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Cudjoe Key, FL - Cudjoe Bay Coastal Forecast

FZUS52 KKEY 102022
CWFKEY

Coastal Waters Forecast for the Florida Keys
National Weather Service Key West FL
422 PM EDT Tue Mar 10 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.

GMZ005-110830-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
422 PM EDT Tue Mar 10 2026

.SYNOPSIS...High pressure is centered near Bermuda with the
western periphery of this ridge extending west into Florida and
the Gulf. The high will retreat eastward into the Atlantic
through mid week, shifting breezes east to southeasterly. A cold front
will steadily push southeastward into South Florida through the
remainder of the week and the weekend. Breezes will shift to the
southeast to south and eventually become variable sometime
Thursday. Since the front isn't expected to reach the Keys, high
pressure regains control and thus returns breezes back to the east
to southeast.

The Approximate Shoreward Edge of the Gulf Stream as of March 7...

55 NM South of Dry Tortugas Light...on Loggerhead Key.
15 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
7 NM South of Sand Key Light...off Key West.
8 NM South of Looe Key...off Big Pine Key.
10 NM Southeast of Sombrero Key Light...off Marathon.
8 NM Southeast of Alligator Reef Light...off Islamorada.
5 NM Southeast of Molasses Reef Light...off Key Largo.
3 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.

$$

GMZ031-110830-
Florida Bay including Barnes Sound, Blackwater Sound, and
Buttonwood Sound-
422 PM EDT Tue Mar 10 2026

.TONIGHT...East winds 10 to 15 knots, becoming east to southeast
and increasing to near 15 knots. Bay waters a light to moderate
chop, becoming a moderate chop.
.WEDNESDAY...East to southeast winds near 15 knots, decreasing 10
to 15 knots. Bay waters a moderate chop, becoming a light to
moderate chop.
.WEDNESDAY NIGHT...East to southeast winds 10 to 15 knots. Bay
waters a light to moderate chop.
.THURSDAY...Southeast to south winds near 10 knots, becoming
south and decreasing to 5 to 10 knots. Bay waters a light chop,
becoming smooth to a light chop. A slight chance of showers.
.THURSDAY NIGHT...Southeast to south winds near 5 knots. Bay
waters smooth. A slight chance of showers.
.FRIDAY...Southeast winds 5 to 10 knots. Bay waters smooth to a
light chop. A chance of showers.
.FRIDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters smooth
to a light chop. A slight chance of showers and thunderstorms.
.SATURDAY...Southeast winds 5 to 10 knots. Bay waters smooth to a
light chop. A chance of showers.
.SATURDAY NIGHT...East to southeast winds 5 to 10 knots, becoming
southeast 10 to 15 knots after midnight. Bay waters smooth to a
light chop, becoming a light to moderate chop. A chance of
showers with a slight chance of thunderstorms.
.SUNDAY...Southeast winds near 15 knots, becoming around 10 knots
in the afternoon. Bay waters a moderate chop, becoming a light
chop. A chance of showers with a slight chance of thunderstorms.
.SUNDAY NIGHT...Southeast winds 10 to 15 knots. Bay waters a
light to moderate chop. A chance of showers and thunderstorms.

$$

GMZ032-035-110830-
Bayside and Gulfside from Craig Key to west end of Seven Mile
Bridge-
Gulf of America from west end of Seven Mile Bridge to Halfmoon
Shoal out to 5 Fathoms-
422 PM EDT Tue Mar 10 2026

.TONIGHT...East winds 10 to 15 knots, becoming east to southeast.
Seas around 1 foot, except 2 to 3 feet west of the Marquesas
Keys. Nearshore waters a light to moderate chop.
.WEDNESDAY...East to southeast winds near 15 knots. Seas 1 to 2
feet, except 2 to 3 feet west of the Marquesas Keys. Nearshore
waters a moderate chop.
.WEDNESDAY NIGHT...East to southeast winds 10 to 15 knots,
becoming southeast. Seas around 1 foot, except 2 to 3 feet west
of the Marquesas Keys. Nearshore waters a light to moderate chop.
.THURSDAY...Southeast to south winds near 10 knots, becoming south
and decreasing to 5 to 10 knots. Seas around 1 foot, except
subsiding to 1 to 2 feet west of the Marquesas Keys. Nearshore
waters a light chop, becoming smooth to a light chop.
.THURSDAY NIGHT...Southeast winds near 5 knots. Seas 1 foot or
less. Nearshore waters smooth. A slight chance of showers.
.FRIDAY...Southeast winds 5 to 10 knots. Seas 1 foot or less.
Nearshore waters smooth to a light chop. A chance of showers.
.FRIDAY NIGHT...East winds near 5 knots. Seas 1 to 2 feet.
Nearshore waters smooth. A chance of showers and a slight chance
of showers.
.SATURDAY...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 a slight chance of showers.
.SATURDAY NIGHT...East to southeast winds 5 to 10 knots. Seas
1 foot or less. Nearshore waters smooth to a light chop. A chance
of showers.
.SUNDAY...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.
.SUNDAY NIGHT...Southeast winds 10 to 15 knots. Seas 1 to 2 feet.
Nearshore waters a light to moderate chop. A chance of showers
and thunderstorms.

$$

GMZ042>044-110830-
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-
422 PM EDT Tue Mar 10 2026

.TONIGHT...East winds near 15 knots, becoming east to southeast.
Seas 2 to 4 feet, occasionally to 5 feet. Nearshore waters a
moderate chop.
.WEDNESDAY...East to southeast winds near 15 knots, decreasing to 10
to 15 knots. Seas 2 to 4 feet, occasionally to 5 feet, subsiding
to 2 to 3 feet. Nearshore waters a moderate chop, becoming a light
to moderate chop.
.WEDNESDAY NIGHT...East to southeast winds 10 to 15 knots,
becoming southeast. Seas 2 to 3 feet. Nearshore waters a light to
moderate chop.
.THURSDAY...Southeast to south winds near 10 knots, decreasing to 5
to 10 knots. Seas around 2 feet. Nearshore waters a light chop,
becoming smooth to a light chop.
.THURSDAY NIGHT...Southeast winds 5 to 10 knots. Seas 1 to 2 feet.
Nearshore waters smooth to a light chop. A slight chance of
showers.
.FRIDAY...Southeast winds 5 to 10 knots. Seas around 1 foot.
Nearshore waters smooth to a light chop. A chance of showers.
.FRIDAY NIGHT...East winds 5 to 10 knots. Seas 1 foot, except
2 to 3 feet west of Cosgrove Shoal Light. Nearshore waters smooth
to a light chop. A chance of showers with a slight chance of
thunderstorms.
.SATURDAY...East to southeast winds 5 to 10 knots. Seas 1 to
2 feet. Nearshore waters smooth to a light chop. A chance of
showers with a slight chance of thunderstorms.
.SATURDAY 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.
.SUNDAY...Southeast winds 10 to 15 knots. Seas around 2 feet.
Nearshore waters a light to moderate chop. A chance of showers
with a slight chance of thunderstorms.
.SUNDAY NIGHT...Southeast winds 10 to 15 knots. Seas around
2 feet. Nearshore waters a light to moderate chop. A chance of
showers and thunderstorms.

$$

GMZ052>055-072>075-110830-
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-
422 PM EDT Tue Mar 10 2026

...SMALL CRAFT SHOULD EXERCISE CAUTION...

.TONIGHT...East to southeast winds 15 to 20 knots. Seas 3 to 5
feet, occasionally to 6 feet. Wave Detail: East 4 feet at 5
seconds.
.WEDNESDAY...East to southeast winds 15 to 20 knots. Seas 3 to 5
feet, occasionally to 6 feet. Wave Detail: East 4 feet at 5
seconds.
.WEDNESDAY NIGHT...East to southeast winds 15 to 20 knots,
decreasing to 10 to 15 knots. Seas 2 to 4 feet, occasionally to 5
feet. Wave Detail:
East 4 feet at 5 seconds.
.THURSDAY...Southeast winds 10 to 15 knots, becoming southeast to
south 5 to 10 knots in the afternoon. Seas 2 to 3 feet. Isolated
showers.
.THURSDAY NIGHT...East to southeast winds 5 to 10 knots. Seas
1 to 2 feet. Isolated showers.
.FRIDAY...East to southeast winds 5 to 10 knots. Seas around
1 foot. A chance of showers.
.FRIDAY NIGHT...East to southeast winds 5 to 10 knots. Seas 2 to
3 feet. A chance of showers with a slight chance of
thunderstorms.
.SATURDAY...East to southeast winds near 10 knots. Seas around 2
feet. A chance of showers with a slight chance of thunderstorms.
.SATURDAY NIGHT...East to southeast winds 10 to 15 knots. Seas
2 to 3 feet. A chance of showers with a slight chance of
thunderstorms.
.SUNDAY...Southeast winds 10 to 15 knots. Seas 2 to 3 feet. A
chance of showers with a slight chance of thunderstorms.
.SUNDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to 3 feet.
A chance of showers and thunderstorms.

$$

GMZ033-034-110830-
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-
422 PM EDT Tue Mar 10 2026

.TONIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: East to southeast 2 feet at 3 seconds.
.WEDNESDAY...East to southeast winds 10 to 15 knots. Seas 2 to
3 feet. Wave Detail: East to southeast 3 feet at 3 seconds.
.WEDNESDAY NIGHT...East to southeast winds 10 to 15 knots. Seas
2 to 3 feet. Wave Detail: East to southeast 2 feet at 3 seconds.
.THURSDAY...Southeast to south winds 5 to 10 knots. Seas 1 to
2 feet. Isolated showers.
.THURSDAY NIGHT...Southwest winds near 5 knots, becoming east
after midnight. Seas 1 foot or less. Isolated showers.
.FRIDAY...East to southeast winds 5 to 10 knots. Seas 1 foot or
less, building to 2 to 3 feet in the afternoon. A chance of
showers.
.FRIDAY NIGHT...East winds near 5 knots. Seas 2 to 3 feet. A
chance of showers with a slight chance of thunderstorms.
.SATURDAY...East to southeast winds 5 to 10 knots. Seas 1 to
2 feet. A chance of showers with a slight chance of
thunderstorms.
.SATURDAY NIGHT...East to southeast winds 5 to 10 knots. Seas
1 to 2 feet. A chance of showers and thunderstorms.
.SUNDAY...Southeast winds 5 to 10 knots. Seas 1 to 2 feet. A
chance of showers and thunderstorms.
.SUNDAY NIGHT...Southeast winds 5 to 10 knots. Seas 1 to 2 feet.
A chance of showers with a slight chance of thunderstorms.

$$


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