Coastal Waters Forecast
Issued by NWS Key West, FL

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FZUS52 KKEY 092021
CWFKEY

Coastal Waters Forecast for the Florida Keys
National Weather Service Key West FL
421 PM EDT Thu May 9 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.

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.

GMZ005-100230-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
421 PM EDT Thu May 9 2024

.SYNOPSIS...High pressure over the western North Atlantic will
maintain gentle to moderate southeast to south breezes tonight.
Breezes will slacken and veer to the south and southwest on
Friday, continuing to veer around the compass during the weekend
as a weak frontal boundary moves down the Florida peninsula. The
front will dissipate near the Keys waters on Sunday, then
southeast breezes will resume early next week as another high
pressure area moves over the western Atlantic.

$$

GMZ031-100230-
Florida Bay including Barnes Sound, Blackwater Sound, and
Buttonwood Sound-
421 PM EDT Thu May 9 2024

.TONIGHT...Southeast to south winds near 10 knots, increasing to
10 to 15 knots. Bay waters a light chop, becoming a light to
moderate chop.
.FRIDAY...Southeast to south winds 10 to 15 knots, becoming south
to southwest and decreasing to near 10 knots in the afternoon.
Bay waters a light to moderate chop, becoming a light chop.
.FRIDAY NIGHT...Southwest to west winds 5 to 10 knots. Bay waters
smooth to a light chop.
.SATURDAY...West winds near 10 knots, increasing to near 15 knots
in the afternoon. Bay waters a light chop, becoming a moderate
chop. Isolated showers.
.SATURDAY NIGHT...Northwest winds near 15 knots, decreasing to
near 10 knots after midnight. Bay waters a moderate chop, becoming
a light chop.
.SUNDAY...Northwest winds 5 to 10 knots, becoming southwest
and decreasing to near 5 knots. Bay waters smooth to a light
chop, becoming smooth.
.SUNDAY NIGHT...South to southwest winds near 5 knots, becoming
east to southeast and increasing to 5 to 10 knots after midnight.
Bay waters smooth, becoming smooth to a light chop. Isolated
showers.
.MONDAY...East to southeast winds near 10 knots, increasing to
near 15 knots. Bay waters a light chop, becoming a moderate chop.
Isolated showers and thunderstorms.
.MONDAY NIGHT...East to southeast winds 10 to 15 knots, becoming
southeast to south and increasing to near 15 knots. Bay waters a
light to moderate chop, becoming a moderate chop. Isolated showers
and thunderstorms.
.TUESDAY...Southeast to south winds near 15 knots, decreasing to
near 10 knots. Bay waters a moderate chop, becoming a light chop.
Isolated showers and thunderstorms.
.TUESDAY NIGHT...Southeast to south winds near 10 knots. Bay
waters a light chop. Isolated showers and thunderstorms.

$$

GMZ032-035-100230-
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-
421 PM EDT Thu May 9 2024

.TONIGHT...Southeast winds near 10 knots, becoming southeast to
south and increasing to near 15 knots after midnight. Seas 1 to 2
feet. Nearshore waters a light chop, becoming a moderate chop.
.FRIDAY...Southeast to south winds near 15 knots, becoming
south to southwest and decreasing to near 10 knots in the
afternoon. Seas 1 to 2 feet, subsiding to around 1 foot.
Nearshore waters a moderate chop, becoming a light chop.
.FRIDAY NIGHT...Southwest to west winds 5 to 10 knots. Seas 1 foot
or less. Nearshore waters smooth to a light chop.
.SATURDAY...West winds near 10 knots, becoming west to northwest
and increasing to 10 to 15 knots. Seas around 1 foot, building to
1 to 2 feet. Nearshore waters a light chop, becoming a light to
moderate chop. Isolated showers.
.SATURDAY NIGHT...Northwest winds near 15 knots, decreasing to
near 10 knots. Seas 1 to 2 feet. Nearshore waters a moderate
chop, becoming a light chop.
.SUNDAY...Northwest to north winds 5 to 10 knots, decreasing to
near 5 knots. Seas 1 foot or less. Nearshore waters smooth to a
light chop, becoming smooth.
.SUNDAY NIGHT...North winds near 5 knots, becoming east to
southeast and increasing to 5 to 10 knots after midnight. Seas 1
foot or less. Nearshore waters smooth, becoming smooth to a light
chop. Isolated showers.
.MONDAY...East to southeast winds near 10 knots, increasing to
near 15 knots. Seas around 1 foot, building to 1 to 2 feet.
Nearshore waters a light chop, becoming a moderate chop. Isolated
showers and thunderstorms.
.MONDAY NIGHT...East to southeast winds 10 to 15 knots, becoming
southeast to south and increasing to near 15 knots. Seas 1 to 2
feet. Nearshore waters a light to moderate chop, becoming a
moderate chop. Isolated showers and thunderstorms.
.TUESDAY...Southeast to south winds near 15 knots, decreasing to
near 10 knots. Seas 1 to 3 feet, subsiding to 1 to 2 feet.
Nearshore waters a moderate chop, becoming a light chop. Isolated
showers and thunderstorms.
.TUESDAY NIGHT...Southeast to south winds 10 to 15 knots. Seas
1 to 2 feet. Nearshore waters a light to moderate chop. Isolated
showers and thunderstorms.

$$

GMZ042>044-100230-
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-
421 PM EDT Thu May 9 2024

.TONIGHT...Southeast winds near 10 knots, becoming southeast to
south and increasing to near 15 knots after midnight. Seas around
2 feet, building to 2 to 3 feet. Nearshore waters a light chop,
becoming a moderate chop.
.FRIDAY...Southeast to south winds near 15 knots, becoming south
to southwest and decreasing to near 10 knots in the afternoon.
Seas 2 to 3 feet, subsiding to 1 to 2 feet. Nearshore waters a
moderate chop, becoming a light chop.
.FRIDAY NIGHT...Southwest to west winds 5 to 10 knots. Seas
around 1 foot. Nearshore waters smooth to a light chop.
.SATURDAY...West winds near 10 knots, increasing to near 15 knots
in the afternoon. Seas 1 to 2 feet, building to 1 to 3 feet.
Nearshore waters a light chop, becoming a moderate chop.
.SATURDAY NIGHT...Northwest winds near 15 knots, decreasing to
near 10 knots. Seas 2 to 3 feet, subsiding to 1 to 2 feet.
Nearshore waters a moderate chop, becoming a light chop.
.SUNDAY...Northwest to north winds 5 to 10 knots, becoming north
to northeast and decreasing to near 5 knots. Seas around 1 foot.
Nearshore waters smooth to a light chop, becoming smooth.
.SUNDAY NIGHT...North to northeast winds near 5 knots, becoming
east to southeast and increasing to 5 to 10 knots after midnight.
Seas 1 foot or less. Nearshore waters smooth, becoming smooth to
a light chop. Isolated showers.
.MONDAY...East to southeast winds near 10 knots, increasing to
near 15 knots. Seas 1 to 2 feet, building to 1 to 3 feet.
Nearshore waters a light chop, becoming a moderate chop. Isolated
showers and thunderstorms.
.MONDAY NIGHT...East to southeast winds 10 to 15 knots, becoming
southeast to south and increasing to near 15 knots. Seas 2 to 3
feet, building to 2 to 4 feet. Nearshore waters a light to
moderate chop, becoming a moderate chop. Isolated showers and
thunderstorms.
.TUESDAY...Southeast to south winds near 15 knots, decreasing to
10 to 15 knots. Seas 2 to 4 feet, subsiding to 2 to 3 feet.
Nearshore waters a moderate chop, becoming a light to moderate
chop. Isolated showers and thunderstorms.
.TUESDAY NIGHT...Southeast to south winds 10 to 15 knots. Seas
2 to 3 feet. Nearshore waters a light to moderate chop. Isolated
showers and thunderstorms.

$$

GMZ052>055-072>075-100230-
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-
421 PM EDT Thu May 9 2024

.TONIGHT...East to southeast winds 10 to 15 knots, becoming
southeast to south and increasing to near 15 knots. Seas 2 to 3
feet, building to 2 to 4 feet. Wave Detail: East to southeast 2
feet at 4 seconds.
.FRIDAY...Southeast to south winds 10 to 15 knots, becoming
variable and decreasing to 5 to 10 knots in the afternoon. Seas 2
to 3 feet, subsiding to 1 to 2 feet. Wave Detail: East to
southeast 2 feet at 4 seconds.
.FRIDAY NIGHT...Variable winds 5 to 10 knots, becoming southwest
after midnight. Seas 1 to 2 feet. Wave Detail: East to southeast
1 foot at 4 seconds.
.SATURDAY...West winds 5 to 10 knots, becoming west to northwest
and increasing to 10 to 15 knots in the afternoon. Seas 1 to 2
feet, building to 1 to 3 feet.
.SATURDAY NIGHT...Northwest winds 10 to 15 knots, becoming north
to northeast and decreasing to near 10 knots. Seas 1 to 3 feet,
subsiding to 1 to 2 feet.
.SUNDAY...North to northeast winds 5 to 10 knots, becoming
northeast. Seas 1 to 2 feet. Isolated showers.
.SUNDAY NIGHT...Northeast to east winds 5 to 10 knots, becoming
east to southeast and increasing to near 10 knots after midnight.
Seas 1 to 2 feet. Isolated showers.
.MONDAY...East to southeast winds near 10 knots, increasing to 10
to 15 knots. Seas 1 to 2 feet, building to 1 to 3 feet. Isolated
showers and thunderstorms.
.MONDAY NIGHT...East to southeast winds 10 to 15 knots, becoming
southeast to south and increasing to near 15 knots. Seas 2 to 3
feet, building to 2 to 4 feet. Isolated showers and thunderstorms.
.TUESDAY...Southeast to south winds near 15 knots, decreasing to
10 to 15 knots. Seas 2 to 4 feet, subsiding to 2 to 3 feet.
Isolated showers and thunderstorms.
.TUESDAY NIGHT...Southeast to south winds 10 to 15 knots. Seas
2 to 3 feet. Isolated showers and thunderstorms.

$$

GMZ033-034-100230-
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-
421 PM EDT Thu May 9 2024

.TONIGHT...Southeast winds near 10 knots, becoming southeast to
south and increasing to 10 to 15 knots. Seas 1 to 2 feet,
building to 1 to 3 feet. Wave Detail: Southeast 1 foot at 4
seconds.
.FRIDAY...Southeast to south winds 10 to 15 knots, becoming
southwest to west and decreasing to 5 to 10 knots in the
afternoon. Seas 1 to 3 feet, subsiding to 1 to 2 feet. Wave
Detail: Southeast to south 1 foot at 3 seconds.
.FRIDAY NIGHT...West to northwest winds 5 to 10 knots. Seas
around 1 foot. Wave Detail: West to northwest 1 foot at 3 seconds
and northeast to east 1 foot at 3 seconds. Isolated showers.
.SATURDAY...West winds 5 to 10 knots, becoming west to northwest
and increasing to near 10 knots. Seas around 1 foot, building to
1 to 2 feet. Isolated showers.
.SATURDAY NIGHT...West to northwest winds 10 to 15 knots,
becoming north and decreasing to 5 to 10 knots. Seas 1 to 2 feet.
Isolated showers.
.SUNDAY...North to northeast winds 5 to 10 knots. Seas 1 to 2 feet.
.SUNDAY NIGHT...North to northeast winds 5 to 10 knots, becoming
east after midnight. Seas 1 to 2 feet. Isolated showers.
.MONDAY...East to southeast winds 5 to 10 knots, increasing to 10
to 15 knots. Seas 1 to 2 feet, building to 1 to 3 feet. Isolated
showers and thunderstorms.
.MONDAY NIGHT...East to southeast winds 10 to 15 knots, becoming
southeast to south and increasing to near 15 knots. Seas 1 to 3
feet, building to 2 to 3 feet. Isolated showers and thunderstorms.
.TUESDAY...Southeast to south winds near 15 knots, decreasing to
near 10 knots. Seas 2 to 3 feet. Isolated showers and
thunderstorms.
.TUESDAY NIGHT...Southeast winds near 10 knots, becoming
southeast to south and increasing to near 15 knots. Seas 2 to 3
feet. Isolated showers and thunderstorms.

$$

MJV