Coastal Waters Forecast
Issued by NWS Key West, FL

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FZUS52 KKEY 040228
CWFKEY

Coastal Waters Forecast for the Florida Keys
National Weather Service Key West FL
1028 PM EDT Tue Jun 3 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.

GMZ005-041430-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
1028 PM EDT Tue Jun 3 2025

.SYNOPSIS...An upper-level low in the Gulf of America will
continue to promote a very active weather pattern across our area
overnight through at least Wednesday morning. Expect strong gusty
winds, sudden wind direction shifts, and locally rough and
confused seas with the stronger activity. A surface high pressure
system will move eastward off the Eastern Seaboard, linking up
with a North Atlantic ridge. This high will move out into the
Atlantic later this week, resulting in a return to gentle to
moderate east to southeast breezes and less rainy and thundery
conditions.

The Approximate Shoreward Edge of the Gulf Stream as of May 30th...

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.

$$

GMZ031-041430-
Florida Bay including Barnes Sound, Blackwater Sound, and
Buttonwood Sound-
1028 PM EDT Tue Jun 3 2025

...SMALL CRAFT ADVISORY IN EFFECT...

.OVERNIGHT...Southeast winds near 20 knots. Bay waters rough.
Bay waters rough and winds higher in and around widespread
showers and numerous thunderstorms.
.WEDNESDAY...Southeast winds 15 to 20 knots, decreasing to near
15 knots. Bay waters choppy, becoming a moderate chop. Numerous
showers and scattered thunderstorms.
.WEDNESDAY NIGHT...East to southeast winds 15 to 20 knots. Bay
waters choppy. Scattered showers and isolated thunderstorms.
.THURSDAY...East to southeast winds 15 to 20 knots early,
decreasing to near 15 knots. Bay waters choppy, becoming a
moderate chop. Scattered showers and isolated thunderstorms.
.THURSDAY NIGHT...East to southeast winds near 15 knots. Bay
waters a moderate chop. Scattered showers and isolated
thunderstorms.
.FRIDAY...Southeast winds 10 to 15 knots. Bay waters a light to
moderate chop. Scattered showers and isolated thunderstorms.
.FRIDAY NIGHT THROUGH SATURDAY NIGHT...Southeast winds near 10
knots. Bay waters a light chop. Scattered showers and isolated
thunderstorms.
.SUNDAY AND SUNDAY NIGHT...Southeast to south winds near 10
knots. Bay waters a light chop. Scattered showers and isolated
thunderstorms.

$$

GMZ032-035-041430-
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-
1028 PM EDT Tue Jun 3 2025

...SMALL CRAFT ADVISORY IN EFFECT...

.OVERNIGHT...Southeast to south winds near 20 knots. Seas 2 to
3 feet, except 3 to 4 feet, occasionally to 5 feet west of the
Marquesas Keys. Nearshore waters rough. Winds and seas higher in
and around widespread showers and numerous thunderstorms.
.WEDNESDAY...Southeast winds 15 to 20 knots, decreasing to near
15 knots. Seas 2 to 3 feet, except 3 to 4 feet, occasionally to 5
feet west of the Marquesas Keys. Nearshore waters choppy, becoming
a moderate chop. Numerous showers and scattered thunderstorms.
.WEDNESDAY NIGHT...East to southeast winds 15 to 20 knots. Seas 2
to 3 feet, except 3 to 4 feet, occasionally to 5 feet west of the
Marquesas Keys. Nearshore waters choppy. Scattered showers and
isolated thunderstorms.
.THURSDAY...East to southeast winds 15 to 20 knots, decreasing to
near 15 knots. Seas 2 to 3 feet, except 3 to 4 feet, occasionally
to 5 feet west of the Marquesas Keys. Nearshore waters choppy,
becoming a moderate chop. Scattered showers and isolated
thunderstorms.
.THURSDAY NIGHT...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. Scattered showers and isolated
thunderstorms.
.FRIDAY...Southeast winds 10 to 15 knots. Seas 1 to 2 feet,
except 2 to 3 feet west of the Marquesas Keys. Nearshore waters a
light to moderate chop. Scattered showers and isolated
thunderstorms.
.FRIDAY NIGHT...East to southeast winds near 10 knots. Seas
1 to 2 feet. Nearshore waters a light chop. Scattered showers and
isolated thunderstorms.
.SATURDAY...Southeast winds near 10 knots. Seas subsiding to
around 1 foot. Nearshore waters a light chop. Scattered showers
and isolated thunderstorms.
.SATURDAY NIGHT...Southeast winds near 10 knots. Seas around 1
foot. Nearshore waters a light chop. Scattered showers and
isolated thunderstorms.
.SUNDAY AND SUNDAY NIGHT...Southeast to south winds near 10 knots.
Seas around 1 foot. Nearshore waters a light chop. Scattered
showers and isolated thunderstorms.

$$

GMZ042>044-041430-
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-
1028 PM EDT Tue Jun 3 2025

...SMALL CRAFT ADVISORY IN EFFECT...

.OVERNIGHT...Southeast to south winds near 20 knots. Seas 3 to
5 feet, occasionally to 6 feet. Nearshore waters rough. Winds and
seas higher in and around numerous showers and scattered
thunderstorms.
.WEDNESDAY...Southeast winds 15 to 20 knots. Seas 3 to 5 feet,
occasionally to 6 feet. Nearshore waters choppy. Numerous showers
and scattered thunderstorms.
.WEDNESDAY NIGHT...East to southeast winds 15 to 20 knots. Seas
3 to 5 feet, occasionally to 6 feet. Nearshore waters choppy.
Scattered showers and isolated thunderstorms.
.THURSDAY...East to southeast winds 15 to 20 knots. Seas 3 to
5 feet, occasionally to 6 feet. Nearshore waters choppy.
Scattered showers and isolated thunderstorms.
.THURSDAY NIGHT...East to southeast winds 15 to 20 knots,
decreasing to near 15 knots. Seas 2 to 4 feet, occasionally to 5
feet. Nearshore waters choppy, becoming a moderate chop.
Scattered showers and isolated thunderstorms.
.FRIDAY...Southeast winds 10 to 15 knots. Seas 2 to 3 feet.
Nearshore waters a light to moderate chop. Scattered showers and
isolated thunderstorms.
.FRIDAY NIGHT...East to southeast winds near 10 knots. Seas 1 to
2 feet. Nearshore waters a light chop. Scattered showers and
isolated thunderstorms.
.SATURDAY AND SATURDAY NIGHT...Southeast winds near 10 knots.
Seas 1 to 2 feet. Nearshore waters a light chop. Scattered showers
and isolated thunderstorms.
.SUNDAY AND SUNDAY NIGHT...Southeast to south winds near 10
knots. Seas 1 to 2 feet. Nearshore waters a light chop. Scattered
showers and isolated thunderstorms.

$$

GMZ052>055-072>075-041430-
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-
1028 PM EDT Tue Jun 3 2025

...SMALL CRAFT ADVISORY IN EFFECT...

.OVERNIGHT...Southeast to south winds near 20 knots. Seas 4 to 6
feet, occasionally to 7 feet. Wave Detail: Southeast 4 feet at 5
seconds. Winds and seas higher in and around numerous showers
and scattered thunderstorms.
.WEDNESDAY...Southeast winds 15 to 20 knots. Seas 4 to 5 feet,
occasionally to 6 feet. Wave Detail: Southeast 4 feet at
5 seconds. Scattered showers and thunderstorms.
.WEDNESDAY NIGHT...East to southeast winds 15 to 20 knots. Seas
4 to 6 feet, occasionally to 8 feet. Scattered showers and
isolated thunderstorms.
.THURSDAY...East to southeast winds 15 to 20 knots. Seas 4 to
6 feet, occasionally to 8 feet. Scattered showers and isolated
thunderstorms.
.THURSDAY NIGHT...East to southeast winds 15 to 20 knots,
decreasing to near 15 knots. Seas 3 to 5 feet, occasionally to 6
feet. Scattered showers and isolated thunderstorms.
.FRIDAY...East to southeast winds 10 to 15 knots. Seas 2 to
4 feet, occasionally to 5 feet. Scattered showers and isolated
thunderstorms.
.FRIDAY NIGHT...East to southeast winds 10 to 15 knots. Seas 2 to
3 feet. Scattered showers and isolated thunderstorms.
.SATURDAY...East to southeast winds near 10 knots. Seas around
2 feet. Scattered showers and isolated thunderstorms.
.SATURDAY NIGHT...East to southeast winds increasing to 10 to 15
knots. Seas 1 to 2 feet. Scattered showers and isolated
thunderstorms.
.SUNDAY AND SUNDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2
to 3 feet. Scattered showers and isolated thunderstorms.

$$

GMZ033-034-041430-
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-
1028 PM EDT Tue Jun 3 2025

...SMALL CRAFT ADVISORY IN EFFECT...

.OVERNIGHT...Southeast to south winds near 20 knots. Seas 3 to 5
feet, occasionally to 6 feet. Wave Detail: Southeast to south 4
feet at 5 seconds. Winds and seas higher in and around widespread
showers and numerous thunderstorms
.WEDNESDAY...Southeast to south winds 15 to 20 knots, decreasing
to near 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave
Detail: Southeast to south 4 feet at 5 seconds. Numerous showers
and scattered thunderstorms.
.WEDNESDAY NIGHT...East to southeast winds 15 to 20 knots. Seas
3 to 4 feet, occasionally to 5 feet. Numerous showers and
isolated thunderstorms.
.THURSDAY...East to southeast winds 15 to 20 knots, decreasing to
near 15 knots. Seas 3 to 4 feet, occasionally to 5 feet, subsiding
to 2 to 3 feet. Scattered showers and isolated thunderstorms.
.THURSDAY NIGHT...East to southeast winds near 15 knots. Seas
2 to 3 feet. Scattered showers and isolated thunderstorms.
.FRIDAY...Southeast winds 10 to 15 knots. Seas 2 to 3 feet.
Scattered showers and isolated thunderstorms.
.FRIDAY NIGHT...East to southeast winds near 10 knots. Seas 1 to
2 feet. Scattered showers and isolated thunderstorms.
.SATURDAY...Southeast winds 5 to 10 knots. Seas 1 to 2 feet,
subsiding to around 1 foot. Scattered showers and isolated
thunderstorms.
.SATURDAY NIGHT...Southeast winds 5 to 10 knots. Seas around
1 foot. Scattered showers and isolated thunderstorms.
.SUNDAY AND SUNDAY NIGHT...Southeast to south winds near 10
knots. Seas 1 to 2 feet. Scattered showers and isolated
thunderstorms.

$$