848
FZUS52 KJAX 310129
CWFJAX

Coastal Waters Forecast for Northeast Florida/Southeast Georgia
National Weather Service Jacksonville FL
929 PM 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.

AMZ400-311630-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
929 PM EDT Sat May 30 2026

.SYNOPSIS...

A stationary frontal boundary situated over the Georgia waters will
dissipate tonight with scattered showers and thunderstorms through
midnight. Another frontal boundary will push into the southeastern
states on Sunday morning as high pressure builds southward from the
Great Lakes and Mid-Atlantic states. Additional rounds of showers
and thunderstorms are forecast from Sunday through Tuesday evening
as this front stalls over our area before a stronger cold front
pushes southward across our local waters on Tuesday night.
Northeasterly winds will surge in the wake of this frontal passage
on Tuesday night as high pressure building over the Ohio and
Tennessee Valleys wedges down the southeastern seaboard, creating
Small Craft Advisory conditions from late Tuesday night through at
least Wednesday night throughout our local waters. Breezy onshore
winds and elevated seas are expected through Thursday night as high
pressure gradually weakens over the southeastern states.


.GULF STREAM...

The approximate location of the west wall of the Gulf Stream as of
May 30, 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.
 71 nautical miles east southeast of St Simons Island.

This data derived from NCEP Global RTOFS model.


$$

AMZ450-452-454-311630-
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-
929 PM EDT Sat May 30 2026

.REST OF TONIGHT...West winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: Southeast 2 feet at 7 seconds. Intracoastal waters
light chop. A slight chance of thunderstorms. A chance of
showers, mainly this evening.
.SUNDAY...North winds 5 to 10 knots, becoming east in the
afternoon. Seas around 2 feet. Wave Detail: East 2 feet at
7 seconds. Intracoastal waters light chop. 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...South winds 5 to 10 knots, becoming southwest
10 to 15 knots after midnight. Seas 2 to 3 feet. Wave Detail:
Southwest 2 feet at 3 seconds and east 2 feet at 7 seconds.
Intracoastal waters a moderate chop. A chance of showers. A
chance of thunderstorms, mainly in the evening.
.MONDAY...West winds 10 to 15 knots, becoming northwest 5 to
10 knots in the afternoon. Seas 2 to 3 feet. Wave Detail: East
3 feet at 8 seconds and west 2 feet at 3 seconds. Intracoastal
waters a moderate chop. Showers likely. A slight chance of
thunderstorms in the morning, then a chance of thunderstorms in
the afternoon.
.MONDAY NIGHT...West winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: Northeast 3 feet at 10 seconds. Intracoastal waters light
chop. A slight chance of showers and thunderstorms in the
evening.
.TUESDAY...Northwest winds 5 to 10 knots, becoming northeast
10 to 15 knots in the afternoon. Seas 2 to 3 feet. Wave Detail:
Northeast 3 feet at 11 seconds. Intracoastal waters a moderate
chop. A chance of showers and thunderstorms in the afternoon.
.TUESDAY NIGHT...Northeast winds 15 to 20 knots, increasing to
20 to 25 knots after midnight. Seas 4 to 6 feet, occasionally to
8 feet. Intracoastal waters rough. Showers likely with a chance
of thunderstorms in the evening, then a chance of showers after
midnight.
.WEDNESDAY...Northeast winds 20 to 25 knots. Seas 5 to 8 feet,
occasionally to 10 feet. Intracoastal waters rough. A slight
chance of thunderstorms through the day. A slight chance of
showers.
.THURSDAY...Northeast winds 15 to 20 knots, becoming southeast
10 to 15 knots. Seas 3 to 5 feet, occasionally to 6 feet.
Intracoastal waters choppy. A slight chance of showers in the
morning.

Winds and waves higher in and near thunderstorms.

$$

AMZ470-472-474-311630-
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-
929 PM EDT Sat May 30 2026

.REST OF TONIGHT...West winds 5 to 10 knots. Seas 2 to 3 feet.
Wave Detail: West 2 feet at 3 seconds and southeast 2 feet at
7 seconds. A chance of showers with a slight chance of
thunderstorms.
.SUNDAY...North winds 5 to 10 knots, becoming east in the
afternoon. Seas 2 to 3 feet. Wave Detail: West 2 feet at
3 seconds and east 2 feet at 7 seconds. A chance of showers. A
slight chance of thunderstorms in the morning, then a chance of
thunderstorms in the afternoon.
.SUNDAY NIGHT...South winds 5 to 10 knots, becoming southwest
10 to 15 knots after midnight. Seas 2 to 4 feet, occasionally to
5 feet. Wave Detail: Southwest 3 feet at 4 seconds and east
3 feet at 8 seconds. A chance of thunderstorms. Showers likely,
mainly in the evening.
.MONDAY...West winds 15 to 20 knots, diminishing to 10 to
15 knots in the afternoon. Seas 3 to 5 feet, occasionally to
6 feet. Wave Detail: West 3 feet at 4 seconds and northeast
3 feet at 8 seconds. Showers likely with a slight chance of
thunderstorms in the morning, then a chance of showers and
thunderstorms in the afternoon.
.MONDAY NIGHT...West winds 5 to 10 knots, increasing to 10 to
15 knots after midnight. Seas 3 to 4 feet, occasionally to
5 feet. Wave Detail: Northeast 3 feet at 11 seconds and west
2 feet at 4 seconds. A slight chance of showers and
thunderstorms.
.TUESDAY...Northwest winds around 10 knots, becoming north in the
afternoon. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail:
Northeast 4 feet at 11 seconds and west 2 feet at 4 seconds. A
chance of showers and thunderstorms in the afternoon.
.TUESDAY NIGHT...Northeast winds 15 to 20 knots, increasing to
20 to 25 knots after midnight. Seas 4 to 6 feet, occasionally to
8 feet. Showers likely with a chance of thunderstorms in the
evening, then a chance of showers with a slight chance of
thunderstorms after midnight.
.WEDNESDAY...Northeast winds 20 to 25 knots, diminishing to 15 to
20 knots. Seas 5 to 8 feet, occasionally to 10 feet. A slight
chance of showers in the morning. A slight chance of
thunderstorms through the day. A chance of showers in the
afternoon. A slight chance of showers through the night.
.THURSDAY...Northeast winds 10 to 15 knots, becoming southeast.
Seas 4 to 6 feet, occasionally to 8 feet. A chance of showers in
the morning. A slight chance of thunderstorms in the afternoon. A
slight chance of showers through the night.

Winds and seas higher in and near thunderstorms.

$$