477 
FZUS52 KJAX 232119
CWFJAX

Coastal Waters Forecast for Northeast Florida/Southeast Georgia
National Weather Service Jacksonville FL
519 PM EDT Thu Apr 23 2020

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.

AMZ400-240530-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
519 PM EDT Thu Apr 23 2020

.SYNOPSIS...
A strong cold front traversing the southeastern states will 
decelerate as it moves through southeast Georgia overnight and
will stall just northwest of our local waters on Friday night and
Saturday. Widespread showers and thunderstorms will continue over
our local waters through early Friday evening, with strong to
severe thunderstorms possible after midnight tonight through
Friday morning for the northeast Florida waters. Another low
pressure center developing over northern Texas on Friday morning
will progress northeastward through the Tennessee and Ohio
Valleys on Saturday, pushing another strong cold front through our
waters on Saturday evening. Showers and thunderstorms may develop 
ahead of this front on Saturday afternoon in the northeast Florida
waters. High pressure will build over the Tennessee Valley in the
wake of this front on Sunday night and will sink southward over
our local waters by Monday evening.


.GULF STREAM...

The approximate location of the west wall of the Gulf Stream as of
Apr 23, 2020 at 1200 UTC...

 62 nautical miles east of Flagler Beach.
 65 nautical miles east of Saint Augustine Beach.
 77 nautical miles east of Jacksonville Beach.
 78 nautical miles east of St Simons Island.

This data courtesy of the Naval Oceanographic Office.


$$

AMZ450-452-454-240530-
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-
519 PM EDT Thu Apr 23 2020

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 PM EDT THIS EVENING...

.TONIGHT...South southwest winds 20 knots, decreasing to 15 knots
by midnight. Seas 4 to 6 feet with occasional seas up to 8 feet. 
Dominant period 7 seconds. Inland waters becoming a moderate 
chop. Showers and thunderstorms.
.FRIDAY...Southwest winds 15 to 20 knots. Seas 3 to 4 feet. 
Dominant period 7 seconds. Inland waters choppy. Showers and 
thunderstorms likely. 
.FRIDAY NIGHT...Southwest winds 10 to 15 knots. Seas 2 to 4 feet.
Dominant period 7 seconds. Inland waters a light chop. A chance of
showers and a slight chance of thunderstorms during the early
evening.
.SATURDAY...South southwest winds 15 knots. Seas 2 to 3 feet. 
Dominant period 7 seconds. Inland waters a moderate chop. A 
chance of showers and thunderstorms during the afternoon. 
.SATURDAY NIGHT...Southwest winds 15 knots. Seas 2 to 3 feet. 
Dominant period 7 seconds. Inland waters a moderate chop. 
.SUNDAY...West winds 10 knots. Seas 2 to 3 feet. Dominant period 
7 seconds. Inland waters a light chop. 
.SUNDAY NIGHT...Northwest winds 10 to 15 knots. Seas 2 to 4 feet.
.MONDAY...North winds 10 to 15 knots. Seas 2 to 3 feet. 
.MONDAY NIGHT...North northeast winds 10 knots. Seas 2 to 3 feet.
.TUESDAY...Northeast winds 10 knots, becoming east southeast in 
the afternoon. Seas 2 to 3 feet. 

$$

AMZ470-472-474-240530-
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-
519 PM EDT Thu Apr 23 2020

...SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY MORNING...

.TONIGHT...South southwest winds 20 to 25 knots with occasional
gusts to Gale Force possible. Seas 6 to 9 feet with occasional 
seas up to 11 feet, subsiding to 5 to 7 feet with occasional seas
up to 9 feet after midnight. Dominant period 7 seconds. Showers 
and thunderstorms. 
.FRIDAY...Southwest winds 15 to 20 knots. Seas 4 to 6 feet with 
occasional seas up to 8 feet. Dominant period 7 seconds. Showers 
and thunderstorms likely. 
.FRIDAY NIGHT...West southwest winds 15 to 20 knots. Seas 3 to 5 
feet with occasional seas up to 6 feet. Dominant period 7 seconds.
A chance of showers and a slight chance of thunderstorms during
the evening.
.SATURDAY...South southwest winds 15 knots. Seas 2 to 4 feet. 
Dominant period 7 seconds. A chance of showers and a slight chance
of thunderstorms during the afternoon. 
.SATURDAY NIGHT...Southwest winds 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 7 seconds. A slight
chance of showers and thunderstorms. 
.SUNDAY...West winds 10 to 15 knots. Seas 2 to 4 feet. Dominant
period 7 seconds. A slight chance of showers. 
.SUNDAY NIGHT...Northwest winds 15 to 20 knots. Seas 3 to 5 feet
with occasional seas up to 6 feet. 
.MONDAY...North winds 15 knots. Seas 2 to 4 feet. 
.MONDAY NIGHT...North northeast winds 10 knots. Seas 2 to 3 feet.
.TUESDAY...Northeast winds 10 knots, becoming east southeast in 
the afternoon. Seas 2 to 3 feet. 

$$