362
FZUS52 KKEY 240224
CWFKEY

Coastal Waters Forecast for the Florida Keys
National Weather Service Key West FL
1024 PM EDT Fri Oct 23 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.

GMZ005-241430-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
1024 PM EDT Fri Oct 23 2026

.SYNOPSIS...
Strengthening high pressure centered over the Mid-Atlantic region
will interact with a developing disturbance in the eastern
Caribbean, supporting freshening northeasterly breezes over the
next several days. A Small Craft Advisory is in effect for all
Florida Keys marine zones. Breezes will peak Sunday night through
Tuesday, when strong to near gale breezes will be possible. The
freshening breezes and a surge of moisture may also support
elevated rain and thunderstorm chances through Monday.

The Approximate Shoreward Edge of the Gulf Stream as of October
19, 2026...

46 NM south of Dry Tortugas Light, on Loggerhead Key
18 NM north of Cosgrove Shoal Light, off the Marquesas Keys
12 NM north of Sand Key Light, off Key West
 7 NM north-northwest of Looe Key, off Big Pine Key
 5 NM southeast of Sombrero Key Light, off Marathon
 2 NM south-southeast of Alligator Reef Light, off Islamorada
 2 NM northwest of Molasses Reef Light, off Key Largo
 3 NM northwest of Carysfort Reef Light, off Ocean Reef

Gulf Stream Information Courtesy of the Naval Oceanographic
Office.

$$

GMZ031-241430-
Florida Bay including Barnes Sound, Blackwater Sound, and
Buttonwood Sound-
1024 PM EDT Fri Oct 23 2026

...SMALL CRAFT ADVISORY IN EFFECT...

.OVERNIGHT...Northeast winds near 20 knots. Wave Detail:
Northeast 1 foot at 2 seconds. Bay waters rough. A chance of
showers with a slight chance of thunderstorms.
.SATURDAY...Northeast winds 15 to 20 knots, decreasing to near 15
knots. Bay waters choppy, becoming a moderate chop.
.SATURDAY NIGHT...North winds 15 to 20 knots. Wave Detail: North
to northeast 1 foot at 2 seconds. Bay waters choppy.
.SUNDAY...North to northeast winds 15 to 20 knots, increasing to
near 20 knots. Bay waters choppy, becoming rough. A chance of
showers with a slight chance of thunderstorms.
.SUNDAY NIGHT...North to northeast winds near 20 knots. Bay
waters rough. A chance of showers with a slight chance of
thunderstorms.
.MONDAY...North to northeast winds near 20 knots, increasing to 20
to 25 knots. Bay waters rough, becoming very rough. A chance of
showers with a slight chance of thunderstorms.
.MONDAY NIGHT...North to northeast winds 20 to 25 knots,
decreasing to near 20 knots. Bay waters very rough, becoming rough.
A slight chance of showers and thunderstorms.
.TUESDAY...Northeast winds near 20 knots, increasing to 20 to 25
knots. Bay waters rough, becoming very rough. A chance of showers
with a slight chance of thunderstorms.
.TUESDAY NIGHT...Northeast winds 20 to 25 knots, decreasing to 15
to 20 knots. Bay waters very rough, becoming choppy. A slight
chance of showers and thunderstorms.
.WEDNESDAY...Northeast to east winds 15 to 20 knots, increasing to
near 20 knots. Bay waters choppy, becoming rough. A slight chance
of showers and thunderstorms.
.WEDNESDAY NIGHT...Northeast winds near 20 knots, decreasing to 15
to 20 knots. Bay waters rough, becoming choppy. A slight chance
of showers and thunderstorms.

$$

GMZ032-035-241430-
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-
1024 PM EDT Fri Oct 23 2026

...SMALL CRAFT ADVISORY IN EFFECT...

.OVERNIGHT...Northeast winds near 20 knots. Seas 2 to 4 feet,
occasionally to 5 feet. Nearshore waters rough. A chance of
showers with a slight chance of thunderstorms.
.SATURDAY...Northeast winds near 20 knots, decreasing to 15 to 20
knots. Seas 2 to 4 feet, occasionally to 5 feet, except 4 to 6
feet, occasionally to 8 feet west of the Marquesas Keys. Nearshore
waters rough, becoming choppy.
.SATURDAY NIGHT...North to northeast winds 15 to 20 knots. Seas
2 to 4 feet, occasionally to 5 feet, except 5 to 6 feet,
occasionally to 8 feet west of the Marquesas Keys. Nearshore
waters choppy.
.SUNDAY...North to northeast winds 15 to 20 knots. Seas 2 to
4 feet, occasionally to 5 feet, except 5 to 6 feet, occasionally
to 8 feet west of the Marquesas Keys. Nearshore waters choppy. A
chance of showers with a slight chance of thunderstorms.
.SUNDAY NIGHT...North to northeast winds 20 to 25 knots. Seas
3 to 5 feet, occasionally to 6 feet. West of the Marquesas Keys,
seas 6 to 7 feet, occasionally to 9 feet, building to 7 to
9 feet, occasionally to 11 feet. Nearshore waters very rough. A
chance of showers with a slight chance of thunderstorms.
.MONDAY...North to northeast winds 20 to 25 knots. Seas 3 to
5 feet, occasionally to 6 feet. West of the Marquesas Keys, seas
7 to 9 feet, occasionally to 11 feet, subsiding to 6 to 7 feet,
occasionally to 9 feet. Nearshore waters very rough. A chance of
showers with a slight chance of thunderstorms.
.MONDAY NIGHT...Northeast winds 20 to 25 knots. Seas 3 to 5 feet,
occasionally to 6 feet, except 6 to 8 feet, occasionally to
10 feet west of the Marquesas Keys. Nearshore waters very rough.
A slight chance of showers and thunderstorms.
.TUESDAY...Northeast winds 20 to 25 knots. Seas 3 to 5 feet,
occasionally to 6 feet. West of the Marquesas Keys, seas 7 to
9 feet, occasionally to 11 feet, subsiding to 5 to 7 feet,
occasionally to 9 feet. Nearshore waters very rough. A slight
chance of showers and thunderstorms.
.TUESDAY NIGHT...Northeast winds 20 to 25 knots. Seas 3 to
5 feet, occasionally to 6 feet, except 5 to 6 feet, occasionally
to 8 feet west of the Marquesas Keys. Nearshore waters very
rough. A slight chance of showers.
.WEDNESDAY...Northeast winds 20 to 25 knots, becoming northeast
to east 15 to 20 knots. Seas 3 to 5 feet, occasionally to 6 feet.
West of the Marquesas Keys, seas 6 to 7 feet, occasionally to 9
feet, subsiding to 4 to 5 feet, occasionally to 6 feet. Nearshore
waters very rough, becoming choppy in the afternoon. A slight
chance of showers and thunderstorms.
.WEDNESDAY NIGHT...Northeast to east winds 15 to 20 knots. Seas
2 to 3 feet. Nearshore waters choppy. A slight chance of showers
and thunderstorms.

$$

GMZ042>044-241430-
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-
1024 PM EDT Fri Oct 23 2026

...SMALL CRAFT ADVISORY IN EFFECT...

.OVERNIGHT...Northeast winds near 20 knots. Seas 2 to 4 feet,
occasionally to 5 feet. Nearshore waters rough. A chance of
showers with a slight chance of thunderstorms.
.SATURDAY...Northeast winds near 20 knots, decreasing to 15 to 20
knots. Seas 2 to 4 feet, occasionally to 5 feet, except 4 to 5
feet, occasionally to 6 feet west of Cosgrove Shoal Light.
Nearshore waters rough, becoming choppy. A slight chance of
showers and thunderstorms.
.SATURDAY NIGHT...North to northeast winds 15 to 20 knots. Seas
2 to 3 feet, except 4 to 5 feet, occasionally to 6 feet west of
Cosgrove Shoal Light. Nearshore waters choppy. A slight chance of
showers and thunderstorms.
.SUNDAY...North to northeast winds 15 to 20 knots. Seas 2 to
3 feet, except 4 to 5 feet, occasionally to 6 feet west of
Cosgrove Shoal Light. Nearshore waters choppy. A chance of
showers with a slight chance of thunderstorms.
.SUNDAY NIGHT...North to northeast winds 20 to 25 knots. Seas
2 to 4 feet, occasionally to 5 feet, except 5 to 7 feet,
occasionally to 9 feet west of Cosgrove Shoal Light. Nearshore
waters very rough. A chance of showers with a slight chance of
thunderstorms.
.MONDAY...North to northeast winds 20 to 25 knots. Seas 2 to
4 feet, occasionally to 5 feet, except 5 to 7 feet, occasionally
to 9 feet west of Cosgrove Shoal Light. Nearshore waters very
rough. A chance of showers with a slight chance of thunderstorms.
.MONDAY NIGHT...Northeast winds near 25 knots. Seas 3 to 5 feet,
occasionally to 6 feet, except 5 to 7 feet, occasionally to
9 feet west of Cosgrove Shoal Light. Nearshore waters extremely
rough. A slight chance of showers and thunderstorms.
.TUESDAY...Northeast winds 20 to 25 knots. Seas 3 to 5 feet,
occasionally to 6 feet, except 5 to 8 feet, occasionally to
10 feet west of Cosgrove Shoal Light. Nearshore waters very
rough. A slight chance of showers and thunderstorms.
.TUESDAY NIGHT...Northeast winds 20 to 25 knots. Seas 3 to
5 feet, occasionally to 6 feet, except 5 to 6 feet, occasionally
to 8 feet west of Cosgrove Shoal Light. Nearshore waters very
rough. A slight chance of showers and thunderstorms.
.WEDNESDAY...Northeast winds 20 to 25 knots, becoming northeast
to east 15 to 20 knots. Seas 2 to 4 feet, occasionally to 5 feet,
except 4 to 6 feet, occasionally to 8 feet west of Cosgrove Shoal
Light. Nearshore waters very rough, becoming choppy. A chance of
showers with a slight chance of thunderstorms.
.WEDNESDAY NIGHT...Northeast to east winds 15 to 20 knots. Seas
2 to 4 feet, occasionally to 5 feet. Nearshore waters choppy. A
chance of showers with a slight chance of thunderstorms.

$$

GMZ052>055-072>075-241430-
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-
1024 PM EDT Fri Oct 23 2026

...SMALL CRAFT ADVISORY IN EFFECT...

.OVERNIGHT...Northeast winds near 20 knots. Seas 4 to 6 feet,
occasionally to 8 feet. Wave Detail: Northeast 6 feet at 6
seconds. Showers likely with a slight chance of thunderstorms.
.SATURDAY...Northeast winds near 20 knots. Seas 4 to 6 feet,
occasionally to 8 feet. Wave Detail: Northeast 6 feet at
7 seconds. A chance of showers with a slight chance of
thunderstorms.
.SATURDAY NIGHT...North to northeast winds 15 to 20 knots. Seas
4 to 6 feet, occasionally to 8 feet. Wave Detail: Northeast
6 feet at 6 seconds. A slight chance of showers and
thunderstorms.
.SUNDAY...North to northeast winds 15 to 20 knots. Seas 4 to
6 feet, occasionally to 8 feet. A chance of showers with a slight
chance of thunderstorms.
.SUNDAY NIGHT...Northeast winds 20 to 25 knots. Seas 5 to 8 feet,
occasionally to 10 feet. Showers with a slight chance of
thunderstorms.
.MONDAY...North to northeast winds 20 to 25 knots. Seas 5 to
8 feet, occasionally to 10 feet. Showers likely with a slight
chance of thunderstorms.
.MONDAY NIGHT...Northeast winds near 25 knots. Seas 7 to 10 feet,
occasionally to 13 feet. A chance of showers with a slight chance
of thunderstorms.
.TUESDAY...Northeast winds 20 to 25 knots. Seas 7 to 10 feet,
occasionally to 13 feet. A chance of showers with a slight chance
of thunderstorms.
.TUESDAY NIGHT...Northeast winds 20 to 25 knots. Seas 6 to
9 feet, occasionally to 11 feet. A chance of showers with a
slight chance of thunderstorms.
.WEDNESDAY...Northeast to east winds 20 to 25 knots, becoming
15 to 20 knots. Seas 5 to 8 feet, occasionally to 10 feet. A
chance of showers with a slight chance of thunderstorms.
.WEDNESDAY NIGHT...Northeast to east winds 15 to 20 knots. Seas
4 to 6 feet, occasionally to 8 feet. A chance of showers with a
slight chance of thunderstorms.

$$

GMZ033-034-241430-
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-
1024 PM EDT Fri Oct 23 2026

...SMALL CRAFT ADVISORY IN EFFECT...

.OVERNIGHT...Northeast winds near 20 knots. Seas 3 to 5 feet,
occasionally to 6 feet. Wave Detail: Northeast 5 feet at 5
seconds. A chance of showers with a slight chance of
thunderstorms.
.SATURDAY...Northeast winds near 20 knots. Seas 4 to 6 feet,
occasionally to 8 feet. Wave Detail: Northeast 5 feet at 5
seconds.
.SATURDAY NIGHT...North to northeast winds 20 to 25 knots. Seas
4 to 6 feet, occasionally to 8 feet. Wave Detail: North 5 feet at
6 seconds.
.SUNDAY...North to northeast winds 20 to 25 knots. Seas 5 to
7 feet, occasionally to 9 feet. A chance of showers with a slight
chance of thunderstorms.
.SUNDAY NIGHT...Northeast winds 25 to 30 knots. Gusts up to
35 knots in the evening. Seas 6 to 9 feet, occasionally to
11 feet. A chance of showers with a slight chance of
thunderstorms.
.MONDAY...North to northeast winds 20 to 25 knots. Seas 6 to
9 feet, occasionally to 11 feet. A chance of showers with a
slight chance of thunderstorms.
.MONDAY NIGHT...Northeast winds 25 to 30 knots. Seas 6 to 8 feet,
occasionally to 10 feet. A slight chance of showers.
.TUESDAY...Northeast winds 20 to 25 knots, becoming 15 to
20 knots in the afternoon. Seas 6 to 9 feet, occasionally to
11 feet, subsiding to 5 to 7 feet, occasionally to 9 feet in the
afternoon. A slight chance of showers.
.TUESDAY NIGHT...Northeast winds 20 to 25 knots. Seas 5 to
7 feet, occasionally to 9 feet. A slight chance of showers.
.WEDNESDAY...Northeast winds 15 to 20 knots. Seas 5 to 7 feet,
occasionally to 9 feet. A slight chance of showers.
.WEDNESDAY NIGHT...Northeast to east winds near 20 knots. Seas
3 to 5 feet, occasionally to 6 feet. A slight chance of showers
and thunderstorms.

$$