145
FZUS52 KKEY 152020
CWFKEY

Coastal Waters Forecast for the Florida Keys
National Weather Service Key West FL
420 PM EDT Sun Jun 15 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.

GMZ005-160830-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
420 PM EDT Sun Jun 15 2025

.SYNOPSIS...Atlantic ridging will remain across the Florida
Peninsula through Friday. This will support moderate to
occasionally fresh east to southeast breezes. Winds will peak in
the evening and overnight, while lulling during the day.

The Approximate Shoreward Edge of the Gulf Stream as of June 13...

18 NM Southwest of Dry Tortugas Light...on Loggerhead Key.
36 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
33 NM South of Sand Key Light...off Key West.
39 NM South of Looe Key...off Big Pine Key.
25 NM South of Sombrero Key Light...off Marathon.
11 NM Southeast of Alligator Reef Light...off Islamorada.
 5 NM Southeast of Molasses Reef Light...off Key Largo.
 5 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.

$$

GMZ031-160830-
Florida Bay including Barnes Sound, Blackwater Sound, and
Buttonwood Sound-
420 PM EDT Sun Jun 15 2025

.TONIGHT...East to southeast winds 10 to 15 knots, increasing to
near 15 knots. Bay waters a light to moderate chop, becoming a
moderate chop. Isolated showers and thunderstorms.
.MONDAY...East to southeast winds decreasing to 10 to 15 knots.
Bay waters becoming a light to moderate chop. Isolated showers
and thunderstorms.
.MONDAY NIGHT...East to southeast winds near 15 knots. Bay waters
a moderate chop. Isolated showers and thunderstorms.
.TUESDAY...East to southeast winds decreasing to 10 to 15 knots.
Bay waters a light to moderate chop. Isolated showers and
thunderstorms.
.TUESDAY NIGHT...East to southeast winds 10 to 15 knots. Bay
waters a light to moderate chop. Isolated showers and
thunderstorms.
.WEDNESDAY...East to southeast winds 10 to 15 knots. Bay waters a
light to moderate chop. Scattered showers and isolated
thunderstorms.
.WEDNESDAY NIGHT...East to southeast winds 10 to 15 knots. Bay
waters a light to moderate chop. Isolated showers and
thunderstorms.
.THURSDAY...East to southeast winds 10 to 15 knots. Bay waters a
light to moderate chop. Scattered showers and isolated
thunderstorms.
.THURSDAY NIGHT...East to southeast winds 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. Scattered showers and isolated
thunderstorms.
.FRIDAY NIGHT...East to southeast winds near 10 knots. Bay waters
a light chop. Scattered showers and isolated thunderstorms.

$$

GMZ032-035-160830-
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-
420 PM EDT Sun Jun 15 2025

.TONIGHT...East to southeast winds 10 to 15 knots, increasing to
near 15 knots. Seas 1 to 2 feet, except building to 2 to 3 feet
west of the Marquesas Keys. Nearshore waters a light to moderate
chop, becoming a moderate chop. Isolated showers and
thunderstorms.
.MONDAY...East to southeast winds decreasing to 10 to 15 knots.
Seas subsiding to 1 to 2 feet. Nearshore waters becoming a light
to moderate chop. Isolated showers and thunderstorms.
.MONDAY NIGHT...East to southeast winds near 15 knots. Seas 1 to
2 feet, except building to 2 to 3 feet west of the Marquesas Keys.
Nearshore waters a moderate chop. Isolated showers and
thunderstorms.
.TUESDAY...East to southeast winds decreasing to 10 to 15 knots.
Seas 1 to 2 feet. Nearshore waters a light to moderate chop.
Isolated showers and thunderstorms.
.TUESDAY NIGHT...East to southeast winds near 15 knots. Seas 1 to
2 feet, except building to 2 to 3 feet west of the Marquesas Keys.
Nearshore waters a moderate chop. Isolated showers and
thunderstorms.
.WEDNESDAY...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.
.WEDNESDAY NIGHT AND THURSDAY...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.
.THURSDAY 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.
.FRIDAY AND FRIDAY NIGHT...East to southeast winds 10 to 15
knots. Seas 1 to 2 feet. Nearshore waters a light to moderate
chop. Scattered showers and isolated thunderstorms.

$$

GMZ042>044-160830-
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-
420 PM EDT Sun Jun 15 2025

.TONIGHT...East to southeast winds 10 to 15 knots, increasing to
near 15 knots. Seas 2 to 3 feet. Nearshore waters a light to
moderate chop, becoming a moderate chop. Isolated showers and
thunderstorms.
.MONDAY...East to southeast winds decreasing to 10 to 15 knots.
Seas 2 to 3 feet. Nearshore waters becoming a light to moderate
chop. Isolated showers and thunderstorms.
.MONDAY NIGHT...East to southeast winds near 15 knots. Seas 2 to
3 feet. Nearshore waters a moderate chop. Isolated showers and
thunderstorms.
.TUESDAY...East to southeast winds decreasing to 10 to 15 knots.
Seas 2 to 3 feet. Nearshore waters becoming a light to moderate
chop. Isolated showers and thunderstorms.
.TUESDAY NIGHT...East to southeast winds near 15 knots. Seas 2 to
3 feet. Nearshore waters a moderate chop. Isolated showers and
thunderstorms.
.WEDNESDAY...East to southeast winds near 15 knots. Seas 2 to 3
feet. Nearshore waters a moderate chop. Isolated showers and
thunderstorms.
.WEDNESDAY NIGHT AND THURSDAY...East to southeast winds near 15
knots. Seas 2 to 3 feet. Nearshore waters a moderate chop.
Isolated showers and thunderstorms.
.THURSDAY NIGHT...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 AND FRIDAY 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>075-160830-
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-
420 PM EDT Sun Jun 15 2025

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

$$

GMZ033-034-160830-
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-
420 PM EDT Sun Jun 15 2025

.TONIGHT...East to southeast winds 10 to 15 knots, increasing to
near 15 knots. Seas 2 to 3 feet. Wave Detail: East to southeast 2
feet at 4 seconds. Isolated showers and thunderstorms.
.MONDAY...East to southeast winds decreasing to 10 to 15 knots.
Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at 4 seconds.
Isolated showers and thunderstorms.
.MONDAY NIGHT...East to southeast winds increasing to near 15
knots. Seas 2 to 3 feet. Isolated showers and thunderstorms.
.TUESDAY...Southeast winds 10 to 15 knots. Seas 2 to 3 feet.
Isolated showers and thunderstorms.
.TUESDAY NIGHT AND WEDNESDAY...East to southeast winds near 15
knots. Seas 2 to 3 feet. Isolated showers and thunderstorms.
.WEDNESDAY NIGHT...East to southeast winds near 15 knots. Seas 2
to 3 feet. Isolated showers and thunderstorms.
.THURSDAY AND THURSDAY NIGHT...East to southeast winds 10 to 15
knots. Seas 2 to 3 feet. Isolated showers and thunderstorms.
.FRIDAY AND FRIDAY NIGHT...East to southeast winds 10 to 15
knots. Seas 2 to 3 feet. Scattered showers and isolated
thunderstorms.

$$