Coastal Waters Forecast
Issued by NWS Jacksonville, FL

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FZUS52 KJAX 231257
CWFJAX

Coastal Waters Forecast for Northeast Florida/Southeast Georgia
National Weather Service Jacksonville FL
857 AM EDT Fri May 23 2025

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.

AMZ400-232115-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
857 AM EDT Fri May 23 2025

.SYNOPSIS...

High pressure will build in from the northwest through the
weekend resulting in a weak flow pattern and afternoon sea breeze
development each day. Moist southerly winds will develop next
week and slowly increase daily thunderstorm chances. Additionally,
successive weak troughs of low pressure, emerging from the Gulf,
will increase storm chances and wind speeds as they pass,
especially on Tuesday.

.GULF STREAM...

The approximate location of the west wall of the Gulf Stream as of
May 22, 2025 at 1200 UTC...

 50 nautical miles east of Flagler Beach.
 59 nautical miles east of Saint Augustine Beach.
 75 nautical miles east of Jacksonville Beach.
 87 nautical miles east southeast of St Simons Island.

This data courtesy of the Naval Oceanographic Office.

$$

AMZ450-452-454-232115-
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-
857 AM EDT Fri May 23 2025

.REST OF TODAY...Northwest winds 5 to 10 knots, becoming east
10 to 15 knots this afternoon. Seas around 2 feet. Wave Detail:
Northwest 2 feet at 3 seconds. Intracoastal waters a moderate
chop.
.TONIGHT...South winds 10 to 15 knots, becoming southwest after
midnight. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at
4 seconds and east 2 feet at 9 seconds. Intracoastal waters a
moderate chop.
.SATURDAY...East winds 5 to 10 knots, increasing to 10 to
15 knots in the afternoon. Seas 2 to 3 feet. Wave Detail:
Southeast 2 feet at 4 seconds and east 2 feet at 9 seconds.
Intracoastal waters a moderate chop.
.SATURDAY 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 4 seconds and east 2 feet at 9 seconds.
Intracoastal waters a moderate chop.
.SUNDAY...South 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 4 seconds and east 2 feet at 8 seconds.
Intracoastal waters a moderate chop. A slight chance of showers
and thunderstorms in the afternoon.
.SUNDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet.
Wave Detail: Southeast 3 feet at 4 seconds and east 2 feet at
9 seconds. Intracoastal waters a moderate chop. A slight chance
of showers and thunderstorms in the evening.
.MONDAY THROUGH TUESDAY...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.

$$

AMZ470-472-474-232115-
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-
857 AM EDT Fri May 23 2025

.REST OF TODAY...Northwest winds 5 to 10 knots, becoming east
this afternoon. Seas 2 to 3 feet. Wave Detail: West 2 feet at
4 seconds and east 2 feet at 9 seconds.
.TONIGHT...South winds 10 to 15 knots, becoming southwest after
midnight. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at
3 seconds and east 2 feet at 9 seconds.
.SATURDAY...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 9 seconds.
.SATURDAY NIGHT...Southeast winds 10 to 15 knots. Seas around
3 feet. Wave Detail: Southeast 2 feet at 4 seconds and east
2 feet at 9 seconds. A slight chance of showers and
thunderstorms.
.SUNDAY...South winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 2 feet at 4 seconds and northeast 2 feet at
8 seconds. A slight chance of showers. A slight chance of
thunderstorms in the afternoon.
.SUNDAY NIGHT...South winds 10 to 15 knots. Seas around 3 feet.
Wave Detail: South 3 feet at 4 seconds and northeast 2 feet at
9 seconds. A chance of showers with a slight chance of
thunderstorms.
.MONDAY...South winds 5 to 10 knots. Seas 2 to 3 feet. A chance
of showers.
.TUESDAY...South winds 10 to 15 knots. Seas 2 to 3 feet. A slight
chance of thunderstorms in the morning. A chance of showers
through the day. A chance of thunderstorms through the night.
Showers likely in the evening, then a chance of showers with a
slight chance of thunderstorms after midnight.

Winds and seas higher in and near thunderstorms.

$$