Coastal Waters Forecast
Issued by NWS Jacksonville, FL

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FZUS52 KJAX 181756
CWFJAX

Coastal Waters Forecast for Northeast Florida/Southeast Georgia
National Weather Service Jacksonville FL
156 PM EDT Fri Apr 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.

AMZ400-190915-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
156 PM EDT Fri Apr 18 2025

.SYNOPSIS...

A stagnant ridge of high pressure will remain stretched across
the region this weekend, continuing southeasterly flow across the
local waters. As the high gradually weakens this weekend, so will
the winds. Next week, a front will stall to the north and local
winds will be driven by the sea breeze each afternoon.

.GULF STREAM...

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

 61 nautical miles east southeast of Flagler Beach.
 69 nautical miles east northeast of Saint Augustine Beach.
 75 nautical miles east of Jacksonville Beach.
 88 nautical miles east of St Simons Island.

This data courtesy of the Naval Oceanographic Office.

$$

AMZ450-452-454-190915-
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-
156 PM EDT Fri Apr 18 2025

.TONIGHT...Southeast winds around 15 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Wave Detail: Southeast 4 feet at 5
seconds. Intracoastal waters a moderate chop. Slight chance of
showers this evening.
.SATURDAY...Southeast winds 10 to 15 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Wave Detail: Southeast 3 feet at
7 seconds. Intracoastal waters a moderate chop.
.SATURDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to
4 feet, occasionally to 5 feet. Wave Detail: Southeast 4 feet at
7 seconds. Intracoastal waters a moderate chop.
.SUNDAY...Southeast winds 10 to 15 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Wave Detail: Southeast 4 feet at
8 seconds. Intracoastal waters a moderate chop.
.SUNDAY NIGHT AND MONDAY...Southeast winds 10 to 15 knots. Seas
3 to 4 feet, occasionally to 5 feet. Wave Detail: Southeast
4 feet at 8 seconds. Intracoastal waters a moderate chop.
.MONDAY NIGHT...Southeast winds 10 to 15 knots, becoming south
5 to 10 knots after midnight. Seas 3 to 4 feet, occasionally to
5 feet. Wave Detail: Southeast 4 feet at 8 seconds. Intracoastal
waters a moderate chop.
.TUESDAY THROUGH WEDNESDAY...Southeast winds 10 to 15 knots. Seas
2 to 4 feet, occasionally to 5 feet. Intracoastal waters a
moderate chop.

$$

AMZ470-472-474-190915-
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-
156 PM EDT Fri Apr 18 2025

.TONIGHT...Southeast winds around 15 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Wave Detail: Southeast 4 feet at 6
seconds. Slight chance of showers this evening.
.SATURDAY...Southeast winds 10 to 15 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Wave Detail: Southeast 4 feet at
7 seconds.
.SATURDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to
5 feet, occasionally to 6 feet. Wave Detail: Southeast 4 feet at
7 seconds.
.SUNDAY...Southeast winds 10 to 15 knots. Seas 3 to 5 feet,
occasionally to 6 feet. Wave Detail: Southeast 4 feet at
8 seconds.
.SUNDAY NIGHT THROUGH MONDAY NIGHT...South winds 10 to 15 knots.
Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: Southeast
4 feet at 8 seconds and east 2 feet at 8 seconds.
.TUESDAY THROUGH WEDNESDAY...Southeast winds 10 to 15 knots. Seas
3 to 4 feet, occasionally to 5 feet. Wave Detail: Southeast
4 feet at 8 seconds and southeast 2 feet at 4 seconds.

$$