Coastal Waters Forecast
Issued by NWS Key West, FL

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FZUS52 KKEY 220225
CWFKEY

Coastal Waters Forecast for the Florida Keys
National Weather Service Key West FL
1025 PM EDT Thu Mar 21 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.

GMZ005-220830-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
1025 PM EDT Thu Mar 21 2024

.SYNOPSIS...Strong east to southeast breezes will continue
overnight across the coastal waters of the Florida Keys as low
pressure develops in the Gulf of Mexico. Strong southeasterly
breezes on Friday will be accompanied by strong to potentially
severe thunderstorms. These thundery squalls may come in multiple
episodes Friday through Saturday, and will be capable of damaging
wind gusts, locally heavy rainfall, and perhaps a violent
waterspout or two. The heavy weather will depart Saturday night as
fresh to strong breezes shift to the northwest. Breezes will
shift quickly to the northeast then east Monday and Monday night.

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

$$

GMZ031-220830-
Florida Bay including Barnes Sound, Blackwater Sound, and
Buttonwood Sound-
1025 PM EDT Thu Mar 21 2024

...SMALL CRAFT ADVISORY IN EFFECT...

.OVERNIGHT...East to southeast winds near 20 knots. Bay waters rough.
Isolated showers and thunderstorms.
.FRIDAY...Southeast winds 20 to 25 knots. Bay waters very rough.
Numerous showers and scattered thunderstorms.
.FRIDAY NIGHT...Southeast to south winds 20 to 25 knots, becoming
south to southwest. Bay waters very rough. Widespread showers and
scattered thunderstorms.
.SATURDAY...Southwest to west winds 20 to 25 knots. Bay waters
very rough. Widespread showers and scattered thunderstorms.
.SATURDAY NIGHT...West to northwest winds near 20 knots. Bay
waters rough. Isolated showers and thunderstorms in the evening.
.SUNDAY...Northwest to north winds 15 to 20 knots, becoming north
near 15 knots in the afternoon. Bay waters choppy, becoming a
moderate chop.
.SUNDAY NIGHT...North to northeast winds near 15 knots. Bay
waters a moderate chop.
.MONDAY...Northeast to east winds 15 to 20 knots. Bay waters
choppy.
.MONDAY NIGHT...East winds 15 to 20 knots. Bay waters choppy.
.TUESDAY...East to southeast winds near 15 knots. Bay waters a
moderate chop.
.TUESDAY NIGHT...East to southeast winds 10 to 15 knots. Bay
waters a light to moderate chop.

$$

GMZ032-035-220830-
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-
1025 PM EDT Thu Mar 21 2024

...SMALL CRAFT ADVISORY IN EFFECT...

.OVERNIGHT...East to southeast winds near 20 knots. Seas 2 to 3
feet, except 3 to 5 feet west of the Marquesas Keys. Nearshore
waters rough. Scattered showers and isolated thunderstorms.
.FRIDAY...Southeast winds near 25 knots. Seas 2 to 3 feet, except
3 to 5 feet west of the Marquesas Keys. Nearshore waters extremely
rough. Numerous showers and scattered thunderstorms.
.FRIDAY NIGHT...Southeast to south winds 20 to 25 knots, becoming
south to southwest. Seas 2 to 3 feet, except 3 to 5 feet west of
the Marquesas Keys. Nearshore waters very rough. Widespread
showers and scattered thunderstorms.
.SATURDAY...Southwest to west winds 20 to 25 knots. Seas 2 to
4 feet, except 4 to 5 feet west of the Marquesas Keys. Nearshore
waters very rough. Widespread showers and scattered
thunderstorms.
.SATURDAY NIGHT...Northwest winds near 20 knots. Seas 2 to 4
feet, except 4 to 5 feet west of the Marquesas Keys. Nearshore
waters rough. Isolated showers and thunderstorms in the evening.
.SUNDAY...Northwest to north winds 15 to 20 knots, becoming north
near 15 knots in the afternoon. Seas 3 to 5 feet, except 4 to 6
feet west of the Marquesas Keys. Nearshore waters choppy, becoming
a moderate chop.
.SUNDAY NIGHT...North to northeast winds near 15 knots. Seas 2 to
3 feet. Nearshore waters a moderate chop.
.MONDAY...Northeast to east winds 15 to 20 knots. Seas 2 to 3
feet. Nearshore waters choppy.
.MONDAY NIGHT...East winds 15 to 20 knots. Seas 2 to 3 feet.
Nearshore waters choppy.
.TUESDAY...East to southeast winds 15 to 20 knots. Seas 2 to
3 feet. Nearshore waters choppy.
.TUESDAY NIGHT...East to southeast winds near 15 knots. Seas 2 to
3 feet. Nearshore waters a moderate chop.

$$

GMZ042>044-220830-
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-
1025 PM EDT Thu Mar 21 2024

...SMALL CRAFT ADVISORY IN EFFECT...

.OVERNIGHT...East to southeast winds 20 to 25 knots. Seas 3 to 5
feet. Nearshore waters very rough. Scattered showers and isolated
thunderstorms.
.FRIDAY...Southeast winds near 25 knots. Seas 4 to 6 feet.
Nearshore waters extremely rough. Numerous showers and scattered
thunderstorms.
.FRIDAY NIGHT...Southeast to south winds 20 to 25 knots, becoming
south to southwest. Seas 3 to 5 feet. Nearshore waters very
rough. Widespread showers and scattered thunderstorms.
.SATURDAY...Southwest to west winds 20 to 25 knots. Seas 3 to
5 feet. Nearshore waters very rough. Widespread showers and
scattered thunderstorms.
.SATURDAY NIGHT...Northwest winds near 20 knots. Seas 2 to
3 feet, except 4 to 5 feet west of Cosgrove Shoal Light.
Nearshore waters rough. Isolated showers and thunderstorms in the
evening.
.SUNDAY...Northwest to north winds 15 to 20 knots, decreasing to
near 15 knots in the afternoon. Seas 2 to 3 feet, except 3 to 5
feet west of Cosgrove Shoal Light. Nearshore waters choppy,
becoming a moderate chop.
.SUNDAY NIGHT...North to northeast winds near 15 knots. Seas 1 to
3 feet, except 3 to 4 feet west of Cosgrove Shoal Light.
Nearshore waters a moderate chop.
.MONDAY...East winds 15 to 20 knots. Seas 2 to 4 feet. Nearshore
waters choppy.
.MONDAY NIGHT...East winds 15 to 20 knots. Seas 3 to 4 feet.
Nearshore waters choppy.
.TUESDAY...East to southeast winds 15 to 20 knots. Seas 3 to
4 feet. Nearshore waters choppy.
.TUESDAY NIGHT...East to southeast winds near 15 knots. Seas 2 to
3 feet. Nearshore waters a moderate chop.

$$

GMZ052>055-072>075-220830-
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-
1025 PM EDT Thu Mar 21 2024

...SMALL CRAFT ADVISORY IN EFFECT...

.OVERNIGHT...East to southeast winds 20 to 25 knots. Seas 5 to 7
feet. Scattered showers and isolated thunderstorms.
.FRIDAY...Southeast winds near 25 knots. Seas 5 to 8 feet.
Scattered showers and thunderstorms.
.FRIDAY NIGHT...Southeast to south winds 20 to 25 knots, becoming
south to southwest. Seas 5 to 8 feet. Widespread showers and
scattered thunderstorms.
.SATURDAY...Southwest to west winds 20 to 25 knots. Seas 5 to 7
feet. Widespread showers and scattered thunderstorms.
.SATURDAY NIGHT...West to northwest winds near 20 knots. Seas
4 to 7 feet. Isolated showers and thunderstorms.
.SUNDAY...Northwest to north winds 15 to 20 knots, becoming north
near 15 knots in the afternoon. Seas 4 to 6 feet.
.SUNDAY NIGHT...Northeast winds near 15 knots. Seas 3 to 5 feet.
.MONDAY...East winds 15 to 20 knots. Seas 4 to 5 feet.
.MONDAY NIGHT...East winds 15 to 20 knots. Seas 4 to 6 feet.
.TUESDAY...East to southeast winds 15 to 20 knots. Seas 4 to
5 feet.
.TUESDAY NIGHT...East to southeast winds near 15 knots. Seas 3 to
5 feet.

$$

GMZ033-034-220830-
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-
1025 PM EDT Thu Mar 21 2024

...SMALL CRAFT ADVISORY IN EFFECT...

.OVERNIGHT...East to southeast winds 20 to 25 knots. Seas 4 to 6
feet. Scattered showers and isolated thunderstorms.
.FRIDAY...Southeast winds near 25 knots. Seas 4 to 7 feet.
Widespread showers and scattered thunderstorms.
.FRIDAY NIGHT...Southeast to south winds near 20 knots, becoming
south to southwest 20 to 25 knots after midnight. Seas 4 to 6
feet. Widespread showers and scattered thunderstorms.
.SATURDAY...Southwest to west winds 20 to 25 knots, becoming west
to northwest near 20 knots in the afternoon. Seas 4 to 6 feet.
Numerous showers and scattered thunderstorms.
.SATURDAY NIGHT...Northwest winds near 20 knots. Seas 4 to 6
feet. Isolated showers and thunderstorms in the evening.
.SUNDAY...Northwest to north winds 15 to 20 knots, becoming north
near 15 knots in the afternoon. Seas 4 to 6 feet.
.SUNDAY NIGHT...Northeast winds 15 to 20 knots. Seas 3 to 5 feet.
.MONDAY...East winds 15 to 20 knots. Seas 3 to 4 feet.
.MONDAY NIGHT...East to southeast winds near 20 knots. Seas 3 to
4 feet.
.TUESDAY...East to southeast winds 15 to 20 knots. Seas 3 to
5 feet.
.TUESDAY NIGHT...East to southeast winds near 15 knots. Seas 2 to
4 feet.

$$


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