602
FZUS52 KKEY 071527
CWFKEY

Coastal Waters Forecast for the Florida Keys
National Weather Service Key West FL
1027 AM EST Fri Nov 7 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.

GMZ005-080330-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
1027 AM EST Fri Nov 7 2025

.SYNOPSIS...High pressure will continue to slide eastward across
the central North Atlantic. This will result breezes slackening
this afternoon and continue into the upcoming weekend. Periods of
variable conditions are possible. A potent cold front will push
through the Florida Keys marine zones on Monday, with fresh to
strong northerlies expected in its wake for early next week.

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

42 NM South of Dry Tortugas Light...on Loggerhead Key.
42 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
30 NM South of Sand Key Light...off Key West.
29 NM South of Looe Key...off Big Pine Key.
27 NM Southeast of Sombrero Key Light...off Marathon.
14 NM Southeast of Alligator Reef Light...off Islamorada.
 4 NM Southeast of Molasses Reef Light...off Key Largo.
 3 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.

$$

GMZ031-080330-
Florida Bay including Barnes Sound, Blackwater Sound, and
Buttonwood Sound-
1027 AM EST Fri Nov 7 2025

.THIS AFTERNOON...Northeast to east winds near 5 knots. Bay
waters smooth. Scattered showers.
.TONIGHT...Northeast to east winds near 5 knots. Bay waters
smooth. Isolated showers.
.SATURDAY AND SATURDAY NIGHT...East winds near 5 knots. Bay
waters smooth. Isolated showers.
.SUNDAY...Variable winds near 5 knots. Bay waters smooth.
Isolated showers.
.SUNDAY NIGHT..Variable winds near 5 knots, becoming west to
northwest and increasing to near 10 knots late. Bay waters
smooth, becoming a light chop. Isolated showers.
.MONDAY...Northwest winds 10 to 15 knots, increasing to near 20
knots in the afternoon. Bay waters a light to moderate chop,
becoming rough. Isolated showers.
.MONDAY NIGHT...North winds 20 to 25 knots, increasing to near 25
knots. Bay waters very rough, becoming extremely rough. Isolated
showers.
.TUESDAY...North to northeast winds decreasing to 20 to 25 knots.
Bay waters becoming very rough.
.TUESDAY NIGHT...Northeast winds near 20 knots, decreasing to 15
to 20 knots. Bay waters rough, becoming choppy.

$$

GMZ032-035-080330-
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-
1027 AM EST Fri Nov 7 2025

.THIS AFTERNOON...Northeast to east winds 5 to 10 knots, becoming
east. Seas subsiding to 1 foot or less. Nearshore waters smooth
to a light chop. Scattered showers.
.TONIGHT...East winds 5 to 10 knots. Seas 1 foot or less.
Nearshore waters smooth to a light chop. Isolated showers.
.SATURDAY AND SATURDAY NIGHT...East winds near 5 knots. Seas 1
foot or less. Nearshore waters smooth. Isolated showers.
.SUNDAY...Variable winds near 5 knots. Seas 1 foot or less.
Nearshore waters smooth. Isolated showers.
.SUNDAY NIGHT...Northwest winds 5 to 10 knots, increasing to
near 10 knots. Seas 1 foot or less, building to around 1 foot.
West of the Marquesas Keys, seas around 1 foot, building to 1 to 2
feet. Nearshore waters smooth to a light chop, becoming a light
chop. Isolated showers.
.MONDAY...Northwest winds 10 to 15 knots, increasing to 20 to 25
knots. Seas 1 to 2 feet, building to 2 to 4 feet, occasionally to
5 feet. West of the Marquesas Keys, seas 2 to 3 feet, building to
4 to 6 feet, occasionally to 8 feet. Nearshore waters a light to
moderate chop, becoming very rough. Isolated showers.
.MONDAY NIGHT...North winds 25 to 30 knots. Seas building to 4 to
7 feet, occasionally to 9 feet, except building to 8 to 10 feet,
occasionally to 13 feet west of the Marquesas Keys. Nearshore
waters extremely rough.
.TUESDAY...North to northeast winds 25 to 30 knots, decreasing to
20 to 25 knots. Seas 4 to 6 feet, occasionally to 8 feet. West of
the Marquesas Keys, seas 8 to 10 feet, occasionally to 13 feet,
subsiding to 6 to 8 feet, occasionally to 10 feet. Nearshore
waters extremely rough, becoming very rough.
.TUESDAY NIGHT...Northeast winds near 20 knots, decreasing to 15
to 20 knots. Seas 3 to 5 feet, occasionally to 6 feet, subsiding
to 2 to 4 feet. West of the Marquesas Keys, seas 5 to 6 feet,
occasionally to 8 feet, subsiding to 4 to 5 feet. Nearshore
waters rough, becoming choppy.

$$

GMZ042>044-080330-
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-
1027 AM EST Fri Nov 7 2025

.THIS AFTERNOON...Northeast to east winds 5 to 10 knots, becoming
east to southeast. Seas 1 to 2 feet. Nearshore waters smooth to a
light chop. Scattered showers.
.TONIGHT...Northeast to east winds 5 to 10 knots. Seas around 1
foot. Nearshore waters smooth to a light chop. Scattered showers.
.SATURDAY AND SATURDAY NIGHT...East winds near 5 knots. Seas
around 1 foot. Nearshore waters smooth. Isolated showers.
.SUNDAY...Variable winds near 5 knots. Seas 1 foot or less.
Nearshore waters smooth. Isolated showers.
.SUNDAY NIGHT...Northwest winds 5 to 10 knots, increasing to near
10 knots. Seas around 1 foot, building to 1 to 2 feet. Nearshore
waters smooth to a light chop, becoming a light chop. Isolated
showers.
.MONDAY...Northwest winds 10 to 15 knots, increasing to 20 to 25
knots. Seas 1 to 2 feet. West of Cosgrove Shoal Light, seas 1 to
2 feet, building to 3 to 5 feet, occasionally to 6 feet. Nearshore
waters a light to moderate chop, becoming very rough. Isolated
showers.
.MONDAY NIGHT...North winds 25 to 30 knots. Seas 2 to 3 feet,
except 6 to 9 feet, occasionally to 11 feet west of Cosgrove
Shoal Light. Nearshore waters extremely rough. Isolated showers.
.TUESDAY...North to northeast winds 25 to 30 knots, decreasing to
20 to 25 knots. Seas 2 to 4 feet, occasionally to 5 feet, except
6 to 8 feet, occasionally to 10 feet west of Cosgrove Shoal Light.
Nearshore waters extremely rough, becoming very rough.
.TUESDAY NIGHT...Northeast winds near 20 knots, decreasing to 15
to 20 knots. Seas 2 to 4 feet, occasionally to 5 feet. West of
Cosgrove Shoal Light seas, except 5 to 6 feet, occasionally to 8
feet, subsiding to 4 to 5 feet, occasionally to 6 feet. Nearshore
waters rough, becoming choppy. Isolated showers.

$$

GMZ052>055-072>075-080330-
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-
1027 AM EST Fri Nov 7 2025

.THIS AFTERNOON...East to southeast winds near 10 knots, becoming
northeast to east 5 to 10 knots. Seas 2 to 3 feet. Wave Detail:
East 3 feet at 5 seconds. Scattered showers.
.TONIGHT...Northeast to east winds 5 to 10 knots, becoming east to
southeast. Seas 1 to 2 feet. Wave Detail: East 2 feet at 5
seconds. Scattered showers.
.SATURDAY AND SATURDAY NIGHT...East winds near 5 knots. Seas
around 1 foot. Isolated showers.
.SUNDAY...Variable near 5 knots. Seas around 1 foot. Isolated
showers.
.SUNDAY NIGHT...Northwest to north winds 5 to 10 knots, increasing
to near 10 knots. Seas around 1 foot, building to to 1 to 2 feet.
Isolated showers.
.MONDAY...Northwest to north winds 10 to 15 knots, increasing to
20 to 25 knots. Seas 1 to 2 feet, building to 2 to 4 feet,
occasionally to 5 feet. Isolated showers.
.MONDAY NIGHT...North winds 25 to 30 knots. Seas 6 to 9 feet,
occasionally to 11 feet. Isolated showers.
.TUESDAY...North to northeast winds 25 to 30 knots, decreasing to
near 25 knots. Seas 8 to 11 feet, occasionally to 14 feet.
Isolated showers.
.TUESDAY NIGHT...Northeast winds 20 to 25 knots, decreasing to
near 20 knots. Seas 7 to 10 feet, occasionally to 13 feet,
subsiding to 5 to 8 feet, occasionally to 10 feet. Isolated
showers.

$$

GMZ033-034-080330-
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-
1027 AM EST Fri Nov 7 2025

.THIS AFTERNOON...East winds near 10 knots, becoming east to
southeast 5 to 10 knots. Seas 1 to 2 feet. Wave Detail: East 2
feet at 3 seconds. Scattered showers.
.TONIGHT...East winds 5 to 10 knots. Seas 1 foot or less. Wave
Detail: East 1 foot at 3 seconds. Isolated showers.
.SATURDAY...East winds near 5 knots. Seas around 1 foot. Isolated
showers.
.SATURDAY NIGHT...East to southeast winds near 5 knots. Seas
1 foot or less. Isolated showers.
.SUNDAY...Variable winds near 5 knots. Seas 1 foot or less.
Isolated showers.
.SUNDAY NIGHT...Northwest winds 5 to 10 knots, increasing to
near 15 knots. Seas around 1 foot, building to 1 to 2 feet.
Isolated showers.
.MONDAY...Northwest winds 15 to 20 knots, increasing to near 25
knots. Seas 2 to 4 feet, occasionally to 5 feet, building to 5 to
7 feet, occasionally to 9 feet. Isolated showers.
.MONDAY NIGHT...North winds 25 to 30 knots. Seas 7 to 10 feet,
occasionally to 13 feet.
.TUESDAY...North to northeast winds 25 to 30 knots, decreasing to 20
to 25 knots. Seas 7 to 10 feet, occasionally to 13 feet,
subsiding to 5 to 8 feet, occasionally to 10 feet.
.TUESDAY NIGHT...Northeast winds near 20 knots, decreasing to 15
to 20 knots. Seas 5 to 7 feet, occasionally to 9 feet, subsiding
to 4 to 5 feet, occasionally to 6 feet. Isolated showers.

$$