092
FZUS52 KJAX 221419
CWFJAX

Coastal Waters Forecast for Northeast Florida/Southeast Georgia
National Weather Service Jacksonville FL
1019 AM EDT Fri Aug 22 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.

AMZ400-230530-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
1019 AM EDT Fri Aug 22 2025

.SYNOPSIS...

Long period swells emanating from Hurricane Erin will keep
combined seas elevated through the weekend, especially offshore.
Meanwhile, a stationary frontal boundary over the Georgia waters
will remain in place through the weekend. Rounds of showers and
thunderstorms will impact our local waters from this afternoon
through Monday evening. The frontal boundary will then shift
southward on Tuesday, stalling across the Florida peninsula
towards midweek, resulting in a decreasing coverage of showers and
thunderstorms for our area by Tuesday and Wednesday.

.GULF STREAM...

The approximate location of the west wall of the Gulf Stream as of
Aug 21, 2025 at 1200 UTC...

 56 nautical miles east northeast of Flagler Beach.
 54 nautical miles east of Saint Augustine Beach.
 61 nautical miles east of Jacksonville Beach.
 89 nautical miles east southeast of St Simons Island.

This data courtesy of the Naval Oceanographic Office.

$$

AMZ450-452-454-230530-
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-
1019 AM EDT Fri Aug 22 2025

.REST OF TODAY...Southwest winds around 5 knots, becoming
southeast around 10 knots this afternoon. Seas 3 to 5 feet,
occasionally to 6 feet. Wave Detail: East 5 feet at 12 seconds and
southeast 2 feet at 6 seconds. Intracoastal waters becoming a
light chop. A chance of showers and thunderstorms this morning,
then showers and thunderstorms likely this afternoon.
.TONIGHT...Southwest winds 5 to 10 knots. Seas 3 to 5 feet,
occasionally to 6 feet. Wave Detail: Northeast 4 feet at 12
seconds and southeast 2 feet at 6 seconds. Intracoastal waters
mostly smooth. Showers and thunderstorms likely this evening,
then a chance of showers with a slight chance of thunderstorms
after midnight.
.SATURDAY...West winds around 5 knots, becoming southeast around
10 knots in the afternoon. Seas 3 to 5 feet, occasionally to 6
feet. Wave Detail: Northeast 4 feet at 13 seconds and southeast 2
feet at 6 seconds. Intracoastal waters becoming a light chop. A
chance of showers with a slight chance of thunderstorms in the
morning, then showers and thunderstorms likely in the afternoon.
.SATURDAY NIGHT...Southwest winds 5 to 10 knots. Seas 3 to 5 feet,
occasionally to 6 feet. Wave Detail: Northeast 4 feet at 13
seconds and southeast 2 feet at 6 seconds. Intracoastal waters
light chop. Showers likely with a chance of thunderstorms in the
evening, then a chance of showers with a slight chance of
thunderstorms after midnight.
.SUNDAY AND SUNDAY NIGHT...West winds 5 to 10 knots. Seas 3 to 4
feet, occasionally to 5 feet. Wave Detail: Northeast 4 feet at 13
seconds and southeast 2 feet at 6 seconds. Intracoastal waters
mostly smooth. A chance of showers with a slight chance of
thunderstorms in the morning, then showers with thunderstorms
likely in the afternoon and evening.
.MONDAY AND MONDAY NIGHT...West northwest winds 5 to 10 knots.
Seas 2 to 4 feet, occasionally to 5 feet. Intracoastal waters
mostly smooth. Showers and thunderstorms likely.
.TUESDAY...Northwest winds 5 to 10 knots, becoming east around
10 knots during the afternoon. Seas 2 to 4 feet, occasionally to
5 feet. Intracoastal waters becoming a light chop. A chance of
showers and thunderstorms.

Winds and waves higher in and near thunderstorms.

$$

AMZ470-472-474-230530-
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-
1019 AM EDT Fri Aug 22 2025

...SMALL CRAFT EXERCISE CAUTION UNTIL 8 PM EDT THIS EVENING...

.REST OF TODAY...West winds around 5 knots, becoming southeast
this afternoon. Seas 4 to 6 feet, occasionally to 8 feet. Wave
Detail: Northeast 6 feet at 12 seconds and southeast 3 feet at
6 seconds. Showers and thunderstorms likely.
.TONIGHT...Southwest winds 5 to 10 knots. Seas 4 to 6 feet,
occasionally to 8 feet. Wave Detail: Northeast 6 feet at 12
seconds and southeast 3 feet at 6 seconds. Showers and
thunderstorms likely in the evening, then a chance of showers and
thunderstorms after midnight.
.SATURDAY AND SATURDAY NIGHT...West southwest winds 5 to 10
knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail:
Northeast 6 feet at 13 seconds and southeast 3 feet at 6 seconds.
Showers and thunderstorms likely.
.SUNDAY AND SUNDAY NIGHT...West winds around 10 knots. Seas 4 to
6 feet, occasionally to 8 feet. Wave Detail: Northeast 5 feet at
13 seconds and southeast 3 feet at 6 seconds. Showers and
thunderstorms likely.
.MONDAY AND MONDAY NIGHT...West winds around 10 knots. Seas 3 to
5 feet, occasionally to 6 feet. Wave Detail: Northeast 5 feet at
12 seconds and southeast 3 feet at 6 seconds. Showers and
thunderstorms likely.
.TUESDAY...Northwest winds 5 to 10 knots, becoming east northeast
during the afternoon. Seas 3 to 5 feet, occasionally to 6 feet.
Wave Detail: East 5 feet at 12 seconds and south 2 feet at 6
seconds. A chance of showers and thunderstorms.

Winds and seas higher in and near thunderstorms.

$$