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FZUS52 KJAX 160001
CWFJAX

Coastal Waters Forecast for Northeast Florida/Southeast Georgia
National Weather Service Jacksonville FL
801 PM EDT Wed Jul 15 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.

AMZ400-161515-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
801 PM EDT Wed Jul 15 2026

.SYNOPSIS...

Weak high pressure centered over south Florida will shift slowly
westward across the Gulf through Friday, creating a west to
northwest flow across our local waters, with an afternoon sea breeze
developing each day through Saturday. The National Hurricane Center
has highlighted a low chance, around 20 percent, for tropical
cyclone development later this weekend into early next week which
could bring scattered to numerous thunderstorms to our local waters
as southwest winds begin to prevail.

.GULF STREAM...

The approximate location of the west wall of the Gulf Stream as of
Jul 15, 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.

$$

AMZ450-452-454-161515-
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-
801 PM EDT Wed Jul 15 2026

.REST OF TONIGHT...Southeast winds around 5 to 10 knots, becoming
west. Seas around 2 feet. Wave Detail: East 2 feet at 7 seconds.
Intracoastal waters light chop. A slight chance of showers and
thunderstorms early.
.THURSDAY...Northwest winds 5 to 10 knots, becoming southeast 10
knots in the afternoon. Seas around 2 feet. Wave Detail:
Northeast 2 feet at 7 seconds. Intracoastal waters light chop. A
slight chance of showers and thunderstorms in the afternoon.
.THURSDAY NIGHT...Southwest winds 5 to 10 knots. Seas around
2 feet. Wave Detail: Northeast 2 feet at 7 seconds. Intracoastal
waters light chop.
.FRIDAY...West winds 5 to 10 knots, becoming southeast in the
afternoon. Seas around 2 feet. Wave Detail: Northeast 2 feet at
7 seconds. Intracoastal waters light chop. A chance of showers
and thunderstorms in the afternoon.
.FRIDAY NIGHT...Southwest winds 5 to 10 knots. Seas around
2 feet. Wave Detail: South 2 feet at 3 seconds. Intracoastal
waters light chop.
.SATURDAY AND SATURDAY NIGHT...Southwest winds 15 to 20 knots.
Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: Southeast
3 feet at 4 seconds and southeast 3 feet at 8 seconds.
Intracoastal waters choppy. A slight chance of showers and
thunderstorms.
.SUNDAY THROUGH MONDAY...Southwest winds 15 to 20 knots. Seas
2 to 4 feet, occasionally to 5 feet. Intracoastal waters choppy.
A chance of showers and thunderstorms.

Winds and waves higher in and near thunderstorms.

$$

AMZ470-472-474-161515-
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-
801 PM EDT Wed Jul 15 2026

.REST OF TONIGHT...Southeast winds around 5 to 10 knots, becoming
west. Seas 2 to 3 feet. Wave Detail: Southwest 2 feet at 3
seconds and northeast 2 feet at 8 seconds.
.THURSDAY...Northwest winds 5 to 10 knots, becoming south in the
afternoon. Seas 2 to 3 feet. Wave Detail: West 2 feet at
3 seconds and northeast 2 feet at 7 seconds.
.THURSDAY NIGHT...Southwest winds 5 to 10 knots. Seas around
2 feet. Wave Detail: Northeast 2 feet at 7 seconds.
.FRIDAY...West winds 5 to 10 knots, becoming south in the
afternoon. Seas around 2 feet. Wave Detail: East 2 feet at
7 seconds.
.FRIDAY NIGHT...Southwest winds around 10 knots. Seas around
2 feet. Wave Detail: South 2 feet at 3 seconds.
.SATURDAY...Southwest winds 10 to 15 knots, becoming south 15 to
20 knots in the afternoon. Seas 2 to 4 feet, occasionally to
5 feet. Wave Detail: South 4 feet at 5 seconds.
.SATURDAY NIGHT...South winds 15 to 20 knots. Seas 3 to 5 feet,
occasionally to 6 feet. A slight chance of showers and
thunderstorms.
.SUNDAY...South winds 15 to 20 knots. Seas 4 to 6 feet,
occasionally to 8 feet. A slight chance of showers and
thunderstorms in the morning, then a chance of showers and
thunderstorms.
.MONDAY...Southwest winds 15 to 20 knots. Seas 3 to 5 feet,
occasionally to 6 feet. A chance of showers and thunderstorms.

Winds and seas higher in and near thunderstorms.

$$