Coastal Waters Forecast
Issued by NWS Key West, FL

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FZUS52 KKEY 062015
CWFKEY

Coastal Waters Forecast for the Florida Keys
National Weather Service Key West FL
415 PM EDT Fri Jun 6 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.

GMZ005-070830-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
415 PM EDT Fri Jun 6 2025

.SYNOPSIS...Saharan dust will continue to linger in the air, and
will promote lower rain and thunder chances over the next several
days. High pressure off the Mid-Atlantic coastline will continue
to move eastward and merge with a stronger high centered near the
Azores. This will encourage an extended period of light to gentle
east to southeast breezes.

The Approximate Shoreward Edge of the Gulf Stream as of May 30...

55 NM South of Dry Tortugas Light...on Loggerhead Key.
29 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
20 NM South of Sand Key Light...off Key West.
 7 NM South of Looe Key...off Big Pine Key.
 7 NM South of Sombrero Key Light...off Marathon.
 5 NM Southeast of Alligator Reef Light...off Islamorada.
 4 NM Southeast of Molasses Reef Light...off Key Largo.
 4 NM East 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.

$$

GMZ031-070830-
Florida Bay including Barnes Sound, Blackwater Sound, and
Buttonwood Sound-
415 PM EDT Fri Jun 6 2025

.TONIGHT...East to southeast winds near 10 knots, decreasing to 5
to 10 knots. Bay waters a light chop, becoming smooth to a light
chop.
.SATURDAY...East to southeast winds 5 to 10 knots. Bay waters
smooth to a light chop. Isolated showers and thunderstorms.
.SATURDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters
smooth to a light chop. Isolated showers and thunderstorms.
.SUNDAY...Southeast winds 5 to 10 knots, increasing to near 10
knots. Bay waters smooth to a light chop, becoming a light chop.
Isolated showers and thunderstorms.
.SUNDAY NIGHT...East to southeast winds near 10 knots. Bay waters
a light chop. Isolated showers and thunderstorms.
.MONDAY...Southeast winds near 10 knots. Bay waters a light chop.
Scattered showers and isolated thunderstorms.
.MONDAY NIGHT...East to southeast winds near 10 knots, increasing
to 10 to 15 knots. Bay waters a light chop, becoming a light to
moderate chop. Scattered showers and isolated thunderstorms.
.TUESDAY...East to southeast winds near 10 knots. Bay waters a
light chop. Scattered showers and isolated thunderstorms.
.TUESDAY NIGHT THROUGH WEDNESDAY NIGHT...East to southeast winds
10 to 15 knots. Bay waters a light to moderate chop. Scattered
showers and isolated thunderstorms.

$$

GMZ032-035-070830-
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-
415 PM EDT Fri Jun 6 2025

.TONIGHT...East to southeast winds near 10 knots. Seas 1 to 2
feet, subsiding to around 1 foot. Nearshore waters a light chop.
Isolated showers and thunderstorms.
.SATURDAY...East to southeast winds near 10 knots. Seas around 1
foot. Nearshore waters a light chop. Isolated showers and
thunderstorms.
.SATURDAY NIGHT...East to southeast winds near 10 knots. Seas
around 1 foot. Nearshore waters a light chop. Isolated showers
and thunderstorms.
.SUNDAY...East to southeast winds near 10 knots. Seas around 1
foot. Nearshore waters a light chop. Isolated showers and
thunderstorms.
.SUNDAY NIGHT...East to southeast winds 10 to 15 knots. Seas
1 foot or less. Nearshore waters a light to moderate chop.
Isolated showers and thunderstorms.
.MONDAY...Southeast winds near 10 knots. Seas around 1 foot.
Nearshore waters a light chop. Scattered showers and isolated
thunderstorms.
.MONDAY NIGHT...East to southeast winds 10 to 15 knots. Seas
around 1 foot. Nearshore waters a light to moderate chop.
Scattered showers and isolated thunderstorms.
.TUESDAY...East to southeast winds near 10 knots. Seas around 1
foot. Nearshore waters a light chop. Scattered showers and
isolated thunderstorms.
.TUESDAY NIGHT THROUGH WEDNESDAY NIGHT...East to southeast winds
10 to 15 knots. Seas around 1 foot. Nearshore waters a light to
moderate chop. Scattered showers and isolated thunderstorms.

$$

GMZ042>044-070830-
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-
415 PM EDT Fri Jun 6 2025

.TONIGHT...East to southeast winds near 10 knots. Seas 1 to
2 feet. Nearshore waters a light chop. Isolated showers and
thunderstorms.
.SATURDAY...East to southeast winds near 10 knots. Seas 1 to 2
feet. Nearshore waters a light chop. Isolated showers and
thunderstorms.
.SATURDAY NIGHT...East to southeast winds near 10 knots. Seas
1 to 2 feet. Nearshore waters a light chop. Isolated showers and
thunderstorms.
.SUNDAY...East to southeast winds near 10 knots. Seas 1 to
2 feet. Nearshore waters a light chop. Isolated showers and
thunderstorms.
.SUNDAY NIGHT...East to southeast winds 10 to 15 knots. Seas 1 to
2 feet. Nearshore waters a light to moderate chop. Isolated
showers and thunderstorms.
.MONDAY...East to southeast winds near 10 knots. Seas 1 to
2 feet. Nearshore waters a light chop. Scattered showers and
isolated thunderstorms.
.MONDAY NIGHT...East to southeast winds 10 to 15 knots. Seas 1 to
2 feet, building to around 2 feet. Nearshore waters a light to
moderate chop. Scattered showers and isolated thunderstorms.
.TUESDAY...East to southeast winds 10 to 15 knots. Seas around 2
feet. Nearshore waters a light to moderate chop. Scattered
showers and isolated thunderstorms.
.TUESDAY NIGHT AND WEDNESDAY...East to southeast winds 10 to 15
knots. Seas around 2 feet. Nearshore waters a light to moderate
chop. Scattered showers and isolated thunderstorms.
.WEDNESDAY NIGHT...East to southeast winds 10 to 15 knots. Seas
2 to 3 feet. Nearshore waters a light to moderate chop. Scattered
showers and isolated thunderstorms.

$$

GMZ052>055-072>075-070830-
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-
415 PM EDT Fri Jun 6 2025

.TONIGHT...East winds 10 to 15 knots. Seas 2 to 4 feet,
occasionally to 5 feet, subsiding to 2 to 3 feet. Wave Detail:
East 3 feet at 5 seconds. Isolated showers and thunderstorms.
.SATURDAY...East to southeast winds 10 to 15 knots. Seas 2 to 3
feet. Wave Detail: East 3 feet at 5 seconds and east to southeast
2 feet at 2 seconds. Isolated showers and thunderstorms.
.SATURDAY NIGHT...East to southeast winds 10 to 15 knots. Seas
2 to 3 feet. Isolated showers and thunderstorms.
.SUNDAY...East to southeast winds near 10 knots. Seas 2 to
3 feet. Scattered showers and isolated thunderstorms.
.SUNDAY NIGHT...East to southeast winds 10 to 15 knots. Seas 2 to
3 feet. Isolated showers and thunderstorms.
.MONDAY...East to southeast winds 10 to 15 knots. Seas around
2 feet. Scattered showers and isolated thunderstorms.
.MONDAY NIGHT...East to southeast winds 10 to 15 knots. Seas 2 to
3 feet. Scattered showers and isolated thunderstorms.
.TUESDAY...East to southeast winds near 10 knots. Seas around 2
feet. Scattered showers and isolated thunderstorms.
.TUESDAY NIGHT AND WEDNESDAY...East to southeast winds 10 to 15
knots. Seas 2 to 3 feet. Scattered showers and isolated
thunderstorms.
.WEDNESDAY NIGHT...East to southeast winds 10 to 15 knots. Seas 2
to 4 feet, occasionally to 5 feet. Scattered showers and isolated
thunderstorms.

$$

GMZ033-034-070830-
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-
415 PM EDT Fri Jun 6 2025

.TONIGHT...East to southeast winds near 10 knots. Seas 1 to
2 feet. Wave Detail: East to southeast 2 feet at 4 seconds.
Isolated showers and thunderstorms.
.SATURDAY...East to southeast winds near 10 knots, decreasing to 5
to 10 knots. Seas 1 to 2 feet, subsiding to around 1 foot. Wave
Detail: East to southeast 1 foot at 3 seconds. Isolated showers
and thunderstorms.
.SATURDAY NIGHT...Southeast winds 5 to 10 knots. Seas around
1 foot. Isolated showers and thunderstorms.
.SUNDAY...Southeast winds 5 to 10 knots, increasing to near 10
knots. Seas around 1 foot, building to 1 to 2 feet. Isolated
showers and thunderstorms.
.SUNDAY NIGHT...East to southeast winds near 10 knots, increasing
to 10 to 15 knots. Seas 1 to 2 feet. Isolated showers and
thunderstorms.
.MONDAY...Southeast winds near 10 knots. Seas 1 to 2 feet.
Scattered showers and isolated thunderstorms.
.MONDAY NIGHT...East to southeast winds near 10 knots. Seas 1 to
2 feet. Scattered showers and isolated thunderstorms.
.TUESDAY...Southeast winds 5 to 10 knots, increasing to near 10
knots. Seas around 1 foot, building to 1 to 2 feet. Scattered
showers and isolated thunderstorms.
.TUESDAY NIGHT AND WEDNESDAY...East to southeast winds near 10
knots, becoming 10 to 15 knots. Seas 1 to 2 feet. Scattered
showers and isolated thunderstorms.
.WEDNESDAY NIGHT...East to southeast winds 10 to 15 knots. Seas
2 to 3 feet. Scattered showers and isolated thunderstorms.

$$