969
FZUS52 KKEY 052028
CWFKEY

Coastal Waters Forecast for the Florida Keys
National Weather Service Key West FL
428 PM EDT Sat Jul 5 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.

GMZ005-060830-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
428 PM EDT Sat Jul 5 2025

.SYNOPSIS...A deep trough complex over the Southeast US and
Florida will maintain gentle southwest breezes across the Florida
Keys through today. As the trough lifts northeast starting
Sunday, a weak ridge axis will rebuild across the Keys and South
Florida, resulting in a return to generally light to gentle
easterly breezes.

The Approximate Shoreward Edge of the Gulf Stream as of June 29...

14 NM Southwest of Dry Tortugas Light...on Loggerhead Key.
15 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
18 NM South of Sand Key Light...off Key West.
26 NM South of Looe Key...off Big Pine Key.
31 NM South of Sombrero Key Light...off Marathon.
18 NM Southeast of Alligator Reef Light...off Islamorada.
 9 NM Southeast of Molasses Reef Light...off Key Largo.
 3 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.

$$

GMZ031-060830-
Florida Bay including Barnes Sound, Blackwater Sound, and
Buttonwood Sound-
428 PM EDT Sat Jul 5 2025

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

$$

GMZ032-035-060830-
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-
428 PM EDT Sat Jul 5 2025

.TONIGHT...Southwest to west winds 10 to 15 knots, becoming
southwest near 10 knots. Seas around 1 foot. Nearshore waters a
light to moderate chop, becoming a light chop. Scattered showers
and thunderstorms.
.SUNDAY...South to southwest winds near 10 knots, becoming south
and decreasing to 5 to 10 knots. Seas around 1 foot, subsiding to 1
foot or less. Nearshore waters a light chop, becoming smooth to a
light chop. Isolated showers and thunderstorms.
.SUNDAY NIGHT...South winds near 5 knots, becoming southeast and
increasing to 5 to 10 knots. Seas 1 foot or less. Nearshore
waters smooth, becoming smooth to a light chop. Isolated showers
and thunderstorms.
.MONDAY...East to southeast winds 5 to 10 knots. Seas 1 foot or
less. Nearshore waters smooth to a light chop. Isolated showers
and thunderstorms.
.MONDAY NIGHT...East winds 5 to 10 knots. Seas 1 foot or less.
Nearshore waters smooth to a light chop. Isolated showers and
thunderstorms.
.TUESDAY...East winds 5 to 10 knots. Seas 1 foot or less.
Nearshore waters smooth to a light chop. Scattered showers and
isolated thunderstorms.
.TUESDAY NIGHT...East winds 5 to 10 knots. Seas 1 foot or less.
Nearshore waters smooth to a light chop. Isolated showers and
thunderstorms.
.WEDNESDAY...East winds 5 to 10 knots. Seas 1 foot or less.
Nearshore waters smooth to a light chop. Scattered showers and
isolated thunderstorms.
.WEDNESDAY NIGHT...East to southeast winds 5 to 10 knots. Seas
1 foot or less. Nearshore waters smooth to a light chop.
Scattered showers and isolated thunderstorms.
.THURSDAY...East to southeast winds near 5 knots. Seas around
1 foot. Nearshore waters smooth. Scattered showers and isolated
thunderstorms.
.THURSDAY NIGHT...East to southeast winds near 5 knots. Seas
around 1 foot. Nearshore waters smooth. Isolated showers and
thunderstorms.

$$

GMZ042>044-060830-
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-
428 PM EDT Sat Jul 5 2025

.TONIGHT...Southwest winds 10 to 15 knots, except southwest near
15 knots off of the Upper Keys early. Winds then becoming south
near 10 knots. Seas 1 to 2 feet, subsiding to around 1 foot.
Nearshore waters a light to moderate chop, except a moderate chop
off of the Upper Keys. Seas becoming a light chop. Scattered
showers and thunderstorms.
.SUNDAY...South winds 5 to 10 knots, becoming southeast to south
and decreasing to near 5 knots. Seas around 1 foot. Nearshore
waters smooth to a light chop, becoming smooth. Isolated showers
and thunderstorms.
.SUNDAY NIGHT...Southeast winds near 5 knots, increasing to 5 to
10 knots. Seas around 1 foot. Nearshore waters smooth, becoming
smooth to a light chop. Isolated showers and thunderstorms.
.MONDAY...East to southeast winds 5 to 10 knots. Seas around
1 foot. Nearshore waters smooth to a light chop. Isolated showers
and thunderstorms.
.MONDAY NIGHT...East winds near 10 knots. Seas around 1 foot.
Nearshore waters a light chop. Isolated showers and
thunderstorms.
.TUESDAY...East winds 5 to 10 knots. Seas around 1 foot.
Nearshore waters smooth to a light chop. Scattered showers and
isolated thunderstorms.
.TUESDAY NIGHT...East winds near 10 knots. Seas around 1 foot.
Nearshore waters a light chop. Isolated showers and
thunderstorms.
.WEDNESDAY...East winds 5 to 10 knots. Seas around 1 foot.
Nearshore waters smooth to a light chop. Scattered showers and
isolated thunderstorms.
.WEDNESDAY NIGHT...East to southeast winds 5 to 10 knots. Seas
around 1 foot. Nearshore waters smooth to a light chop. Scattered
showers and isolated thunderstorms.
.THURSDAY...East to southeast winds near 5 knots. Seas 1 to
2 feet. Nearshore waters smooth. Scattered showers and isolated
thunderstorms.
.THURSDAY NIGHT...East to southeast winds near 5 knots. Seas 1 to
2 feet. Nearshore waters smooth. Isolated showers and
thunderstorms.

$$

GMZ052>055-072>075-060830-
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-
428 PM EDT Sat Jul 5 2025

.TONIGHT...South to southwest winds 10 to 15 knots, becoming
south near 10 knots. Seas around 1 foot. Scattered showers and
thunderstorms.
.SUNDAY...South winds 5 to 10 knots, becoming southeast. Seas
around 1 foot. Wave Detail: South 1 foot at 2 seconds. Isolated
showers and thunderstorms.
.SUNDAY NIGHT...East to southeast winds 5 to 10 knots. Seas
around 1 foot. Isolated showers and thunderstorms.
.MONDAY...East winds 5 to 10 knots. Seas around 1 foot. Isolated
showers and thunderstorms.
.MONDAY NIGHT...East winds near 10 knots. Seas 1 to 2 feet.
Isolated showers and thunderstorms.
.TUESDAY...Northeast to east winds near 10 knots. Seas 1 to
2 feet. Scattered showers and isolated thunderstorms.
.TUESDAY NIGHT...East winds increasing to 10 to 15 knots. Seas
building to around 2 feet. Isolated showers and thunderstorms.
.WEDNESDAY AND WEDNESDAY NIGHT...East winds near 10 knots. Seas 1
to 2 feet. Scattered showers and isolated thunderstorms.
.THURSDAY...East to southeast winds 5 to 10 knots. Seas 1 to
2 feet. Scattered showers and isolated thunderstorms.
.THURSDAY NIGHT...East to southeast winds 5 to 10 knots. Seas
around 2 feet. Scattered showers and isolated thunderstorms.

$$

GMZ033-034-060830-
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-
428 PM EDT Sat Jul 5 2025

.TONIGHT...Southwest to west winds 10 to 15 knots, becoming
southwest near 10 knots. Seas 1 to 2 feet. Wave Detail:
Southwest to west 1 foot at 4 seconds. Scattered showers and
thunderstorms.
.SUNDAY...South to southwest winds 5 to 10 knots. Seas around 1
foot. Wave Detail: Southwest to west 1 foot at 4 seconds.
Scattered showers and isolated thunderstorms.
.SUNDAY NIGHT...South to southwest winds decreasing to near 5
knots, becoming southeast to south. Seas around 1 foot. Isolated
showers and thunderstorms.
.MONDAY...East to southeast winds near 5 knots, increasing to 5 to
10 knots. Seas around 1 foot. Isolated showers and thunderstorms.
.MONDAY NIGHT...East winds 5 to 10 knots. Seas around 1 foot.
Isolated showers and thunderstorms.
.TUESDAY...Northeast to east winds 5 to 10 knots. Seas around
1 foot. Scattered showers and isolated thunderstorms.
.TUESDAY NIGHT...Northeast to east winds 5 to 10 knots. Seas
around 1 foot. Scattered showers and isolated thunderstorms.
.WEDNESDAY...Northeast to east winds 5 to 10 knots. Seas around 1
foot. Scattered showers and isolated thunderstorms.
.WEDNESDAY NIGHT...East winds 5 to 10 knots. Seas around 1 foot.
Scattered showers and isolated thunderstorms.
.THURSDAY...East to southeast winds near 5 knots. Seas around
1 foot. Scattered showers and isolated thunderstorms.
.THURSDAY NIGHT...Southeast winds near 5 knots. Seas around
1 foot. Isolated showers and thunderstorms.

$$