Coastal Waters Forecast
Issued by NWS Key West, FL

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522
FZUS52 KKEY 132034
CWFKEY

Coastal Waters Forecast for the Florida Keys
National Weather Service Key West FL
434 PM EDT Thu Jun 13 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.

GMZ005-140245-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
434 PM EDT Thu Jun 13 2024

.SYNOPSIS...The pattern for the remainder of the week will
feature weak high pressure over the western North Atlantic and a
frontal boundary stalled over northern Florida. However, the main
weather maker will be a large cyclonic system centered over
Central America. Mainly moderate breezes and an extended period of
unsettled weather featuring thundery squalls will persist tonight
through Friday night. Rain and thunder chances will decrease
gradually starting Saturday. Breezes will freshen by Sunday night,
with moderate to fresh easterly breezes expected for late in the
weekend into early next week.

The Approximate Shoreward Edge of the Gulf Stream as of June 12,
2024...

66 NM South of Dry Tortugas Light...on Loggerhead Key.
24 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
17 NM South of Sand Key Light...off Key West.
28 NM South of Looe Key...off Big Pine Key.
8  NM South of Sombrero Key Light...off Marathon.
4  NM South of Alligator Reef Light...off Islamorada.
2  NM South of Molasses Reef Light...off Key Largo.

Gulf Stream Information Courtesy of the National Weather Service in
Key West.

$$

GMZ031-140245-
Florida Bay including Barnes Sound, Blackwater Sound, and
Buttonwood Sound-
434 PM EDT Thu Jun 13 2024

.TONIGHT...South to southwest winds 10 to 15 knots, increasing to
near 15 knots. Bay waters a light to moderate chop, becoming a
moderate chop. Widespread showers and scattered thunderstorms.
.FRIDAY...South to southwest winds near 15 knots, becoming
southwest and decreasing to 5 to 10 knots. Bay waters a moderate
chop, becoming smooth to a light chop. Numerous showers and
scattered thunderstorms.
.FRIDAY NIGHT...South to southwest winds 5 to 10 knots. Bay
waters smooth to a light chop. Scattered showers and
thunderstorms.
.SATURDAY...Southeast to south winds 5 to 10 knots, becoming
northeast to east. Bay waters smooth to a light chop. Scattered
showers and isolated thunderstorms.
.SATURDAY NIGHT...Northeast to east winds 5 to 10 knots. Bay
waters smooth to a light chop. Scattered showers and isolated
thunderstorms.
.SUNDAY...Northeast to east winds 5 to 10 knots, increasing to
near 10 knots. Bay waters smooth to a light chop, becoming a
light chop. Scattered showers and isolated thunderstorms.
.SUNDAY NIGHT...Northeast to east winds 10 to 15 knots, increasing
to near 15 knots. Bay waters a light to moderate chop, becoming a
moderate chop. Isolated showers and thunderstorms.
.MONDAY...East winds near 15 knots, increasing to 15 to 20 knots.
Bay waters a moderate chop, becoming choppy. Scattered showers
and isolated thunderstorms.
.MONDAY NIGHT THROUGH TUESDAY NIGHT...East winds 15 to 20 knots.
Bay waters choppy. Scattered showers and isolated thunderstorms.

$$

GMZ032-035-140245-
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-
434 PM EDT Thu Jun 13 2024

.TONIGHT...South to southwest winds 10 to 15 knots, increasing to
near 15 knots. Seas 1 to 2 feet, except 2 to 3 feet west of the
Marquesas Keys. Nearshore waters a light to moderate chop,
becoming a moderate chop. Widespread showers and scattered
thunderstorms.
.FRIDAY...South to southwest winds near 15 knots, becoming
southwest and decreasing to near 10 knots. Seas subsiding to
around 1 foot. Nearshore waters a moderate chop, becoming a light
chop. Numerous showers and scattered thunderstorms.
.FRIDAY NIGHT...South to southwest winds 5 to 10 knots. Seas
1 foot or less. Nearshore waters smooth to a light chop.
Scattered showers and thunderstorms.
.SATURDAY...South to southwest winds 5 to 10 knots, becoming east
to southeast. Seas 1 foot or less. Nearshore waters smooth to a
light chop. Scattered showers and isolated thunderstorms.
.SATURDAY NIGHT...East winds 5 to 10 knots, increasing to near 10
knots. Seas around 1 foot. Nearshore waters smooth to a light
chop, becoming a light chop. Scattered showers and isolated
thunderstorms.
.SUNDAY...East winds near 10 knots. Seas around 1 foot. Nearshore
waters a light chop. Scattered showers and isolated
thunderstorms.
.SUNDAY NIGHT...Northeast to east winds 10 to 15 knots,
increasing to near 15 knots. Seas 1 to 2 feet, except 2 to 3 feet
west of the Marquesas Keys. Nearshore waters a light to moderate
chop, becoming a moderate chop. Isolated showers and
thunderstorms.
.MONDAY...East winds 15 to 20 knots. Seas building to 2 to 3
feet, except building to 3 to 4 feet, occasionally to 5 feet west
of the Marquesas Keys. Nearshore waters choppy. Scattered showers
and isolated thunderstorms.
.MONDAY NIGHT THROUGH TUESDAY NIGHT...East winds 15 to 20 knots.
Seas 2 to 3 feet, except 3 to 5 feet, occasionally to 6 feet west
of the Marquesas Keys. Nearshore waters choppy. Scattered showers
and isolated thunderstorms.

$$

GMZ042-043-140245-
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-
434 PM EDT Thu Jun 13 2024

.TONIGHT...South to southwest winds 10 to 15 knots, increasing to
near 15 knots. Seas around 2 feet. Nearshore waters a light to
moderate chop, becoming a moderate chop. Widespread showers and
scattered thunderstorms.
.FRIDAY...South to southwest winds near 15 knots, becoming
southwest and decreasing to near 10 knots. Seas subsiding to 1 to
2 feet. Nearshore waters a moderate chop, becoming a light chop.
Numerous showers and scattered thunderstorms.
.FRIDAY NIGHT...South winds 5 to 10 knots. Seas around 1 foot.
Nearshore waters smooth to a light chop. Scattered showers and
thunderstorms.
.SATURDAY...Southeast to south winds 5 to 10 knots, becoming
northeast to east. Seas around 1 foot. Nearshore waters smooth to
a light chop. Scattered showers and isolated thunderstorms.
.SATURDAY NIGHT...Northeast to east winds 5 to 10 knots, becoming
east and increasing to near 10 knots. Seas around 1 foot.
Nearshore waters smooth to a light chop, becoming a light chop.
Scattered showers and isolated thunderstorms.
.SUNDAY...East winds near 10 knots, increasing to 10 to 15 knots.
Seas 1 to 2 feet. Nearshore waters a light chop, becoming a light
to moderate chop. Scattered showers and isolated thunderstorms.
.SUNDAY NIGHT...East winds 10 to 15 knots, increasing to near 15
knots. Seas building to around 2 feet. Nearshore waters a light
to moderate chop, becoming a moderate chop. Scattered showers and
isolated thunderstorms.
.MONDAY...East winds 15 to 20 knots. Seas 2 to 3 feet. Nearshore
waters choppy. Scattered showers and isolated thunderstorms.
.MONDAY NIGHT THROUGH TUESDAY NIGHT...East winds 15 to 20 knots.
Seas 2 to 4 feet, occasionally to 5 feet. Nearshore waters
choppy. Scattered showers and isolated thunderstorms.

$$

GMZ044-140245-
Hawk Channel from west end of Seven Mile Bridge to Halfmoon Shoal
out to the reef-
434 PM EDT Thu Jun 13 2024

...SMALL CRAFT SHOULD EXERCISE CAUTION...

.TONIGHT...South to southwest winds 15 to 20 knots. Seas 2 to 3
feet. Nearshore waters choppy. Widespread showers and scattered
thunderstorms.
.FRIDAY...South to southwest winds 15 to 20 knots, becoming
southwest and decreasing to near 10 knots. Seas subsiding to
around 2 feet. Nearshore waters choppy, becoming a light chop.
Numerous showers and scattered thunderstorms.
.FRIDAY NIGHT...South winds 5 to 10 knots. Seas subsiding to around
1 foot. Nearshore waters smooth to a light chop. Scattered
showers and thunderstorms.
.SATURDAY...Southeast to south winds 5 to 10 knots, becoming
northeast to east. Seas around 1 foot. Nearshore waters smooth to
a light chop. Scattered showers and isolated thunderstorms.
.SATURDAY NIGHT...Northeast to east winds 5 to 10 knots, becoming
east and increasing to near 10 knots. Seas building to 1 to 2 feet.
Nearshore waters smooth to a light chop, becoming a light chop.
Scattered showers and isolated thunderstorms.
.SUNDAY...East winds near 10 knots, increasing to 10 to 15 knots.
Seas building to around 2 feet. Nearshore waters a light chop,
becoming a light to moderate chop. Scattered showers and isolated
thunderstorms.
.SUNDAY NIGHT...East winds 10 to 15 knots, increasing to near 15
knots. Seas building to 2 to 3 feet. Nearshore waters a light to
moderate chop, becoming a moderate chop. Scattered showers and
isolated thunderstorms.
.MONDAY...East winds 15 to 20 knots. Seas 2 to 4 feet,
occasionally to 5 feet. Nearshore waters choppy. Scattered
showers and isolated thunderstorms.
.MONDAY NIGHT THROUGH TUESDAY NIGHT...East winds 15 to 20 knots.
Seas 3 to 5 feet, occasionally to 6 feet. Nearshore waters
choppy. Scattered showers and isolated thunderstorms.

$$

GMZ052-053-072-073-140245-
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 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-
434 PM EDT Thu Jun 13 2024

.TONIGHT...South to southwest winds 10 to 15 knots. Seas 1 to 2
feet. Wave Detail: Southwest 1 foot at 5 seconds and southeast 1
foot at 4 seconds. Widespread showers and scattered thunderstorms.
.FRIDAY...South to southwest winds 10 to 15 knots, decreasing to
near 10 knots. Seas 1 to 2 feet. Wave Detail: Southeast to south
1 foot at 3 seconds and northwest to north 1 foot at 3 seconds.
Numerous showers and scattered thunderstorms.
.FRIDAY NIGHT...South winds 5 to 10 knots. Seas around 1 foot.
Wave Detail: Northwest 1 foot at 4 seconds and southeast 1 foot
at 3 seconds. Scattered showers and thunderstorms.
.SATURDAY...Southeast winds 5 to 10 knots, becoming northeast to
east. Seas around 1 foot. Scattered showers and isolated
thunderstorms.
.SATURDAY NIGHT...Northeast to east winds 5 to 10 knots, becoming
east and increasing to near 10 knots. Seas building to 1 to 3
feet. Scattered showers and isolated thunderstorms.
.SUNDAY...Northeast to east winds 10 to 15 knots. Seas building to
2 to 3 feet. Scattered showers and isolated thunderstorms.
.SUNDAY NIGHT...Northeast to east winds 10 to 15 knots, increasing
to near 15 knots. Seas building to 2 to 4 feet. Scattered showers
and isolated thunderstorms.
.MONDAY...East winds near 15 knots, increasing to 15 to 20 knots.
Seas 3 to 4 feet, occasionally to 5 feet. Scattered showers and
isolated thunderstorms.
.MONDAY NIGHT THROUGH TUESDAY NIGHT...East winds 15 to 20 knots.
Seas 4 to 5 feet, occasionally to 6 feet. Scattered showers and
isolated thunderstorms.

$$

GMZ054-055-074-075-140245-
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 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-
434 PM EDT Thu Jun 13 2024

...SMALL CRAFT SHOULD EXERCISE CAUTION...

.TONIGHT...South to southwest winds 15 to 20 knots. Seas 4 to 5
feet, occasionally to 6 feet. Wave Detail: Southwest 3 feet at 5
seconds and southeast 1 to 2 feet at 4 seconds. Widespread showers
and scattered thunderstorms.
.FRIDAY...South to southwest winds 15 to 20 knots, decreasing to
near 10 knots. Seas 4 to 5 feet occasionally to 6 feet, subsiding
to around 2 feet. Wave Detail: Southeast to south 3 feet at 3
seconds and northwest to north 1 feet at 3 seconds. Numerous
showers and scattered thunderstorms.
.FRIDAY NIGHT...South winds 5 to 10 knots. Seas 1 to 2 feet. Wave
Detail: Northwest 1 foot at 4 seconds and southeast 1 foot at 3
seconds. Scattered showers and thunderstorms.
.SATURDAY...Southeast winds 5 to 10 knots, becoming northeast to
east. Seas 1 to 2 feet. Scattered showers and isolated
thunderstorms.
.SATURDAY NIGHT...Northeast to east winds 5 to 10 knots, becoming
east and increasing to near 10 knots. Seas building to 2 to 3
feet. Scattered showers and isolated thunderstorms.
.SUNDAY...Northeast to east winds 10 to 15 knots. Seas building to
2 to 4 feet. Scattered showers and isolated thunderstorms.
.SUNDAY NIGHT...Northeast to east winds 10 to 15 knots, increasing
to near 15 knots. Seas building to 3 to 5 feet. Scattered showers
and isolated thunderstorms.
.MONDAY...East winds near 15 knots, increasing to 15 to 20 knots.
Seas 3 to 5 feet, occasionally to 6 feet. Scattered showers and
isolated thunderstorms.
.MONDAY NIGHT THROUGH TUESDAY NIGHT...East winds 15 to 20 knots.
Seas 4 to 6 feet, occasionally to 7 feet. Scattered showers and
isolated thunderstorms.

$$

GMZ033-034-140245-
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-
434 PM EDT Thu Jun 13 2024

.TONIGHT...South to southwest winds 10 to 15 knots, increasing to
near 15 knots. Seas 2 to 3 feet. Wave Detail: Southwest 2 feet at
5 seconds. Widespread showers and scattered thunderstorms.
.FRIDAY...South to southwest winds near 15 knots, decreasing to 10
to 15 knots. Seas 2 to 3 feet. Wave Detail: South to southwest 3
feet at 5 seconds. Widespread showers and scattered thunderstorms.
.FRIDAY NIGHT...South to southwest winds near 10 knots. Seas
subsiding to 1 to 2 feet. Wave Detail: South to southwest 2 feet
at 4 seconds. Numerous showers and scattered thunderstorms.
.SATURDAY...South winds 5 to 10 knots, becoming east to southeast.
Seas around 1 foot. Scattered showers and isolated thunderstorms.
.SATURDAY NIGHT...East to southeast winds 5 to 10 knots, becoming
east and increasing to near 10 knots. Seas building to 1 to 2
feet. Scattered showers and isolated thunderstorms.
.SUNDAY...East winds near 10 knots, increasing to 10 to 15 knots.
Seas 1 to 3 feet. Isolated showers and thunderstorms.
.SUNDAY NIGHT...East winds 10 to 15 knots, increasing to near 15
knots. Seas building to 2 to 3 feet. Isolated showers and
thunderstorms.
.MONDAY...East winds 15 to 20 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Scattered showers and isolated
thunderstorms.
.MONDAY NIGHT...East winds near 20 knots. Seas 3 to 5 feet,
occasionally to 6 feet. Isolated showers and thunderstorms.
.TUESDAY AND TUESDAY NIGHT...East winds near 20 knots. Seas 4 to
6 feet, occasionally to 7 feet. Scattered showers and isolated
thunderstorms.

$$

BT