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FZUS52 KJAX 051307
CWFJAX

Coastal Waters Forecast for Northeast Florida/Southeast Georgia
National Weather Service Jacksonville FL
907 AM EDT Sat Sep 5 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.

AMZ400-060415-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
907 AM EDT Sat Sep 5 2026

.SYNOPSIS...

Weak high pressure will remain in place through tonight before a frontal
boundary sinks south across area Sunday through Monday night. High
pressure will build to the northeast following the front early
next week with a coastal trough over the local waters. A brief
period of Small Craft Exercise Caution conditions is possible
mainly over the Georgia waters Tuesday. The trough weakens mid-
week as high pressure builds south of the region. Another front
approaches from the north early next weekend.

.GULF STREAM...

The approximate location of the west wall of the Gulf Stream as of
Sep 04, 2026 at 0000 UTC...

 50 nautical miles east of Flagler Beach.
 53 nautical miles east of Saint Augustine Beach.
 68 nautical miles east southeast of Jacksonville Beach.
 71 nautical miles east southeast of St Simons Island.

This data derived from NCEP Global RTOFS model.

$$

AMZ450-452-454-060415-
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-
907 AM EDT Sat Sep 5 2026

.REST OF TODAY...West winds 5 to 10 knots, becoming south this
afternoon. Seas around 2 feet. Wave Detail: Southeast 2 feet at
7 seconds. Intracoastal waters light chop. A slight chance of
showers and thunderstorms.
.TONIGHT...Southwest winds around 10 knots, becoming west after
midnight. Seas around 2 feet. Wave Detail: Southeast 2 feet at
6 seconds. Intracoastal waters light chop. A slight chance of
showers and thunderstorms.
.SUNDAY...West winds 5 to 10 knots, becoming south in the
afternoon. Seas around 2 feet. Intracoastal waters light chop. A
chance of showers and thunderstorms in the afternoon.
.SUNDAY NIGHT...Southwest winds 5 to 10 knots, becoming northwest
after midnight. Seas around 2 feet. Intracoastal waters light
chop. Showers likely with a chance of thunderstorms.
.MONDAY AND MONDAY NIGHT...Northeast winds 5 to 10 knots. Seas
around 2 feet. Wave Detail: Northeast 2 feet at 4 seconds.
Intracoastal waters light chop. Showers with a chance of
thunderstorms.
.TUESDAY...Northeast winds 10 to 15 knots. Seas 2 to 4 feet,
occasionally to 5 feet. Wave Detail: Northeast 3 feet at
8 seconds and northeast 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 through the night. A slight chance of showers and
thunderstorms after midnight.
.WEDNESDAY...East winds 5 to 10 knots, becoming southeast. Seas
3 to 4 feet, occasionally to 5 feet. Intracoastal waters light
chop. A slight chance of thunderstorms in the morning. A chance
of showers through the day. A chance of thunderstorms in the
afternoon, then a slight chance of showers and thunderstorms
through the night.

Winds and waves higher in and near thunderstorms.

$$

AMZ470-472-474-060415-
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-
907 AM EDT Sat Sep 5 2026

.REST OF TODAY...West winds 5 to 10 knots, becoming south this
afternoon. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at
7 seconds. A slight chance of showers and thunderstorms.
.TONIGHT...Southwest winds 10 to 15 knots, becoming west after
midnight. Seas 2 to 3 feet. Wave Detail: Southwest 2 feet at
4 seconds and southeast 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...West winds 10 to 15 knots, becoming south 5 to 10 knots
in the afternoon. Seas 2 to 3 feet. Wave Detail: Southwest 2 feet
at 4 seconds. A slight chance of showers and thunderstorms in the
morning, then a chance of showers and thunderstorms in the
afternoon.
.SUNDAY NIGHT...Southwest winds 5 to 10 knots, becoming northwest
after midnight. Seas around 2 feet. Wave Detail: South 2 feet at
5 seconds and southeast 2 feet at 9 seconds. Showers likely with
a chance of thunderstorms.
.MONDAY AND MONDAY NIGHT...Northeast winds 5 to 10 knots. Seas
2 to 3 feet. Wave Detail: Northeast 2 feet at 5 seconds and
southeast 2 feet at 9 seconds. Showers likely with a chance of
thunderstorms.
.TUESDAY...East winds 5 to 10 knots. Seas 2 to 4 feet,
occasionally to 5 feet. Wave Detail: East 4 feet at 7 seconds. A
chance of showers. A chance of thunderstorms .
.WEDNESDAY...East winds 5 to 10 knots, becoming south. Seas 3 to
5 feet, occasionally to 6 feet. A slight chance of thunderstorms
in the morning. A chance of showers through the day. A chance of
thunderstorms in the afternoon. A slight chance of showers and
thunderstorms through the night.

Winds and seas higher in and near thunderstorms.

$$