413
FZUS52 KJAX 221124
CWFJAX

Coastal Waters Forecast for Northeast Florida/Southeast Georgia
National Weather Service Jacksonville FL
724 AM EDT Sat Aug 22 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.

AMZ400-230230-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
724 AM EDT Sat Aug 22 2026

.SYNOPSIS...

A frontal zone will extend across the Carolinas and into Georgia
with a high pressure ridge to the southeast. Rounds of mainly
afternoon and evening showers and thunderstorms can be expected each
day. Brief southerly wind surges are expected during the late
afternoon and evening hours as the Atlantic sea breeze shifts
onshore. But, winds are expected to remain below Small Craft
Exercise Caution levels. The cold front will push into the local
waters Sunday night into Monday and then lift back northward as a
warm front by mid-week.


.GULF STREAM...

The approximate location of the west wall of the Gulf Stream as of
Aug 21, 2026 at 0000 UTC...

 54 nautical miles east of Flagler Beach.
 58 nautical miles east of Saint Augustine Beach.
 70 nautical miles east southeast of Jacksonville Beach.
 81 nautical miles east southeast of St Simons Island.

This data derived from NCEP Global RTOFS model.


$$

AMZ450-452-454-230230-
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-
724 AM EDT Sat Aug 22 2026

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

$$

AMZ470-472-474-230230-
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-
724 AM EDT Sat Aug 22 2026

.TODAY...Southwest winds 10 to 15 knots, becoming south this
afternoon. Seas 2 to 3 feet. Wave Detail: Southwest 3 feet at
4 seconds. A slight chance of showers and thunderstorms this
afternoon.
.TONIGHT...Southwest winds 10 to 15 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Wave Detail: South 3 feet at 5 seconds. A
slight chance of thunderstorms. A chance of showers, mainly in
the evening.
.SUNDAY...Southwest winds 10 to 15 knots, becoming south in the
afternoon. Seas 2 to 3 feet. Wave Detail: Southwest 3 feet at
5 seconds. A slight chance of showers and thunderstorms.
.SUNDAY NIGHT...South winds 15 to 20 knots, becoming southwest
10 to 15 knots after midnight. Seas 3 to 4 feet, occasionally to
5 feet. Wave Detail: South 3 feet at 5 seconds. A slight chance
of showers and thunderstorms in the evening.
.MONDAY...Southwest winds 10 to 15 knots, becoming south in the
afternoon. Seas 2 to 3 feet. Wave Detail: South 3 feet at
5 seconds.
.MONDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet.
Wave Detail: South 2 feet at 5 seconds and east 2 feet at
10 seconds. A slight chance of showers and thunderstorms in the
evening.
.TUESDAY THROUGH WEDNESDAY...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.

$$