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FZUS52 KJAX 190538
CWFJAX

Coastal Waters Forecast for Northeast Florida/Southeast Georgia
National Weather Service Jacksonville FL
138 AM EDT Sat Jul 19 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.

AMZ400-192045-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
138 AM EDT Sat Jul 19 2025

.SYNOPSIS...

High pressure will be centered over the FL peninsula this afternoon.
Only isolated late afternoon and evening thunderstorms are possible
across the near shore waters through this afternoon into early
evening. Troughing will then develop on Sunday over the southeastern
states on Sunday, with this feature potentially sharpening near our
local waters early next week. Chances for showers and thunderstorms
will increase beginning late Sunday afternoon. Strong to isolated
severe afternoon and evening thunderstorms potentially impacting our
local waters each day next week.


.GULF STREAM...

The approximate location of the west wall of the Gulf Stream as of
Jul 17, 2025 at 1200 UTC...

 64 nautical miles east of Flagler Beach.
 73 nautical miles east of Saint Augustine Beach.
 82 nautical miles east of Jacksonville Beach.
 68 nautical miles east southeast of St Simons Island.

This data courtesy of the Naval Oceanographic Office.


$$

AMZ450-452-454-192045-
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-
138 AM EDT Sat Jul 19 2025

.TODAY...South winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 2 feet at 8 seconds. Intracoastal waters light
chop.
.TONIGHT...South winds 10 to 15 knots, becoming southwest 5 to
10 knots after midnight. Seas 2 to 3 feet. Wave Detail: Southeast
3 feet at 8 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:
Southeast 2 feet at 8 seconds. Intracoastal waters a moderate
chop.
.SUNDAY NIGHT...South winds 10 to 15 knots, becoming southwest
after midnight. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet
at 4 seconds and southeast 2 feet at 8 seconds. Intracoastal
waters a moderate chop. A slight chance of showers and
thunderstorms in the evening.
.MONDAY...West winds 5 to 10 knots, becoming south in the
afternoon. Seas around 2 feet. Wave Detail: South 2 feet at
4 seconds and southeast 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...Southwest winds 5 to 10 knots. Seas around
2 feet. Wave Detail: Southeast 2 feet at 8 seconds. Intracoastal
waters light chop. A chance of showers. A chance of
thunderstorms, mainly in the evening.
.TUESDAY THROUGH WEDNESDAY...Southeast winds 10 to 15 knots. Seas
2 to 3 feet. Intracoastal waters a moderate chop. Showers with
thunderstorms likely.

Winds and waves higher in and near thunderstorms.

$$

AMZ470-472-474-192045-
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-
138 AM EDT Sat Jul 19 2025

.TODAY...Southwest winds 5 to 10 knots, becoming south this
afternoon. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at
8 seconds.
.TONIGHT...Southwest winds 10 to 15 knots. Seas around 3 feet.
Wave Detail: Southeast 3 feet at 8 seconds and south 2 feet at
4 seconds.
.SUNDAY...Southwest winds 5 to 10 knots, becoming south in the
afternoon. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at
8 seconds and south 2 feet at 4 seconds.
.SUNDAY NIGHT...Southwest winds 10 to 15 knots. Seas 2 to 3 feet.
Wave Detail: Southeast 3 feet at 8 seconds and south 2 feet at
4 seconds. A slight chance of showers and thunderstorms.
.MONDAY AND MONDAY NIGHT...Southwest winds 10 to 15 knots. Seas
2 to 3 feet. Wave Detail: Southwest 2 feet at 4 seconds and
southeast 2 feet at 8 seconds. A chance of showers and
thunderstorms.
.TUESDAY...Southwest winds 5 to 10 knots, becoming southeast.
Seas around 2 feet. Wave Detail: Southwest 2 feet at 4 seconds
and southeast 2 feet at 8 seconds. A chance of thunderstorms.
Showers.
.WEDNESDAY...East winds 5 to 10 knots, becoming southeast. Seas
3 to 5 feet, occasionally to 6 feet. Showers with a chance of
thunderstorms, then showers likely with a slight chance of
thunderstorms after midnight.

Winds and seas higher in and near thunderstorms.

$$