620
FZUS52 KJAX 281711
CWFJAX

Coastal Waters Forecast for Northeast Florida/Southeast Georgia
National Weather Service Jacksonville FL
111 PM EDT Thu May 28 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.

AMZ400-290800-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
111 PM EDT Thu May 28 2026

.SYNOPSIS...

High pressure will continue to move away to the southeast Today, as
high pressure builds to the northwest.

A frontal system will be near or over the area from Friday through
the middle of next week. Due to the proximity of this front, rounds
of showers and thunderstorms are expected.


.GULF STREAM...

The approximate location of the west wall of the Gulf Stream as of
May 28, 2026 at 0000 UTC...

 50 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.


$$

AMZ450-452-454-290800-
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-
111 PM EDT Thu May 28 2026

.REST OF TODAY...South winds 5 to 10 knots. Seas around 3 feet.
Wave Detail: Southeast 3 feet at 9 seconds. Intracoastal waters
light chop. A slight chance of showers and thunderstorms late
this morning, then showers and thunderstorms likely this
afternoon.
.TONIGHT...Southwest winds around 5 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 3 feet at 8 seconds. Intracoastal waters
smooth. A chance of showers. A chance of thunderstorms, mainly in
the evening.
.FRIDAY...Northwest winds around 5 knots, becoming east in the
afternoon. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at
8 seconds. Intracoastal waters smooth. A chance of showers. A
slight chance of thunderstorms in the morning, then a chance of
thunderstorms in the afternoon.
.FRIDAY NIGHT...Southwest winds 5 to 10 knots. Seas around
2 feet. Wave Detail: East 2 feet at 8 seconds. Intracoastal
waters light chop. A chance of showers. A chance of
thunderstorms, mainly in the evening.
.SATURDAY AND SATURDAY NIGHT...West winds 10 to 15 knots. Seas
2 to 3 feet. Wave Detail: West 2 feet at 3 seconds and southeast
2 feet at 8 seconds. Intracoastal waters a moderate chop. Showers
with a chance of thunderstorms.
.SUNDAY...Northeast winds 10 to 15 knots, becoming south. Seas
2 to 4 feet, occasionally to 5 feet. Wave Detail: Northeast
4 feet at 8 seconds and west 2 feet at 3 seconds. Intracoastal
waters a moderate chop. A slight chance of thunderstorms in the
morning. Showers. A chance of thunderstorms through the night,
then a chance of showers with a slight chance of thunderstorms
after midnight.
.MONDAY...Northwest winds 10 to 15 knots, diminishing to 5 to
10 knots. Seas 3 to 5 feet, occasionally to 6 feet. Intracoastal
waters a moderate chop. Showers likely with a chance of
thunderstorms, then a chance of showers after midnight.

Winds and waves higher in and near thunderstorms.

$$

AMZ470-472-474-290800-
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-
111 PM EDT Thu May 28 2026

.REST OF TODAY...South winds 5 to 10 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Wave Detail: Southeast 4 feet at
9 seconds. A slight chance of showers and thunderstorms late this
morning, then a chance of showers and thunderstorms this
afternoon.
.TONIGHT...Southwest winds 5 to 10 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Wave Detail: Southeast 3 feet at
8 seconds. A chance of showers and thunderstorms.
.FRIDAY...Northwest winds 5 to 10 knots, becoming east in the
afternoon. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at
8 seconds. A chance of showers and thunderstorms.
.FRIDAY NIGHT...Southwest winds 5 to 10 knots. Seas 2 to 3 feet.
Wave Detail: Southeast 2 feet at 8 seconds. A chance of showers.
A chance of thunderstorms, mainly in the evening.
.SATURDAY AND SATURDAY NIGHT...West winds 10 to 15 knots. Seas
2 to 3 feet. Wave Detail: West 2 feet at 3 seconds and southeast
2 feet at 8 seconds. Showers with a chance of thunderstorms.
.SUNDAY THROUGH MONDAY...Northwest winds 10 to 15 knots. Seas
3 to 5 feet, occasionally to 6 feet. Wave Detail: East 5 feet at
10 seconds and west 3 feet at 4 seconds. Showers likely with a
chance of thunderstorms.

Winds and seas higher in and near thunderstorms.

$$