866
FZUS52 KJAX 250626
CWFJAX

Coastal Waters Forecast for Northeast Florida/Southeast Georgia
National Weather Service Jacksonville FL
225 AM EDT Tue Aug 25 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.

AMZ400-252100-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
225 AM EDT Tue Aug 25 2026

.SYNOPSIS...

A stalled frontal boundary positioned just north of the Georgia
waters will remain in place during the next several days. Afternoon
and evening thunderstorms developing over coastal locations will
push across our local waters each late afternoon and evening, with
strong to isolated severe storms possible through midweek. Offshore
winds will otherwise prevail during the overnight and morning hours,
with the Atlantic sea breeze shifting winds to onshore each
afternoon across the near shore waters. Southerly winds will then
surge each evening, with speeds briefly approaching Caution speeds
around sunset outside of ongoing thunderstorm activity. A transition
to an onshore flow pattern is expected to develop over the weekend
as stronger high pressure builds to the north.


.GULF STREAM...

The approximate location of the west wall of the Gulf Stream as of
Aug 24, 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.
 71 nautical miles east southeast of St Simons Island.

This data derived from NCEP Global RTOFS model.


$$

AMZ450-452-454-252100-
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-
225 AM EDT Tue Aug 25 2026

.REST OF TONIGHT...Southwest winds 5 to 10 knots. Seas around
2 feet. Wave Detail: Southeast 2 feet at 5 seconds. Intracoastal
waters light chop.
.TUESDAY...Southwest winds 5 to 10 knots, becoming south in the
afternoon. Seas around 2 feet. Wave Detail: Southeast 2 feet at
5 seconds. Intracoastal waters light chop. A chance of showers
and thunderstorms in the afternoon.
.TUESDAY NIGHT...Southwest winds 5 to 10 knots. Seas around
2 feet. Wave Detail: Southeast 2 feet at 5 seconds. Intracoastal
waters light chop. A chance of showers and thunderstorms, mainly
in the evening.
.WEDNESDAY...South winds around 5 knots, becoming southeast 10 to
15 knots in the afternoon. Seas around 2 feet. Wave Detail:
Southeast 2 feet at 4 seconds. Intracoastal waters a moderate
chop. A slight chance of showers and thunderstorms in the
morning, then a chance of showers and thunderstorms in the
afternoon.
.WEDNESDAY NIGHT...South winds 10 to 15 knots, becoming southwest
5 to 10 knots after midnight. Seas 2 to 3 feet. Wave Detail:
Southeast 2 feet at 4 seconds. Intracoastal waters a moderate
chop. A chance of showers with a slight chance of thunderstorms
in the evening, then a slight chance of showers after midnight.
.THURSDAY AND THURSDAY NIGHT...Southwest winds 10 to 15 knots.
Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 4 seconds.
Intracoastal waters a moderate chop. A chance of showers and
thunderstorms.
.FRIDAY THROUGH SATURDAY...Southeast 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.

$$

AMZ470-472-474-252100-
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-
225 AM EDT Tue Aug 25 2026

.REST OF TONIGHT...Southwest winds 5 to 10 knots. Seas 2 to
3 feet. Wave Detail: South 2 feet at 5 seconds.
.TUESDAY...Southwest winds 5 to 10 knots, becoming south in the
afternoon. Seas around 2 feet. Wave Detail: South 2 feet at
5 seconds. A slight chance of showers and thunderstorms in the
afternoon.
.TUESDAY NIGHT...Southwest winds 5 to 10 knots. Seas around
2 feet. Wave Detail: South 2 feet at 4 seconds. A chance of
showers and thunderstorms.
.WEDNESDAY...Southwest winds 5 to 10 knots, becoming south 10 to
15 knots in the afternoon. Seas around 2 feet. Wave Detail: South
2 feet at 4 seconds. A chance of showers and thunderstorms,
mainly in the morning.
.WEDNESDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet.
Wave Detail: South 2 feet at 4 seconds. A chance of showers. A
chance of thunderstorms, mainly in the evening.
.THURSDAY...Southwest winds 5 to 10 knots, becoming south 10 to
15 knots in the afternoon. Seas 2 to 3 feet. Wave Detail: South
2 feet at 4 seconds. A slight chance of showers and
thunderstorms.
.THURSDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet. A
chance of showers and thunderstorms.
.FRIDAY THROUGH SATURDAY...Southeast winds 5 to 10 knots. Seas
2 to 3 feet. A chance of showers and thunderstorms.

Winds and seas higher in and near thunderstorms.

$$