105
FZUS52 KJAX 060621
CWFJAX

Coastal Waters Forecast for Northeast Florida/Southeast Georgia
National Weather Service Jacksonville FL
221 AM EDT Sun Sep 6 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.

AMZ400-062100-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
221 AM EDT Sun Sep 6 2026

.SYNOPSIS...

High pressure will continue south of the local waters today as a
front approaches from the northeast. Strong thunderstorms are
possible this afternoon and evening as the front approaches. The
front will stall across north Florida Monday, then shifts south of
the waters Monday night into Tuesday as high pressure strengthens to
the northeast. A brief period of Small Craft Exercise Caution
conditions is possible mainly over the Georgia waters Tuesday as a
coastal trough develops offshore. The coastal trough weakens
Wednesday into Thursday. Friday into Saturday, high pressure extends
across south Florida with a return of westerly winds and the
afternoon east coast sea breeze nearshore.


.GULF STREAM...

The approximate location of the west wall of the Gulf Stream as of
Sep 05, 2026 at 0000 UTC...

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

This data derived from NCEP Global RTOFS model.


$$

AMZ450-452-454-062100-
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-
221 AM EDT Sun Sep 6 2026

.REST OF TONIGHT...West winds around 10 knots. Seas around
2 feet. Wave Detail: South 2 feet at 5 seconds and southeast
2 feet at 8 seconds. Intracoastal waters light chop.
.SUNDAY...West winds 5 to 10 knots, becoming south in the
afternoon. Seas around 2 feet. Wave Detail: Southwest 2 feet at
4 seconds. Intracoastal waters light chop. A chance of showers
and thunderstorms in the afternoon.
.SUNDAY NIGHT...Southwest winds 5 to 10 knots, becoming west
after midnight. Seas around 2 feet. Intracoastal waters light
chop. A chance of showers. A chance of thunderstorms, mainly in
the evening.
.MONDAY...Northwest winds around 5 knots, becoming east in the
afternoon. Seas around 2 feet. Wave Detail: East 2 feet at
9 seconds. Intracoastal waters light chop. A chance of showers
with a slight chance of thunderstorms in the morning, then
showers likely with a chance of thunderstorms in the afternoon.
.MONDAY NIGHT AND TUESDAY...East winds 5 to 10 knots. Seas 2 to
3 feet. Wave Detail: Northeast 3 feet at 7 seconds. Intracoastal
waters light chop. Showers likely with a chance of thunderstorms.
.TUESDAY NIGHT...East winds 5 to 10 knots. Seas around 3 feet.
Wave Detail: Northeast 3 feet at 7 seconds. Intracoastal waters
light chop. A chance of showers and thunderstorms, mainly in the
evening.
.WEDNESDAY THROUGH THURSDAY...Southwest winds 5 to 10 knots. Seas
2 to 4 feet, occasionally to 5 feet. Intracoastal waters light
chop. A chance of showers and thunderstorms.

Winds and waves higher in and near thunderstorms.

$$

AMZ470-472-474-062100-
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-
221 AM EDT Sun Sep 6 2026

.REST OF TONIGHT...West winds 10 to 15 knots. Seas 2 to 3 feet.
Wave Detail: Southwest 2 feet at 4 seconds and east 2 feet at
8 seconds. A slight chance of showers and thunderstorms.
.SUNDAY...West winds 5 to 10 knots, becoming southwest in the
afternoon. Seas 2 to 3 feet. Wave Detail: West 2 feet at
4 seconds. A slight chance of showers in the afternoon.
.SUNDAY NIGHT...Southwest winds 5 to 10 knots, becoming west
after midnight. Seas around 2 feet. Wave Detail: Southeast 2 feet
at 9 seconds. A chance of showers. A chance of thunderstorms,
mainly in the evening.
.MONDAY...West winds 5 to 10 knots, becoming east in the
afternoon. Seas around 2 feet. Wave Detail: East 2 feet at
9 seconds. A chance of thunderstorms. A chance of showers in the
morning, then showers likely in the afternoon.
.MONDAY NIGHT AND TUESDAY...East winds 5 to 10 knots. Seas 2 to
4 feet, occasionally to 5 feet. Wave Detail: Northeast 4 feet at
7 seconds. Showers likely with a chance of thunderstorms.
.TUESDAY NIGHT...Southeast winds 5 to 10 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Wave Detail: Northeast 4 feet at
7 seconds. A chance of showers. A chance of thunderstorms, mainly
in the evening.
.WEDNESDAY THROUGH THURSDAY...Southwest winds 5 to 10 knots. Seas
3 to 5 feet, occasionally to 6 feet. A chance of showers and
thunderstorms.

Winds and seas higher in and near thunderstorms.

$$