253
FZUS52 KKEY 051420
CWFKEY

Coastal Waters Forecast for the Florida Keys
National Weather Service Key West FL
1020 AM EDT Thu Jun 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.

GMZ005-060245-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
1020 AM EDT Thu Jun 5 2025

.SYNOPSIS...Saharan dust sliding in from the east will promote
much 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 promote a return to light to gentle east to
southeast breezes through Monday.

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.

$$

GMZ031-060245-
Florida Bay including Barnes Sound, Blackwater Sound, and
Buttonwood Sound-
1020 AM EDT Thu Jun 5 2025

.THIS AFTERNOON...East to southeast winds near 15 knots. Bay
waters a moderate chop. Isolated showers and thunderstorms.
.TONIGHT...East to southeast 10 to 15 knots. Bay waters a light
to moderate chop. Isolated showers and thunderstorms.
.FRIDAY...East to southeast winds 10 to 15 knots. Bay waters a
light to moderate chop. Isolated showers and thunderstorms.
.FRIDAY NIGHT...East to southeast winds near 10 knots. Bay waters
a light chop. Isolated showers and thunderstorms.
.SATURDAY...East to southeast winds near 10 knots. Bay waters
a light chop. Isolated showers and thunderstorms.
.SATURDAY NIGHT...East to southeast winds near 10 knots. Bay
waters a light chop. Isolated showers and thunderstorms.
.SUNDAY...Southeast winds near 10 knots. Bay waters a light chop.
Isolated showers and thunderstorms.
.SUNDAY NIGHT AND MONDAY...Southeast winds near 10 knots. Bay
waters a light chop. Scattered showers and isolated thunderstorms.
.MONDAY NIGHT...East to southeast winds 10 to 15 knots. Bay
waters a light to moderate chop. Scattered showers and isolated
thunderstorms.

$$

GMZ032-035-060245-
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 Thu Jun 5 2025

.THIS AFTERNOON...East to southeast winds near 15 knots. Seas 1
to 2 feet. West of the Marquesas Keys, seas 3 to 4 feet,
occasionally to 5 feet, subsiding to 2 to 3 feet. Nearshore waters
a moderate chop. Isolated showers and thunderstorms.
.TONIGHT...East to southeast winds near 15 knots. Seas 1 to
2 feet, except 2 to 3 feet west of the Marquesas Keys. Nearshore
waters a moderate chop. Isolated showers and thunderstorms.
.FRIDAY...East to southeast winds decreasing to 10 to 15 knots.
Seas 1 to 2 feet, except 2 to 3 feet west of the Marquesas Keys.
Nearshore waters becoming a light to moderate chop. Isolated
showers and thunderstorms.
.FRIDAY 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.
.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...Southeast winds near 10 knots. Seas around 1 foot.
Nearshore waters a light chop. Isolated showers and thunderstorms.
.SUNDAY NIGHT...Southeast winds 10 to 15 knots. Seas 1 to 2 feet.
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 increasing to near 15
knots. Seas building to 1 to 2 feet. Nearshore waters becoming a
moderate chop. Scattered showers and isolated thunderstorms.

$$

GMZ042>044-060245-
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 Thu Jun 5 2025

...SMALL CRAFT SHOULD EXERCISE CAUTION UNTIL WINDS DECREASE...

.THIS AFTERNOON...East to southeast winds 15 to 20 knots,
decreasing to near 15 knots. Seas 3 to 4 feet, occasionally to 5
feet. Nearshore waters choppy, becoming a moderate chop. Isolated
showers and thunderstorms.
.TONIGHT...East to southeast winds near 15 knots. Seas 2 to
4 feet, occasionally to 5 feet. Nearshore waters a moderate chop.
Isolated showers and thunderstorms.
.FRIDAY...East to southeast winds 10 to 15 knots. Seas 2 to
3 feet. Nearshore waters a light to moderate chop. Isolated
showers and thunderstorms.
.FRIDAY NIGHT...East to southeast winds 10 to 15 knots. Seas
around 2 feet. Nearshore waters a light to moderate 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 10 to 15 knots. Seas
1 to 2 feet. Nearshore waters a light to moderate chop. Isolated
showers and thunderstorms.
.SUNDAY...Southeast winds near 10 knots. Seas subsiding to around
1 foot. Nearshore waters a light chop. Isolated showers and
thunderstorms.
.SUNDAY NIGHT...East to southeast winds 10 to 15 knots. Seas
building to 1 to 2 feet. Nearshore waters a light to moderate
chop. Isolated showers and thunderstorms.
.MONDAY...Southeast winds 10 to 15 knots. Seas around 2 feet.
Nearshore waters a light chop. Scattered showers and isolated
thunderstorms.
.MONDAY NIGHT...East to southeast winds increasing to near 15
knots. Seas 2 to 3 feet. Nearshore waters becoming a moderate
chop. Scattered showers and isolated thunderstorms.

$$

GMZ052>055-072>075-060245-
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 Thu Jun 5 2025

...SMALL CRAFT SHOULD EXERCISE CAUTION...

.THIS AFTERNOON...East to southeast winds 15 to 20 knots. Seas 4
to 6 feet, occasionally to 8 feet. Wave Detail: East to southeast
5 feet at 6 seconds. Isolated showers and thunderstorms.
.TONIGHT...East to southeast winds 15 to 20 knots. Seas 3 to
6 feet, occasionally to 7 feet. Wave Detail: East 5 feet at
6 seconds. Isolated showers and thunderstorms.
.FRIDAY...East to southeast winds near 15 knots, decreasing to 10
to 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave
Detail: East to southeast 4 feet at 6 seconds. Isolated showers
and thunderstorms.
.FRIDAY NIGHT...East to southeast 10 to 15 knots. Seas 2 to 4
feet, occasionally to 5 feet. Isolated showers and thunderstorms.
.SATURDAY...East to southeast winds 10 to 15 knots. Seas 2 to
3 feet. 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 subsiding to
1 to 2 feet. Isolated showers and thunderstorms.
.SUNDAY NIGHT...East to southeast winds 10 to 15 knots. Seas
building to 2 to 3 feet. Isolated showers and thunderstorms.
.MONDAY...East to southeast winds 10 to 15 knots. Seas 2 to 3
feet. Scattered showers and isolated thunderstorms.
.MONDAY NIGHT...East to southeast winds near 15 knots. Seas 2 to
4 feet. Isolated showers and thunderstorms.

$$

GMZ033-034-060245-
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 Thu Jun 5 2025

...SMALL CRAFT SHOULD EXERCISE CAUTION UNTIL WINDS DECREASE...

.THIS AFTERNOON...East to southeast winds 15 to 20 knots,
decreasing to near 15 knots. Seas 3 to 4 feet, occasionally to 5
feet. Wave Detail: Southeast 4 feet at 5 seconds and southwest 1
foot at 6 seconds. Isolated showers and thunderstorms.
.TONIGHT...East to southeast winds near 15 knots. Seas 2 to
3 feet. Wave Detail: East to southeast 3 feet at 4 seconds.
Isolated showers and thunderstorms.
.FRIDAY...East to southeast winds 10 to 15 knots. Seas 2 to
3 feet. Wave Detail: East to southeast 2 feet at 4 seconds.
Isolated showers and thunderstorms.
.FRIDAY NIGHT...East to southeast winds 10 to 15 knots. Seas 1 to
2 feet. 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.
Isolated showers and thunderstorms.
.SATURDAY NIGHT...East to southeast winds 5 to 10 knots,
increasing to near 10 knots. Seas building to 1 to 2 feet.
Isolated showers and thunderstorms.
.SUNDAY...Southeast winds decreasing to 5 to 10 knots. Seas
subsiding to around 1 foot. Isolated showers and thunderstorms.
.SUNDAY NIGHT...Southeast winds 5 to 10 knots, increasing to
10 to 15 knots. Seas building to 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 10 to 15 knots. Seas 1 to
3 feet. Isolated showers and thunderstorms.

$$