869
FZUS52 KJAX 240017
CWFJAX

Coastal Waters Forecast for Northeast Florida/Southeast Georgia
National Weather Service Jacksonville FL
817 PM EDT Sun Aug 23 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.

AMZ400-241530-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
817 PM EDT Sun Aug 23 2026

.SYNOPSIS...

A stalled front near the Georgia coastal waters will linger through
Monday before dissolving through the week. Main maritime concern
will be increasing potential for afternoon and evening
thunderstorms each day during the upcoming week. The steering
winds will generally move thunderstorms from the shoreline toward
the offshore waters during the evening hours. Outside of
thunderstorm influences, low to calm seas and light offshore winds
persist.


.GULF STREAM...

The approximate location of the west wall of the Gulf Stream as of
Aug 23, 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.
 76 nautical miles east southeast of St Simons Island.

This data derived from NCEP Global RTOFS model.


$$

AMZ450-452-454-241530-
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-
817 PM EDT Sun Aug 23 2026

.TONIGHT...Southwest winds around 10 knots. Seas 2 to 3 feet.
Wave Detail: South 2 feet at 4 seconds. Intracoastal waters light
chop.
.MONDAY...Southwest winds 5 to 10 knots, becoming southeast 10 to
15 knots in the afternoon. Seas 2 to 3 feet. Wave Detail: South
2 feet at 4 seconds and east 2 feet at 8 seconds. Intracoastal
waters a moderate chop. A slight chance of showers and
thunderstorms in the afternoon.
.MONDAY NIGHT...Southwest winds 10 to 15 knots, diminishing to
5 to 10 knots after midnight. Seas 2 to 3 feet. Wave Detail:
Southeast 2 feet at 4 seconds. Intracoastal waters a moderate
chop. A chance of showers with a slight chance of thunderstorms
in the evening.
.TUESDAY...Southwest winds 5 to 10 knots, becoming south in the
afternoon. Seas around 2 feet. Wave Detail: Southeast 2 feet at
4 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.
.TUESDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: Southeast 2 feet at 4 seconds. Intracoastal waters
light chop. A chance of showers. A chance of thunderstorms,
mainly in the evening.
.WEDNESDAY...Southwest winds around 5 knots, becoming southeast
10 to 15 knots in the afternoon. Seas around 2 feet. Wave Detail:
Southeast 2 feet at 4 seconds. Intracoastal waters a moderate
chop. A chance of showers. A slight chance of thunderstorms in
the morning, then a chance of thunderstorms in the afternoon.
.WEDNESDAY NIGHT...South winds 10 to 15 knots, becoming southwest
5 to 10 knots after midnight. Seas 2 to 3 feet. Intracoastal
waters a moderate chop. A slight chance of showers and
thunderstorms in the evening.
.THURSDAY THROUGH FRIDAY...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.

$$

AMZ470-472-474-241530-
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-
Waters from St. Augustine to Flagler Beach FL from 20 to 60 NM-
817 PM EDT Sun Aug 23 2026

.TONIGHT...Southwest winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: South 2 feet at 4 seconds.
.MONDAY...Southwest winds 10 to 15 knots, becoming south in the
afternoon. Seas 2 to 3 feet. Wave Detail: Southwest 2 feet at
4 seconds and east 2 feet at 8 seconds.
.MONDAY NIGHT...South winds 10 to 15 knots, becoming southwest
5 to 10 knots after midnight. Seas 2 to 3 feet. Wave Detail:
South 2 feet at 4 seconds and east 2 feet at 9 seconds. A slight
chance of showers and thunderstorms in the evening.
.TUESDAY...Southwest winds 5 to 10 knots, becoming south in the
afternoon. Seas around 2 feet. Wave Detail: South 2 feet at
4 seconds. A chance of showers and thunderstorms in the
afternoon.
.TUESDAY NIGHT AND WEDNESDAY...South winds 10 to 15 knots. Seas
around 2 feet. Wave Detail: Southeast 2 feet at 4 seconds. A
chance of showers and thunderstorms.
.WEDNESDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet.
Wave Detail: South 2 feet at 4 seconds. A chance of showers and
thunderstorms.
.THURSDAY THROUGH FRIDAY...South winds 10 to 15 knots. Seas 2 to
3 feet. A chance of showers and thunderstorms.

Winds and seas higher in and near thunderstorms.

$$