822
FZUS52 KKEY 020929
CWFKEY

Coastal Waters Forecast for the Florida Keys
National Weather Service Key West FL
429 AM EST Tue Dec 2 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.

GMZ005-022130-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
429 AM EST Tue Dec 2 2025

.SYNOPSIS...High pressure across the area will continue to
promote gentle to moderate southeast breezes this morning as it
shifts into the western North Atlantic. A developing storm system
on the heels of this high will result in a weakening of the
pressure gradient across the Keys through early Wednesday. Its
corresponding cold front is expected to press through the Keys mid
to late week resulting in freshening north to northeast breezes.
Another surface high builds back in following the front with
gentle broadly southern breezes returning in time for the weekend.

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

28 NM South of Dry Tortugas Light...on Loggerhead Key.
20 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
17 NM South of Sand Key Light...off Key West.
15 NM South of Looe Key...off Big Pine Key.
15 NM Southeast of Sombrero Key Light...off Marathon.
10 NM Southeast of Alligator Reef Light...off Islamorada.
 9 NM Southeast of Molasses Reef Light...off Key Largo.
 8 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.

$$

GMZ031-022130-
Florida Bay including Barnes Sound, Blackwater Sound, and
Buttonwood Sound-
429 AM EST Tue Dec 2 2025

.TODAY...Southeast to south winds near 10 knots, becoming
southwest this afternoon. Bay waters a light chop.
.TONIGHT...Southwest to west winds 5 to 10 knots, becoming west to
northwest. Bay waters smooth to a light chop. Patchy fog after
midnight.
.WEDNESDAY...Northwest winds near 5 knots. Bay waters smooth.
Patchy fog in the morning.
.WEDNESDAY NIGHT...North winds 5 to 10 knots. Bay waters smooth
to a light chop.
.THURSDAY...Northeast to east winds near 10 knots. Bay waters a
light chop.
.THURSDAY NIGHT...Northeast to east winds near 10 knots. Bay
waters a light chop.
.FRIDAY...East winds near 10 knots. Bay waters a light chop.
.FRIDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters smooth
to a light chop.
.SATURDAY...South to southwest winds 5 to 10 knots. Bay waters
smooth to a light chop. Isolated showers.
.SATURDAY NIGHT...Southwest winds 5 to 10 knots. Bay waters
smooth to a light chop. Isolated showers.

$$

GMZ032-035-022130-
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-
429 AM EST Tue Dec 2 2025

.TODAY...Southeast to south winds 10 to 15 knots, becoming
southwest near 10 knots this afternoon. Seas 1 to 2 feet.
Nearshore waters a light to moderate chop, becoming a light chop.
Isolated showers.
.TONIGHT...West to northwest winds 5 to 10 knots. Seas 1 foot or
less. Nearshore waters smooth to a light chop. Isolated showers
after midnight. Patchy fog after midnight.
.WEDNESDAY...North winds 5 to 10 knots. Seas building to 1 to 2
feet. Nearshore waters smooth to a light chop. Patchy fog in the
morning.
.WEDNESDAY NIGHT...North winds near 10 knots. Seas 1 to 2 feet.
Nearshore waters a light chop.
.THURSDAY...Northeast to east winds near 10 knots. Seas 1 to 2
feet. Nearshore waters a light chop.
.THURSDAY NIGHT...Northeast to east winds near 10 knots. Seas
1 to 2 feet. Nearshore waters a light chop.
.FRIDAY...East winds near 10 knots. Seas subsiding to around 1
foot. Nearshore waters a light chop.
.FRIDAY NIGHT...Southeast winds 5 to 10 knots. Seas 1 foot or
less. Nearshore waters smooth to a light chop.
.SATURDAY...South winds 5 to 10 knots, becoming southwest. Seas 1
foot or less. Nearshore waters smooth to a light chop. Isolated
showers.
.SATURDAY NIGHT...Variable winds near 5 knots. Seas 1 foot or
less. Nearshore waters smooth. Isolated showers.

$$

GMZ042>044-022130-
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-
429 AM EST Tue Dec 2 2025

.TODAY...Southeast winds near 15 knots, becoming southwest near 10
knots this afternoon. Seas 1 to 2 feet. Nearshore waters a moderate
chop, becoming a light chop. Isolated showers.
.TONIGHT...West to northwest winds 5 to 10 knots. Seas subsiding
to around 1 foot. Nearshore waters smooth to a light chop.
Isolated showers after midnight.
.WEDNESDAY...North winds 5 to 10 knots. Seas around 1 foot, except
building to 1 to 2 feet west of Cosgrove Shoal Light. Nearshore
waters smooth to a light chop.
.WEDNESDAY NIGHT...North to northeast winds increasing to near 10
knots. Seas around 1 foot, except around 2 feet west of Cosgrove
Shoal Light. Nearshore waters becoming a light chop.
.THURSDAY...Northeast to east winds near 10 knots. Seas 1 to
2 feet. Nearshore waters a light chop.
.THURSDAY NIGHT...Northeast to east winds increasing to 10 to 15
knots. Seas around 2 feet. Nearshore waters becoming a light to
moderate chop.
.FRIDAY...East winds decreasing to near 10 knots. Seas 1 to 2
feet. Nearshore waters becoming a light chop.
.FRIDAY NIGHT...Southeast winds near 10 knots. Seas 1 to 2 feet.
Nearshore waters a light chop.
.SATURDAY...South winds 5 to 10 knots. Seas around 1 foot.
Nearshore waters smooth to a light chop. Isolated showers.
.SATURDAY NIGHT...Variable winds near 5 knots. Seas 1 foot or
less. Nearshore waters smooth. Isolated showers.

$$

GMZ052>055-072>075-022130-
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-
429 AM EST Tue Dec 2 2025

.TODAY...Southeast to south winds near 15 knots, becoming
southwest near 10 knots this afternoon. Seas 3 to 4 feet,
subsiding to around 2 feet. Wave Detail: Southeast 3 feet at 5
seconds. Isolated showers.
.TONIGHT...West to northwest winds decreasing to 5 to 10 knots.
Seas 1 to 2 feet. Wave Detail: East 2 feet at 5 seconds. Isolated
showers.
.WEDNESDAY...North to northeast winds 5 to 10 knots. Seas 1 to
2 feet. Wave Detail: Northwest 1 foot at 3 seconds and northeast
1 foot at 4 seconds. Isolated showers.
.WEDNESDAY NIGHT...North to northeast winds near 10 knots. Seas 1
to 2 feet.
.THURSDAY...Northeast to east winds near 10 knots. Seas around
2 feet.
.THURSDAY NIGHT...Northeast to east winds 10 to 15 knots. Seas
2 to 3 feet.
.FRIDAY...East to southeast winds 10 to 15 knots. Seas 2 to
3 feet.
.FRIDAY NIGHT...Southeast winds decreasing to near 10 knots. Seas
around 2 feet.
.SATURDAY...Southeast to south winds decreasing to 5 to 10 knots.
Seas 1 to 2 feet. Isolated showers.
.SATURDAY NIGHT...South winds near 5 knots. Seas around 1 foot.
Isolated showers.

$$

GMZ033-034-022130-
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-
429 AM EST Tue Dec 2 2025

.TODAY...Southeast to south winds 10 to 15 knots, becoming
southwest near 10 knots this afternoon. Seas 2 to 3 feet. Wave
Detail: South to southwest 2 feet at 4 seconds. Isolated showers.
.TONIGHT...West to northwest winds 5 to 10 knots. Seas 1 to 2
feet. Wave Detail: West 2 feet at 5 seconds and southeast to south
1 foot at 4 seconds. Isolated showers. Patchy fog after midnight.
.WEDNESDAY...North to northeast winds 5 to 10 knots. Seas 1 to
2 feet. Wave Detail: West to northwest 2 feet at 6 seconds.
Patchy fog in the morning. Isolated showers.
.WEDNESDAY NIGHT...North to northeast winds near 10 knots. Seas
2 to 3 feet.
.THURSDAY...Northeast to east winds decreasing to 5 to 10 knots.
Seas subsiding to 1 to 2 feet.
.THURSDAY NIGHT...Northeast to east winds 5 to 10 knots,
increasing to 10 to 15 knots. Seas 1 to 2 feet.
.FRIDAY...East to southeast winds decreasing to near 10 knots.
Seas 1 to 2 feet.
.FRIDAY NIGHT...Southeast winds 5 to 10 knots. Seas around
1 foot. Isolated showers.
.SATURDAY...Southeast to south winds 5 to 10 knots. Seas around 1
foot. Isolated showers.
.SATURDAY NIGHT...Southwest winds 5 to 10 knots. Seas 1 foot or
less. Isolated showers.

$$

JAM