538
FZUS52 KJAX 121311
CWFJAX

Coastal Waters Forecast for Northeast Florida/Southeast Georgia
National Weather Service Jacksonville FL
911 AM EDT Wed Mar 12 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.

AMZ400-122200-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
911 AM EDT Wed Mar 12 2025

.SYNOPSIS...High pressure across Florida will gradually shift
south and east through tonight. The surface high pressure extends
across central Florida Thursday as a weak front approaches from
the west and begins to stall across south Georgia. This front will
lift northward as a warm front late Friday into Saturday, as a
stronger frontal system approaches from the west. Small Craft
Advisory conditions develop Saturday as southerly winds increase
with the approach of the next front. Showers and storms preceded
the front passage Sunday, then the front slowly settles south of
the local waters through early Monday.

.GULF STREAM...

The approximate location of the west wall of the Gulf Stream as of
Mar 11, 2025 at 1200 UTC...

 62 nautical miles east northeast of Flagler Beach.
 66 nautical miles east of Saint Augustine Beach.
 75 nautical miles east of Jacksonville Beach.
 94 nautical miles east of St Simons Island.

This data courtesy of the Naval Oceanographic Office.


$$

AMZ450-452-454-122200-
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-
911 AM EDT Wed Mar 12 2025

.REST OF TODAY...West winds 5 to 10 knots, becoming south this
afternoon. Seas 2 to 3 feet. Wave Detail: Northeast 3 feet at
9 seconds. Intracoastal waters light chop.
.TONIGHT...South winds 5 to 10 knots, becoming west after
midnight. Seas 2 to 3 feet. Wave Detail: East 3 feet at
9 seconds. Intracoastal waters light chop.
.THURSDAY...Southwest winds 5 to 10 knots, becoming southeast in
the afternoon. Seas 2 to 3 feet. Wave Detail: East 3 feet at
9 seconds and south 2 feet at 3 seconds. Intracoastal waters
light chop.
.THURSDAY NIGHT...South winds 5 to 10 knots, becoming west after
midnight. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at
4 seconds and east 2 feet at 8 seconds. Intracoastal waters light
chop.
.FRIDAY...Northeast winds around 5 knots, becoming east in the
afternoon. Seas around 2 feet. Wave Detail: East 2 feet at
8 seconds. Intracoastal waters light chop.
.FRIDAY NIGHT...Southeast winds 5 to 10 knots, becoming south
10 to 15 knots after midnight. Seas 2 to 3 feet. Wave Detail:
Southeast 2 feet at 4 seconds. Intracoastal waters a moderate
chop.
.SATURDAY...South winds 20 to 25 knots. Seas 3 to 5 feet,
occasionally to 6 feet, building to 5 to 7 feet, occasionally to
9 feet. Intracoastal waters rough.
.SUNDAY...South winds 15 to 20 knots, becoming west. Seas 4 to
6 feet, occasionally to 8 feet. Intracoastal waters choppy. A
chance of showers with a slight chance of thunderstorms.

Winds and waves higher in and near thunderstorms.

$$

AMZ470-472-474-122200-
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-
911 AM EDT Wed Mar 12 2025

.REST OF TODAY...West winds 5 to 10 knots, becoming south this
afternoon. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail:
Northeast 4 feet at 9 seconds.
.TONIGHT...South winds around 10 knots, becoming west after
midnight. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail:
Northeast 4 feet at 9 seconds and south 2 feet at 3 seconds.
.THURSDAY...West winds 5 to 10 knots, becoming south in the
afternoon. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail:
Northeast 3 feet at 8 seconds and southwest 2 feet at 3 seconds.
.THURSDAY NIGHT...South winds 10 to 15 knots, becoming west 5 to
10 knots after midnight. Seas 2 to 3 feet. Wave Detail: South
2 feet at 4 seconds and northeast 2 feet at 8 seconds. A slight
chance of thunderstorms in the evening. A slight chance of
showers.
.FRIDAY...North winds around 5 knots, becoming east in the
afternoon. Seas around 2 feet. Wave Detail: Southeast 2 feet at
5 seconds and northeast 2 feet at 8 seconds.
.FRIDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to 4 feet,
occasionally to 5 feet. Wave Detail: Southeast 3 feet at
5 seconds and east 2 feet at 9 seconds.
.SATURDAY...South winds 15 to 20 knots, increasing to 20 to
25 knots. Seas 5 to 7 feet, occasionally to 9 feet, building to
7 to 8 feet, occasionally to 10 feet after midnight.
.SUNDAY...South winds 20 to 25 knots, becoming southwest 15 to
20 knots. Seas 5 to 8 feet, occasionally to 10 feet. A slight
chance of thunderstorms. A slight chance of showers in the
morning, then a chance of showers.

Winds and seas higher in and near thunderstorms.

$$