609
FZUS52 KKEY 262026
CWFKEY

Coastal Waters Forecast for the Florida Keys
National Weather Service Key West FL
426 PM EDT Sat Jul 26 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.

GMZ005-270830-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
426 PM EDT Sat Jul 26 2025

.SYNOPSIS...A high pressure cell centered near the Florida
Atlantic Coast will shift westward into the Gulf through the
weekend. This will allow winds to continue to trend downwards and
back northeast to east. A dry and stable air mass associated
with a Saharan Air Layer aloft will eliminate or significantly
limit shower and thunderstorm activity from tonight through
tonight. Thereafter, generally a split ridge pattern will
dominate, keeping breezes light out of the east to southeast.

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.

$$

GMZ031-270830-
Florida Bay including Barnes Sound, Blackwater Sound, and
Buttonwood Sound-
426 PM EDT Sat Jul 26 2025

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

$$

GMZ032-035-270830-
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-
426 PM EDT Sat Jul 26 2025

.TONIGHT...East winds near 15 knots, becoming northeast to east
10 to 15 knots. Seas around 2 feet, subsiding to 1 to 2 feet.
Nearshore waters a moderate chop, becoming a light to moderate
chop.
.SUNDAY...Northeast to east winds 5 to 10 knots. Seas 1 foot or
less. Nearshore waters smooth to a light chop. Isolated showers
and thunderstorms.
.SUNDAY NIGHT...Northeast to east winds 5 to 10 knots. Seas
1 foot or less. Nearshore waters smooth to a light chop.
Scattered showers and isolated thunderstorms.
.MONDAY...Northeast to east winds 5 to 10 knots. Seas 1 foot or
less. Nearshore waters smooth to a light chop. Isolated showers
and thunderstorms.
.MONDAY 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.
.TUESDAY...Southeast winds near 5 knots. Seas 1 foot or less.
Nearshore waters smooth. Isolated showers and thunderstorms.
.TUESDAY NIGHT...Southeast winds near 5 knots, increasing to
around 10 knots. Seas 1 foot or less. Nearshore waters smooth,
becoming 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...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 1 foot or
less. Nearshore waters smooth. Scattered showers and isolated
thunderstorms.
.THURSDAY NIGHT...East to southeast winds 5 to 10 knots. Seas
1 to 2 feet. Nearshore waters smooth to a light chop. Scattered
showers and isolated thunderstorms.

$$

GMZ042>044-270830-
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-
426 PM EDT Sat Jul 26 2025

.TONIGHT...Northeast to east winds near 15 knots, decreasing to
10 to 15 knots. Seas 2 to 3 feet. Nearshore waters a moderate
chop, becoming a light to moderate chop.
.SUNDAY...Northeast to east winds 5 to 10 knots. Seas 1 to
2 feet. Nearshore waters smooth to a light chop. Isolated showers
and thunderstorms.
.SUNDAY NIGHT...Northeast to east winds 5 to 10 knots. Seas
around 1 foot. Nearshore waters smooth to a light chop. Scattered
showers and isolated thunderstorms.
.MONDAY...Northeast to east winds 5 to 10 knots. Seas around 1
foot. Nearshore waters smooth to a light chop. Isolated showers
and thunderstorms.
.MONDAY NIGHT...East to southeast winds 5 to 10 knots. Seas
around 1 foot. Nearshore waters smooth to a light chop. Isolated
showers and thunderstorms.
.TUESDAY...Southeast winds near 5 knots. Seas around 1 foot.
Nearshore waters smooth. Isolated showers and thunderstorms.
.TUESDAY NIGHT...Southeast winds 5 to 10 knots, increasing to near
10 knots. Seas around 1 foot. Nearshore waters smooth to a light
chop, becoming a light chop. Isolated showers and thunderstorms.
.WEDNESDAY...Southeast winds 5 to 10 knots. Seas around 1 foot.
Nearshore waters smooth to a light chop. Isolated showers and
thunderstorms.
.WEDNESDAY NIGHT...East to southeast winds 5 to 10 knots. Seas
around 1 foot. Nearshore waters smooth to a light chop. Isolated
showers and thunderstorms.
.THURSDAY...East to southeast winds 5 to 10 knots. Seas 1 to
2 feet. Nearshore waters smooth to a light chop. Scattered
showers and isolated thunderstorms.
.THURSDAY 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>075-270830-
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-
426 PM EDT Sat Jul 26 2025

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

$$

GMZ033-034-270830-
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-
426 PM EDT Sat Jul 26 2025

.TONIGHT...East winds 10 to 15 knots. Seas 1 to 3 feet. Wave
Detail: East 2 feet at 4 seconds.
.SUNDAY...Northeast to east winds 5 to 10 knots. Seas 1 to
2 feet. Wave Detail: East 2 feet at 4 seconds. Isolated showers
and thunderstorms.
.SUNDAY NIGHT...Northeast winds near 5 knots. Seas around 1 foot.
Wave Detail: North to northeast 1 foot at 3 seconds. Scattered
showers and isolated thunderstorms.
.MONDAY...East winds near 5 knots. Seas around 1 foot. Isolated
showers and thunderstorms.
.MONDAY NIGHT...East to southeast winds near 5 knots. Seas around
1 foot. Scattered showers and isolated thunderstorms.
.TUESDAY...Southeast winds near 5 knots. Seas around 1 foot.
Isolated showers and thunderstorms.
.TUESDAY NIGHT...Southeast winds 5 to 10 knots. Seas around
1 foot. Isolated showers and thunderstorms.
.WEDNESDAY...Southeast to south winds near 5 knots. Seas around
1 foot. Isolated showers and thunderstorms.
.WEDNESDAY NIGHT...Southeast winds near 5 knots. Seas around
1 foot. Isolated showers and thunderstorms.
.THURSDAY...East to southeast winds near 5 knots. Seas around
1 foot. Scattered showers and isolated thunderstorms.
.THURSDAY NIGHT...East to southeast winds near 5 knots. Seas 1 to
2 feet. Isolated showers and thunderstorms.

$$