535
FZUS52 KKEY 050826 AAC
CWFKEY

Coastal Waters Forecast for the Florida Keys...UPDATED
National Weather Service Key West FL
426 AM EDT Fri Jun 5 2026

Florida Bay, Hawk Channel and Straits of Florida from Ocean Reef
to south of Dry Tortugas, and the extreme southeastern Gulf of
America, including The Florida Keys National Marine Sanctuary

Seas are given as significant wave height, which is the average
height of the highest 1/3 of the waves. Individual waves may be
more than twice the significant wave height.

Wave Detail will include details about the period and direction
of origin for the highest energy waves. Long-period swells coming
from a different direction than the wind would be included in the
Wave Detail.

GMZ005-052030-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
426 AM EDT Fri Jun 5 2026

.SYNOPSIS...An expansive eastern United States surface high will
move off the Carolina Coast today and then push out into the
Atlantic over the next few days. As a result mostly moderate
easterly breezes today, will gradually give way to gentle to
moderate easterlies this weekend. The recent bout of increased
shower and thunderstorm activity is nearing its end, and
convective potential will fall closer to normal through this
period. Early next week the high will have pushed out into the
Atlantic and weak troughing is expected to set up over Cuba and
the Bahamas. This will tip breezes a bit further southeasterly
with, initially, some additional slackening.

The Approximate Shoreward Edge of the Gulf Stream as of May 30...

35 NM South of Dry Tortugas Light...on Loggerhead Key.
11 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
10 NM South of Sand Key Light..modestly.off Key West.
 7 NM South of Looe Key...off Big Pine Key.
 7 NM Southeast of Sombrero Key Light...off Marathon.
 6 NM Southeast of Alligator Reef Light...off Islamorada.
 2 NM Southeast of Molasses Reef Light...off Key Largo.
 1 NM Southeast of Carysfort Reef Light...off Ocean Reef.

Gulf Stream Information Courtesy of the National Weather Service in
Key West based on products from NASA SPoRT and RTOFS.

$$

GMZ031-052030-
Florida Bay including Barnes Sound, Blackwater Sound, and
Buttonwood Sound-
426 AM EDT Fri Jun 5 2026

.TODAY...Northeast to east winds near 15 knots. Bay waters a
moderate chop. A chance of showers and thunderstorms.
.TONIGHT...Northeast to east winds 10 to 15 knots. Bay waters a
light to moderate chop. A chance of showers with a slight chance
of thunderstorms.
.SATURDAY...Northeast to east winds near 15 knots. Bay waters a
moderate chop. A slight chance of showers and thunderstorms.
.SATURDAY NIGHT...Northeast to east winds decreasing to 10 to 15
knots. Bay waters becoming a light to moderate chop. A chance of
showers with a slight chance of thunderstorms.
.SUNDAY...East winds 10 to 15 knots. Bay waters a light to
moderate chop. A slight chance of showers and thunderstorms.
.SUNDAY NIGHT...East to southeast winds 10 to 15 knots. Bay
waters a light to moderate chop. A chance of showers with a
slight chance of thunderstorms.
.MONDAY...Southeast winds near 10 knots. Bay waters a light chop.
A chance of showers with a slight chance of thunderstorms.
.MONDAY NIGHT...East to southeast winds near 10 knots. Bay waters
a light chop. A chance of showers and thunderstorms.
.TUESDAY...East to southeast winds 5 to 10 knots. Bay waters
smooth to a light chop. Showers likely with a chance of
thunderstorms.
.TUESDAY NIGHT...East to southeast winds 10 to 15 knots. Bay
waters a light to moderate chop. Showers likely with a chance of
thunderstorms.

$$

GMZ032-035-052030-
Bayside and Gulf side from Craig Key to west end of Seven Mile
Bridge-
Gulf of Mexico from west end of Seven Mile Bridge to Halfmoon
Shoal out to 5 Fathoms-
426 AM EDT Fri Jun 5 2026

.TODAY...East winds near 15 knots. Seas 1 to 2 feet. Nearshore
waters a moderate chop. Showers likely with a chance of
thunderstorms.
.TONIGHT...Northeast to east winds decreasing to 10 to 15 knots.
Seas 1 to 2 feet. Nearshore waters becoming a light to moderate
chop. A chance of showers with a slight chance of thunderstorms.
.SATURDAY...East winds 10 to 15 knots, increasing to near 15
knots. Seas 1 to 2 feet. Nearshore waters a light to moderate
chop, becoming a moderate chop. A slight chance of showers and
thunderstorms.
.SATURDAY NIGHT...East winds near 15 knots. Seas 1 to 2 feet.
Nearshore waters a moderate chop. A chance of showers with a
slight chance of thunderstorms.
.SUNDAY...East winds 10 to 15 knots. Seas 1 to 2 feet. Nearshore
waters a light to moderate chop. A chance of showers with a
slight chance of thunderstorms.
.SUNDAY NIGHT...East to southeast winds 10 to 15 knots. Seas
1 to 2 feet. Nearshore waters a light to moderate chop. A chance
of showers with a slight chance of thunderstorms.
.MONDAY...Southeast winds near 10 knots. Seas around 1 foot.
Nearshore waters a light chop. A chance of showers with a slight
chance of thunderstorms.
.MONDAY NIGHT...East to southeast winds near 10 knots. Seas
around 1 foot. Nearshore waters a light chop. A chance of showers
and thunderstorms.
.TUESDAY...East to southeast winds 5 to 10 knots. Seas 1 foot or
less. Nearshore waters smooth to a light chop. A chance of
showers and thunderstorms.
.TUESDAY NIGHT...East to southeast winds 10 to 15 knots. Seas
around 1 foot, except building to 1 to 2 feet west of the
Marquesas Keys. Nearshore waters a light to moderate chop.
Showers likely with a chance of thunderstorms.

$$

GMZ042>044-052030-
Hawk Channel from Ocean Reef to Craig Key out to the reef-
Hawk Channel from Craig Key to west end of Seven Mile Bridge out
to the reef-
Hawk Channel from west end of Seven Mile Bridge to Halfmoon Shoal
out to the reef-
426 AM EDT Fri Jun 5 2026

.TODAY...East winds near 15 knots. Seas 2 to 3 feet. Nearshore
waters a moderate chop. Showers likely with a chance of
thunderstorms.
.TONIGHT...East winds near 15 knots. Seas 2 to 3 feet. Nearshore
waters a moderate chop. A chance of showers with a slight chance
of thunderstorms.
.SATURDAY...Northeast to east winds 10 to 15 knots, increasing to
near 15 knots. Seas around 2 feet. Nearshore waters a light to
moderate chop, becoming a moderate chop. A chance of showers with
a slight chance of thunderstorms.
.SATURDAY NIGHT...East winds near 15 knots. Seas 2 to 3 feet.
Nearshore waters a moderate chop. A chance of showers with a
slight chance of thunderstorms.
.SUNDAY...East winds near 15 knots. Seas around 2 feet. Nearshore
waters a moderate chop. A chance of showers with a slight chance
of thunderstorms.
.SUNDAY NIGHT...East to southeast winds 10 to 15 knots. Seas 1 to
2 feet. Nearshore waters a light to moderate chop. A chance of
showers with a slight chance of thunderstorms.
.MONDAY...Southeast winds near 10 knots. Seas 1 to 2 feet.
Nearshore waters a light chop. A chance of showers with a slight
chance of thunderstorms.
.MONDAY NIGHT...East to southeast winds near 10 knots. Seas 1 to
2 feet. Nearshore waters a light chop. A chance of showers and
thunderstorms.
.TUESDAY...East to southeast winds 5 to 10 knots. Seas around
1 foot. Nearshore waters smooth to a light chop. A chance of
showers and thunderstorms.
.TUESDAY NIGHT...East to southeast winds 10 to 15 knots. Seas
1 to 2 feet. Nearshore waters a light to moderate chop. Showers
likely with a chance of thunderstorms.

$$

GMZ052>055-072>075-052030-
Straits of Florida from Ocean Reef to Craig Key out 20 NM-
Straits of Florida from Craig Key to west end of Seven Mile
Bridge out 20 NM-
Straits of Florida from west end of Seven Mile Bridge to south of
Halfmoon Shoal out 20 NM-
Straits of Florida from Halfmoon Shoal to 20 NM west of Dry
Tortugas out 20 NM-
Straits of Florida from Ocean Reef to Craig Key 20 to 60 NM out-
Straits of Florida from Craig Key to west end of Seven Mile
Bridge 20 to 60 NM out-
Straits of Florida from west end of Seven Mile Bridge to south of
Halfmoon Shoal 20 to 60 NM out-
Straits of Florida from Halfmoon Shoal to 20 NM west of Dry
Tortugas 20 to 60 NM out-
426 AM EDT Fri Jun 5 2026

.TODAY...East winds 10 to 15 knots, increasing to near 15 knots.
Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: Northeast
to east 4 feet at 5 seconds. Showers likely with a chance of
thunderstorms.
.TONIGHT...Northeast to east winds decreasing to 10 to 15 knots.
Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: Northeast
to east 4 feet at 5 seconds. A chance of showers with a slight
chance of thunderstorms.
.SATURDAY...Northeast to east winds 10 to 15 knots, increasing to
near 15 knots. Seas around 3 feet. Wave Detail: Northeast to east
3 feet at 5 seconds. A chance of showers with a slight chance of
thunderstorms.
.SATURDAY NIGHT...East winds decreasing to 10 to 15 knots. Seas 3
to 4 feet, occasionally to 5 feet. A chance of showers with a
slight chance of thunderstorms.
.SUNDAY...East winds 10 to 15 knots. Seas 2 to 3 feet. A chance
of showers with a slight chance of thunderstorms.
.SUNDAY NIGHT...East to southeast winds near 15 knots, becoming
southeast after midnight. Seas 2 to 3 feet. A chance of showers
with a slight chance of thunderstorms.
.MONDAY...Southeast winds near 10 knots. Seas 1 to 2 feet. A
chance of showers with a slight chance of thunderstorms.
.MONDAY NIGHT...East to southeast winds 10 to 15 knots. Seas 1 to
2 feet. A chance of showers and thunderstorms.
.TUESDAY...East to southeast winds 5 to 10 knots. Seas 1 to
2 feet. A chance of showers and thunderstorms.
.TUESDAY NIGHT...East to southeast winds 10 to 15 knots. Seas
building to 2 to 3 feet. Showers likely with a chance of
thunderstorms.

$$

GMZ033-034-052030-
Gulf of America from East Cape Sable to Chokoloskee 20 to 60 NM
out and beyond 5 fathoms-
Gulf of America including Dry Tortugas and Rebecca Shoal Channel-
426 AM EDT Fri Jun 5 2026

.TODAY...East winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: East 3 feet at 4 seconds. Showers likely with a chance of
thunderstorms.
.TONIGHT...East winds increasing to near 15 knots. Seas around 2
feet. Wave Detail: East 2 feet at 4 seconds. A chance of showers
with a slight chance of thunderstorms.
.SATURDAY...East winds 10 to 15 knots. Seas 1 to 2 feet. Wave
Detail: Northeast to east 2 feet at 4 seconds. A chance of
showers with a slight chance of thunderstorms.
.SATURDAY NIGHT...East winds 10 to 15 knots, increasing to near 15
knots. Seas 1 to 2 feet. A chance of showers with a slight chance
of thunderstorms.
.SUNDAY...East winds 10 to 15 knots. Seas 1 to 2 feet. A chance
of showers with a slight chance of thunderstorms.
.SUNDAY NIGHT...East to southeast winds 10 to 15 knots. Seas 1 to
2 feet. A chance of showers with a slight chance of
thunderstorms.
.MONDAY...East to southeast winds 5 to 10 knots. Seas 1 to
2 feet. A chance of showers with a slight chance of
thunderstorms.
.MONDAY NIGHT...East to southeast winds 5 to 10 knots, increasing
to near 10 knots. Seas around 1 foot. A chance of showers and
thunderstorms.
.TUESDAY...East to southeast winds 5 to 10 knots. Seas around
1 foot. A chance of showers and thunderstorms.
.TUESDAY NIGHT...East to southeast winds near 10 knots. Seas 1 to
2 feet. Showers likely with a chance of thunderstorms.

$$