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000
FZUS52 KKEY 212031
CWFKEY

Coastal Waters Forecast for the Florida Keys
National Weather Service Key West FL
431 PM EDT Sun Apr 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.

GMZ005-220245-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
431 PM EDT Sun Apr 21 2024

.SYNOPSIS...As high pressure over the western North Atlantic
continues to retreat farther offshore tonight, southeasterly
breezes will slacken across the Florida Keys coastal waters.
Light to gentle southeast to south breezes tonight into Monday
will become moderate from the northwest to north Monday afternoon
and evening, as a weak frontal boundary slides through South
Florida and the Keys. High pressure building over the Southeast
will bring moderate easterly breezes back to the Keys waters by
the middle of the week, with fresh breezes developing late in the
week.

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

$$

GMZ031-220245-
Florida Bay including Barnes Sound, Blackwater Sound, and
Buttonwood Sound-
431 PM EDT Sun Apr 21 2024

.TONIGHT...Southeast to south winds near 10 knots, decreasing to
5 to 10 knots. Bay waters a light chop, becoming smooth to a
light chop.
.MONDAY...Southwest winds 5 to 10 knots, becoming west to
northwest and increasing to 10 to 15 knots. Bay waters smooth to
a light chop, becoming a light to moderate chop. Isolated showers
in the afternoon.
.MONDAY NIGHT...Northwest to north winds near 15 knots, becoming
north to northeast. Bay waters a moderate chop.
.TUESDAY...Northeast near 15 knots, becoming northeast to east.
Bay waters a moderate chop.
.TUESDAY NIGHT...Northeast to east winds 15 to 20 knots, becoming
east and decreasing to near 15 knots. Bay waters choppy, becoming
a moderate chop.
.WEDNESDAY...East winds near 15 knots. Bay waters a moderate
chop. Isolated showers.
.WEDNESDAY NIGHT AND THURSDAY...East winds near 15 knots. Bay
waters a moderate chop.
.THURSDAY NIGHT THROUGH FRIDAY NIGHT...East winds 15 to 20 knots.
Bay waters choppy.

$$

GMZ032-035-220245-
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-
431 PM EDT Sun Apr 21 2024

.TONIGHT...Southeast to south winds near 10 knots, becoming south
and decreasing to near 5 knots. Seas subsiding to 1 foot or less.
Nearshore waters a light chop, becoming smooth.
.MONDAY...Southwest winds near 5 knots, becoming west to
northwest and increasing to 10 to 15 knots. Seas building to 1
to 2 feet. Nearshore waters smooth, becoming a light to moderate
chop.
.MONDAY NIGHT...Northwest to north winds near 15 knots, becoming
north to northeast. Seas 1 to 3 feet, except building to 3 to 4
feet west of the Marquesas Keys. Nearshore waters a moderate chop.
.TUESDAY...Northeast near 15 knots, becoming northeast to east.
Seas 2 to 3 feet, except 3 to 4 feet west of the Marquesas Keys.
Nearshore waters a moderate chop.
.TUESDAY NIGHT...Northeast to east winds 15 to 20 knots, becoming
east and decreasing to near 15 knots. Seas 2 to 3 feet. Nearshore
waters choppy, becoming a moderate chop. Isolated showers.
.WEDNESDAY...East 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.
.WEDNESDAY NIGHT...East winds near 15 knots. Seas 1 to 2 feet.
Nearshore waters a moderate chop. Isolated showers.
.THURSDAY...East winds near 15 knots, increasing to 15 to 20
knots. Seas 1 to 2 feet, except 2 to 3 feet west of the Marquesas
Keys. Nearshore waters a moderate chop, becoming choppy.
.THURSDAY NIGHT AND FRIDAY...East winds 15 to 20 knots. Seas 2 to
3 feet, except 3 to 4 feet west of the Marquesas Keys. Nearshore
waters choppy.
.FRIDAY NIGHT...East winds near 20 knots. Seas 2 to 4 feet.
Nearshore waters rough.

$$

GMZ042>044-220245-
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-
431 PM EDT Sun Apr 21 2024

.TONIGHT...Southeast to south winds near 10 knots, decreasing to 5
to 10 knots. Seas subsiding to around 1 foot. Nearshore waters a
light chop, becoming smooth to a light chop.
.MONDAY...Southwest winds 5 to 10 knots, becoming west to
northwest and increasing to 10 to 15 knots. Seas building to 1
to 2 feet. Nearshore waters smooth to a light chop, becoming
a light to moderate chop. Isolated showers in the afternoon.
.MONDAY NIGHT...Northwest to north winds near 15 knots, becoming
north to northeast. Seas 1 to 2 feet, except 2 to 4 feet west of
Cosgrove Shoal Light. Nearshore waters a moderate chop.
.TUESDAY...Northeast winds near 15 knots, becoming northeast to
east. Seas 2 to 3 feet. Nearshore waters a moderate chop.
.TUESDAY NIGHT...Northeast to east winds 15 to 20 knots, becoming
east and decreasing to near 15 knots. Seas 2 to 4 feet. Nearshore
waters choppy, becoming a moderate chop. Isolated showers.
.WEDNESDAY...East winds near 15 knots. Seas 2 to 3 feet.
Nearshore waters a moderate chop. Isolated showers.
.WEDNESDAY NIGHT...East winds near 15 knots. Seas 2 to 3 feet.
Nearshore waters a moderate chop. Isolated showers.
.THURSDAY...East winds near 15 knots, increasing to 15 to 20 knots.
Seas 2 to 3 feet. Nearshore waters a moderate chop, becoming
choppy.
.THURSDAY NIGHT AND FRIDAY...East winds 15 to 20 knots. Seas 2 to
4 feet. Nearshore waters choppy.
.FRIDAY NIGHT...East winds near 20 knots. Seas 3 to 5 feet.
Nearshore waters rough.

$$

GMZ052>055-072>075-220245-
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-
431 PM EDT Sun Apr 21 2024

.TONIGHT...East to southeast winds 10 to 15 knots, becoming
southeast to south and decreasing to 5 to 10 knots. Seas subsiding
to 1 to 2 feet.
.MONDAY...South winds 5 to 10 knots, becoming west to northwest
and increasing to 10 to 15 knots. Seas 1 to 2 feet.
.MONDAY NIGHT...Northwest to north winds near 15 knots, becoming
north to northeast. Seas building to 2 to 4 feet. Isolated
showers in the evening east of Alligator Reef Light.
.TUESDAY...Northeast winds near 15 knots, becoming northeast to
east. Seas 3 to 5 feet. Isolated showers.
.TUESDAY NIGHT...Northeast to east winds 15 to 20 knots, becoming
east and decreasing to near 15 knots. Seas 4 to 6 feet, subsiding
to 3 to 5 feet. Isolated showers.
.WEDNESDAY...Northeast to east winds near 15 knots. Seas 3 to 5
feet. Isolated showers.
.WEDNESDAY NIGHT...East winds near 15 knots. Seas 3 to 5 feet.
Isolated showers.
.THURSDAY...East winds near 15 knots, increasing to 15 to 20
knots. Seas 3 to 5 feet. Isolated showers.
.THURSDAY NIGHT AND FRIDAY...East winds 15 to 20 knots. Seas 4 to
5 feet.
.FRIDAY NIGHT...East winds near 20 knots. Seas 5 to 6 feet.

$$

GMZ033-034-220245-
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-
431 PM EDT Sun Apr 21 2024

.TONIGHT...Variable winds 5 to 10 knots, becoming south to
southwest and decreasing to near 5 knots. Seas subsiding to 1
foot or less.
.MONDAY...Southwest to west winds near 5 knots, becoming
northwest to north and increasing to near 15 knots. Seas building
to 2 to 3 feet. Isolated showers in the afternoon.
.MONDAY NIGHT...Northwest to north winds 15 to 20 knots, becoming
north to northeast. Seas building to 3 to 4 feet.
.TUESDAY...Northeast winds 15 to 20 knots, becoming northeast to
east and decreasing to 10 to 15 knots. Seas 4 to 5 feet,
subsiding to 3 to 4 feet in the afternoon.
.TUESDAY NIGHT...East winds 10 to 15 knots, increasing to near 15
knots. Seas 2 to 3 feet. Isolated showers.
.WEDNESDAY...East winds near 15 knots, decreasing to 10 to 15
knots. Seas 2 to 3 feet. Isolated showers.
.WEDNESDAY NIGHT...East winds 10 to 15 knots, increasing to near
15 knots. Seas 2 to 3 feet. Isolated showers.
.THURSDAY...East winds near 15 knots. Seas 2 to 3 feet.
.THURSDAY NIGHT...East winds near 15 knots, increasing to 15 to
20 knots. Seas building to 3 to 4 feet.
.FRIDAY...East winds 15 to 20 knots. Seas 3 to 4 feet.
.FRIDAY NIGHT...East winds near 20 knots. Seas 4 to 5 feet.

$$

BT/AJP