National Weather Service Weather Forecast Office

• Home
• Site Map
• News
• Organization
• Search for: NWS All NOAA 

000
FZUS52 KJAX 180545
CWFJAX

Coastal Waters Forecast for Northeast Florida/Southeast Georgia
National Weather Service Jacksonville FL
145 AM EDT Thu Apr 18 2024

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.

AMZ400-182115-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
145 AM EDT Thu Apr 18 2024

.SYNOPSIS...

High pressure ridge axis will continue over the local waters
today, then sink southward on Friday. A cold front will move
southeast to near the GA/FL line on Saturday and stall through
the rest of the weekend. This front will then push southeast
through the local waters on Monday.

.GULF STREAM...

The approximate location of the west wall of the Gulf Stream as of
Apr 13, 2024 at 1200 UTC...

 69 nautical miles east northeast of Flagler Beach.
 73 nautical miles east of Saint Augustine Beach.
 85 nautical miles east southeast of Jacksonville Beach.
103 nautical miles east southeast of St Simons Island.

This data courtesy of the Naval Oceanographic Office.

$$

AMZ450-452-454-182115-
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-
145 AM EDT Thu Apr 18 2024

.TODAY...South winds around 10 knots, becoming southeast in the
afternoon. Seas 2 to 3 feet with a dominant period 9 seconds.
Intracoastal waters a moderate chop.
.TONIGHT...South winds 10 to 15 knots, becoming southwest 5 to
10 knots after midnight. Seas 2 to 3 feet with a dominant period
9 seconds. Intracoastal waters a moderate chop.
.FRIDAY...West winds 5 to 10 knots, becoming southeast 10 to
15 knots in the afternoon. Seas 2 to 3 feet with a dominant
period 8 seconds. Intracoastal waters a moderate chop.
.FRIDAY NIGHT...South winds 10 to 15 knots, becoming southwest
5 to 10 knots after midnight. Seas 2 to 3 feet with a dominant
period 8 seconds. Intracoastal waters a moderate chop.
.SATURDAY...Southwest winds 5 to 10 knots, becoming south in the
afternoon. Seas 2 to 3 feet with a dominant period 8 seconds.
Intracoastal waters light chop. A slight chance of showers and
thunderstorms in the afternoon.
.SATURDAY NIGHT...Southwest winds 5 to 10 knots, becoming west
after midnight. Seas 2 to 3 feet with a dominant period
8 seconds. Intracoastal waters light chop.
.SUNDAY...Southwest winds 5 to 10 knots, becoming south in the
afternoon. Seas 2 to 3 feet. A slight chance of rain and
thunderstorms in the afternoon.
.SUNDAY NIGHT...West winds 10 to 15 knots. Seas 2 to 3 feet. A
chance of showers with a slight chance of thunderstorms.
.MONDAY...Northwest winds around 10 knots, becoming north in the
afternoon. Seas 2 to 3 feet. A chance of showers with a slight
chance of thunderstorms.
.MONDAY NIGHT...North winds 10 to 15 knots. Seas 2 to 3 feet.

Winds and waves higher in and near thunderstorms.

$$

AMZ470-472-474-182115-
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-
145 AM EDT Thu Apr 18 2024

.TODAY...South winds 10 to 15 knots. Seas 3 to 4 feet with a
dominant period 9 seconds.
.TONIGHT...South winds 10 to 15 knots. Seas 3 to 4 feet with a
dominant period 8 seconds.
.FRIDAY...Southwest winds 5 to 10 knots, becoming south in the
afternoon. Seas around 3 feet with a dominant period 8 seconds.
.FRIDAY NIGHT...Southwest winds 10 to 15 knots. Seas 3 to 4 feet
with a dominant period 8 seconds.
.SATURDAY...Southwest winds 5 to 10 knots, becoming south in the
afternoon. Seas around 3 feet with a dominant period 8 seconds.
.SATURDAY NIGHT...South winds 10 to 15 knots, becoming west after
midnight. Seas 3 to 4 feet with a dominant period 8 seconds.
.SUNDAY...West winds 5 to 10 knots, becoming south 10 to 15 knots
in the afternoon. Seas around 3 feet. A slight chance of rain in
the afternoon.
.SUNDAY NIGHT...Southwest winds 10 to 15 knots. Seas 3 to 4 feet.
A chance of showers. A slight chance of thunderstorms in the
evening, then a chance of thunderstorms after midnight.
.MONDAY...Northwest winds 10 to 15 knots, becoming north in the
afternoon. Seas 3 to 4 feet. A chance of showers. A slight chance
of thunderstorms in the morning, then a chance of thunderstorms
in the afternoon.
.MONDAY NIGHT...North winds 10 to 15 knots. Seas 3 to 4 feet. A
slight chance of showers and thunderstorms in the evening.

Winds and seas higher in and near thunderstorms.

$$