062
FZUS52 KJAX 191826
CWFJAX

Coastal Waters Forecast for Northeast Florida/Southeast Georgia
National Weather Service Jacksonville FL
225 PM EDT Sat Sep 19 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.

AMZ400-200900-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
225 PM EDT Sat Sep 19 2026

.SYNOPSIS...

Widely scattered showers and possibly a few thunderstorms through
the day with increasing coverage after midnight tonight. Scattered
to numerous showers and thunderstorms are then expected early next
week as a disturbance aloft moves slowly northeastward across our
area. East to northeasterly winds will otherwise prevail through the
early portions of next week, with speeds and seas remaining below
Caution levels. Strong high pressure then wedge down the
southeastern seaboard, resulting in surge of northeasterly winds
that will likely bring Small Craft Advisory conditions beginning
later on Wednesday and continuing through the late portions of next
week.


.GULF STREAM...

The approximate location of the west wall of the Gulf Stream as of
Sep 19, 2026 at 0000 UTC...

 50 nautical miles east of Flagler Beach.
 58 nautical miles east of Saint Augustine Beach.
 70 nautical miles east southeast of Jacksonville Beach.
 76 nautical miles east southeast of St Simons Island.

This data derived from NCEP Global RTOFS model.


$$

AMZ450-452-454-200900-
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 PM EDT Sat Sep 19 2026

.REST OF TODAY...East winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: East 2 feet at 7 seconds. Intracoastal waters light
chop.
.TONIGHT...East winds around 5 knots. Seas around 2 feet. Wave
Detail: East 2 feet at 7 seconds. Intracoastal waters smooth. A
slight chance of thunderstorms. A slight chance of showers in the
evening, then a chance of showers after midnight.
.SUNDAY...Northeast winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: East 2 feet at 7 seconds. Intracoastal waters light chop.
A slight chance of thunderstorms. A chance of showers, mainly in
the morning.
.SUNDAY NIGHT...East winds around 5 knots. Seas around 2 feet.
Wave Detail: East 2 feet at 9 seconds. Intracoastal waters
smooth. A chance of showers with a slight chance of thunderstorms
after midnight.
.MONDAY...Northeast winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Northeast 2 feet at 7 seconds and east 2 feet at
8 seconds. Intracoastal waters light chop. A chance of showers. A
slight chance of thunderstorms in the morning, then a chance of
thunderstorms in the afternoon.
.MONDAY NIGHT...East winds 5 to 10 knots, diminishing to around
5 knots after midnight. Seas around 2 feet. Wave Detail: East
2 feet at 8 seconds and northeast 2 feet at 8 seconds.
Intracoastal waters light chop. A chance of showers with a slight
chance of thunderstorms.
.TUESDAY...Northeast winds 5 to 10 knots. Seas around 2 feet.
Intracoastal waters light chop. A chance of showers. A chance of
thunderstorms .
.WEDNESDAY...Northeast winds 15 to 20 knots, increasing to 20 to
25 knots. Seas 3 to 5 feet, occasionally to 6 feet. Intracoastal
waters rough. A slight chance of thunderstorms in the morning.
Showers likely through the day. 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.

$$

AMZ470-472-474-200900-
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 PM EDT Sat Sep 19 2026

.REST OF TODAY...East winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: East 2 feet at 7 seconds. A slight chance of showers and
thunderstorms.
.TONIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: East 2 feet at 8 seconds. A slight chance of
thunderstorms. A slight chance of showers in the evening, then a
chance of showers after midnight.
.SUNDAY...Northeast winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Northeast 2 feet at 7 seconds and east 2 feet at
11 seconds. A slight chance of thunderstorms. A chance of
showers, mainly in the morning.
.SUNDAY NIGHT...East winds around 5 knots. Seas around 2 feet.
Wave Detail: East 2 feet at 9 seconds. A chance of showers and
thunderstorms after midnight.
.MONDAY AND MONDAY NIGHT...East winds 5 to 10 knots. Seas 2 to
3 feet. Wave Detail: Southeast 2 feet at 8 seconds and northeast
2 feet at 8 seconds. A chance of showers and thunderstorms.
.TUESDAY...Northeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: East 2 feet at 8 seconds. A chance of thunderstorms.
.WEDNESDAY...Northeast winds 15 to 20 knots. Seas 4 to 6 feet,
occasionally to 8 feet. A chance of thunderstorms. Showers likely
.

Winds and seas higher in and near thunderstorms.

$$