185
FZUS52 KJAX 291216
CWFJAX

Coastal Waters Forecast for Northeast Florida/Southeast Georgia
National Weather Service Jacksonville FL
816 AM EDT Wed Jul 29 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.

AMZ400-300330-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
816 AM EDT Wed Jul 29 2026

.SYNOPSIS...

Active weather pattern develops today with a surge of southwest
winds to Small Craft Exercise Caution levels which will continue
through tonight. A frontal boundary will then sink into the Deep
South late this week, with this feature becoming stationary during
the weekend. Strong to severe thunderstorms will be possible well in
advance of this front this afternoon and evening, with stronger
storms potentially producing damaging wind gusts, waterspouts,
frequent lightning strikes, and torrential downpours. Scattered to
numerous thunderstorms will continue across the northeast Florida
waters on Thursday and Friday, with less coverage currently forecast
for the Georgia waters. Waves of showers and thunderstorms will then
overspread all of our local waters during the upcoming weekend.
Outside of expected thunderstorm activity, southwesterly winds will
prevail with Caution conditions likely through the upcoming weekend.


.GULF STREAM...

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

This data derived from NCEP Global RTOFS model.


$$

AMZ450-452-454-300330-
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-
816 AM EDT Wed Jul 29 2026

...SMALL CRAFT EXERCISE CAUTION IN EFFECT THROUGH THURSDAY
MORNING...

.REST OF TODAY...Southwest winds 10 to 15 knots. Seas 2 to
3 feet. Wave Detail: Southwest 3 feet at 4 seconds. Intracoastal
waters a moderate chop. A chance of showers and thunderstorms
this afternoon.
.TONIGHT...West winds 15 to 20 knots. Seas 2 to 3 feet. Wave
Detail: Southwest 3 feet at 4 seconds. Intracoastal waters
choppy. A chance of showers and thunderstorms.
.THURSDAY...Southwest winds 10 to 15 knots. Seas 2 to 3 feet.
Wave Detail: West 3 feet at 4 seconds. Intracoastal waters a
moderate chop. A chance of showers. A slight chance of
thunderstorms in the morning, then a chance of thunderstorms in
the afternoon.
.THURSDAY NIGHT...Southwest winds 10 to 15 knots. Seas 2 to
3 feet. Wave Detail: Southwest 2 feet at 4 seconds. Intracoastal
waters a moderate chop. A chance of showers and thunderstorms,
mainly in the evening.
.FRIDAY...Southwest winds 5 to 10 knots, becoming south 10 to
15 knots in the afternoon. Seas around 2 feet. Wave Detail:
Southwest 2 feet at 4 seconds. Intracoastal waters a moderate
chop. Showers likely with a slight chance of thunderstorms in the
morning, then a chance of showers and thunderstorms in the
afternoon.
.FRIDAY NIGHT...Southwest winds 10 to 15 knots, diminishing to
5 to 10 knots after midnight. Seas around 2 feet. Wave Detail:
South 2 feet at 4 seconds. Intracoastal waters a moderate chop. A
chance of showers and thunderstorms in the evening.
.SATURDAY THROUGH SUNDAY...Southwest winds 15 to 20 knots. Seas
2 to 4 feet, occasionally to 5 feet. Intracoastal waters choppy.
Showers and thunderstorms likely.

Winds and waves higher in and near thunderstorms.

$$

AMZ470-472-474-300330-
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-
816 AM EDT Wed Jul 29 2026

...SMALL CRAFT EXERCISE CAUTION IN EFFECT THROUGH THURSDAY
MORNING...

.REST OF TODAY...Southwest winds 15 to 20 knots. Seas 3 to
4 feet, occasionally to 5 feet. Wave Detail: Southwest 4 feet at
5 seconds and east 2 feet at 8 seconds. A slight chance of
showers and thunderstorms this afternoon.
.TONIGHT...West winds 15 to 20 knots. Seas 3 to 5 feet,
occasionally to 6 feet. Wave Detail: Southwest 4 feet at
5 seconds. A chance of showers and thunderstorms.
.THURSDAY...Southwest winds 10 to 15 knots. Seas 2 to 4 feet,
occasionally to 5 feet. Wave Detail: West 4 feet at 5 seconds. A
slight chance of showers and thunderstorms in the morning, then a
chance of showers and thunderstorms in the afternoon.
.THURSDAY NIGHT...Southwest winds 10 to 15 knots. Seas 2 to
3 feet. Wave Detail: Southwest 3 feet at 5 seconds. A chance of
showers. A chance of thunderstorms, mainly in the evening.
.FRIDAY...Southwest winds 5 to 10 knots, becoming south in the
afternoon. Seas 2 to 3 feet. Wave Detail: Southwest 2 feet at
4 seconds. Showers likely with a slight chance of thunderstorms
in the morning, then a chance of showers and thunderstorms in the
afternoon.
.FRIDAY 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.
.SATURDAY...Southwest winds 10 to 15 knots. Seas 2 to 4 feet,
occasionally to 5 feet. A slight chance of showers and
thunderstorms in the morning, then a chance of showers in the
afternoon. A chance of thunderstorms. Showers likely in the
evening, then a chance of showers after midnight.
.SUNDAY...Southwest winds 15 to 20 knots. Seas 3 to 5 feet,
occasionally to 6 feet. Showers likely through the day. A chance
of thunderstorms. A chance of showers through the night. A slight
chance of thunderstorms after midnight.

Winds and seas higher in and near thunderstorms.

$$