181
FZUS52 KKEY 020936
CWFKEY

Coastal Waters Forecast for the Florida Keys
National Weather Service Key West FL
436 AM EST Mon Nov 2 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.

The Wave Detail section highlights the period and direction of
origin for the highest-energy waves, as well as any long-period
swells moving in a different direction than the wind.

GMZ005-022145-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
436 AM EST Mon Nov 2 2026

.SYNOPSIS...
Small Craft Should Exercise Caution until winds decrease across
eastern portions of the Florida Straits. Elevated northerly swell
will persist through Tuesday for the waters southeast of the
Upper Keys. Broad wind convergence across the marine zones will
keep shower and thunderstorm chances high through Tuesday. Expect
slackening breezes and drier air during the middle of the week for
all marine zones.

The Approximate Shoreward Edge of the Gulf Stream as of October
27, 2026...

19 NM south of Dry Tortugas Light, on Loggerhead Key
34 NM south of Cosgrove Shoal Light, off the Marquesas Keys
28 NM south of Sand Key Light, off Key West
38 NM south of Looe Key, off Big Pine Key
31 NM southeast of Sombrero Key Light, off Marathon
17 NM south-southeast of Alligator Reef Light, off Islamorada
10 NM southeast of Molasses Reef Light, off Key Largo
10 NM northwest of Carysfort Reef Light, off Ocean Reef

Gulf Stream Information Courtesy of the National Weather Service in
Key West, using data from RTOFS and NASA SPoRT SST.

$$

GMZ031-022145-
Florida Bay including Barnes Sound, Blackwater Sound, and
Buttonwood Sound-
436 AM EST Mon Nov 2 2026

.TODAY...East winds 10 to 15 knots. Bay waters a light to
moderate chop. Showers likely with a chance of thunderstorms.
.TONIGHT...East winds 10 to 15 knots. Bay waters a light to
moderate chop. A chance of showers with a slight chance of
thunderstorms.
.TUESDAY...East winds near 10 knots. Bay waters a light chop. A
chance of showers with a slight chance of thunderstorms.
.TUESDAY NIGHT...Northeast to east winds near 10 knots, decreasing
to 5 to 10 knots. Bay waters a light chop, becoming smooth to a
light chop. A slight chance of showers and thunderstorms.
.WEDNESDAY...Northeast to east winds decreasing to near 5 knots.
Bay waters becoming smooth. A slight chance of showers and
thunderstorms.
.WEDNESDAY NIGHT...North to northeast winds near 5 knots. Bay
waters smooth.
.THURSDAY...Northwest to north winds 5 to 10 knots, becoming north.
Bay waters smooth to a light chop. A slight chance of showers.
.THURSDAY NIGHT...North winds 5 to 10 knots. Bay waters smooth to
a light chop.
.FRIDAY...North winds near 5 knots. Bay waters smooth.
.FRIDAY NIGHT...Northwest to north winds near 5 knots. Bay waters
smooth.

$$

GMZ032-035-022145-
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-
436 AM EST Mon Nov 2 2026

.TODAY...Northeast to east winds near 10 knots, becoming east and
increasing to 10 to 15 knots. Seas around 1 foot. Nearshore
waters a light chop. Showers likely with a chance of
thunderstorms.
.TONIGHT...East winds 10 to 15 knots. Seas around 1 foot.
Nearshore waters a light to moderate chop. A chance of showers
with a slight chance of thunderstorms.
.TUESDAY...East winds decreasing to near 10 knots. Seas around 1
foot. Nearshore waters becoming a light chop. A chance of showers
with a slight chance of thunderstorms.
.TUESDAY NIGHT...East winds near 10 knots, decreasing to 5 to 10
knots. Seas 1 foot or less. Nearshore waters a light chop,
becoming smooth. A slight chance of showers and thunderstorms.
.WEDNESDAY...Northeast winds 5 to 10 knots. Seas 1 foot or less.
Nearshore waters smooth to a light chop. A slight chance of
showers and thunderstorms.
.WEDNESDAY NIGHT...North to northeast winds near 5 knots, becoming
north. Seas 1 foot or less. Nearshore waters smooth.
.THURSDAY...Northwest to north winds 5 to 10 knots. Seas 1 foot
or less. Nearshore waters smooth to a light chop.
.THURSDAY NIGHT THROUGH FRIDAY NIGHT...North winds 5 to 10 knots.
Seas 1 foot or less. Nearshore waters smooth to a light chop.

$$

GMZ042-022145-
Hawk Channel from Ocean Reef to Craig Key out to the reef-
436 AM EST Mon Nov 2 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, decreasing to 10 to 15 knots
late. Seas 2 to 3 feet. Nearshore waters a moderate chop, becoming
a light to moderate chop. A chance of showers with a slight
chance of thunderstorms.
.TUESDAY...East winds decreasing to near 10 knots. Seas 2 to 3
feet, subsiding to 1 to 2 feet. Nearshore waters becoming a light
chop. A chance of showers with a slight chance of thunderstorms.
.TUESDAY NIGHT...Northeast to east 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.
.WEDNESDAY...Northeast winds 5 to 10 knots. Seas around 1 foot.
Nearshore waters smooth to a light chop. A slight chance of
showers and thunderstorms.
.WEDNESDAY NIGHT...North to northeast winds near 5 knots. Seas
around 1 foot. Nearshore waters smooth.
.THURSDAY...North winds near 5 knots. Seas around 1 foot.
Nearshore waters smooth. A slight chance of showers.
.THURSDAY NIGHT...North to northeast winds 5 to 10 knots. Seas
around 1 foot. Nearshore waters smooth to a light chop.
.FRIDAY...North winds 5 to 10 knots. Seas around 1 foot.
Nearshore waters smooth to a light chop.
.FRIDAY NIGHT...North winds near 5 knots. Seas around 1 foot.
Nearshore waters smooth.

$$

GMZ043-044-022145-
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-
436 AM EST Mon Nov 2 2026

.TODAY...Northeast to east winds 10 to 15 knots. Seas 1 to 2
feet. Nearshore waters a light chop. Showers likely with a chance
of thunderstorms.
.TONIGHT...East winds 10 to 15 knots, decreasing to near 10 knots.
Seas 1 to 2 feet. Nearshore waters a light to moderate chop,
becoming a light chop. A chance of showers with a slight chance
of thunderstorms.
.TUESDAY...East winds near 10 knots, decreasing to 5 to 10 knots.
Seas 1 to 2 feet. Nearshore waters a light chop. A chance of
showers with a slight chance of thunderstorms.
.TUESDAY NIGHT...East winds 5 to 10 knots, decreasing to near 5
knots. Seas 1 to 2 feet, subsiding to around 1 foot. Nearshore
waters smooth to a light chop, becoming smooth. A chance of
showers with a slight chance of thunderstorms.
.WEDNESDAY...Northeast winds near 5 knots. Seas around 1 foot.
Nearshore waters smooth. A slight chance of showers and
thunderstorms.
.WEDNESDAY NIGHT...North to northeast winds near 5 knots. Seas
1 foot or less. Nearshore waters smooth.
.THURSDAY...North winds 5 to 10 knots. Seas 1 foot or less.
Nearshore waters smooth to a light chop.
.THURSDAY NIGHT AND FRIDAY...North to northeast winds 5 to 10
knots. Seas 1 foot or less. Nearshore waters smooth to a light
chop.
.FRIDAY NIGHT...North winds near 5 knots. Seas 1 foot or less.
Nearshore waters smooth.

$$

GMZ052-072-022145-
Straits of Florida from Ocean Reef to Craig Key out 20 NM-
Straits of Florida from Ocean Reef to Craig Key 20 to 60 NM out-
436 AM EST Mon Nov 2 2026

...SMALL CRAFT SHOULD EXERCISE CAUTION UNTIL WINDS DECREASE...

.TODAY...East winds 15 to 20 knots early, decreasing to near 15
knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail:
Northeast to east 4 feet at 6 seconds. Showers likely with a
chance of thunderstorms.
.TONIGHT...East winds near 15 knots, decreasing to 10 to 15 knots
late. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail:
Northeast to east 4 feet at 6 seconds. A chance of showers with a
slight chance of thunderstorms.
.TUESDAY...East winds near 10 knots, decreasing to 5 to 10 knots.
Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: East 3
feet at 5 seconds. A chance of showers with a slight chance of
thunderstorms.
.TUESDAY NIGHT...East winds 5 to 10 knots, becoming northeast to
east. Seas 2 to 3 feet, subsiding to 1 to 2 feet. A chance of
showers with a slight chance of thunderstorms.
.WEDNESDAY...Northeast winds 5 to 10 knots, becoming north to
northeast. Seas 1 to 2 feet. A slight chance of showers and
thunderstorms.
.WEDNESDAY NIGHT AND THURSDAY...North to northeast winds 5 to 10
knots. Seas 1 to 2 feet. A slight chance of showers.
.THURSDAY NIGHT...North to northeast winds 5 to 10 knots. Seas
1 to 2 feet.
.FRIDAY AND FRIDAY NIGHT...North winds 5 to 10 knots. Seas 1 to 2
feet.

$$

GMZ053>055-073>075-022145-
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 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-
436 AM EST Mon Nov 2 2026

.TODAY...Northeast to east winds 10 to 15 knots. Seas 2 to 3
feet. Wave Detail: Northeast to east 3 feet at 5 seconds. Showers
likely with a chance of thunderstorms.
.TONIGHT...East winds 10 to 15 knots, decreasing to near 10 knots
late. Seas 2 to 3 feet. Wave Detail:
Northeast to east 3 feet at 6 seconds. A chance of showers with a
slight chance of thunderstorms.
.TUESDAY...East winds near 10 knots, decreasing to 5 to 10 knots.
Seas 2 to 3 feet, subsiding to around 2 feet. Wave Detail:
Northeast to east 2 feet at 6 seconds. A chance of showers with a
slight chance of thunderstorms.
.TUESDAY NIGHT...East winds 5 to 10 knots, decreasing to near 5
knots. Seas around 2 feet, subsiding to 1 to 2 feet. A chance of
showers with a slight chance of thunderstorms.
.WEDNESDAY...Northeast winds near 5 knots. Seas 1 to 2 feet. A
slight chance of showers and thunderstorms.
.WEDNESDAY NIGHT...North to northeast winds near 5 knots. Seas
around 1 foot.
.THURSDAY...North winds 5 to 10 knots. Seas around 1 foot. A
slight chance of showers.
.THURSDAY NIGHT THROUGH FRIDAY NIGHT...North to northeast winds 5
to 10 knots. Seas around 1 foot.

$$

GMZ033-034-022145-
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-
436 AM EST Mon Nov 2 2026

.TODAY...Northeast to east winds 10 to 15 knots. Seas 2 to
3 feet. Wave Detail: Northeast to east 2 feet at 4 seconds.
Showers likely with a chance of thunderstorms.
.TONIGHT...East winds 10 to 15 knots, decreasing to near 10 knots
late. Seas 2 to 3 feet. Wave Detail: Northeast to east 2 feet at
4 seconds. A chance of showers with a slight chance of
thunderstorms.
.TUESDAY...East winds near 10 knots, decreasing to 5 to 10 knots.
Seas 1 to 2 feet, subsiding to around 1 foot. Wave Detail: East 2
feet at 4 seconds. A chance of showers with a slight chance of
thunderstorms.
.TUESDAY NIGHT...East winds 5 to 10 knots. Seas around 1 foot. A
slight chance of showers and thunderstorms.
.WEDNESDAY...Northeast to east winds 5 to 10 knots. Seas around 1
foot. A slight chance of showers and thunderstorms.
.WEDNESDAY NIGHT...North winds near 5 knots. Seas around 1 foot.
.THURSDAY...North winds 5 to 10 knots. Seas around 1 foot.
.THURSDAY NIGHT...North to northeast winds 5 to 10 knots. Seas
around 1 foot.
.FRIDAY...North winds 5 to 10 knots. Seas around 1 foot.
.FRIDAY NIGHT...North winds 5 to 10 knots. Seas 1 to 2 feet.

$$

DP