795
FZUS52 KKEY 222123
CWFKEY

Coastal Waters Forecast for the Florida Keys
National Weather Service Key West FL
423 PM EST Wed Jan 22 2025

Florida Bay, Hawk Channel and Straits of Florida from Ocean Reef
to south of Dry Tortugas, and the extreme southeastern Gulf of
Mexico, 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.

GMZ005-230330-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
423 PM EST Wed Jan 22 2025

.SYNOPSIS...Strong northerly breezes will continue this evening,
then briefly slacken overnight into Thursday morning. A
reinforcing cold front will then push through the marine zones
Thursday night, with yet another surge of strong northerly winds
expected from Friday into the first half of the weekend. High
pressure will then slide into the Southeast U.S., allowing breezes
to relax, becoming moderate to fresh and clocking around to the
east.

The Approximate Shoreward Edge of the Gulf Stream as of January 18...

24 NM South of Dry Tortugas Light...on Loggerhead Key.
23 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
21 NM South of Sand Key Light...off Key West.
18 NM South of Looe Key...off Big Pine Key
20 NM South of Sombrero Key Light...off Marathon.
24 NM Southeast of Alligator Reef Light...off Islamorada.
11 NM Southeast of Molasses Reef Light...off Key Largo.
10 NM East of Carysfort Reef Light...off Ocean Reef.

Gulf Stream Information Courtesy of the National Weather Service in Key
West based on products from the Real Time Ocean Forecast System and
NASA SPoRT.

$$

GMZ031-230330-
Florida Bay including Barnes Sound, Blackwater Sound, and
Buttonwood Sound-
423 PM EST Wed Jan 22 2025

...SMALL CRAFT ADVISORY IN EFFECT...

.TONIGHT...North to northeast winds near 20 knots, decreasing
to 10 to 15 knots after midnight. Bay waters rough, becoming a
light to moderate chop. Scattered showers.
.THURSDAY...North to northeast winds 10 to 15 knots, becoming
northwest to north near 15 knots in the afternoon. Bay waters a
light to moderate chop, becoming a moderate chop. Scattered
showers.
.THURSDAY NIGHT...Northwest to north winds 15 to 20 knots,
decreasing to near 15 knots. Bay waters choppy, becoming a
moderate chop. Isolated showers.
.FRIDAY...Northwest to north winds near 15 knots, increasing to
15 to 20 knots in the afternoon. Bay waters a light to moderate
chop, becoming choppy. Isolated showers.
.FRIDAY NIGHT...North winds near 20 knots, becoming north to
northeast 20 to 25 knots. Bay waters rough, becoming very rough.
.SATURDAY...North to northeast winds near 20 knots, decreasing to 15
to 20 knots. Bay waters rough, becoming choppy.
.SATURDAY NIGHT...Northeast to east winds 15 to 20 knots,
decreasing to near 15 knots. Bay waters choppy, becoming a
moderate chop.
.SUNDAY...Northeast to east winds increasing to 15 to 20 knots.
Bay waters becoming choppy.
.SUNDAY NIGHT...Northeast to east winds near 15 knots. Bay waters
a moderate chop.
.MONDAY...Northeast to east winds decreasing to 10 to 15 knots.
Bay waters becoming a light to moderate chop.
.MONDAY NIGHT...Northeast winds 10 to 15 knots. Bay waters a
light to moderate chop.

$$

GMZ032-035-230330-
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-
423 PM EST Wed Jan 22 2025

...SMALL CRAFT ADVISORY IN EFFECT...

.TONIGHT...North to northeast winds near 20 knots, decreasing to
15 to 20 knots after midnight. Seas 3 to 5 feet, occasionally to
6 feet, subsiding to 2 to 4 feet. West of the Marquesas Keys, seas
5 to 7 feet, occasionally to 9 feet, subsiding to 4 to 5 feet.
Nearshore waters rough, becoming choppy. Scattered showers.
.THURSDAY...Northwest to north winds near 15 knots, increasing 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 the Marquesas Keys.
Nearshore waters a moderate chop, becoming choppy. Isolated
showers.
.THURSDAY NIGHT...Northwest to north winds near 20 knots,
decreasing to 15 to 20 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 rough, becoming choppy. Isolated
showers.
.FRIDAY...Northwest to north winds 15 to 20 knots, becoming 20 to
25 knots in the afternoon. Seas 2 to 4 feet, occasionally to
5 feet. Nearshore waters choppy, becoming very rough. Isolated
showers.
.FRIDAY NIGHT...North winds near 25 knots. Seas 3 to 5 feet,
occasionally to 6 feet, except building to 6 to 8 feet,
occasionally to 10 feet west of the Marquesas Keys. Nearshore
waters extremely rough.
.SATURDAY...North to northeast winds 20 to 25 knots, decreasing to
15 to 20 knots in the afternoon. Seas 3 to 5 feet, occasionally to
6 feet, except 5 to 7 feet, occasionally to 9 feet west of the
Marquesas Keys. Nearshore waters very rough, becoming choppy.
.SATURDAY NIGHT...Northeast to east winds 15 to 20 knots. Seas
2 to 4 feet, occasionally to 5 feet, except 4 to 5 feet west of
the Marquesas Keys. Nearshore waters choppy.
.SUNDAY...Northeast to east winds 15 to 20 knots. Seas 2 to
3 feet, except 3 to 4 feet, occasionally to 5 feet west of the
Marquesas Keys. Nearshore waters choppy.
.SUNDAY NIGHT...Northeast to east winds 15 to 20 knots, decreasing
to near 15 knots. Seas 1 to 3 feet, except 3 to 4 feet west of the
Marquesas Keys. Nearshore waters choppy, becoming a moderate
chop.
.MONDAY...Northeast to east winds decreasing to 10 to 15 knots.
Seas 1 to 2 feet, except 2 to 3 feet west of the Marquesas Keys.
Nearshore waters becoming a light to moderate chop.
.MONDAY NIGHT...Northeast winds 10 to 15 knots. Seas 1 to 2 feet,
except 2 to 3 feet west of the Marquesas Keys. Nearshore waters a
light to moderate chop.

$$

GMZ042-230330-
Hawk Channel from Ocean Reef to Craig Key out to the reef-
423 PM EST Wed Jan 22 2025

...SMALL CRAFT ADVISORY IN EFFECT...

.TONIGHT...North to northeast winds near 20 knots, decreasing to
near 15 knots after midnight. Seas 2 to 3 feet. Nearshore waters
rough, becoming a moderate chop. Scattered showers.
.THURSDAY...North to northeast winds 10 to 15 knots, becoming
northwest near 15 knots in the afternoon. Seas 2 to 3 feet.
Nearshore waters a light to moderate chop, becoming a moderate
chop. Scattered showers.
.THURSDAY NIGHT...Northwest to north winds near 15 knots. Seas
around 2 feet. Nearshore waters a moderate chop. Isolated
showers.
.FRIDAY...Northwest winds near 15 knots, increasing to near 20
knots. Seas around 2 feet. Nearshore waters a moderate chop,
becoming rough. Isolated showers.
.FRIDAY NIGHT...North winds 20 to 25 knots. Seas 2 to 3 feet.
Nearshore waters very rough.
.SATURDAY...North to northeast winds near 20 knots. Seas 2 to
4 feet, occasionally to 5 feet. Nearshore waters rough.
.SATURDAY NIGHT...Northeast to east winds near 20 knots,
decreasing to 15 to 20 knots. Seas 2 to 4 feet, occasionally to 5
feet. Nearshore waters rough, becoming choppy.
.SUNDAY...Northeast to east winds 15 to 20 knots. Seas 2 to
4 feet, occasionally to 5 feet. Nearshore waters choppy.
.SUNDAY NIGHT AND MONDAY...Northeast to east winds near 15 knots.
Seas 2 to 4 feet, occasionally to 5 feet. Nearshore waters a
moderate chop.
.MONDAY NIGHT...Northeast winds 10 to 15 knots. Seas 2 to 3 feet.
Nearshore waters a light to moderate chop. Isolated showers.

$$

GMZ043-044-230330-
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-
423 PM EST Wed Jan 22 2025

...SMALL CRAFT ADVISORY IN EFFECT...

.TONIGHT...North to northeast winds 20 to 25 knots early,
decreasing to 15 to 20 knots after midnight. Seas 2 to 4 feet,
subsiding to 2 to 3 feet. West of Cosgrove Shoal Light, seas 5 to
7 feet, occasionally to 9 feet, subsiding to 4 to 5 feet.
Nearshore waters very rough, becoming choppy. Scattered showers.
.THURSDAY...Northwest to north winds near 15 knots, increasing to
15 to 20 knots. Seas 2 to 3 feet, except 3 to 5 feet, occasionally
to 6 feet west of Cosgrove Shoal Light. Nearshore waters a
moderate chop, becoming choppy. Isolated showers.
.THURSDAY NIGHT...Northwest to north winds near 20 knots,
decreasing to 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 rough, becoming choppy. Isolated showers.
.FRIDAY...Northwest to north winds 15 to 20 knots, increasing to
20 to 25 knots in the afternoon. Seas 2 to 3 feet, except 4 to 5
feet, occasionally to 6 feet west of Cosgrove Shoal Light.
Nearshore waters choppy, becoming very rough. Isolated showers.
.FRIDAY NIGHT...North to northeast winds near 25 knots. Seas 2 to
3 feet. West of Cosgrove Shoal Light, seas building to 5 to 7
feet, occasionally to 9 feet. Nearshore waters extremely rough.
.SATURDAY...Northeast winds 20 to 25 knots, decreasing to near 20
knots. Seas 2 to 3 feet, except 5 to 7 feet, occasionally to 9
feet west of Cosgrove Shoal Light. Nearshore waters very rough,
becoming rough.
.SATURDAY NIGHT...Northeast to east 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.
.SUNDAY...Northeast to east winds 15 to 20 knots. Seas 2 to
4 feet, occasionally to 5 feet. Nearshore waters choppy.
.SUNDAY NIGHT...Northeast to east winds 15 to 20 knots. Seas 2 to
4 feet, occasionally to 5 feet. Nearshore waters choppy. Isolated
showers.
.MONDAY...Northeast to east winds near 15 knots. Seas 2 to
3 feet. Nearshore waters a moderate chop.
.MONDAY NIGHT...Northeast winds near 15 knots. Seas 2 to 3 feet.
Nearshore waters a moderate chop.

$$

GMZ052-072-230330-
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-
423 PM EST Wed Jan 22 2025

...SMALL CRAFT ADVISORY IN EFFECT...

.TONIGHT...North to northeast winds 20 to 25 knots, decreasing to
near 15 knots after midnight. Seas 6 to 9 feet, occasionally to
11 feet, subsiding to 5 to 7 feet. Wave Detail: North to
northeast 7 feet at 10 seconds. Scattered showers.
.THURSDAY...Northeast to east winds 10 to 15 knots, becoming west
to northwest near 15 knots in the afternoon. Seas 4 to 6 feet,
occasionally to 8 feet, subsiding to 3 to 4 feet, occasionally to
5 feet in the afternoon. Wave Detail: Northeast 5 feet at 8
seconds, becoming north to northeast 4 feet at 9 seconds and
northwest 2 feet at 3 seconds. Scattered showers.
.THURSDAY NIGHT...Northwest to north winds 15 to 20 knots,
decreasing to near 15 knots after midnight. Seas 3 to 4 feet,
occasionally to 5 feet. Wave Detail: Northwest to north 3 feet at
4 seconds and north to northeast 3 feet at 9 seconds. Isolated
showers.
.FRIDAY...Northwest winds near 15 knots, increasing to 20 to
25 knots late. Seas 3 to 5 feet, occasionally to 6 feet. Isolated
showers.
.FRIDAY NIGHT...North winds 20 to 25 knots, increasing to near 25
knots. Seas building to 5 to 7 feet, occasionally to 9 feet.
.SATURDAY...Northeast winds near 25 knots, decreasing to 20 to 25
knots. Seas 6 to 9 feet, occasionally to 11 feet.
.SATURDAY NIGHT...Northeast to east winds near 20 knots. Seas
5 to 7 feet, occasionally to 9 feet.
.SUNDAY...Northeast to east winds 15 to 20 knots. Seas 5 to
6 feet, occasionally to 8 feet. Isolated showers.
.SUNDAY NIGHT AND MONDAY...Northeast to east winds 15 to 20
knots. Seas 4 to 5 feet, occasionally to 6 feet. Isolated showers.
.MONDAY NIGHT...Northeast winds 15 to 20 knots. Seas 3 to 5 feet,
occasionally to 6 feet. Isolated showers.

$$

GMZ053>055-073>075-230330-
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-
423 PM EST Wed Jan 22 2025

...SMALL CRAFT ADVISORY IN EFFECT...

.TONIGHT...North to northeast winds 20 to 25 knots, decreasing to
15 to 20 knots after midnight. Seas 6 to 9 feet, occasionally to
11 feet, subsiding to 5 to 7 feet, occasionally to 9 feet after
midnight. Wave Detail: Northwest 7 feet at 10 seconds and
northeast 4 feet at 5 seconds, becoming northeast 5 feet at 6
seconds and northwest 5 feet at 9 seconds. Scattered showers.
.THURSDAY...Northwest to north winds near 15 knots, increasing to
15 to 20 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave
Detail: North 4 feet at 7 seconds. Isolated showers.
.THURSDAY NIGHT...Northwest to north winds near 20 knots,
decreasing to 15 to 20 knots. Seas 4 to 6 feet, occasionally to 8
feet. Wave Detail: North to northeast 4 feet at 6 seconds.
Isolated showers.
.FRIDAY...Northwest to north winds 15 to 20 knots, becoming 20 to
25 knots in the afternoon. Seas 4 to 6 feet, occasionally to
8 feet. Isolated showers.
.FRIDAY NIGHT...North winds near 25 knots. Seas building to 5 to
8 feet, occasionally to 10 feet.
.SATURDAY...Northeast winds near 25 knots, decreasing to near 20
knots. Seas 6 to 9 feet, occasionally to 11 feet.
.SATURDAY NIGHT...Northeast to east winds near 20 knots. Seas
6 to 7 feet, occasionally to 9 feet.
.SUNDAY...Northeast to east winds 15 to 20 knots. Seas 5 to 6
feet, occasionally to 8 feet. Isolated showers.
.SUNDAY NIGHT...Northeast to east winds 15 to 20 knots. Seas 5 to
6 feet, occasionally to 8 feet. Isolated showers.
.MONDAY...Northeast to east winds 15 to 20 knots. Seas 4 to
5 feet, occasionally to 6 feet. Isolated showers.
.MONDAY NIGHT...Northeast winds 15 to 20 knots. Seas 3 to 5 feet,
occasionally to 6 feet. Isolated showers.

$$

GMZ033-034-230330-
Gulf waters from East Cape Sable to Chokoloskee 20 to 60 NM out
and beyond 5 fathoms-
Gulf of Mexico including Dry Tortugas and Rebecca Shoal Channel-
423 PM EST Wed Jan 22 2025

...SMALL CRAFT ADVISORY IN EFFECT...

.TONIGHT...North to northeast winds near 20 knots, decreasing to
15 to 20 knots after midnight. Seas 5 to 7 feet, occasionally to
9 feet, subsiding to 3 to 5 feet. Wave Detail: North 6 feet at 6
seconds. Scattered showers.
.THURSDAY...North winds 15 to 20 knots. Seas 3 to 5 feet,
occasionally to 6 feet. Wave Detail: Northwest to north 4 feet at
7 seconds and northeast 2 feet at 4 seconds. Isolated showers.
.THURSDAY NIGHT...Northwest to north winds near 20 knots,
decreasing to 15 to 20 knots. Seas 4 to 6 feet, occasionally to 8
feet. Wave Detail: Northwest to north 5 feet at 6 seconds.
Isolated showers.
.FRIDAY...Northwest to north winds 15 to 20 knots, increasing to 20
to 25 knots. Seas 4 to 6 feet, occasionally to 8 feet. Isolated
showers.
.FRIDAY NIGHT...North winds near 25 knots. Seas building to 6 to
8 feet, occasionally to 10 feet.
.SATURDAY...North to northeast winds 20 to 25 knots, decreasing to
15 to 20 knots in the afternoon. Seas 5 to 7 feet, occasionally to
9 feet.
.SATURDAY NIGHT...Northeast to east winds 15 to 20 knots. Seas
3 to 4 feet, occasionally to 5 feet.
.SUNDAY AND SUNDAY NIGHT...Northeast to east winds 15 to 20
knots. Seas 2 to 4 feet, occasionally to 5 feet.
.MONDAY...Northeast winds near 15 knots, decreasing to 10 to 15
knots. Seas 2 to 4 feet, occasionally to 5 feet.
.MONDAY NIGHT...Northeast winds increasing to near 15 knots. Seas
2 to 3 feet.

$$