Coastal Waters Forecast
Issued by NWS Jacksonville, FL

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963
FZUS52 KJAX 260405
CWFJAX

Coastal Waters Forecast for Northeast Florida/Southeast Georgia
National Weather Service Jacksonville FL
1205 AM EDT Sun Jul 26 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.

AMZ400-261915-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
1205 AM EDT Sun Jul 26 2026

.SYNOPSIS...

A stationary frontal boundary extending from the Carolina coast
westward across the deep south will drift south towards the Georgia
waters Today, pushing the axis of Atlantic high pressure southward.
This change in the weather pattern will create a prevailing offshore
wind flow through early next week, with scattered to numerous
afternoon and evening thunderstorms expected across our local waters
each day. A few stronger storms will be possible during the late
afternoon hours, with briefly strong wind gusts, frequent lightning
strikes and torrential downpours. Another front will approach the
waters by the middle of next week with offshore southwest winds
increasing to near advisory levels.


.GULF STREAM...

The approximate location of the west wall of the Gulf Stream as of
Jul 25, 2026 at 0000 UTC...

 46 nautical miles east of Flagler Beach.
 49 nautical miles east of Saint Augustine Beach.
 60 nautical miles east southeast of Jacksonville Beach.
 68 nautical miles east southeast of St Simons Island.

This data derived from NCEP Global RTOFS model.


$$

AMZ450-452-454-261915-
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-
1205 AM EDT Sun Jul 26 2026

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

Winds and waves higher in and near thunderstorms.

$$

AMZ470-472-474-261915-
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-
1205 AM EDT Sun Jul 26 2026

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

Winds and seas higher in and near thunderstorms.

$$