603
FZUS52 KJAX 121713
CWFJAX

Coastal Waters Forecast for Northeast Florida/Southeast Georgia
National Weather Service Jacksonville FL
113 PM EDT Fri Jun 12 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.

AMZ400-130800-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
113 PM EDT Fri Jun 12 2026

.SYNOPSIS...

A weakening front will stall north of the waters tonight and
dissipate through the weekend as another front pushes into the
southeastern US early next week. This will promote nightly southerly
wind surges to Exercise Caution levels, mainly offshore through at
least the middle part of next week. The predominantly offshore flow
early next week will strengthen with the second front and increase
chances for afternoon thunderstorms that are steered into and across
the coastal waters.


.GULF STREAM...

The approximate location of the west wall of the Gulf Stream as of
Jun 12, 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.


$$

AMZ450-452-454-130800-
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-
113 PM EDT Fri Jun 12 2026

.REST OF TODAY...South winds 5 to 10 knots, becoming southeast
10 to 15 knots this afternoon. Seas 2 to 3 feet. Wave Detail:
Southeast 2 feet at 4 seconds. Intracoastal waters a moderate
chop. A slight chance of showers and thunderstorms this
afternoon.
.TONIGHT...South winds 10 to 15 knots, becoming southwest after
midnight. Seas 2 to 3 feet. Wave Detail: South 2 feet at
4 seconds. Intracoastal waters a moderate chop. A slight chance
of showers and thunderstorms in the evening.
.SATURDAY...Southwest winds 5 to 10 knots, becoming south 10 to
15 knots in the afternoon. Seas around 2 feet. Wave Detail: South
2 feet at 4 seconds. Intracoastal waters a moderate chop. A
slight chance of showers and thunderstorms in the afternoon.
.SATURDAY NIGHT...Southwest winds 10 to 15 knots. Seas around
2 feet. Wave Detail: South 2 feet at 4 seconds. Intracoastal
waters a moderate chop.
.SUNDAY...Southwest winds 5 to 10 knots, becoming south 10 to
15 knots in the afternoon. Seas 2 to 3 feet. Wave Detail: South
2 feet at 4 seconds. Intracoastal waters a moderate chop. A
chance of showers and thunderstorms in the afternoon.
.SUNDAY NIGHT...Southwest winds 10 to 15 knots. Seas 2 to 3 feet.
Wave Detail: South 3 feet at 4 seconds. Intracoastal waters a
moderate chop. A chance of showers with a slight chance of
thunderstorms in the evening.
.MONDAY THROUGH TUESDAY...Southwest winds 10 to 15 knots. Seas
2 to 3 feet. Intracoastal waters a moderate chop. Showers and
thunderstorms likely.

Winds and waves higher in and near thunderstorms.

$$

AMZ470-472-474-130800-
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-
113 PM EDT Fri Jun 12 2026

.REST OF TODAY...Southwest winds 5 to 10 knots, becoming south
10 to 15 knots this afternoon. Seas 2 to 3 feet. Wave Detail:
South 2 feet at 4 seconds and east 2 feet at 8 seconds.
.TONIGHT...Southwest winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: South 3 feet at 4 seconds and east 2 feet at 8 seconds. A
slight chance of showers after midnight.
.SATURDAY...West winds 5 to 10 knots, becoming south 10 to
15 knots in the afternoon. Seas 2 to 3 feet. Wave Detail:
Southwest 2 feet at 4 seconds.
.SATURDAY NIGHT...Southwest winds 10 to 15 knots. Seas 2 to
3 feet. Wave Detail: South 2 feet at 4 seconds.
.SUNDAY...Southwest winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: South 3 feet at 4 seconds. A slight chance of showers and
thunderstorms in the afternoon.
.SUNDAY NIGHT...Southwest winds 15 to 20 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Wave Detail: South 3 feet at 4 seconds. A
chance of showers and thunderstorms, mainly in the evening.
.MONDAY...Southwest winds 10 to 15 knots, increasing to 15 to
20 knots. Seas 2 to 4 feet, occasionally to 5 feet. A chance of
showers and thunderstorms through the night. A slight chance of
showers and thunderstorms after midnight.
.TUESDAY...Southwest winds 10 to 15 knots. Seas 2 to 4 feet,
occasionally to 5 feet. A slight chance of showers and
thunderstorms in the morning, then showers likely in the
afternoon. A chance of thunderstorms through the night. A chance
of showers through the night. A slight chance of thunderstorms
after midnight.

Winds and seas higher in and near thunderstorms.

$$