Coastal Waters Forecast
Issued by NWS Jacksonville, FL

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579
FZUS52 KJAX 251611
CWFJAX

Coastal Waters Forecast for Northeast Florida/Southeast Georgia
National Weather Service Jacksonville FL
1210 PM EDT Wed Jun 25 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.

AMZ400-260700-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
1210 PM EDT Wed Jun 25 2025

.SYNOPSIS...

High pressure centered directly over our local waters will weaken
and shift southward this eveing as a surface trough develops over
the southeastern states. Strong to severe thunderstorms developing
along this trough over the Carolinas this late evening may sweep
southward across the Georgia waters late tonight. Damaging wind
gusts, hail, and frequent lightning strikes will be possible with
any severe thunderstorms that move through our area around or just
after midnight on Wednesday night. Atlantic high pressure will then
extend its axis westward across the Florida peninsula from Thursday
through the early portions of next week as surface troughing
gradually sharpens over the southeastern states, creating a
prevailing offshore wind flow. Afternoon and evening showers and
thunderstorms will likely push eastward across our local waters each
day during this period, with daily strong storm potential.


.GULF STREAM...

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

 66 nautical miles east northeast of Flagler Beach.
 73 nautical miles east of Saint Augustine Beach.
 82 nautical miles east of Jacksonville Beach.
 93 nautical miles east southeast of St Simons Island.

This data courtesy of the Naval Oceanographic Office.


$$

AMZ450-452-454-260700-
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-
1210 PM EDT Wed Jun 25 2025

.REST OF TODAY...Southeast winds 5 to 10 knots. Seas 2 to 3 feet.
Wave Detail: South 2 feet at 3 seconds and southeast 2 feet at
8 seconds. Intracoastal waters light chop.
.TONIGHT...South winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 2 feet at 4 seconds and east 2 feet at
9 seconds. Intracoastal waters light chop. A slight chance of
showers and thunderstorms.
.THURSDAY...South winds 5 to 10 knots, becoming southeast 10 to
15 knots in the afternoon. Seas around 2 feet. Wave Detail:
Southeast 2 feet at 4 seconds and east 2 feet at 9 seconds.
Intracoastal waters a moderate chop. A slight chance of showers
and thunderstorms in the afternoon.
.THURSDAY NIGHT...South winds 10 to 15 knots, becoming southwest
5 to 10 knots after midnight. Seas around 2 feet. Wave Detail:
Southeast 2 feet at 4 seconds. Intracoastal waters a moderate
chop. A slight chance of thunderstorms in the evening. A slight
chance of showers.
.FRIDAY...South winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: East 2 feet at 9 seconds. Intracoastal waters light chop.
A chance of showers with a slight chance of thunderstorms in the
morning, then showers likely with a chance of thunderstorms in
the afternoon.
.FRIDAY NIGHT...South winds 5 to 10 knots, becoming southwest
after midnight. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet
at 9 seconds. Intracoastal waters light chop. A chance of showers
and thunderstorms in the evening, then a slight chance of showers
after midnight.
.SATURDAY THROUGH SUNDAY...South winds 5 to 10 knots. Seas 2 to
3 feet. Intracoastal waters light chop. Showers likely with a
chance of thunderstorms.

Winds and waves higher in and near thunderstorms.

$$

AMZ470-472-474-260700-
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-
1210 PM EDT Wed Jun 25 2025

.REST OF TODAY...South winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: Southeast 2 feet at 8 seconds.
.TONIGHT...South winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 2 feet at 4 seconds and east 2 feet at
9 seconds. A slight chance of thunderstorms. A slight chance of
showers in the evening, then a chance of showers after midnight.
.THURSDAY...South winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 2 feet at 4 seconds and southeast 2 feet at
9 seconds. A slight chance of showers and thunderstorms.
.THURSDAY NIGHT...South winds 5 to 10 knots. Seas 2 to 3 feet.
Wave Detail: Southeast 2 feet at 4 seconds and east 2 feet at
9 seconds. A chance of showers with a slight chance of
thunderstorms.
.FRIDAY...South winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 3 feet at 9 seconds. A chance of showers. A
slight chance of thunderstorms in the morning, then a chance of
thunderstorms in the afternoon.
.FRIDAY NIGHT...South winds around 10 knots, becoming southwest
after midnight. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet
at 9 seconds. A chance of showers. A chance of thunderstorms,
mainly in the evening.
.SATURDAY THROUGH SUNDAY...South winds 5 to 10 knots. Seas 2 to
3 feet. Showers likely with a chance of thunderstorms.

Winds and seas higher in and near thunderstorms.

$$