253
FZUS52 KJAX 281321
CWFJAX

Coastal Waters Forecast for Northeast Florida/Southeast Georgia
National Weather Service Jacksonville FL
921 AM EDT Wed Oct 28 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.

AMZ400-290430-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
921 AM EDT Wed Oct 28 2026

.SYNOPSIS...

Strong high pressure situated over New England will continue to
wedge down the southeastern seaboard as it slowly shifts offshore
this afternoon. Meanwhile, weak low pressure situated near southeast
Florida will meander through Thursday before dissipating on Thursday
night and Friday. These two features will create gusty northeasterly
winds through Friday, keeping Small Craft Advisory conditions in
place throughout our local waters. Coastal troughing situated over
our near shore waters will remain in place through Saturday, with
this feature generating scattered to numerous showers this afternoon
for the waters from around St. Augustine southward, with this
activity then overspreading most of our local waters tonight.
Periods of isolated to widely scattered showers will then be
possible from Thursday through Sunday morning. Another strong high
pressure center building southeastward from New England and the Mid-
Atlantic states this weekend will result in breezy easterly winds
across our local waters, with another round of Small Craft Advisory
conditions possible as seas build. A disturbance aloft moving across
our area on Sunday and Monday may generate numerous showers and a
few embedded thunderstorms.


.GULF STREAM...

The approximate location of the west wall of the Gulf Stream as of
Oct 27, 2026 at 0000 UTC...

 58 nautical miles east of Flagler Beach.
 62 nautical miles east of Saint Augustine Beach.
 74 nautical miles east southeast of Jacksonville Beach.
 80 nautical miles east southeast of St Simons Island.

This data derived from NCEP Global RTOFS model.


$$

AMZ450-452-454-290430-
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-
921 AM EDT Wed Oct 28 2026

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE THURSDAY NIGHT...

.REST OF TODAY...Northeast winds 20 to 25 knots. Seas 7 to
10 feet, occasionally to 13 feet. Wave Detail: East 10 feet at
10 seconds. Intracoastal waters rough. A chance of showers.
.TONIGHT...Northeast winds 20 to 25 knots. Seas 7 to 10 feet,
occasionally to 13 feet. Wave Detail: Northeast 9 feet at
10 seconds. Intracoastal waters rough. A chance of showers in the
evening, then showers likely after midnight.
.THURSDAY...Northeast winds 20 to 25 knots. Seas 6 to 8 feet,
occasionally to 10 feet. Wave Detail: Northeast 8 feet at
10 seconds. Intracoastal waters rough. A chance of showers.
.THURSDAY NIGHT...Northeast winds 15 to 20 knots. Seas 5 to
8 feet, occasionally to 10 feet. Wave Detail: Northeast 7 feet at
9 seconds. Intracoastal waters choppy. A chance of showers in the
evening.
.FRIDAY...Northeast winds 15 to 20 knots. Seas 5 to 6 feet,
occasionally to 8 feet. Wave Detail: Northeast 6 feet at
8 seconds. Intracoastal waters choppy. A slight chance of showers
in the morning, then a chance of showers in the afternoon.
.FRIDAY NIGHT...Northeast winds 10 to 15 knots. Seas 4 to 5 feet,
occasionally to 6 feet. Wave Detail: East 5 feet at 8 seconds.
Intracoastal waters a moderate chop.
.SATURDAY...East winds 10 to 15 knots, increasing to 15 to
20 knots. Seas 4 to 6 feet, occasionally to 8 feet. Intracoastal
waters choppy. A slight chance of showers. A slight chance of
thunderstorms, then a chance of showers after midnight.
.SUNDAY...East winds 15 to 20 knots, diminishing to 10 to
15 knots. Seas 5 to 7 feet, occasionally to 9 feet. Intracoastal
waters choppy. A chance of showers with a slight chance of
thunderstorms in the morning, then showers likely in the
afternoon. A chance of thunderstorms through the night. A chance
of showers through the night. A slight chance of thunderstorms
after midnight.

Winds and waves higher in and near thunderstorms.

$$

AMZ470-472-474-290430-
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-
921 AM EDT Wed Oct 28 2026

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE THURSDAY NIGHT...

.REST OF TODAY...Northeast winds 20 to 25 knots with gusts up to
33 knots. Seas 9 to 12 feet, occasionally to 15 feet. Wave
Detail:
East 11 feet at 10 seconds. A chance of showers.
.TONIGHT...Northeast winds 20 to 25 knots. Gusts up to 35 knots
in the evening. Seas 8 to 11 feet, occasionally to 14 feet. Wave
Detail: East 11 feet at 10 seconds. A chance of showers in the
evening, then showers likely after midnight.
.THURSDAY...Northeast winds around 20 knots. Seas 8 to 10 feet,
occasionally to 13 feet. Wave Detail: Northeast 9 feet at
10 seconds. A chance of showers. A slight chance of thunderstorms
in the afternoon.
.THURSDAY NIGHT...Northeast winds 15 to 20 knots. Seas 6 to
8 feet, occasionally to 10 feet. Wave Detail: Northeast 8 feet at
9 seconds. A chance of showers, mainly in the evening.
.FRIDAY...Northeast winds 15 to 20 knots. Seas 6 to 7 feet,
occasionally to 9 feet. Wave Detail: Northeast 7 feet at
8 seconds. A chance of showers.
.FRIDAY NIGHT...Northeast winds 10 to 15 knots. Seas 5 to 6 feet,
occasionally to 8 feet. Wave Detail: East 6 feet at 8 seconds. A
slight chance of thunderstorms in the evening. A slight chance of
showers.
.SATURDAY...East winds 15 to 20 knots. Seas 5 to 8 feet,
occasionally to 10 feet. A slight chance of thunderstorms.
.SUNDAY...East winds 15 to 20 knots. Seas 6 to 8 feet,
occasionally to 10 feet. A slight chance of thunderstorms through
the day. Showers likely. A chance of thunderstorms in the
evening, then a chance of showers with a slight chance of
thunderstorms after midnight.

Winds and seas higher in and near thunderstorms.

$$