Coastal Waters Forecast
Issued by NWS Key West, FL

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36
000
FZUS52 KKEY 122032
CWFKEY

Coastal Waters Forecast for the Florida Keys
National Weather Service Key West FL
432 PM EDT Fri Apr 12 2024

Florida Bay, Hawk Channel and Straits of Florida from Ocean Reef
to south of Dry Tortugas, and the extreme southeastern Gulf of
Mexico, 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.

GMZ005-130245-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
432 PM EDT Fri Apr 12 2024

.SYNOPSIS...Breezes have briefly slackened this afternoon and
have begun to clock around to the northeast as high pressure
quickly slides eastward. Expect a nocturnal surge to develop
overnight tonight with fresh northeast breezes expected.
Thereafter, the high will slide into the western Atlantic and
remain through the remainder of the forecast period with peaks and
lulls expected.

The Approximate Shoreward Edge of the Gulf Stream is currently
unavailable.

$$

GMZ031-130245-
Florida Bay including Barnes Sound, Blackwater Sound, and
Buttonwood Sound-
432 PM EDT Fri Apr 12 2024

...SMALL CRAFT SHOULD EXERCISE CAUTION FOR INCREASING WINDS...

.TONIGHT...Northwest to north winds 5 to 10 knots, becoming north
to northeast 15 to 20 knots. Bay waters smooth to a light chop,
becoming choppy.
.SATURDAY...North to northeast winds near 15 knots, becoming
northeast to east. Bay waters a moderate chop.
.SATURDAY NIGHT...Northeast to east winds 15 to 20 knots,
decreasing to near 15 knots. Bay waters choppy, becoming a
moderate chop.
.SUNDAY...Northeast to east winds near 15 knots. Bay waters a
moderate chop.
.SUNDAY NIGHT...Northeast to east winds decreasing to 10 to 15
knots. Bay waters becoming a light to moderate chop.
.MONDAY...Northeast to east winds 10 to 15 knots, becoming east
near 15 knots. Bay waters a light to moderate chop, becoming a
moderate chop.
.MONDAY NIGHT...East winds near 15 knots. Bay waters a moderate
chop.
.TUESDAY...East winds 15 to 20 knots. Bay waters choppy.
.TUESDAY NIGHT...East winds 15 to 20 knots. Bay waters choppy.
.WEDNESDAY...East to southeast winds 15 to 20 knots, decreasing to
near 15 knots. Bay waters choppy, becoming a moderate chop.
.WEDNESDAY NIGHT...East winds near 15 knots. Bay waters a
moderate chop.

$$

GMZ032-035-130245-
Bayside and Gulf side from Craig Key to west end of Seven Mile
Bridge-
Gulf of Mexico from west end of Seven Mile Bridge to Halfmoon
Shoal out to 5 Fathoms-
432 PM EDT Fri Apr 12 2024

...SMALL CRAFT ADVISORY IN EFFECT...

.TONIGHT...Northwest to north winds 10 to 15 knots, becoming north
to northeast near 20 knots. Seas 2 to 4 feet, building to 3 to 5
feet. West of the Marquesas Keys, seas 4 to 5 feet, building to 5
to 6 feet. Nearshore waters a light to moderate chop, becoming
rough.
.SATURDAY...North to northeast winds 15 to 20 knots, becoming
northeast to east 10 to 15 knots in the afternoon. Seas subsiding
to 2 to 4 feet. West of the Marquesas Keys, seas 5 to 6 feet,
subsiding to 3 to 4 feet. Nearshore waters choppy, becoming a
light to moderate chop.
.SATURDAY NIGHT...Northeast to east winds near 15 knots. Seas 2
to 3 feet, except around 3 feet west of the Marquesas Keys.
Nearshore waters a moderate chop.
.SUNDAY...Northeast to east winds near 15 knots. Seas 2 to 3 feet,
subsiding to around 2 feet. West of the Marquesas Keys, seas
around 3 feet, subsiding to 2 to 3 feet. Nearshore waters a
moderate chop.
.SUNDAY NIGHT...East winds near 15 knots. Seas 1 to 2 feet,
except around 3 feet west of the Marquesas Keys. Nearshore waters
a moderate chop.
.MONDAY...East winds 10 to 15 knots, increasing to near 15 knots.
Seas 1 to 2 feet. West of the Marquesas Keys, seas 2 to 3 feet,
subsiding to around 2 feet. Nearshore waters a light to moderate
chop, becoming a moderate chop.
.MONDAY NIGHT...East winds 15 to 20 knots. Seas 1 to 2 feet,
building to 2 to 3 feet. West of the Marquesas Keys, seas building
to 2 to 4 feet. Nearshore waters choppy.
.TUESDAY...East winds 15 to 20 knots. Seas 2 to 3 feet. Nearshore
waters choppy.
.TUESDAY NIGHT...East winds near 20 knots. Seas 2 to 3 feet,
except 3 to 4 feet west of the Marquesas Keys. Nearshore waters
rough.
.WEDNESDAY...East to southeast winds 15 to 20 knots. Seas 2 to
3 feet, except 3 to 4 feet west of the Marquesas Keys. Nearshore
waters choppy.
.WEDNESDAY NIGHT...East winds 15 to 20 knots. Seas around 2 feet,
except around 3 feet west of the Marquesas Keys. Nearshore waters
choppy.

$$

GMZ042>044-130245-
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-
432 PM EDT Fri Apr 12 2024

...SMALL CRAFT ADVISORY IN EFFECT...

.TONIGHT...North winds 10 to 15 knots, becoming north to northeast
near 20 knots. Seas 2 to 3 feet, except building to 4 to 6 feet
west of Cosgrove Shoal Light. Nearshore waters a light to moderate
chop, becoming rough.
.SATURDAY...North to northeast winds 15 to 20 knots, becoming
northeast near 15 knots in the afternoon. Seas 2 to 3 feet.
West of Cosgrove Shoal Light, seas 3 to 5 feet, subsiding to 3 to
4 feet. Nearshore waters choppy, becoming a moderate chop.
.SATURDAY NIGHT...Northeast to east winds 15 to 20 knots. Seas
2 to 3 feet, except 3 to 4 feet west of Cosgrove Shoal Light.
Nearshore waters choppy.
.SUNDAY...Northeast to east winds 15 to 20 knots, decreasing to
near 15 knots. Seas 2 to 3 feet, except 3 to 4 feet west of
Cosgrove Shoal Light. Nearshore waters choppy, becoming a
moderate chop.
.SUNDAY NIGHT...East winds decreasing to 10 to 15 knots. Seas 2
to 3 feet. Nearshore waters becoming a light to moderate chop.
.MONDAY...East 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.
.MONDAY NIGHT...East winds 15 to 20 knots. Seas 2 to 4 feet,
building to 3 to 4 feet. Nearshore waters choppy.
.TUESDAY...East winds 15 to 20 knots. Seas 3 to 4 feet. Nearshore
waters choppy.
.TUESDAY NIGHT...East winds near 20 knots. Seas 3 to 5 feet.
Nearshore waters rough.
.WEDNESDAY...East to southeast winds 15 to 20 knots. Seas
subsiding to 3 to 4 feet. Nearshore waters choppy.
.WEDNESDAY NIGHT...East winds 15 to 20 knots. Seas 2 to 4 feet.
Nearshore waters choppy.

$$

GMZ052>055-072>075-130245-
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-
432 PM EDT Fri Apr 12 2024

...SMALL CRAFT ADVISORY IN EFFECT...

.TONIGHT...North winds 10 to 15 knots, becoming north to northeast
near 20 knots. Seas 4 to 6 feet, building to 4 to 7 feet.
.SATURDAY...Northeast winds near 20 knots, decreasing to 15 to 20
knots. Seas 4 to 6 feet.
.SATURDAY NIGHT AND SUNDAY...Northeast to east winds 15 to 20
knots. Seas 4 to 6 feet.
.SUNDAY NIGHT...East winds near 15 knots. Seas 3 to 5 feet.
.MONDAY...Northeast to east winds near 15 knots. Seas 3 to 4
feet.
.MONDAY NIGHT...East winds 15 to 20 knots. Seas 3 to 5 feet.
.TUESDAY...East winds 15 to 20 knots. Seas 4 to 6 feet.
.TUESDAY NIGHT...East winds near 20 knots. Seas 5 to 7 feet.
.WEDNESDAY AND WEDNESDAY NIGHT...East winds 15 to 20 knots. Seas
4 to 6 feet.

$$

GMZ033-034-130245-
Gulf waters from East Cape Sable to Chokoloskee 20 to 60 NM out
and beyond 5 fathoms-
Gulf of Mexico including Dry Tortugas and Rebecca Shoal Channel-
432 PM EDT Fri Apr 12 2024

...SMALL CRAFT ADVISORY IN EFFECT...

.TONIGHT...Northwest to north winds 15 to 20 knots, becoming north
to northeast near 20 knots. Seas 5 to 6 feet.
.SATURDAY...North to northeast winds near 20 knots, becoming
northeast 10 to 15 knots in the afternoon. Seas 4 to 5 feet,
subsiding to 2 to 4 feet.
.SATURDAY NIGHT...Northeast to east winds 10 to 15 knots,
increasing to near 15 knots. Seas 2 to 4 feet.
.SUNDAY...Northeast to east winds near 15 knots, decreasing to 10
to 15 knots. Seas 2 to 4 feet.
.SUNDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet.
.MONDAY...East winds 10 to 15 knots. Seas 2 to 3 feet.
.MONDAY NIGHT...East winds 10 to 15 knots, increasing to 15 to
20 knots after midnight. Seas building to 2 to 4 feet.
.TUESDAY...East to southeast winds 15 to 20 knots. Seas 3 to
5 feet.
.TUESDAY NIGHT...East to southeast winds near 20 knots. Seas 3 to
5 feet.
.WEDNESDAY...East to southeast winds 15 to 20 knots, decreasing to
near 15 knots. Seas 3 to 5 feet, subsiding to 2 to 3 feet.
.WEDNESDAY NIGHT...East winds 15 to 20 knots. Seas 2 to 4 feet.

$$

NB


USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.