Coastal Waters Forecast
Issued by NWS Key West, FL

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FZUS52 KKEY 102125
CWFKEY

Coastal Waters Forecast for the Florida Keys
National Weather Service Key West FL
425 PM EST Tue Feb 10 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.

GMZ005-110930-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
425 PM EST Tue Feb 10 2026

.SYNOPSIS...High pressure off the Southeast U.S. coastline will
slowly meander east out across the Atlantic. This will maintain
gentle to moderate breezes across much of the Florida Keys coastal
waters through at least Wednesday. Towards the end of the week,
the high will flatten across Florida, leading to slackening
breezes with a couple periods of brief light and variable breezes.
Low pressure developing across the ARK-LA-TEX region and high
pressure off the Southeast U.S. coastline will result in
freshening east to southeast breezes over the weekend.

The Approximate Shoreward Edge of the Gulf Stream as of February
4...

17 NM South of Dry Tortugas Light...on Loggerhead Key.
15 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
14 NM South of Sand Key Light...off Key West.
17 NM South of Looe Key...off Big Pine Key.
14 NM Southeast of Sombrero Key Light...off Marathon.
 9 NM Southeast of Alligator Reef Light...off Islamorada.
 4 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.

$$

GMZ031-110930-
Florida Bay including Barnes Sound, Blackwater Sound, and
Buttonwood Sound-
425 PM EST Tue Feb 10 2026

.TONIGHT...Northeast to east winds near 10 knots, decreasing to 5
to 10 knots. Bay waters a light chop, becoming smooth to a light
chop.
.WEDNESDAY...Northeast to east winds 5 to 10 knots, becoming east.
Bay waters smooth to a light chop.
.WEDNESDAY NIGHT...East to southeast winds near 5 knots, becoming
variable. Bay waters smooth.
.THURSDAY...Variable winds near 5 knots. Bay waters smooth.
.THURSDAY NIGHT...West to northwest winds near 5 knots. Bay
waters smooth.
.FRIDAY...Variable winds near 5 knots. Bay waters smooth.
.FRIDAY NIGHT...Winds becoming northeast 5 to 10 knots. Bay
waters becoming smooth to a light chop.
.SATURDAY...Northeast to east winds 5 to 10 knots, becoming east
and increasing to near 10 knots. Bay waters smooth to a light
chop, becoming a light chop.
.SATURDAY NIGHT...East to southeast winds 10 to 15 knots,
increasing to near 15 knots. Bay waters a light to moderate chop,
becoming a moderate chop.
.SUNDAY...Southeast to south winds near 15 knots. Bay waters a
moderate chop. Isolated showers.
.SUNDAY NIGHT...South to southwest winds 10 to 15 knots. Bay
waters a light to moderate chop. Scattered showers.

$$

GMZ032-035-110930-
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-
425 PM EST Tue Feb 10 2026

.TONIGHT...Northeast to east winds near 10 knots, increasing to
10 to 15 knots, except increasing to near 15 knots west of the
Marquesas Keys. Seas around 1 foot, except 2 to 3 feet west of
the Marquesas Keys. Nearshore waters a light chop, becoming a
light to moderate chop, except becoming a moderate chop west of
the Marquesas Keys.
.WEDNESDAY...Northeast to east winds decreasing to 5 to 10 knots,
becoming east. Seas 1 foot or less. Nearshore waters becoming
smooth to a light chop.
.WEDNESDAY NIGHT...East winds 5 to 10 knots, becoming variable.
Seas 1 foot or less, except subsiding to 1 to 2 feet west of the
Marquesas Keys. Nearshore waters smooth to a light chop.
.THURSDAY...Variable winds near 5 knots. Seas 1 foot or less.
Nearshore waters smooth.
.THURSDAY NIGHT...Northwest to north winds near 5 knots. Seas
1 foot or less. Nearshore waters smooth.
.FRIDAY...Variable winds near 5 knots. Seas 1 foot or less.
Nearshore waters smooth.
.FRIDAY NIGHT...Winds becoming northeast 5 to 10 knots. Seas 1
foot or less. Nearshore waters becoming smooth to a light chop.
.SATURDAY...Northeast to east winds near 10 knots, becoming east
and increasing to 10 to 15 knots. Seas 1 foot or less, building
to around 1 foot. West of the Marquesas Keys, seas around 1 foot,
building to around 2 feet. Nearshore waters a light chop, becoming
a light to moderate chop.
.SATURDAY NIGHT...East to southeast winds 10 to 15 knots,
becoming southeast and increasing to 15 to 20 knots. Seas 1 to 2
feet, except building to 2 to 4 feet, occasionally to 5 feet west
of the Marquesas Keys. Nearshore waters a light to moderate chop,
becoming choppy.
.SUNDAY...Southeast to south 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. Isolated
showers.
.SUNDAY NIGHT...South to southwest winds 10 to 15 knots. Seas 1
to 2 feet. Nearshore waters a light to moderate chop. Scattered
showers.

$$

GMZ042>044-110930-
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-
425 PM EST Tue Feb 10 2026

.TONIGHT...East winds 10 to 15 knots, except increasing to near
15 knots west of Cosgrove Shoal Light. Seas 2 to 3 feet, except 3
to 4 feet west of Cosgrove Shoal Light. Nearshore waters a light
to moderate chop, except becoming a moderate chop west of Cosgrove
Shoal Light.
.WEDNESDAY...East winds decreasing to 5 to 10 knots. Seas around
2 feet, except subsiding to 2 to 3 feet west of Cosgrove Shoal
Light. Nearshore waters becoming smooth to a light chop.
.WEDNESDAY NIGHT...East winds 5 to 10 knots, becoming variable and
decreasing to near 5 knots. Seas around 2 feet, subsiding to 1 to
2 feet. Nearshore waters smooth to a light chop, becoming smooth.
.THURSDAY...Variable winds 5 to 10 knots, decreasing to near 5
knots. Seas around 1 foot. Nearshore waters smooth to a light
chop, becoming smooth.
.THURSDAY NIGHT...Northwest to north winds near 5 knots, becoming
north to northeast. Seas 1 foot or less. Nearshore waters smooth.
.FRIDAY...Northeast to east winds near 5 knots. Seas 1 foot or
less. Nearshore waters smooth.
.FRIDAY NIGHT...Northeast to east winds near 5 knots, increasing
to 5 to 10 knots. Seas 1 foot or less, building to around 1 foot.
Nearshore waters smooth, becoming smooth to a light chop.
.SATURDAY...Northeast to east winds near 10 knots, becoming east
and increasing to near 15 knots. Seas 1 to 2 feet, building to 2
to 3 feet. Nearshore waters a light chop, becoming a moderate
chop.
.SATURDAY NIGHT...East to southeast winds 15 to 20 knots, becoming
southeast. Seas 2 to 4 feet, occasionally to 5 feet. Nearshore
waters choppy.
.SUNDAY...Southeast winds 15 to 20 knots, becoming southeast to
south near 15 knots. Seas 3 to 4 feet, occasionally to 5 feet.
Nearshore waters choppy, becoming a moderate chop. Isolated
showers.
.SUNDAY NIGHT...South to southwest winds 10 to 15 knots. Seas 2
to 3 feet. Nearshore waters a light to moderate chop. Isolated
showers.

$$

GMZ052>055-072>075-110930-
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-
425 PM EST Tue Feb 10 2026

...SMALL CRAFT SHOULD EXERCISE CAUTION FOR INCREASING WINDS...

.TONIGHT...East to southeast winds near 15 knots, increasing to
15 to 20 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave
Detail: East 5 feet at 5 seconds.
.WEDNESDAY...East to southeast winds near 15 knots, becoming east
and decreasing to near 10 knots. Seas 2 to 4 feet, occasionally
to 5 feet, subsiding to 2 to 3 feet. Wave Detail: East 4 feet at 6
seconds.
.WEDNESDAY NIGHT...East winds 5 to 10 knots, becoming northeast
to east. Seas 2 to 3 feet, subsiding to around 2 feet. Wave
Detail: East 3 feet at 5 seconds.
.THURSDAY...North to northeast winds 5 to 10 knots. Seas 1 to
2 feet.
.THURSDAY NIGHT...Northeast winds near 5 knots. Seas around
1 foot.
.FRIDAY...Northeast to east winds 5 to 10 knots. Seas 1 to 2 feet.
.FRIDAY NIGHT...Northeast to east winds 5 to 10 knots, becoming
east and increasing to 10 to 15 knots. Seas 1 to 2 feet, building
to around 2 feet.
.SATURDAY...East winds 10 to 15 knots, increasing to near 15 knots.
Seas 2 to 3 feet, building to 2 to 4 feet, occasionally to 5
feet.
.SATURDAY NIGHT...East to southeast winds 15 to 20 knots, becoming
southeast and increasing to near 20 knots. Seas 2 to 4 feet,
occasionally to 5 feet, building to 4 to 6 feet, occasionally to 8
feet.
.SUNDAY...Southeast winds 15 to 20 knots, becoming southeast to
south near 15 knots. Seas 4 to 6 feet, occasionally to 8 feet.
Scattered showers.
.SUNDAY NIGHT...South to southwest winds 10 to 15 knots
. Seas 3
to 4 feet, occasionally to 5 feet. Isolated showers.

$$

GMZ033-034-110930-
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-
425 PM EST Tue Feb 10 2026

.TONIGHT...East winds 10 to 15 knots. Seas 1 to 3 feet. Wave
Detail: East to southeast 2 feet at 3 seconds.
.WEDNESDAY...East winds near 10 knots. Seas 1 to 2 feet. Wave
Detail: East 2 feet at 3 seconds.
.WEDNESDAY NIGHT...East to southeast winds 5 to 10 knots,
becoming northeast to east and decreasing to near 5 knots. Seas 1
to 2 feet. Wave Detail: East 1 foot at 3 seconds.
.THURSDAY...North to northeast winds near 5 knots. Seas 1 foot or
less.
.THURSDAY NIGHT...North to northeast winds near 5 knots. Seas
1 foot or less.
.FRIDAY...Northeast to east winds near 5 knots. Seas 1 foot or
less.
.FRIDAY NIGHT...Northeast winds near 5 knots, becoming northeast
to east and increasing to near 10 knots. Seas 1 foot or less,
building to 1 to 2 feet.
.SATURDAY...East winds 10 to 15 knots. Seas 1 to 3 feet.
.SATURDAY NIGHT...East to southeast winds 10 to 15 knots,
becoming southeast and increasing to 15 to 20 knots. Seas 2 to 3
feet, building to 3 to 4 feet, occasionally to 5 feet.
.SUNDAY...Southeast to south winds 15 to 20 knots, becoming south
near 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. Isolated
showers.
.SUNDAY NIGHT...Southwest winds 10 to 15 knots. Seas 2 to 4 feet,
occasionally to 5 feet. Isolated showers.

$$