370
FZUS52 KJAX 241740 AAA
CWFJAX

Coastal Waters Forecast for Northeast Florida/Southeast Georgia...UPDATED
National Weather Service Jacksonville FL
140 PM EDT Sun Aug 24 2025

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.

AMZ400-250845-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
140 PM EDT Sun Aug 24 2025

.SYNOPSIS...

Long period swells will continue to impact our local waters,
keeping combined seas elevated through tonight. Areas near inlets
may be choppy from this swell activity today. Meanwhile, a slow
moving cold front positioned across Interstate 10 this morning
will slowly drift southward through tonight. Showers and
thunderstorms will impact our local waters this afternoon through
early evening. The frontal boundary will then push south of our
local waters on Monday evening, stalling across the Florida
peninsula by midweek, resulting in a decreasing coverage of
showers and thunderstorms for our area on Tuesday and Wednesday.
Breezy northeasterly winds will may then develop by Wednesday and
Thursday as high pressure builds over the Ohio Valley and coastal
troughing develops across the northeast Florida waters, where
chances for showers and thunderstorms will increase later this
week.


.GULF STREAM...

The approximate location of the west wall of the Gulf Stream as of
Aug 23, 2025 at 1200 UTC...

 57 nautical miles east of Flagler Beach.
 69 nautical miles east southeast of Saint Augustine Beach.
 75 nautical miles east of Jacksonville Beach.
 77 nautical miles east southeast of St Simons Island.

This data courtesy of the Naval Oceanographic Office.

$$

AMZ450-452-454-250845-
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-
140 PM EDT Sun Aug 24 2025

.TONIGHT...Southwest winds 5 to 10 knots, becoming west after
midnight. Seas 2 to 3 feet. Wave Detail: Northeast 3 feet at
14 seconds and east 2 feet at 6 seconds. Intracoastal waters
light chop. A chance of showers and thunderstorms in the evening.
.MONDAY...West winds 5 to 10 knots, becoming south in the
afternoon. Seas 2 to 3 feet. Wave Detail: Northeast 3 feet at
14 seconds and southeast 2 feet at 5 seconds. Intracoastal waters
light chop. A slight chance of showers and thunderstorms in the
morning, then a chance of showers and thunderstorms in the
afternoon.
.MONDAY NIGHT...Southwest winds 5 to 10 knots, becoming west
after midnight. Seas 2 to 3 feet. Wave Detail: Northeast 3 feet
at 12 seconds. Intracoastal waters light chop. A slight chance of
showers and thunderstorms.
.TUESDAY...Northwest winds 5 to 10 knots, becoming northeast in
the afternoon. Seas around 2 feet. Wave Detail: Northeast 2 feet
at 12 seconds. Intracoastal waters light chop. A chance of
showers. A slight chance of thunderstorms in the afternoon.
.TUESDAY NIGHT...East winds around 5 knots, becoming northwest
after midnight. Seas around 2 feet. Wave Detail: Northeast 2 feet
at 12 seconds. Intracoastal waters light chop. A slight chance of
thunderstorms in the evening. A slight chance of showers.
.WEDNESDAY...Northeast winds 10 to 15 knots. Seas around 2 feet.
Intracoastal waters a moderate chop. A slight chance of showers
in the morning, then a chance of showers with a slight chance of
thunderstorms through the night. A slight chance of showers after
midnight.
.THURSDAY...East winds 5 to 10 knots. Seas 2 to 3 feet.
Intracoastal waters light chop. A chance of showers. A chance of
thunderstorms through the night. A slight chance of thunderstorms
after midnight.

Winds and waves higher in and near thunderstorms.

$$

AMZ470-472-474-250845-
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-
140 PM EDT Sun Aug 24 2025

.TONIGHT...West winds 5 to 10 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Wave Detail: Northeast 4 feet at
14 seconds and southeast 2 feet at 6 seconds. A chance of
showers. A chance of thunderstorms.
.MONDAY...West winds 5 to 10 knots, becoming south in the
afternoon. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail:
Northeast 4 feet at 13 seconds and southeast 2 feet at 5 seconds.
A chance of showers. A slight chance of thunderstorms in the
morning, then a chance of thunderstorms in the afternoon.
.MONDAY NIGHT...Southwest winds 5 to 10 knots, becoming west
after midnight. Seas 2 to 3 feet. Wave Detail: Northeast 3 feet
at 12 seconds and southeast 2 feet at 5 seconds. A chance of
showers and thunderstorms.
.TUESDAY...Northwest winds 5 to 10 knots, becoming north in the
afternoon. Seas 2 to 3 feet. Wave Detail: Northeast 3 feet at
12 seconds and south 2 feet at 4 seconds. A chance of showers
with a slight chance of thunderstorms.
.TUESDAY NIGHT...Southeast winds around 5 knots, becoming
northwest after midnight. Seas 2 to 3 feet. Wave Detail:
Northeast 2 feet at 12 seconds. A chance of showers with a slight
chance of thunderstorms.
.WEDNESDAY...Northeast winds around 10 knots. Seas 2 to 3 feet. A
chance of showers with a slight chance of thunderstorms.
.THURSDAY...East winds around 10 knots. Seas 2 to 3 feet. A
chance of showers with a slight chance of thunderstorms through
the day, then a chance of thunderstorms in the evening. Showers
likely through the night. A slight chance of thunderstorms after
midnight.

Winds and seas higher in and near thunderstorms.

$$