National Weather Service Weather Forecast Office

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

000
FZUS52 KJAX 110751
CWFJAX

Coastal Waters Forecast for Northeast Florida/Southeast Georgia
National Weather Service Jacksonville FL
351 AM EDT Thu Apr 11 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.

AMZ400-112115-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
351 AM EDT Thu Apr 11 2024

.SYNOPSIS...

The pressure gradient will tighten ahead of an approaching strong
cold this morning will lead to Advisory level conditions nearshore
and Gale conditions offshore. The strong cold front will cross
the waters through this afternoon with strong to severe thunderstorms
capable of gusty winds and waterspouts. Behind the line of storms
skies will clear tonight with continued elevated winds and seas
as high pressure builds in from the west. Winds and seas will
diminish by Saturday after the passage of a dry cold front Friday
night. The high will build over the waters Sunday and then shift
east of the waters early next week.


.GULF STREAM...

The approximate location of the west wall of the Gulf Stream as of
Apr 09, 2024 at 1200 UTC...

 69 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.


$$

AMZ450-452-454-112115-
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-
351 AM EDT Thu Apr 11 2024

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...

.TODAY...South winds 20 to 25 knots with gusts up to 35 knots.
Seas 6 to 8 feet with a dominant period 7 seconds. Intracoastal
waters rough. Thunderstorms likely. A chance of showers in the
morning, then showers in the afternoon.
.TONIGHT...West winds around 20 knots. Seas 4 to 6 feet with a
dominant period 8 seconds. Intracoastal waters choppy.
.FRIDAY...West winds 10 to 15 knots. Seas 3 to 5 feet with a
dominant period 8 seconds. Intracoastal waters a moderate chop.
.FRIDAY NIGHT...Northwest winds 10 to 15 knots. Seas 2 to 4 feet
with a dominant period 8 seconds. Intracoastal waters a moderate
chop.
.SATURDAY...North winds 10 to 15 knots, becoming northeast 5 to
10 knots in the afternoon. Seas 2 to 4 feet with a dominant
period 7 seconds. Intracoastal waters a moderate chop.
.SATURDAY NIGHT...South winds 5 to 10 knots, becoming west after
midnight. Seas around 2 feet with a dominant period 8 seconds.
Intracoastal waters light chop.
.SUNDAY...Southwest winds around 5 knots, becoming southeast in
the afternoon. Seas around 2 feet.
.SUNDAY NIGHT...South winds 5 to 10 knots. Seas 2 to 3 feet.
.MONDAY...South winds 5 to 10 knots, becoming southeast in the
afternoon. Seas 2 to 3 feet.
.MONDAY NIGHT...South winds 10 to 15 knots, diminishing to 5 to
10 knots after midnight. Seas 2 to 3 feet.

Winds and waves higher in and near thunderstorms.

$$

AMZ470-472-474-112115-
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-
351 AM EDT Thu Apr 11 2024

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 AM EDT THIS MORNING...
...GALE WARNING IN EFFECT FROM 8 AM EDT THIS MORNING THROUGH LATE
TONIGHT...

.TODAY...South winds 25 to 30 knots with gusts up to 40 knots.
Seas 7 to 10 feet with a dominant period 7 seconds. A chance of
showers and thunderstorms in the morning, then showers with
thunderstorms likely in the afternoon.
.TONIGHT...West winds 20 to 25 knots with gusts up to 35 knots.
Seas 6 to 8 feet with a dominant period 8 seconds.
.FRIDAY...West winds 15 to 20 knots, diminishing to 10 to
15 knots in the afternoon. Seas 4 to 6 feet with a dominant
period 8 seconds.
.FRIDAY NIGHT...Northwest winds 15 to 20 knots. Seas 3 to 5 feet
with a dominant period 8 seconds.
.SATURDAY...Northwest winds 15 to 20 knots, diminishing to 5 to
10 knots in the afternoon. Seas 3 to 5 feet with a dominant
period 5 seconds.
.SATURDAY NIGHT...Southwest winds 5 to 10 knots, becoming
northwest after midnight. Seas 2 to 3 feet with a dominant period
8 seconds.
.SUNDAY...West winds around 5 knots, becoming south in the
afternoon. Seas 2 to 3 feet.
.SUNDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet.
.MONDAY...Southwest winds 5 to 10 knots, becoming south 10 to
15 knots in the afternoon. Seas 2 to 3 feet.
.MONDAY NIGHT...South winds 10 to 15 knots. Seas around 3 feet.

Winds and seas higher in and near thunderstorms.

$$