426
FZUS52 KKEY 012124
CWFKEY

Coastal Waters Forecast for the Florida Keys
National Weather Service Key West FL
424 PM EST Sun Feb 1 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.

GMZ005-020930-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
424 PM EST Sun Feb 1 2026

.SYNOPSIS...Patches of sprinkles will remain possible across the
far western waters through the early evening. Fresh to occasional
strong northwest breezes winds overnight through Monday morning
will result hazardous marine conditions. North to northeast
breezes will slacken appreciably on Tuesday, becoming gentle to
moderate. Near the end of the week, another cold front may push
through the area, and could bring another push of freshening
breezes and building seas.

The Approximate Shoreward Edge of the Gulf Stream as of January
28...

30 NM South of Dry Tortugas Light...on Loggerhead Key.
14 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
12 NM South of Sand Key Light...off Key West.
15 NM South of Looe Key...off Big Pine Key.
16 NM Southeast of Sombrero Key Light...off Marathon.
11 NM Southeast of Alligator Reef Light...off Islamorada.
 7 NM Southeast of Molasses Reef Light...off Key Largo.
 5 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.

$$

GMZ031-020930-
Florida Bay including Barnes Sound, Blackwater Sound, and
Buttonwood Sound-
424 PM EST Sun Feb 1 2026

...SMALL CRAFT ADVISORY IN EFFECT...

.TONIGHT...Northwest to north winds near 20 knots. Bay waters
rough.
.MONDAY...Northwest to north winds 15 to 20 knots early,
decreasing to 10 to 15 knots. Bay waters choppy, becoming a light
to moderate chop.
.MONDAY NIGHT...North winds near 15 knots. Bay waters a moderate
chop.
.TUESDAY...North to northeast winds decreasing to 10 to 15 knots.
Bay waters becoming a light to moderate chop.
.TUESDAY NIGHT...Northeast to east winds near 10 knots. Bay
waters a light chop.
.WEDNESDAY...Northeast winds 5 to 10 knots. Bay waters smooth to
a light chop.
.WEDNESDAY NIGHT...Northwest winds 5 to 10 knots. Bay waters
smooth to a light chop. Isolated showers.
.THURSDAY...West to northwest winds near 10 knots, increasing to
15 to 20 knots. Bay waters a light chop, becoming choppy.
Isolated showers.
.THURSDAY NIGHT...Northwest winds near 20 knots. Bay waters
rough. Isolated showers.
.FRIDAY...Northwest to north winds 15 to 20 knots. Bay waters
choppy.
.FRIDAY NIGHT...Northwest winds near 15 knots. Bay waters a
moderate chop.

$$

GMZ032-035-020930-
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-
424 PM EST Sun Feb 1 2026

...SMALL CRAFT ADVISORY IN EFFECT...

.TONIGHT...Northwest to north winds near 20 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 rough.
.MONDAY...North winds 15 to 20 knots, decreasing to near 15 knots.
Seas 2 to 4 feet, occasionally to 5 feet. West of the Marquesas
Keys, seas 5 to 6 feet, occasionally to 8 feet, subsiding to 3 to
4 feet, occasionally to 5 feet. Nearshore waters choppy, becoming
a moderate chop.
.MONDAY NIGHT...North to northeast winds near 15 knots. Seas 2 to
3 feet, except 3 to 4 feet, occasionally to 5 feet west of the
Marquesas Keys. Nearshore waters a moderate chop.
.TUESDAY...Northeast winds decreasing to 10 to 15 knots. Seas 2
to 3 feet, subsiding to 1 to 2 feet. Nearshore waters becoming a
light to moderate chop.
.TUESDAY NIGHT...Northeast winds 10 to 15 knots. Seas 1 to 2
feet. Nearshore waters a light to moderate chop.
.WEDNESDAY...North to northeast winds near 10 knots, decreasing
to 5 to 10 knots. Seas subsiding to around 1 foot. West of the
Marquesas Keys, seas 1 to 2 feet Nearshore waters a light chop,
becoming smooth to a light chop.
.WEDNESDAY NIGHT...Northwest to north winds 5 to 10 knots. Seas
subsiding to 1 foot or less. Nearshore waters smooth to a light
chop. Isolated showers.
.THURSDAY...West to northwest winds near 10 knots, increasing to
near 20 knots. Seas around 1 foot, building to 2 to 3 feet.
Nearshore waters a light chop, becoming rough. Scattered showers.
.THURSDAY NIGHT...Northwest to north winds 20 to 25 knots,
decreasing to near 20 knots. Seas building to 3 to 5 feet,
occasionally to 6 feet, except building to 4 to 6 feet,
occasionally to 8 feet west of the Marquesas Keys. Nearshore
waters very rough, becoming rough. Isolated showers.
.FRIDAY...Northwest to north winds 15 to 20 knots. Seas 2 to
4 feet, occasionally to 5 feet, except 4 to 5 feet, occasionally
to 6 feet west of the Marquesas Keys. Nearshore waters choppy.
.FRIDAY NIGHT...Northwest to north winds 15 to 20 knots,
decreasing to near 15 knots. Seas 2 to 3 feet, except 3 to 4 feet
west of the Marquesas Keys. Nearshore waters choppy, becoming a
moderate chop.

$$

GMZ042>044-020930-
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-
424 PM EST Sun Feb 1 2026

...SMALL CRAFT ADVISORY IN EFFECT...

.TONIGHT...Northwest to north winds 20 to 25 knots, decreasing to
near 20 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, becoming rough.
.MONDAY...North winds 15 to 20 knots, decreasing to near 15 knots.
Seas 2 to 3 feet. West of Cosgrove Shoal Light, seas 5 to 6 feet,
occasionally to 8 feet, subsiding to 3 to 4 feet, occasionally to
5 feet. Nearshore waters choppy, becoming a moderate chop.
.MONDAY NIGHT...North to northeast winds near 15 knots. Seas 1 to
2 feet, except 3 to 4 feet, occasionally to 5 feet west of
Cosgrove Shoal Light. Nearshore waters a moderate chop.
.TUESDAY...Northeast winds decreasing to 10 to 15 knots. Seas 1
to 2 feet, except 2 to 3 feet west of Cosgrove Shoal Light.
Nearshore waters becoming a light to moderate chop.
.TUESDAY NIGHT...Northeast to east winds 10 to 15 knots. Seas
1 to 2 feet. Nearshore waters a light to moderate chop.
.WEDNESDAY...Northeast winds near 10 knots. Seas 1 to 2 feet.
Nearshore waters a light chop.
.WEDNESDAY NIGHT...North to northeast winds 5 to 10 knots,
becoming northwest. Seas around 1 foot. Nearshore waters smooth
to a light chop. Isolated showers.
.THURSDAY...West to northwest winds near 10 knots, increasing to
near 20 knots. Seas building to 1 to 2 feet, except building to 2
to 3 feet west of Cosgrove Shoal Light. Nearshore waters a light
to moderate chop, becoming rough. Scattered showers.
.THURSDAY NIGHT...Northwest to north winds 20 to 25 knots,
decreasing to near 20 knots. Seas building to 2 to 3 feet, except
building to 4 to 6 feet, occasionally to 8 feet west of Cosgrove
Shoal Light. Nearshore waters very rough, becoming rough. Isolated
showers.
.FRIDAY...Northwest to north 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.
.FRIDAY NIGHT...Northwest to north winds 15 to 20 knots,
decreasing to near 15 knots. Seas 2 to 3 feet, except 3 to 4
feet, occasionally to 5 feet west of Cosgrove Shoal Light.
Nearshore waters choppy, becoming a moderate chop.

$$

GMZ052>055-072>075-020930-
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-
424 PM EST Sun Feb 1 2026

...SMALL CRAFT ADVISORY IN EFFECT...

.TONIGHT...Northwest to north winds 20 to 25 knots. Seas 6 to
10 feet, occasionally to 13 feet, subsiding to 5 to 7 feet,
occasionally to 9 feet. Wave Detail: West to northwest 8 feet at
10 seconds and northeast to east 4 feet at 9 seconds. Isolated
showers.
.MONDAY...North winds 20 to 25 knots, decreasing to 15 to 20
knots. Seas 5 to 7 feet, occasionally to 9 feet, subsiding to 4 to
6 feet, occasionally to 8 feet. Wave Detail: West to northwest 6
feet at 9 seconds and north to northeast 4 feet at 4 seconds.
.MONDAY NIGHT...North to northeast winds 15 to 20 knots. Seas
4 to 6 feet, occasionally to 8 feet. Wave Detail: North 5 feet at
7 seconds and west 1 foot at 8 seconds.
.TUESDAY...Northeast winds near 15 knots. Seas 3 to 5 feet,
occasionally to 6 feet.
.TUESDAY NIGHT...Northeast to east winds decreasing to 10 to 15
knots. Seas 3 to 4 feet, occasionally to 5 feet. Isolated showers.
.WEDNESDAY...Northeast to east winds decreasing to near 10 knots.
Seas 2 to 3 feet. Isolated showers.
.WEDNESDAY NIGHT...North to northeast winds 5 to 10 knots. Seas
subsiding to 1 to 2 feet. Isolated showers.
.THURSDAY...Northwest winds near 10 knots, increasing to near 20
knots. Seas 1 to 2 feet, building to 3 to 4 feet. Isolated
showers.
.THURSDAY NIGHT...Northwest to north winds 20 to 25 knots. Seas
5 to 7 feet, occasionally to 9 feet. Isolated showers.
.FRIDAY...Northwest to north winds 20 to 25 knots, decreasing to 15
to 20 knots. Seas 5 to 7 feet, occasionally to 9 feet, subsiding
to 4 to 5 feet, occasionally to 6 feet.
.FRIDAY NIGHT...Northwest to north winds 15 to 20 knots. Seas
subsiding to 2 to 4 feet, occasionally to 5 feet.

$$

GMZ033-034-020930-
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-
424 PM EST Sun Feb 1 2026

...SMALL CRAFT ADVISORY IN EFFECT...

.TONIGHT...Northwest to north winds near 20 knots. Seas 5 to 8
feet, occasionally to 10 feet, subsiding to 4 to 7 feet,
occasionally to 9 feet. Wave Detail: Northwest 8 feet at 9
seconds.
.MONDAY...North winds 15 to 20 knots, decreasing to near 15 knots.
Seas 4 to 6 feet, occasionally to 8 feet, subsiding to 3 to 4
feet, occasionally to 5 feet in the afternoon. Wave Detail:
Northwest 6 feet at 8 seconds, becoming northwest 4 feet at 7
seconds.
.MONDAY NIGHT...North to northeast winds near 15 knots. Seas 3 to
4 feet, occasionally to 5 feet. Wave Detail: Northwest to north
4 feet at 7 seconds.
.TUESDAY...Northeast winds decreasing to 10 to 15 knots. Seas 2
to 3 feet.
.TUESDAY NIGHT...Northeast to east winds 10 to 15 knots. Seas
1 to 2 feet.
.WEDNESDAY...Northeast winds near 10 knots. Seas 1 to 2 feet.
.WEDNESDAY NIGHT...North winds 5 to 10 knots, becoming west to
northwest near 10 knots. Seas around 1 foot. Isolated showers.
.THURSDAY...West winds 10 to 15 knots, becoming northwest near 20
knots. Seas 1 to 2 feet, building to 2 to 4 feet, occasionally to
5 feet. Scattered showers.
.THURSDAY NIGHT...Northwest to north winds 20 to 25 knots,
decreasing to near 20 knots. Seas building to 5 to 7 feet,
occasionally to 9 feet. Isolated showers.
.FRIDAY...Northwest to north winds 15 to 20 knots, decreasing to
near 15 knots. Seas subsiding to 3 to 5 feet, occasionally to 6
feet.
.FRIDAY NIGHT...Northwest to north winds near 15 knots. Seas 3 to
4 feet, occasionally to 5 feet.

$$