232
FZUS52 KKEY 232133
CWFKEY

Coastal Waters Forecast for the Florida Keys
National Weather Service Key West FL
433 PM EST Fri Jan 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.

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.

GMZ005-240945-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
433 PM EST Fri Jan 23 2026

.SYNOPSIS...Northeast to easterly light to gentle breezes will
persist through tonight. Weak troughing off the eastern coast of
Florida continues to fuel light to moderate showers across the
Straits. Shower coverage will diminish over the weekend ahead of a
potent cold front on Monday. Winds behind the front will rapidly
freshen to strong breezes. Near gale force winds are possible
Monday Night to Tuesday, but exactly how strong breezes get is
uncertain. The period of peak breezes will not last too long; by
Tuesday evening, expect breezes to slacken to fresh to strong.

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

18 NM South of Dry Tortugas Light...on Loggerhead Key.
16 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
15 NM South of Sand Key Light...off Key West.
13 NM South of Looe Key...off Big Pine Key.
13 NM Southeast of Sombrero Key Light...off Marathon.
12 NM Southeast of Alligator Reef Light...off Islamorada.
 7 NM Southeast of Molasses Reef Light...off Key Largo.
 4 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.

$$

GMZ031-240945-
Florida Bay including Barnes Sound, Blackwater Sound, and
Buttonwood Sound-
433 PM EST Fri Jan 23 2026

.TONIGHT...Northeast to east winds 5 to 10 knots. Bay waters
smooth to a light chop. Isolated showers.
.SATURDAY...Northeast to east winds 5 to 10 knots. Bay waters
smooth to a light chop. Isolated showers.
.SATURDAY NIGHT...East winds near 10 knots. Bay waters a light
chop.
.SUNDAY...East to southeast winds near 10 knots. Bay waters a
light chop.
.SUNDAY NIGHT...Southeast to south winds 5 to 10 knots, becoming
south to southwest. Bay waters smooth to a light chop. Isolated
showers.
.MONDAY...Southwest to west winds 5 to 10 knots, becoming west to
northwest 15 to 20 knots. Bay waters smooth to a light chop,
becoming choppy. Isolated showers.
.MONDAY NIGHT...Northwest to north winds 20 to 25 knots,
increasing to near 25 knots. Bay waters very rough, becoming
extremely rough.
.TUESDAY...North to northeast winds near 20 knots, decreasing to 15
to 20 knots. Bay waters rough, becoming choppy.
.TUESDAY NIGHT...North to northeast winds near 15 knots,
decreasing to 10 to 15 knots. Bay waters a moderate chop, becoming
a light to moderate chop.
.WEDNESDAY...Northeast winds 10 to 15 knots, decreasing to near
10 knots. Bay waters a light to moderate chop, becoming a light
chop.
.WEDNESDAY NIGHT...North winds near 10 knots, becoming northwest
to north 10 to 15 knots. Bay waters a light chop, becoming a
light to moderate chop. Isolated showers.

$$

GMZ032-035-240945-
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-
433 PM EST Fri Jan 23 2026

.TONIGHT...Northeast to east winds 5 to 10 knots. Seas 1 foot or
less. Nearshore waters smooth to a light chop. Isolated showers.
.SATURDAY...East winds near 10 knots. Seas around 1 foot.
Nearshore waters a light chop.
.SATURDAY NIGHT...East winds 10 to 15 knots. Seas 1 to 2 feet.
Nearshore waters a light to moderate chop.
.SUNDAY...East to southeast winds near 10 knots. Seas 1 to 2 feet.
Nearshore waters a light chop.
.SUNDAY NIGHT...Southeast to south winds 5 to 10 knots, becoming
south to southwest. Seas subsiding to 1 foot or less. Nearshore
waters smooth to a light chop. Isolated showers.
.MONDAY...Southwest to west winds 5 to 10 knots, becoming
northwest 15 to 20 knots. Seas 1 foot or less, building to 2 to 3
feet. Nearshore waters smooth to a light chop, becoming choppy.
Isolated showers.
.MONDAY NIGHT...Northwest to north winds near 20 knots,
increasing to near 25 knots. Seas 4 to 6 feet, occasionally to 8
feet. West of the Marquesas Keys, seas 5 to 7 feet, occasionally
to 9 feet, building to 7 to 9 feet, occasionally to 11 feet.
Nearshore waters rough, becoming extremely rough.
.TUESDAY...North to northeast winds near 25 knots, decreasing to
15 to 20 knots. Seas 4 to 6 feet, occasionally to 8 feet. West of
the Marquesas Keys, seas 7 to 9 feet, occasionally to 11 feet,
subsiding to 5 to 8 feet, occasionally to 10 feet. Nearshore
waters extremely rough, becoming choppy.
.TUESDAY NIGHT...North to northeast winds 15 to 20 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.
.WEDNESDAY AND WEDNESDAY NIGHT...Northeast winds 10 to 15 knots.
Seas 2 to 3 feet. Nearshore waters a light to moderate chop.
Isolated showers.

$$

GMZ042>044-240945-
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-
433 PM EST Fri Jan 23 2026

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

$$

GMZ052>055-072>075-240945-
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-
433 PM EST Fri Jan 23 2026

.TONIGHT...Northeast to east winds near 10 knots. Seas 2 to 3
feet. Wave Detail: Northeast to east 2 feet at 4 seconds. Isolated
showers.
.SATURDAY...East winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: East 3 feet at 4 seconds. Isolated showers.
.SATURDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 4 feet,
occasionally to 5 feet. Wave Detail: East 3 feet at 5 seconds.
.SUNDAY...East to southeast winds 10 to 15 knots. Seas 2 to 4
feet, occasionally to 5 feet.
.SUNDAY NIGHT...Southeast to south winds near 10 knots, becoming
south to southwest 5 to 10 knots. Seas 2 to 3 feet. Isolated
showers.
.MONDAY...Southwest to west winds 10 to 15 knots, becoming
northwest to north 15 to 20 knots. Seas 1 to 2 feet, building to
2 to 4 feet, occasionally to 5 feet. Isolated showers.
.MONDAY NIGHT...Northwest to north winds 20 to 25 knots, becoming
near 25 knots. Seas 4 to 6 feet, occasionally to 8 feet, building
to 5 to 8 feet, occasionally to 10 feet. Isolated showers.
.TUESDAY...North to northeast winds 20 to 25 knots, becoming
15 to 20 knots. Seas 7 to 10 feet, occasionally to 13 feet.
Isolated showers.
.TUESDAY NIGHT...Northeast winds 15 to 20 knots. Seas 6 to 8
feet, occasionally to 9 feet, subsiding to 5 to 7 feet,
occasionally to 8 feet. Isolated showers.
.WEDNESDAY...Northeast winds near 15 knots, decreasing to 10 to
15 knots. . Isolated showers.
.WEDNESDAY NIGHT...North winds 10 to 15 knots, increasing to near
15 knots. Seas 3 to 5 feet, occasionally to 6 feet. Isolated
showers.

$$

GMZ033-034-240945-
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-
433 PM EST Fri Jan 23 2026

.TONIGHT...North to northeast winds 5 to 10 knots, becoming
northeast to east. Seas around 1 foot. Wave Detail: North to
northeast 1 foot at 3 seconds.
.SATURDAY...East winds near 10 knots. Seas 1 to 2 feet. Wave
Detail East 1 foot at 2 seconds.
.SATURDAY NIGHT...East to southeast winds 10 to 15 knots. Seas
1 to 2 feet. Wave Detail: East to southeast 2 feet at 3 seconds.
.SUNDAY...Southeast winds near 10 knots. Seas 1 to 2 feet.
.SUNDAY NIGHT...Southeast to south winds 5 to 10 knots, becoming
south to southwest. Seas 1 to 2 feet. Isolated showers.
.MONDAY...Southwest to west winds 10 to 15 knots, becoming
northwest to north 20 to 25 knots. Seas 1 to 2 feet, building to
3 to 5 feet, occasionally to 6 feet in the afternoon. Scattered
showers.
.MONDAY NIGHT...North winds 20 to 25 knots, increasing to near 25
knots. Seas 5 to 8 feet, occasionally to 10 feet, building to 7
to 10 feet, occasionally to 13 feet.
.TUESDAY...North to northeast winds 20 to 25 knots, decreasing to 15
to 20 knots. Seas 7 to 10 feet, occasionally to 13 feet,
subsiding to 5 to 7 feet, occasionally to 9 feet.
.TUESDAY NIGHT...North to northeast winds near 15 knots. Seas 4
to 6 feet, occasionally to 8 feet.
.WEDNESDAY...Northeast winds near 15 knots, decreasing to 10 to
15 knots. Seas 2 to 4 feet, occasionally to 5 feet.
.WEDNESDAY NIGHT...North winds 10 to 15 knots, increasing to
15 to 20 knots. Seas 2 to 4 feet, occasionally to 5 feet.
Isolated showers.

$$