450
FZUS52 KJAX 131752
CWFJAX

Coastal Waters Forecast for Northeast Florida/Southeast Georgia
National Weather Service Jacksonville FL
152 PM EDT Sun Jul 13 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.

AMZ400-140800-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
152 PM EDT Sun Jul 13 2025

.SYNOPSIS...

Atlantic high pressure will weaken and shift southward through
tonight as a weak trough/broad low develops near the Gulf Stream
waters. This feature will then slowly migrate westward across our
local waters on Monday, folled by shifting westward into the
northeast Gulf of Mexico by Tuesday. Showers and thunderstorms will
remain scattered to numerous at times across our local waters
beginning through Monday and Tuesday, with more northerly prevailing
winds shifting to southerly by Tuesday as this trough slowly
organizes over the eastern Gulf towards midweek.


.GULF STREAM...

The approximate location of the west wall of the Gulf Stream as of
Jul 12, 2025 at 1200 UTC...

 56 nautical miles east northeast of Flagler Beach.
 59 nautical miles east of Saint Augustine Beach.
 70 nautical miles east of Jacksonville Beach.
 90 nautical miles east southeast of St Simons Island.

This data courtesy of the Naval Oceanographic Office.


$$

AMZ450-452-454-140800-
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-
152 PM EDT Sun Jul 13 2025

.REST OF TODAY...West winds around 5 knots, becoming south this
afternoon. Seas around 2 feet. Wave Detail: Southeast 2 feet at
8 seconds. Intracoastal waters light chop. A chance of showers
and thunderstorms.
.TONIGHT...Southwest winds 5 to 10 knots, becoming west after
midnight. Seas around 2 feet. Wave Detail: Southeast 2 feet at
8 seconds. Intracoastal waters light chop. A slight chance of
showers and thunderstorms.
.MONDAY...North winds 5 to 10 knots, becoming northeast in the
afternoon. Seas around 2 feet. Wave Detail: East 2 feet at
8 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...Northeast winds 5 to 10 knots. Seas around
2 feet. Wave Detail: Northeast 2 feet at 6 seconds. Intracoastal
waters light chop. A chance of showers. A chance of
thunderstorms, mainly in the evening.
.TUESDAY...East winds 5 to 10 knots, becoming southeast 10 to
15 knots in the afternoon. Seas around 2 feet. Wave Detail: East
2 feet at 6 seconds. Intracoastal waters a moderate chop. A
chance of thunderstorms. A chance of showers in the morning, then
showers likely in the afternoon.
.TUESDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to
3 feet. Wave Detail: Southeast 3 feet at 5 seconds. Intracoastal
waters a moderate chop. A chance of showers. A chance of
thunderstorms, mainly in the evening.
.WEDNESDAY THROUGH THURSDAY...South winds 15 to 20 knots. Seas
2 to 3 feet. Intracoastal waters choppy. Showers and
thunderstorms likely.

Winds and waves higher in and near thunderstorms.

$$

AMZ470-472-474-140800-
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-
152 PM EDT Sun Jul 13 2025

.REST OF TODAY...West winds 5 to 10 knots, becoming southwest
this afternoon. Seas 2 to 3 feet. Wave Detail: West 2 feet at
4 seconds and southeast 2 feet at 8 seconds. A slight chance of
showers and thunderstorms.
.TONIGHT...Southwest winds 5 to 10 knots, becoming northwest
after midnight. Seas around 2 feet. Wave Detail: West 2 feet at
3 seconds and southeast 2 feet at 8 seconds. A chance of showers
and thunderstorms, mainly in the evening.
.MONDAY...North winds around 10 knots, becoming northeast in the
afternoon. Seas around 2 feet. Wave Detail: Northwest 2 feet at
3 seconds and east 2 feet at 8 seconds. A chance of showers. A
slight chance of thunderstorms in the morning, then a chance of
thunderstorms in the afternoon.
.MONDAY NIGHT...Northeast winds 5 to 10 knots. Seas around
2 feet. Wave Detail: Northeast 2 feet at 6 seconds. A chance of
showers and thunderstorms.
.TUESDAY AND TUESDAY NIGHT...South winds 10 to 15 knots. Seas
2 to 3 feet. Wave Detail: Southeast 3 feet at 6 seconds. Showers
likely with a chance of thunderstorms.
.WEDNESDAY THROUGH THURSDAY...South winds 10 to 15 knots. Seas
around 3 feet. Wave Detail: Southeast 3 feet at 6 seconds.
Showers likely with a chance of thunderstorms.

Winds and seas higher in and near thunderstorms.

$$