069
FZUS52 KKEY 291420
CWFKEY

Coastal Waters Forecast for the Florida Keys
National Weather Service Key West FL
1020 AM EDT Tue Jul 29 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.

GMZ005-300230-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
1020 AM EDT Tue Jul 29 2025

.SYNOPSIS...Light southeasterly breezes will persist across the
waters of the Florida Keys today. A rebuilding Atlantic ridge
will build westward across South Florida during the next few days,
which will slightly bump wind speeds up. Expect a diurnal cycle
of fresher winds overnight and slackening winds during the day.

The Approximate Shoreward Edge of the Gulf Stream as of July 22...

59 NM South of Dry Tortugas Light...on Loggerhead Key.
 4 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
 2 NM South of Sand Key Light...off Key West.
 5 NM South of Looe Key...off Big Pine Key.
 6 NM Southeast of Sombrero Key Light...off Marathon.
 9 NM Southeast of Alligator Reef Light...off Islamorada.
 6 NM Southeast of Molasses Reef Light...off Key Largo.
 4 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.

$$

GMZ031-300230-
Florida Bay including Barnes Sound, Blackwater Sound, and
Buttonwood Sound-
1020 AM EDT Tue Jul 29 2025

.THIS AFTERNOON...Southeast winds 5 to 10 knots. Bay waters
smooth to a light chop. Isolated showers and thunderstorms.
.TONIGHT...Southeast to south winds 5 to 10 knots. Bay waters
smooth to a light chop. Isolated showers and thunderstorms.
.WEDNESDAY...Southeast to south winds 5 to 10 knots. Bay waters
smooth to a light chop. Isolated showers and thunderstorms.
.WEDNESDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters
smooth to a light chop. Isolated showers and thunderstorms.
.THURSDAY...East to southeast winds 5 to 10 knots. Bay waters
smooth to a light chop. Isolated showers and thunderstorms.
.THURSDAY NIGHT AND FRIDAY...East to southeast winds 5 to 10
knots. Bay waters smooth to a light chop. Isolated showers and
thunderstorms.
.FRIDAY NIGHT...East to southeast winds near 10 knots. Bay waters
a light chop. Isolated showers and thunderstorms.
.SATURDAY...Southeast winds near 5 knots. Bay waters smooth.
Isolated showers and thunderstorms.
.SATURDAY NIGHT...East to southeast winds 5 to 10 knots. Bay
waters smooth to a light chop. Isolated showers and
thunderstorms.

$$

GMZ032-035-300230-
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-
1020 AM EDT Tue Jul 29 2025

.THIS AFTERNOON...Southeast winds 5 to 10 knots. Seas 1 foot or
less. Nearshore waters smooth to a light chop. Isolated showers
and thunderstorms.
.TONIGHT...Southeast winds 5 to 10 knots. Seas 1 foot or less.
Nearshore waters smooth to a light chop. Isolated showers and
thunderstorms.
.WEDNESDAY...Southeast winds near 5 knots. Seas 1 foot or less.
Nearshore waters smooth. Isolated showers and thunderstorms.
.WEDNESDAY NIGHT...Southeast winds 5 to 10 knots. Seas 1 foot or
less. Nearshore waters smooth to a light chop. Isolated showers
and thunderstorms.
.THURSDAY...East to southeast winds 5 to 10 knots. Seas 1 foot or
less. Nearshore waters smooth to a light chop. Isolated showers
and thunderstorms.
.THURSDAY NIGHT...East winds 5 to 10 knots. Seas 1 foot or less.
Nearshore waters smooth to a light chop. Isolated showers and
thunderstorms.
.FRIDAY...East to southeast winds 5 to 10 knots. Seas 1 foot or
less. Nearshore waters smooth to a light chop. Isolated showers
and thunderstorms.
.FRIDAY NIGHT...East to southeast winds near 10 knots. Seas 1
foot or less. Nearshore waters a light chop. Isolated showers and
thunderstorms.
.SATURDAY...Southeast winds 5 to 10 knots. Seas 1 foot or less.
Nearshore waters smooth to a light chop. Isolated showers and
thunderstorms.
.SATURDAY NIGHT...East to southeast winds 5 to 10 knots. Seas
1 foot or less. Nearshore waters smooth to a light chop. Isolated
showers and thunderstorms.

$$

GMZ042>044-300230-
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-
1020 AM EDT Tue Jul 29 2025

.THIS AFTERNOON...Southeast winds 5 to 10 knots. Seas around 1
foot. Nearshore waters smooth to a light chop. Isolated showers
and thunderstorms.
.TONIGHT AND WEDNESDAY NIGHT...Southeast winds 5 to 10 knots.
Seas around 1 foot. Nearshore waters smooth to a light chop.
Isolated showers and thunderstorms.
.WEDNESDAY NIGHT AND THURSDAY...East to southeast winds 5 to 10
knots. Seas around 1 foot. Nearshore waters smooth to a light
chop. Isolated showers and thunderstorms.
.THURSDAY NIGHT...East winds 5 to 10 knots. Seas around 1 foot.
Nearshore waters smooth to a light chop. Isolated showers and
thunderstorms.
.FRIDAY...East to southeast winds 5 to 10 knots. Seas 1 to
2 feet. Nearshore waters smooth to a light chop. Isolated showers
and thunderstorms.
.FRIDAY NIGHT...East to southeast winds near 10 knots. Seas 1 to
2 feet. Nearshore waters a light chop. Isolated showers and
thunderstorms.
.SATURDAY AND SATURDAY NIGHT...East to southeast winds 5 to 10
knots. Seas 1 to 2 feet. Nearshore waters smooth to a light chop.
Isolated showers and thunderstorms.

$$

GMZ052>055-072>075-300230-
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-
1020 AM EDT Tue Jul 29 2025

.THIS AFTERNOON...East to southeast winds 5 to 10 knots. Seas 1
to 2 feet. Wave Detail: East to southeast 1 foot at 4 seconds.
Isolated showers and thunderstorms.
.TONIGHT...Southeast winds 5 to 10 knots, increasing to near 10
knots. Seas 1 to 2 feet. Wave Detail: East to southeast 2 feet at
4 seconds. Isolated showers and thunderstorms.
.WEDNESDAY...East to southeast winds 5 to 10 knots. Seas 1 to 2
feet. Wave Detail: East to southeast 2 feet at 4 seconds. Isolated
showers and thunderstorms.
.WEDNESDAY NIGHT...East to southeast winds near 10 knots. Seas
1 to 2 feet. Isolated showers and thunderstorms.
.THURSDAY...East winds 5 to 10 knots. Seas 1 to 2 feet. Isolated
showers and thunderstorms.
.THURSDAY NIGHT...East winds near 10 knots. Seas 1 to 2 feet.
Isolated showers and thunderstorms.
.FRIDAY...East winds near 10 knots. Seas 1 to 2 feet. Isolated
showers and thunderstorms.
.FRIDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet.
Isolated showers and thunderstorms.
.SATURDAY...East to southeast winds 5 to 10 knots. Seas 1 to
2 feet. Isolated showers and thunderstorms.
.SATURDAY NIGHT...East winds near 10 knots. Seas 1 to 2 feet.
Isolated showers and thunderstorms.

$$

GMZ033-034-300230-
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-
1020 AM EDT Tue Jul 29 2025

.THIS AFTERNOON...Southeast to south winds near 5 knots. Seas
around 1 foot. Wave Detail: East to southeast 1 foot at 2 seconds
and northwest to north 1 foot at 4 seconds. Isolated showers and
thunderstorms.
.TONIGHT...Southeast to south winds 5 to 10 knots. Seas around
1 foot. Wave Detail: Southeast 1 foot at 2 seconds and northwest
to north 1 foot at 4 seconds. Isolated showers and thunderstorms.
.WEDNESDAY...Southeast to south winds near 5 knots. Seas around
1 foot. Wave Detail: Southeast 1 foot at 3 seconds and northwest
to north 1 foot at 4 seconds. Isolated showers and thunderstorms.
.WEDNESDAY NIGHT...Southeast winds 5 to 10 knots. Seas around
1 foot. Isolated showers and thunderstorms.
.THURSDAY...East to southeast winds 5 to 10 knots. Seas around
1 foot. Isolated showers and thunderstorms.
.THURSDAY NIGHT...East winds 5 to 10 knots. Seas around 1 foot.
Isolated showers and thunderstorms.
.FRIDAY...East winds 5 to 10 knots. Seas 1 foot or less. Isolated
showers and thunderstorms.
.FRIDAY NIGHT...East to southeast winds increasing to near 10
knots. Seas building to 1 to 2 feet. Isolated showers and
thunderstorms.
.SATURDAY AND SATURDAY NIGHT...East to southeast winds 5 to 10
knots. Seas around 1 foot. Isolated showers and thunderstorms.

$$

AJP