Coastal Waters Forecast
Issued by NWS Jacksonville, FL

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29
000
FZUS52 KJAX 220004
CWFJAX

Coastal Waters Forecast for Northeast Florida/Southeast Georgia
National Weather Service Jacksonville FL
804 PM EDT Sun Apr 21 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.

AMZ400-220930-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
804 PM EDT Sun Apr 21 2024

.SYNOPSIS...
A cold front will move across the coastal waters tonight bringing
showers and storms. Some storms this evening may produce gusty
winds. A surge of northerly winds is expected behind the front
beginning late tonight and will lead to small craft advisory
conditions developing for much of the local waters on Monday.
Winds will decrease and turn onshore Tuesday into Wednesday as
high pressure then builds across area waters once again. Another
cool front will pass through the waters during the latter part of
next week with onshore winds returning by next weekend.

.GULF STREAM...

The approximate location of the west wall of the Gulf Stream as of
Apr 20, 2024 at 1200 UTC...

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

This data courtesy of the Naval Oceanographic Office.


$$

AMZ450-220930-
Coastal waters from Altamaha Sound to Fernandina Beach FL out
20 NM-
804 PM EDT Sun Apr 21 2024

.REST OF TONIGHT...Northwest winds 10 to 15 knots, becoming north
after midnight. Seas 2 to 4 feet with a dominant period
7 seconds. Intracoastal waters a moderate chop. Showers likely
with a slight chance of thunderstorms early.
.MONDAY...North winds 15 to 20 knots. Seas 3 to 5 feet with a
dominant period 6 seconds. Intracoastal waters choppy.
.MONDAY NIGHT...Northeast winds 10 to 15 knots. Seas 3 to 5 feet
with a dominant period 9 seconds. Intracoastal waters a moderate
chop.
.TUESDAY...East winds around 10 knots. Seas 3 to 5 feet with a
dominant period 10 seconds. Intracoastal waters light chop.
.TUESDAY NIGHT...Southeast winds 5 to 10 knots, becoming south
after midnight. Seas 3 to 4 feet with a dominant period
9 seconds. Intracoastal waters light chop.
.WEDNESDAY...South winds 5 to 10 knots. Seas around 3 feet with a
dominant period 9 seconds. Intracoastal waters light chop.
.WEDNESDAY NIGHT...South winds 10 to 15 knots. Seas 3 to 4 feet
with a dominant period 9 seconds. Intracoastal waters a moderate
chop.
.THURSDAY...South winds 5 to 10 knots, becoming southeast in the
afternoon. Seas 2 to 3 feet.
.THURSDAY NIGHT...Southeast winds around 10 knots. Seas 2 to
3 feet.
.FRIDAY...East winds 10 to 15 knots. Seas 2 to 3 feet.
.FRIDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to 4 feet.

Winds and waves higher in and near thunderstorms.

$$

AMZ452-454-220930-
Coastal waters from Fernandina Beach to St. Augustine FL out
20 NM-
Coastal waters from St. Augustine to Flagler Beach FL out 20 NM-
804 PM EDT Sun Apr 21 2024

...SMALL CRAFT ADVISORY IN EFFECT FROM MONDAY MORNING THROUGH
MONDAY EVENING...

.REST OF TONIGHT...West winds 10 to 15 knots, becoming north
after midnight. Seas 2 to 4 feet with a dominant period
7 seconds. Intracoastal waters a moderate chop. A chance of
showers with a slight chance of thunderstorms early.
.MONDAY...North winds 15 to 20 knots. Seas 3 to 5 feet with a
dominant period 5 seconds. Intracoastal waters choppy. A slight
chance of showers in the morning.
.MONDAY NIGHT...Northeast winds 15 to 20 knots, diminishing to
10 to 15 knots after midnight. Seas 4 to 6 feet with a dominant
period 6 seconds. Intracoastal waters choppy.
.TUESDAY...Northeast winds 10 to 15 knots, diminishing to 5 to
10 knots in the afternoon. Seas 4 to 6 feet with a dominant
period 9 seconds. Intracoastal waters a moderate chop.
.TUESDAY NIGHT...Southeast winds 5 to 10 knots, becoming south
after midnight. Seas 3 to 5 feet with a dominant period
9 seconds. Intracoastal waters light chop.
.WEDNESDAY...Southeast winds 5 to 10 knots. Seas 3 to 4 feet with
a dominant period 9 seconds. Intracoastal waters light chop.
.WEDNESDAY NIGHT...South winds 10 to 15 knots, diminishing to
5 to 10 knots after midnight. Seas 3 to 4 feet with a dominant
period 9 seconds. Intracoastal waters a moderate chop.
.THURSDAY...South winds 5 to 10 knots, becoming southeast in the
afternoon. Seas around 3 feet.
.THURSDAY NIGHT...Southeast winds 10 to 15 knots, diminishing to
5 to 10 knots after midnight. Seas 2 to 3 feet.
.FRIDAY...Southeast winds 5 to 10 knots, becoming east 10 to
15 knots in the afternoon. Seas 2 to 3 feet.
.FRIDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to 4 feet.

Winds and waves higher in and near thunderstorms.

$$

AMZ470-472-474-220930-
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-
804 PM EDT Sun Apr 21 2024

...SMALL CRAFT ADVISORY IN EFFECT FROM MONDAY MORNING THROUGH
TUESDAY AFTERNOON...

.REST OF TONIGHT...West winds 10 to 15 knots, becoming northwest
15 to 20 knots. Seas 3 to 4 feet with a dominant period
7 seconds. A chance of showers with a slight chance of
thunderstorms early.
.MONDAY...North winds 15 to 20 knots, increasing to 20 to
25 knots in the afternoon. Seas 4 to 5 feet with a dominant
period 5 seconds, building to 5 to 7 feet with a dominant period
5 seconds in the afternoon. A slight chance of showers.
.MONDAY NIGHT...Northeast winds 15 to 20 knots, diminishing to
10 to 15 knots after midnight. Seas 5 to 7 feet with a dominant
period 9 seconds.
.TUESDAY...Northeast winds 10 to 15 knots, diminishing to 5 to
10 knots in the afternoon. Seas 5 to 7 feet with a dominant
period 9 seconds.
.TUESDAY NIGHT...Southeast winds 5 to 10 knots, becoming south
after midnight. Seas 4 to 5 feet with a dominant period
9 seconds.
.WEDNESDAY...South winds around 5 knots, increasing to 5 to
10 knots in the afternoon. Seas 4 to 5 feet with a dominant
period 9 seconds.
.WEDNESDAY NIGHT...South winds 10 to 15 knots. Seas around 4 feet
with a dominant period 9 seconds.
.THURSDAY...South winds 5 to 10 knots, becoming southeast in the
afternoon. Seas 3 to 4 feet.
.THURSDAY NIGHT...Southeast winds around 10 knots. Seas around
3 feet.
.FRIDAY...Southeast winds 10 to 15 knots. Seas 2 to 3 feet.
.FRIDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to 4 feet.

Winds and seas higher in and near thunderstorms.

$$


USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.