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FZUS52 KJAX 181800
CWFJAX

Coastal Waters Forecast for Northeast Florida/Southeast Georgia
National Weather Service Jacksonville FL
100 PM EST Tue Nov 18 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.

AMZ400-190900-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
100 PM EST Tue Nov 18 2025

.SYNOPSIS...

A weak and coastal trough over the waters will lift northeastward
tonight, with a a few isolated showers possible off the northeast
Florida coast through the afternoon and evening. Otherwise, high
pressure will be the dominant weather feature through the end of
the week resulting in light winds and low seas across the local
waters. Patchy to areas of fog will be possible within about 10
miles of the coast each morning over the next several days. Over
the weekend, winds turn offshore and become breezy as a cold front
approaches and passes Sunday night. High pressure building in
behind the front will move offshore to the northeast early next
week setting up onshore flow and development of a coastal trough.

.GULF STREAM...

The approximate location of the west wall of the Gulf Stream as of
Nov 15, 2025 at 1200 UTC...

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

This data courtesy of the Naval Oceanographic Office.


$$

AMZ450-452-454-190900-
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-
100 PM EST Tue Nov 18 2025

.REST OF TODAY...Northeast winds 5 to 10 knots. Seas 2 to 3 feet.
Wave Detail: Northeast 3 feet at 6 seconds. Intracoastal waters
light chop.
.TONIGHT...Southeast winds 5 to 10 knots, becoming southwest
after midnight. Seas 2 to 3 feet. Wave Detail: East 3 feet at
8 seconds. Intracoastal waters light chop. Patchy fog after
midnight.
.WEDNESDAY...West winds around 5 knots, becoming southeast in the
afternoon. Seas around 2 feet. Wave Detail: East 2 feet at
8 seconds. Intracoastal waters smooth. Patchy fog in the morning.
.WEDNESDAY NIGHT...South winds around 5 knots, becoming west
after midnight. Seas around 2 feet. Wave Detail: East 2 feet at
7 seconds. Intracoastal waters smooth.
.THURSDAY...Northwest winds around 5 knots, becoming east in the
afternoon. Seas around 2 feet. Wave Detail: East 2 feet at
6 seconds. Intracoastal waters smooth.
.THURSDAY NIGHT...Southeast winds around 5 knots, becoming
southwest after midnight. Waves 1 foot or less. Intracoastal
waters smooth.
.FRIDAY THROUGH SATURDAY...Southwest winds 10 to 15 knots. Seas
around 2 feet. Intracoastal waters a moderate chop.

$$

AMZ470-472-474-190900-
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-
100 PM EST Tue Nov 18 2025

.REST OF TODAY...East winds around 10 knots. Seas around 3 feet.
Wave Detail: Northeast 3 feet at 6 seconds. A slight chance of
showers.
.TONIGHT...Southeast winds around 10 knots, becoming southwest
after midnight. Seas 2 to 3 feet. Wave Detail: East 3 feet at
8 seconds.
.WEDNESDAY...West winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: Northeast 3 feet at 7 seconds.
.WEDNESDAY NIGHT...Southwest winds 5 to 10 knots. Seas around
2 feet. Wave Detail: Northeast 2 feet at 7 seconds.
.THURSDAY...Northwest winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: Northeast 2 feet at 7 seconds.
.THURSDAY NIGHT...Southeast winds around 5 knots, becoming
southwest after midnight. Seas around 2 feet in the evening, then
1 foot or less.
.FRIDAY THROUGH SATURDAY...Southwest winds 10 to 15 knots. Seas
2 to 3 feet.

$$