686
FZUS52 KJAX 081827
CWFJAX

Coastal Waters Forecast for Northeast Florida/Southeast Georgia
National Weather Service Jacksonville FL
227 PM EDT Sat Aug 8 2026

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.

AMZ400-090900-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
227 PM EDT Sat Aug 8 2026

.SYNOPSIS...

Troughing over our local waters this afternoon will lift northward
towards the Carolina coast as Atlantic high pressure centered near
Bermuda builds westward towards the Florida peninsula. Widespread
showers and thunderstorms are expected through late this afternoon,
with strong to isolated severe storms containing gusty winds,
frequent lightning strikes, and waterspouts possible. Elevated seas
this afternoon will then gradually diminish tonight and Sunday.
Atlantic high pressure will briefly build northward across the
northeast Florida waters on Sunday and Monday before this feature
weakens while sinking southward by midweek as troughing develops
over the southeastern states. Coverage of showers and thunderstorms
will gradually decrease through Monday across our local waters, with
unseasonably dry conditions then forecast for much of next week as
southwesterly winds prevail.


.GULF STREAM...

The approximate location of the west wall of the Gulf Stream as of
Aug 08, 2026 at 0000 UTC...

 46 nautical miles east of Flagler Beach.
 53 nautical miles east of Saint Augustine Beach.
 60 nautical miles east southeast of Jacksonville Beach.
 71 nautical miles east southeast of St Simons Island.

This data derived from NCEP Global RTOFS model.


$$

AMZ450-452-454-090900-
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-
227 PM EDT Sat Aug 8 2026

.REST OF TODAY...East winds 10 to 15 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Wave Detail: East 4 feet at 8 seconds.
Intracoastal waters a moderate chop. A chance of showers and
thunderstorms.
.TONIGHT...Southeast winds 10 to 15 knots, becoming south 5 to
10 knots after midnight. Seas 3 to 4 feet, occasionally to
5 feet. Wave Detail: East 4 feet at 8 seconds. Intracoastal
waters a moderate chop. A slight chance of showers and
thunderstorms after midnight.
.SUNDAY...South winds 5 to 10 knots, becoming southeast 10 to
15 knots in the afternoon. Seas 2 to 3 feet. Wave Detail: East
3 feet at 8 seconds. Intracoastal waters a moderate chop. A
slight chance of showers and thunderstorms in the afternoon.
.SUNDAY NIGHT...South winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 3 feet at 8 seconds. Intracoastal waters light
chop.
.MONDAY...South winds around 5 knots, becoming southeast 10 to
15 knots in the afternoon. Seas 2 to 3 feet. Wave Detail:
Southeast 2 feet at 3 seconds and east 2 feet at 7 seconds.
Intracoastal waters a moderate chop.
.MONDAY NIGHT...South winds 10 to 15 knots, becoming southwest
5 to 10 knots after midnight. Seas 2 to 3 feet. Wave Detail:
Southeast 2 feet at 4 seconds and southeast 2 feet at 7 seconds.
Intracoastal waters a moderate chop.
.TUESDAY...Southwest winds 10 to 15 knots. Seas 2 to 3 feet.
Intracoastal waters a moderate chop.
.WEDNESDAY...Southwest winds 10 to 15 knots. Seas 2 to 3 feet.
Intracoastal waters a moderate chop. A slight chance of showers
and thunderstorms through the night.

Winds and waves higher in and near thunderstorms.

$$

AMZ470-472-474-090900-
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-
227 PM EDT Sat Aug 8 2026

.REST OF TODAY...Southeast winds 10 to 15 knots. Seas around
4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at
8 seconds. A chance of showers and thunderstorms.
.TONIGHT...South winds 10 to 15 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Wave Detail: East 4 feet at 8 seconds. A
slight chance of showers and thunderstorms after midnight.
.SUNDAY...South winds 5 to 10 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Wave Detail: East 4 feet at 8 seconds.
.SUNDAY NIGHT...South winds 5 to 10 knots. Seas around 3 feet.
Wave Detail: Southeast 3 feet at 8 seconds.
.MONDAY AND MONDAY NIGHT...Southwest winds 5 to 10 knots. Seas
2 to 3 feet. Wave Detail: Southeast 3 feet at 7 seconds and south
2 feet at 4 seconds.
.TUESDAY...Southwest winds 5 to 10 knots, increasing to 10 to
15 knots. Seas 2 to 3 feet. Wave Detail: Southwest 2 feet at
4 seconds and southeast 2 feet at 7 seconds.
.WEDNESDAY...Southwest winds 10 to 15 knots. Seas 2 to 3 feet. A
slight chance of showers and thunderstorms.

Winds and seas higher in and near thunderstorms.

$$