139
FZUS52 KJAX 300748
CWFJAX

Coastal Waters Forecast for Northeast Florida/Southeast Georgia
National Weather Service Jacksonville FL
348 AM EDT Sat May 30 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.

AMZ400-302300-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
348 AM EDT Sat May 30 2026

.SYNOPSIS...

A nearly stationary frontal boundary will be just north of the local
waters through tonight. This front will push southward into the area
waters on Sunday resulting in breezy northeast to east winds at
times, mainly over the northern waters. This front will become
stationary again and lift north on Sunday night as a weak area low
pressure forms over southeast Georgia waters. A good chance of
thunderstorms remains through this weekend and into Monday evening.
A strong cold front will then sweep southward across our area on
Tuesday, with this boundary likely stalling south of our local
waters by midweek. High pressure will wedge down the southeastern
seaboard in the wake of this frontal passage, creating breezy winds
at times beginning on Tuesday and likely persisting through
Thursday.

.GULF STREAM...

The approximate location of the west wall of the Gulf Stream as of
May 29, 2026 at 0000 UTC...

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

This data derived from NCEP Global RTOFS model.

$$

AMZ450-452-454-302300-
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-
348 AM EDT Sat May 30 2026

.TODAY...Northwest winds 5 to 10 knots, becoming northeast this
afternoon. Seas around 2 feet. Wave Detail: East 2 feet at
8 seconds. Intracoastal waters light chop. A slight chance of
showers and thunderstorms this morning, then showers likely with
a chance of thunderstorms this afternoon.
.TONIGHT...Southwest winds 5 to 10 knots, becoming west after
midnight. Seas around 2 feet. Wave Detail: East 2 feet at
7 seconds and southeast 2 feet at 8 seconds. Intracoastal waters
light chop. Showers likely with a chance of thunderstorms in the
evening, then a chance of showers with a slight chance of
thunderstorms after midnight.
.SUNDAY...North winds 5 to 10 knots, becoming east 10 to 15 knots
in the afternoon. Seas 2 to 3 feet. Wave Detail: East 3 feet at
7 seconds. Intracoastal waters a moderate chop. A chance of
thunderstorms. Showers.
.SUNDAY NIGHT...Southeast winds 10 to 15 knots, becoming
southwest 5 to 10 knots after midnight. Seas 2 to 3 feet. Wave
Detail: East 3 feet at 8 seconds. Intracoastal waters a moderate
chop. Showers likely with a chance of thunderstorms.
.MONDAY...West winds 10 to 15 knots, becoming northwest 5 to
10 knots in the afternoon. Seas 2 to 4 feet, occasionally to
5 feet. Wave Detail: East 3 feet at 8 seconds. Intracoastal
waters a moderate chop. Showers likely with a chance of
thunderstorms.
.MONDAY NIGHT...Northwest winds 5 to 10 knots. Seas 2 to 3 feet.
Wave Detail: East 3 feet at 9 seconds. Intracoastal waters light
chop. A slight chance of showers and thunderstorms in the
evening.
.TUESDAY...North winds 5 to 10 knots, becoming northeast 15 to
20 knots. Seas 2 to 4 feet, occasionally to 5 feet. Intracoastal
waters choppy. A chance of showers in the afternoon. A chance of
thunderstorms through the night. Showers likely in the evening,
then a slight chance of showers after midnight.
.WEDNESDAY...East winds 15 to 20 knots. Seas 4 to 6 feet,
occasionally to 8 feet. Intracoastal waters choppy. A chance of
showers with a slight chance of thunderstorms through the day,
then a slight chance of showers through the night.

Winds and waves higher in and near thunderstorms.

$$

AMZ470-472-474-302300-
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-
348 AM EDT Sat May 30 2026

.TODAY...Northwest winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: Northwest 2 feet at 3 seconds and southeast 2 feet at
8 seconds. A slight chance of showers and thunderstorms this
morning, then a chance of showers and thunderstorms this
afternoon.
.TONIGHT...Southwest winds 5 to 10 knots, becoming west 10 to
15 knots after midnight. Seas 2 to 3 feet. Wave Detail: West
2 feet at 3 seconds and east 2 feet at 7 seconds. A chance of
showers and thunderstorms.
.SUNDAY...North winds 5 to 10 knots, becoming east 10 to 15 knots
in the afternoon. Seas 2 to 3 feet. Wave Detail: East 3 feet at
7 seconds and west 2 feet at 3 seconds. A chance of showers with
a slight chance of thunderstorms in the morning, then showers
likely with a chance of thunderstorms in the afternoon.
.SUNDAY NIGHT...Southeast winds 10 to 15 knots, becoming
southwest after midnight. Seas 3 to 5 feet, occasionally to
6 feet. Wave Detail: East 4 feet at 8 seconds. A chance of
thunderstorms. Showers.
.MONDAY...West winds 10 to 15 knots, becoming northwest 5 to
10 knots in the afternoon. Seas 3 to 5 feet, occasionally to
6 feet. Wave Detail: East 4 feet at 8 seconds and southwest
2 feet at 4 seconds. Showers likely with a chance of
thunderstorms.
.MONDAY NIGHT...Northwest winds 5 to 10 knots, increasing to
10 to 15 knots after midnight. Seas 3 to 4 feet, occasionally to
5 feet. Wave Detail: East 4 feet at 10 seconds and west 2 feet at
3 seconds. A slight chance of showers and thunderstorms.
.TUESDAY...North winds 5 to 10 knots, becoming northeast 15 to
20 knots. Seas 3 to 4 feet, occasionally to 5 feet. Showers
likely with a chance of thunderstorms.
.WEDNESDAY...East winds 15 to 20 knots. Seas 4 to 6 feet,
occasionally to 8 feet. A chance of showers and slight chance of
thunderstorms.

Winds and seas higher in and near thunderstorms.

$$