Coastal Waters Forecast
Issued by NWS Jacksonville, FL

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371
FZUS52 KJAX 091850
CWFJAX

Coastal Waters Forecast for Northeast Florida/Southeast Georgia
National Weather Service Jacksonville FL
250 PM EDT Sun Mar 9 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.

AMZ400-100915-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
250 PM EDT Sun Mar 9 2025

.SYNOPSIS...

The cold front will continue pushing southward becoming stationary
over the northeast Florida waters by late this afternoon.
Northeasterly winds will overspread our local waters from north
to south today, with speeds just below Small Craft Advisory levels
expected across the Georgia waters. Meanwhile, low pressure
moving eastward along the northern Gulf coast will slowly
strengthen as it approaches the Florida panhandle and Big Bend
coasts tonight, with the stalled frontal boundary lifting back
northward across the Georgia waters late tonight. Showers and
thunderstorms will spread over our region this morning, with
strong to isolated severe thunderstorms possible across our local
waters after midnight tonight. Strengthening low pressure will
cross our area on Monday morning, with gusty south-southwesterly
winds during the morning, shifting to westerly during the
afternoon and then northwesterly towards sunset. Gale conditions
will be in place over offshore waters Monday night along with
Small Craft Advisory conditions for nearshore waters, with winds
and seas diminishing Tuesday afternoon and evening as low pressure
accelerates towards Bermuda and weak high pressure builds along
the northern Gulf coast. High pressure will then migrate across
the Florida peninsula on Wednesday, moving offshore by Wednesday
night, with prevailing southerly winds developing locally through
Thursday.


.GULF STREAM...

The approximate location of the west wall of the Gulf Stream as of
Mar 08, 2025 at 1200 UTC...

 57 nautical miles east of Flagler Beach.
 66 nautical miles east of Saint Augustine Beach.
 82 nautical miles east of Jacksonville Beach.
 97 nautical miles east southeast of St Simons Island.

This data courtesy of the Naval Oceanographic Office.


$$

AMZ452-454-100915-
Coastal waters from Fernandina Beach to St. Augustine FL out
20 NM-
Coastal waters from St. Augustine to Flagler Beach FL out 20 NM-
250 PM EDT Sun Mar 9 2025

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

.TONIGHT...East winds 10 to 15 knots, becoming south after
midnight. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail:
Northeast 3 feet at 5 seconds and southeast 2 feet at 4 seconds.
Intracoastal waters a moderate chop. A chance of showers with a
slight chance of thunderstorms this evening, then showers likely
with a chance of thunderstorms after midnight.
.MONDAY...Southwest winds 15 to 20 knots, becoming west 20 to
25 knots in the afternoon. Seas 3 to 5 feet, occasionally to
6 feet. Wave Detail: Southwest 4 feet at 5 seconds and northeast
3 feet at 7 seconds. Intracoastal waters rough. Showers with a
chance of thunderstorms in the morning, then a slight chance of
showers in the afternoon.
.MONDAY NIGHT...Northwest winds 20 to 25 knots. Seas 4 to 6 feet,
occasionally to 8 feet. Wave Detail: Northwest 5 feet at
6 seconds and southeast 2 feet at 6 seconds. Intracoastal waters
rough. A slight chance of showers in the evening.
.TUESDAY...Northwest winds 15 to 20 knots, becoming north 10 to
15 knots in the afternoon. Seas 3 to 5 feet, occasionally to
6 feet. Wave Detail: North 5 feet at 6 seconds. Intracoastal
waters choppy.
.TUESDAY NIGHT...Southwest winds around 5 knots. Seas 2 to
4 feet, occasionally to 5 feet. Wave Detail: North 3 feet at
6 seconds and northeast 3 feet at 10 seconds. Intracoastal waters
smooth.
.WEDNESDAY AND WEDNESDAY NIGHT...Southwest winds 5 to 10 knots.
Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: Northeast
4 feet at 11 seconds and northeast 2 feet at 8 seconds.
Intracoastal waters light chop.
.THURSDAY THROUGH FRIDAY...Southeast winds 10 to 15 knots. Seas
2 to 3 feet. Intracoastal waters a moderate chop.

Winds and waves higher in and near thunderstorms.

$$

AMZ472-474-100915-
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-
250 PM EDT Sun Mar 9 2025

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

.TONIGHT...Southeast winds 10 to 15 knots, becoming south 15 to
20 knots after midnight. Seas 3 to 5 feet, occasionally to
6 feet. Wave Detail: North 4 feet at 7 seconds and southeast
3 feet at 4 seconds. A slight chance of thunderstorms. A chance
of showers this evening, then showers likely after midnight.
.MONDAY...Southwest winds 20 to 25 knots, becoming west 25 to
30 knots in the afternoon. Seas 5 to 7 feet, occasionally to
9 feet. Wave Detail: Southwest 5 feet at 5 seconds and northeast
3 feet at 7 seconds. Showers with a chance of thunderstorms in
the morning, then a chance of showers in the afternoon.
.MONDAY NIGHT...Northwest winds 25 to 30 knots with gusts up to
40 knots. Seas 6 to 9 feet, occasionally to 11 feet. Wave Detail:
West 8 feet at 6 seconds and south 3 feet at 6 seconds. A slight
chance of showers in the evening.
.TUESDAY...Northwest winds 20 to 25 knots with gusts up to
35 knots, diminishing to 15 to 20 knots in the afternoon. Seas
5 to 7 feet, occasionally to 9 feet. Wave Detail: North 7 feet at
7 seconds.
.TUESDAY NIGHT...Northwest winds 5 to 10 knots. Seas 4 to 6 feet,
occasionally to 8 feet. Wave Detail: Northeast 5 feet at
11 seconds and north 3 feet at 7 seconds.
.WEDNESDAY...Northwest winds 5 to 10 knots, becoming south in the
afternoon. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail:
Northeast 5 feet at 11 seconds and northeast 2 feet at 7 seconds.
.WEDNESDAY NIGHT...South winds 5 to 10 knots. Seas 3 to 5 feet,
occasionally to 6 feet.
.THURSDAY...South winds 5 to 10 knots. Seas 2 to 4 feet,
occasionally to 5 feet. A slight chance of showers through the
night.
.FRIDAY...Southeast winds 5 to 10 knots, increasing to 10 to
15 knots. Seas 3 to 5 feet, occasionally to 6 feet.

Winds and seas higher in and near thunderstorms.

$$

AMZ450-100915-
Coastal waters from Altamaha Sound to Fernandina Beach FL out
20 NM-
250 PM EDT Sun Mar 9 2025

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

.TONIGHT...Northeast winds 15 to 20 knots, becoming southeast
10 to 15 knots after midnight. Seas 3 to 5 feet, occasionally to
6 feet. Wave Detail: Northeast 4 feet at 6 seconds. Intracoastal
waters choppy. Showers. A slight chance of thunderstorms this
evening, then a chance of thunderstorms after midnight.
.MONDAY...Southwest winds around 15 knots, becoming west in the
afternoon. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail:
Northeast 3 feet at 6 seconds and south 3 feet at 6 seconds.
Intracoastal waters choppy. Showers with a chance of
thunderstorms in the morning, then a chance of showers in the
afternoon.
.MONDAY NIGHT...Northwest winds 20 to 25 knots. Seas 3 to 5 feet,
occasionally to 6 feet. Wave Detail: Northwest 4 feet at
5 seconds and southeast 2 feet at 6 seconds. Intracoastal waters
rough. A slight chance of showers in the evening.
.TUESDAY...Northwest winds 15 to 20 knots, becoming west 5 to
10 knots in the afternoon. Seas 2 to 4 feet, occasionally to
5 feet. Wave Detail: North 3 feet at 6 seconds. Intracoastal
waters choppy.
.TUESDAY NIGHT...West winds around 5 knots. Seas 2 to 3 feet.
Wave Detail: Northeast 3 feet at 9 seconds and north 2 feet at
5 seconds. Intracoastal waters smooth.
.WEDNESDAY AND WEDNESDAY NIGHT...Southwest winds 5 to 10 knots.
Seas 2 to 3 feet. Wave Detail: Northeast 3 feet at 9 seconds.
Intracoastal waters light chop.
.THURSDAY THROUGH FRIDAY...Southeast winds 10 to 15 knots. Seas
2 to 3 feet. Intracoastal waters a moderate chop.

Winds and waves higher in and near thunderstorms.

$$

AMZ470-100915-
Waters from Altamaha Sound GA to Fernandina Beach FL from 20 to
60 NM-
250 PM EDT Sun Mar 9 2025

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

.TONIGHT...East winds 15 to 20 knots, becoming southeast after
midnight. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail:
Northeast 5 feet at 7 seconds and southeast 3 feet at 4 seconds.
Showers. A slight chance of thunderstorms this evening, then a
chance of thunderstorms after midnight.
.MONDAY...Southwest winds 15 to 20 knots, becoming west 20 to
25 knots in the afternoon. Seas 4 to 6 feet, occasionally to
8 feet. Wave Detail: Southwest 4 feet at 5 seconds and northeast
3 feet at 6 seconds. Showers with a chance of thunderstorms in
the morning, then a chance of showers in the afternoon.
.MONDAY NIGHT...Northwest winds 25 to 30 knots. Seas 5 to 7 feet,
occasionally to 9 feet. Wave Detail: Northwest 7 feet at
6 seconds and south 3 feet at 6 seconds. A chance of showers in
the evening.
.TUESDAY...Northwest winds 20 to 25 knots, diminishing to 10 to
15 knots in the afternoon. Seas 4 to 6 feet, occasionally to
8 feet. Wave Detail: North 6 feet at 6 seconds.
.TUESDAY NIGHT...West winds 5 to 10 knots. Seas 2 to 4 feet,
occasionally to 5 feet. Wave Detail: Northeast 4 feet at
8 seconds.
.WEDNESDAY AND WEDNESDAY NIGHT...Southwest winds 5 to 10 knots.
Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: Northeast
4 feet at 10 seconds.
.THURSDAY...South winds 5 to 10 knots. Seas 2 to 3 feet. A slight
chance of showers in the evening.
.FRIDAY...Southeast winds 5 to 10 knots, increasing to 10 to
15 knots. Seas 2 to 4 feet, occasionally to 5 feet.

Winds and seas higher in and near thunderstorms.

$$