854
FZUS52 KJAX 251826
CWFJAX

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

AMZ400-260900-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
226 PM 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.
Thunderstorms developing over coastal locations will push across our
local waters through the upcoming weekend, mainly during the late
afternoon and evening hours, with strong to isolated severe storms
possible. 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. Stronger high pressure building over New England this
weekend will shift prevailing winds to onshore across our local
waters.


.GULF STREAM...

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

This data derived from NCEP Global RTOFS model.


$$

AMZ450-452-454-260900-
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-
226 PM EDT Tue Aug 25 2026

.REST OF TODAY...Southeast winds 10 to 15 knots. Seas around
2 feet. Wave Detail: Southeast 2 feet at 5 seconds. Intracoastal
waters a moderate chop. A chance of showers and thunderstorms.
.TONIGHT...South winds 10 to 15 knots, diminishing to 5 to
10 knots after midnight. Seas around 2 feet. Wave Detail:
Southeast 2 feet at 4 seconds. Intracoastal waters a moderate
chop. A chance of showers and thunderstorms in the evening.
.WEDNESDAY...South winds around 5 knots, becoming southeast 10 to
15 knots in the afternoon. Seas 2 to 3 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 3 feet at 4 seconds. Intracoastal waters a moderate
chop. A slight chance of showers and thunderstorms in the
evening.
.THURSDAY...South winds 5 to 10 knots, becoming southeast 10 to
15 knots in the afternoon. Seas 2 to 3 feet. Wave Detail:
Southeast 3 feet at 5 seconds. Intracoastal waters a moderate
chop. A chance of showers and thunderstorms in the afternoon.
.THURSDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet.
Wave Detail: Southeast 3 feet at 5 seconds. Intracoastal waters a
moderate chop. A chance of showers and thunderstorms in the
evening.
.FRIDAY...South winds 10 to 15 knots. Seas 2 to 3 feet.
Intracoastal waters a moderate chop. Showers likely with a chance
of thunderstorms through the night. A chance of showers with a
slight chance of thunderstorms after midnight.
.SATURDAY...Southeast winds 5 to 10 knots. Seas around 2 feet.
Intracoastal waters light chop. A chance of showers.

Winds and waves higher in and near thunderstorms.

$$

AMZ470-472-474-260900-
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-
226 PM EDT Tue Aug 25 2026

.REST OF TODAY...South winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: South 2 feet at 4 seconds. A chance of showers and
thunderstorms.
.TONIGHT...South winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: South 2 feet at 4 seconds. A chance of showers and
thunderstorms, mainly in the evening.
.WEDNESDAY...South winds 5 to 10 knots, becoming southeast 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 3 feet at 4 seconds. A slight chance of
thunderstorms. A slight chance of showers in the evening, then a
chance of showers after midnight.
.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 around 3 feet.
Wave Detail: South 3 feet at 4 seconds and east 2 feet at
9 seconds. A chance of showers. A chance of thunderstorms, mainly
in the evening.
.FRIDAY...South winds 10 to 15 knots. Seas 2 to 3 feet. A slight
chance of thunderstorms in the morning. A chance of showers
through the day. A chance of thunderstorms. Showers likely in the
evening, then a chance of showers after midnight.
.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.

$$