766
FZUS52 KKEY 142019
CWFKEY

Coastal Waters Forecast for the Florida Keys
National Weather Service Key West FL
419 PM EDT Tue Oct 14 2025

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.

GMZ005-150830-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
419 PM EDT Tue Oct 14 2025

.SYNOPSIS...A low pressure system developing off the Eastern
Seaboard and a high pressure system over the eastern United
States will allow moderate to fresh breezes tonight. Slackening
winds are expected on Wednesday as the aforementioned low moves
east. By the end of the week, high pressure will set up along the
Carolina coast and support freshening breezes. Expect peak breezes
during the late evening to mornings, and lulls in the afternoons.
Shower coverage will remain isolated to scattered.

The Approximate Shoreward Edge of the Gulf Stream as of October
08...

46 NM South of Dry Tortugas Light...on Loggerhead Key.
27 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
21 NM South of Sand Key Light...off Key West.
30 NM South of Looe Key...off Big Pine Key.
14 NM Southeast of Sombrero Key Light...off Marathon.
 8 NM Southeast of Alligator Reef Light...off Islamorada.
 7 NM Southeast of Molasses Reef Light...off Key Largo.
 6 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.

$$

GMZ031-150830-
Florida Bay including Barnes Sound, Blackwater Sound, and
Buttonwood Sound-
419 PM EDT Tue Oct 14 2025

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

.TONIGHT...Northeast to east winds near 15 knots early, increasing
to 15 to 20 knots. Bay waters a moderate chop, becoming choppy.
Isolated showers.
.WEDNESDAY...Northeast winds near 15 knots, decreasing to near 10
knots. Bay waters a moderate chop, becoming a light chop.
Isolated showers.
.WEDNESDAY NIGHT...North to northeast winds near 10 knots, increasing
to 10 to 15 knots. Bay waters a light chop, becoming a light to
moderate chop. Isolated showers.
.THURSDAY...Northeast winds 10 to 15 knots. Bay waters a light to
moderate chop. Isolated showers.
.THURSDAY NIGHT...Northeast winds 10 to 15 knots. Bay waters a
light to moderate chop. Isolated showers.
.FRIDAY...Northeast to east winds near 15 knots, increasing to 15
to 20 knots. Bay waters a moderate chop, becoming choppy.
Isolated showers.
.FRIDAY NIGHT AND SATURDAY...Northeast to east winds 15 to 20
knots. Bay waters choppy. Isolated showers.
.SATURDAY NIGHT...East winds 15 to 20 knots. Bay waters choppy.
Scattered showers.
.SUNDAY...Southeast winds near 15 knots, decreasing to near 10
knots. Bay waters a moderate chop, becoming a light chop.
Scattered showers.
.SUNDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters smooth
to a light chop. Isolated showers.

$$

GMZ032-035-150830-
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-
419 PM EDT Tue Oct 14 2025

...SMALL CRAFT SHOULD EXERCISE CAUTION...

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

$$

GMZ042>044-150830-
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-
419 PM EDT Tue Oct 14 2025

...SMALL CRAFT SHOULD EXERCISE CAUTION...

.TONIGHT...Northeast winds 15 to 20 knots. Seas 2 to 4 feet,
occasionally to 5 feet. Nearshore waters choppy. Isolated
showers.
.WEDNESDAY...Northeast winds 15 to 20 knots, decreasing to 10 to
15 knots. Seas 2 to 4 feet, occasionally to 5 feet, subsiding
to 2 to 3 feet. Nearshore waters choppy, becoming a light to
moderate chop. Isolated showers.
.WEDNESDAY NIGHT...Northeast winds near 10 knots, increasing to 10
to 15 knots. Seas around 2 feet. Nearshore waters a light chop,
becoming a light to moderate chop. Isolated showers.
.THURSDAY...Northeast winds 10 to 15 knots. Seas around 2 feet.
Nearshore waters a light to moderate chop. Isolated showers.
.THURSDAY NIGHT...Northeast to east winds 10 to 15 knots,
increasing to near 15 knots. Seas around 2 feet, building to 2 to
3 feet. Nearshore waters a light to moderate chop, becoming a
moderate chop. Scattered showers.
.FRIDAY...Northeast to east winds 15 to 20 knots. Seas 2 to 4
feet, occasionally to 5 feet. Nearshore waters choppy. Isolated
showers.
.FRIDAY NIGHT...Northeast to east winds 15 to 20 knots. Seas 3 to
4 feet, occasionally to 5 feet. Nearshore waters choppy.
Scattered showers.
.SATURDAY...East winds 15 to 20 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Nearshore waters choppy. Scattered
showers.
.SATURDAY NIGHT...East to southeast winds 15 to 20 knots. Seas 3
to 4 feet, occasionally to 5 feet, subsiding to 2 to 3 feet.
Nearshore waters choppy. Scattered showers.
.SUNDAY...Southeast winds near 15 knots, decreasing to near 10
knots. Seas 2 to 3 feet. Nearshore waters a moderate chop,
becoming a light chop. Scattered showers.
.SUNDAY NIGHT...Southeast winds 5 to 10 knots. Seas 1 to 2 feet.
Nearshore waters smooth to a light chop. Isolated showers.

$$

GMZ052>055-072>075-150830-
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-
419 PM EDT Tue Oct 14 2025

...SMALL CRAFT SHOULD EXERCISE CAUTION...

.TONIGHT...Northeast winds 15 to 20 knots. Seas 3 to 5 feet,
occasionally to 6 feet. Wave Detail: Northeast 5 feet at
6 seconds. Scattered showers.
.WEDNESDAY...Northeast winds 15 to 20 knots, decreasing to 10 to
15 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail:
Northeast 5 feet at 6 seconds. Isolated showers.
.WEDNESDAY NIGHT...Northeast winds 10 to 15 knots. Seas 2 to
4 feet, occasionally to 5 feet. Wave Detail: Northeast 3 feet at
6 seconds. Isolated showers.
.THURSDAY...Northeast winds 10 to 15 knots. Seas 2 to 3 feet.
Isolated showers.
.THURSDAY NIGHT...Northeast to east winds 10 to 15 knots,
increasing to near 15 knots. Seas 2 to 3 feet. Scattered showers.
.FRIDAY...Northeast to east winds 15 to 20 knots. Seas 3 to
5 feet, occasionally to 6 feet. Scattered showers.
.FRIDAY NIGHT AND SATURDAY...East winds 15 to 20 knots. Seas 4 to
6 feet, occasionally to 8 feet. Scattered showers.
.SATURDAY NIGHT...East to southeast winds 15 to 20 knots. Seas
3 to 5 feet, occasionally to 6 feet. Scattered showers.
.SUNDAY...Southeast winds near 15 knots, decreasing to near 10
knots. Seas subsiding to 2 to 4 feet, occasionally to 5 feet.
Isolated showers.
.SUNDAY NIGHT...East to southeast winds 5 to 10 knots. Seas 1 to
2 feet. Isolated showers.

$$

GMZ033-034-150830-
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-
419 PM EDT Tue Oct 14 2025

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

.TONIGHT...Northeast winds 10 to 15 knots early, increasing to 15
to 20 knots. Seas 2 to 3 feet. Wave Detail: Northeast 3 feet at 4
seconds. Isolated showers.
.WEDNESDAY...Northeast winds 15 to 20 knots, becoming north to
northeast 10 to 15 knots in the afternoon. Seas 2 to 4 feet,
occasionally to 5 feet. Wave Detail: Northeast 4 feet at
5 seconds. Isolated showers.
.WEDNESDAY NIGHT...Northeast winds 10 to 15 knots. Seas 2 to
3 feet, subsiding to around 2 feet. Wave Detail: Northeast 2 feet
at 4 seconds. Isolated showers.
.THURSDAY...Northeast winds 10 to 15 knots. Seas around 2 feet.
Isolated showers.
.THURSDAY NIGHT...Northeast to east winds 10 to 15 knots,
becoming 15 to 20 knots. Seas around 2 feet. Isolated showers.
.FRIDAY...Northeast to east winds 15 to 20 knots. Seas building to 3
to 4 feet, occasionally to 5 feet. Isolated showers.
.FRIDAY NIGHT AND SATURDAY...East winds 15 to 20 knots. Seas 3 to
5 feet, occasionally to 6 feet. Isolated showers.
.SATURDAY NIGHT...East to southeast winds 15 to 20 knots. Seas
2 to 4 feet, occasionally to 5 feet. Scattered showers.
.SUNDAY...Southeast winds near 15 knots, becoming southeast to
south near 10 knots. Seas subsiding to 2 to 3 feet. Isolated
showers.
.SUNDAY NIGHT...Southeast winds near 5 knots. Seas 1 to 2 feet.
Isolated showers.

$$