883
FZUS52 KJAX 161115
CWFJAX

Coastal Waters Forecast for Northeast Florida/Southeast Georgia
National Weather Service Jacksonville FL
715 AM EDT Sun Aug 16 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.

AMZ400-170215-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
715 AM EDT Sun Aug 16 2026

.SYNOPSIS...

Atlantic high pressure will continue to extend its axis westward
across the Florida peninsula today, creating a prevailing westerly
wind pattern across our local waters. Winds will become onshore
across the near shore waters early this afternoon as the sea breeze
progresses slowly inland. Southerly winds will then surge this
evening, but speeds should remain below Caution levels. Isolated to
widely scattered late afternoon and evening thunderstorms will be
possible today, mainly for the waters north of St. Augustine. A
frontal boundary will then push into the southeastern states by
Monday afternoon, with this feature stalling just north of the
Georgia waters by midweek. Chances for mainly afternoon and evening
showers and thunderstorms will increase across our local waters
during the work week. Southwest to westerly winds will continue to
prevail, with a westerly evening wind surge forecast on Monday that
may bring speeds briefly up to Caution levels.


.GULF STREAM...

The approximate location of the west wall of the Gulf Stream as of
Aug 15, 2026 at 0000 UTC...

 50 nautical miles east of Flagler Beach.
 49 nautical miles east of Saint Augustine Beach.
 56 nautical miles east southeast of Jacksonville Beach.
 68 nautical miles east southeast of St Simons Island.

This data derived from NCEP Global RTOFS model.


$$

AMZ450-452-454-170215-
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-
715 AM EDT Sun Aug 16 2026

.TODAY...West winds 5 to 10 knots, becoming southeast this
afternoon. Seas around 2 feet. Wave Detail: South 2 feet at
4 seconds and southeast 2 feet at 8 seconds. Intracoastal waters
light chop. A slight chance of showers and thunderstorms this
afternoon.
.TONIGHT...Southwest winds around 10 knots. Seas 2 to 3 feet.
Wave Detail: South 2 feet at 4 seconds and southeast 2 feet at
8 seconds. Intracoastal waters light chop. A slight chance of
showers and thunderstorms in the evening.
.MONDAY...West winds 5 to 10 knots, becoming south 10 to 15 knots
in the afternoon. Seas 2 to 3 feet. Wave Detail: Southwest 2 feet
at 3 seconds and southeast 2 feet at 8 seconds. Intracoastal
waters a moderate chop. A slight chance of showers and
thunderstorms in the morning, then a chance of showers and
thunderstorms in the afternoon.
.MONDAY NIGHT...Southwest 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. Intracoastal waters a moderate chop. A slight chance
of showers in the evening.
.TUESDAY...West winds 10 to 15 knots, becoming south 5 to
10 knots in the afternoon. Seas 2 to 3 feet. Wave Detail: West
2 feet at 3 seconds and east 2 feet at 8 seconds. Intracoastal
waters a moderate chop. A slight chance of showers and
thunderstorms in the afternoon.
.TUESDAY NIGHT...Southwest winds 10 to 15 knots. Seas 2 to
3 feet. Wave Detail: South 2 feet at 4 seconds and east 2 feet at
9 seconds. Intracoastal waters a moderate chop. A slight chance
of showers and thunderstorms in the evening.
.WEDNESDAY...Southwest winds 5 to 10 knots. Seas 2 to 3 feet.
Intracoastal waters light chop. A chance of showers and
thunderstorms in the afternoon. A slight chance of showers and
thunderstorms in the evening.
.THURSDAY...South winds 5 to 10 knots. Seas around 2 feet.
Intracoastal waters light chop. A slight chance of showers and
thunderstorms through the night.

Winds and waves higher in and near thunderstorms.

$$

AMZ470-472-474-170215-
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-
715 AM EDT Sun Aug 16 2026

.TODAY...West winds 5 to 10 knots, becoming south this afternoon.
Seas 2 to 3 feet. Wave Detail: Southwest 2 feet at 4 seconds and
southeast 2 feet at 9 seconds.
.TONIGHT...Southwest winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 3 feet at 8 seconds and south 2 feet at
4 seconds. A slight chance of showers and thunderstorms.
.MONDAY...West winds 10 to 15 knots, becoming southwest in the
afternoon. Seas 2 to 3 feet. Wave Detail: West 2 feet at
4 seconds and southeast 2 feet at 8 seconds. A slight chance of
showers and thunderstorms.
.MONDAY NIGHT...Southwest winds 15 to 20 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Wave Detail: Southwest 3 feet at
4 seconds and southeast 2 feet at 8 seconds. A slight chance of
showers in the evening.
.TUESDAY AND TUESDAY NIGHT...West winds 10 to 15 knots. Seas 2 to
4 feet, occasionally to 5 feet. Wave Detail: West 3 feet at
4 seconds and southeast 2 feet at 8 seconds.
.WEDNESDAY THROUGH THURSDAY...South winds 10 to 15 knots. Seas
2 to 3 feet. Wave Detail: Southwest 2 feet at 4 seconds and east
2 feet at 10 seconds. A slight chance of showers and
thunderstorms.

Winds and seas higher in and near thunderstorms.

$$