026

.SYNOPSIS...

High pressure centered over Bermuda will build westward toward the
United States east coast through the weekend shifting flow from east
and southeast today to more east late this week and into the
upcoming weekend. A trough of low pressure will move into the area
on Friday, which will increase east winds up to 15 knots with seas
building to near 5 feet from Friday into Saturday. Daily rounds of
showers and thunderstorms will also continue, some of which will
produce strong gusty winds, heavy rain, and frequent lightning
strikes.


.GULF STREAM...

The approximate location of the west wall of the Gulf Stream as of
Aug 06, 2026 at 0000 UTC...

 46 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.


$$

AMZ450-452-454-071315-
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-
603 PM EDT Thu Aug 6 2026

.TONIGHT...Southeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 3 feet at 7 seconds. Intracoastal waters a
moderate chop. A chance of showers with a slight chance of
thunderstorms this evening, then a slight chance of showers after
midnight.
.FRIDAY...East winds 10 to 15 knots. Seas 2 to 4 feet,
occasionally to 5 feet. Wave Detail: East 4 feet at 7 seconds.
Intracoastal waters a moderate chop. Showers and thunderstorms
likely.
.FRIDAY NIGHT...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 chance of showers with a slight chance
of thunderstorms in the evening, then showers likely with a
chance of thunderstorms after midnight.
.SATURDAY...Southeast 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 chance of thunderstorms.
Showers likely, mainly in the morning.
.SATURDAY NIGHT...South 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 and
thunderstorms.
.SUNDAY...South winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: East 3 feet at 8 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.
.SUNDAY NIGHT...South winds 5 to 10 knots. Seas 2 to 3 feet.
Intracoastal waters light chop. A slight chance of showers and
thunderstorms in the evening.
.MONDAY THROUGH TUESDAY...Southwest winds 10 to 15 knots. Seas
2 to 3 feet. Intracoastal waters a moderate chop. A slight chance
of showers and thunderstorms.

Winds and waves higher in and near thunderstorms.

$$

AMZ470-472-071315-
Waters from Altamaha Sound GA to Fernandina Beach FL from 20 to
60 NM-
Waters from Fernandina Beach to St. Augustine FL from 20 to 60 NM-
603 PM EDT Thu Aug 6 2026

.TONIGHT...Southeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 3 feet at 7 seconds. A chance of showers with a
slight chance of thunderstorms this evening, then a slight chance
of showers after midnight.
.FRIDAY...East winds 10 to 15 knots. Seas 3 to 5 feet,
occasionally to 6 feet. Wave Detail: East 5 feet at 7 seconds. A
chance of showers and thunderstorms in the morning, then showers
and thunderstorms likely in the afternoon.
.FRIDAY NIGHT...Southeast winds 10 to 15 knots. Seas 4 to 5 feet,
occasionally to 6 feet. Wave Detail: Southeast 5 feet at
8 seconds. A slight chance of showers and thunderstorms in the
evening, then showers likely with a chance of thunderstorms after
midnight.
.SATURDAY...Southeast winds 5 to 10 knots. Seas 4 to 5 feet,
occasionally to 6 feet. Wave Detail: Southeast 5 feet at
8 seconds. A chance of thunderstorms. Showers likely, mainly in
the morning.
.SATURDAY NIGHT...South winds 5 to 10 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Wave Detail: East 4 feet at 8 seconds. A
slight chance of thunderstorms. A slight chance of showers in the
evening, then a chance of showers after midnight.
.SUNDAY...South winds 5 to 10 knots. Seas around 3 feet. Wave
Detail: Southeast 3 feet at 8 seconds. A chance of showers and
thunderstorms in the morning.
.SUNDAY NIGHT...South winds 5 to 10 knots. Seas around 3 feet. A
slight chance of showers and thunderstorms.
.MONDAY THROUGH TUESDAY...Southwest winds 10 to 15 knots. Seas
2 to 3 feet.

Winds and seas higher in and near thunderstorms.

$$

AMZ474-071315-
Waters from St. Augustine to Flagler Beach FL from 20 to 60 NM-
603 PM EDT Thu Aug 6 2026

...SMALL CRAFT EXERCISE CAUTION IN EFFECT FROM 6 AM EDT FRIDAY
THROUGH LATE FRIDAY NIGHT...

.TONIGHT...East winds 10 to 15 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Wave Detail: East 4 feet at 7 seconds. A
chance of showers with a slight chance of thunderstorms.
.FRIDAY...East winds 15 to 20 knots. Seas 4 to 6 feet,
occasionally to 8 feet. Wave Detail: East 6 feet at 8 seconds.
Showers and thunderstorms.
.FRIDAY NIGHT...Southeast winds 10 to 15 knots. Seas 5 to 6 feet,
occasionally to 8 feet. Wave Detail: East 6 feet at 8 seconds. A
chance of thunderstorms. A chance of showers in the evening, then
showers likely after midnight.
.SATURDAY...Southeast winds around 10 knots. Seas 4 to 5 feet,
occasionally to 6 feet. Wave Detail: East 5 feet at 8 seconds. A
chance of thunderstorms. Showers likely, mainly in the morning.
.SATURDAY NIGHT AND SUNDAY...Southeast winds 5 to 10 knots. Seas
3 to 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at
8 seconds. A slight chance of showers and thunderstorms.
.SUNDAY NIGHT...South winds 5 to 10 knots. Seas around 3 feet.
Wave Detail: East 3 feet at 8 seconds.
.MONDAY THROUGH TUESDAY...Southwest winds 10 to 15 knots. Seas
2 to 3 feet.

Winds and seas higher in and near thunderstorms.

$$