Coastal Waters Forecast
Issued by NWS Key West, FL

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FZUS52 KKEY 180224
CWFKEY

Coastal Waters Forecast for the Florida Keys
National Weather Service Key West FL
1024 PM EDT Wed Jul 17 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.

GMZ005-180830-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
1024 PM EDT Wed Jul 17 2024

.SYNOPSIS...Atlantic ridging will remain across the Florida
Peninsula through the extended forecast. This will result in
gentle to moderate east to southeasterly breezes across Keys
waters. Winds will tend to surge in the evening and night hours
and lull during the day. Winds may strengthen this weekend as the
ridge lifts northward into North Florida and the southeastern
United States.

The Approximate Shoreward Edge of the Gulf Stream as of July 8...

66 NM South of Dry Tortugas Light...on Loggerhead Key.
32 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
31 NM South of Sand Key Light...off Key West.
 8 NM South of Looe Key...off Big Pine Key.
 5 NM South of Sombrero Key Light...off Marathon.
 6 NM Southeast of Alligator Reef Light...off Islamorada.
 4 NM Southeast of Molasses Reef Light...off Key Largo.

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

$$

GMZ031-180830-
Florida Bay including Barnes Sound, Blackwater Sound, and
Buttonwood Sound-
1024 PM EDT Wed Jul 17 2024

.OVERNIGHT...East winds near 10 knots, becoming east to southeast
10 to 15 knots. Bay waters a light chop, becoming a light to
moderate chop. Scattered showers and isolated thunderstorms.
.THURSDAY...East to southeast winds near 10 knots. Bay waters a
light chop. Scattered showers and isolated thunderstorms.
.THURSDAY NIGHT...East to southeast winds 10 to 15 knots. Bay
waters a light to moderate chop. Isolated showers and
thunderstorms.
.FRIDAY...East to southeast winds near 10 knots. Bay waters a
light chop. Scattered showers and isolated thunderstorms.
.FRIDAY NIGHT...East to southeast winds 10 to 15 knots. Bay
waters a light to moderate chop. Scattered showers and isolated
thunderstorms.
.SATURDAY...East to southeast winds 10 to 15 knots. Bay waters a
light to moderate chop. Scattered showers and isolated
thunderstorms.
.SATURDAY NIGHT...East winds 10 to 15 knots. Bay waters a light
to moderate chop. Scattered showers and isolated thunderstorms.
.SUNDAY...East winds increasing to near 15 knots. Bay waters
becoming a moderate chop. Scattered showers and isolated
thunderstorms.
.SUNDAY NIGHT...East to southeast winds decreasing to 10 to 15
knots. Bay waters becoming a light to moderate chop. Scattered
showers and isolated thunderstorms.
.MONDAY...Southeast winds 10 to 15 knots. Bay waters a light to
moderate chop. Scattered showers and isolated thunderstorms.
.MONDAY NIGHT...Southeast winds near 15 knots. Bay waters a
moderate chop. Scattered showers and isolated thunderstorms.

$$

GMZ032-035-180830-
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-
1024 PM EDT Wed Jul 17 2024

.OVERNIGHT...East winds near 10 knots, becoming east to southeast
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.
.THURSDAY...East to southeast winds near 10 knots. Seas subsiding
to around 1 foot. Nearshore waters a light chop. Scattered
showers and isolated thunderstorms.
.THURSDAY NIGHT...East to southeast winds 10 to 15 knots. Seas
building to 1 to 2 feet. Nearshore waters a light to moderate
chop. Isolated showers and thunderstorms.
.FRIDAY...East to southeast winds near 10 knots. Seas around 1
foot. Nearshore waters a light chop. Scattered showers and
isolated thunderstorms.
.FRIDAY NIGHT...East to southeast winds 10 to 15 knots. Seas
1 to 2 feet. Nearshore waters a light to moderate chop. Scattered
showers and isolated thunderstorms.
.SATURDAY...East to southeast winds near 15 knots. Seas 1 to 2
feet, except 2 to 3 feet west of the Marquesas Keys. Nearshore
waters a moderate chop. Scattered showers and isolated
thunderstorms.
.SATURDAY NIGHT AND SUNDAY...East to southeast winds near 15
knots. Seas 1 to 2 feet, except 2 to 3 feet west of the Marquesas
Keys. Nearshore waters a moderate chop. Scattered showers and
isolated thunderstorms.
.SUNDAY NIGHT...East to southeast winds decreasing to 10 to 15
knots. Seas 1 to 2 feet, except 2 to 3 feet west of the Marquesas
Keys. Nearshore waters becoming a light to moderate chop.
Scattered showers and isolated thunderstorms.
.MONDAY...Southeast winds 10 to 15 knots. Seas 1 to 2 feet.
Nearshore waters a light to moderate chop. Scattered showers and
isolated thunderstorms.
.MONDAY NIGHT...Southeast winds near 15 knots. Seas building to 2
to 3 feet. Nearshore waters a moderate chop. Scattered showers
and isolated thunderstorms.

$$

GMZ042>044-180830-
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-
1024 PM EDT Wed Jul 17 2024

.OVERNIGHT...Northeast to east winds 10 to 15 knots, becoming east
to southeast. Seas 1 to 3 feet. Nearshore waters a light to
moderate chop. Scattered showers and isolated thunderstorms.
.THURSDAY...East to southeast winds near 10 knots. Seas subsiding
to 1 to 2 feet. Nearshore waters a light chop. Scattered showers
and isolated thunderstorms.
.THURSDAY NIGHT...East to southeast winds 10 to 15 knots. Seas
building to around 2 feet. Nearshore waters a light to moderate
chop. Isolated showers and thunderstorms.
.FRIDAY...East to southeast winds near 10 knots. Seas 1 to
2 feet. Nearshore waters a light chop. Scattered showers and
isolated thunderstorms.
.FRIDAY NIGHT...East to southeast winds increasing to near 15
knots. Seas building to 2 to 3 feet. Nearshore waters becoming a
moderate chop. Scattered showers and isolated thunderstorms.
.SATURDAY...East to southeast winds near 15 knots. Seas 2 to
3 feet. Nearshore waters a moderate chop. Scattered showers and
isolated thunderstorms.
.SATURDAY NIGHT AND SUNDAY...East to southeast winds near 15
knots. Seas 2 to 3 feet. Nearshore waters a moderate chop.
Scattered showers and isolated thunderstorms.
.SUNDAY NIGHT...East to southeast winds decreasing to 10 to 15
knots. Seas 2 to 3 feet. Nearshore waters becoming a light to
moderate chop. Scattered showers and isolated thunderstorms.
.MONDAY...Southeast winds 10 to 15 knots. Seas 2 to 3 feet.
Nearshore waters a light to moderate chop. Scattered showers and
isolated thunderstorms.
.MONDAY NIGHT...Southeast winds near 15 knots. Seas 2 to 3 feet,
occasionally to 4 feet. Nearshore waters a moderate chop.
Scattered showers and isolated thunderstorms.

$$

GMZ052>055-072>075-180830-
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-
1024 PM EDT Wed Jul 17 2024

.OVERNIGHT...East winds 10 to 15 knots, becoming east to southeast.
Seas 2 to 3 feet. Wave Detail: East 3 feet at 5 seconds.
Scattered showers and isolated thunderstorms.
.THURSDAY...East to southeast winds decreasing to near 10 knots.
Seas subsiding to around 2 feet. Wave Detail: East 2 feet at 5
seconds. Isolated showers and thunderstorms.
.THURSDAY NIGHT...East to southeast winds 10 to 15 knots. Seas
2 to 3 feet. Wave Detail: East 2 feet at 4 seconds. Isolated
showers and thunderstorms.
.FRIDAY...East to southeast winds near 10 knots. Seas around 2
feet. Scattered showers and isolated thunderstorms.
.FRIDAY NIGHT...East winds increasing to near 15 knots. Seas 2 to
3 feet. Scattered showers and isolated thunderstorms.
.SATURDAY...East to southeast winds near 15 knots. Seas 3 to
4 feet, occasionally to 5 feet. Scattered showers and isolated
thunderstorms.
.SATURDAY NIGHT AND SUNDAY...East winds near 15 knots. Seas 3 to
5 feet, occasionally to 6 feet. Scattered showers and isolated
thunderstorms.
.SUNDAY NIGHT...East to southeast winds decreasing to 10 to 15
knots. Seas 3 to 4 feet, occasionally to 5 feet. Scattered showers
and isolated thunderstorms.
.MONDAY...Southeast winds 10 to 15 knots. Seas subsiding to 2 to 3
feet. Scattered showers and isolated thunderstorms.
.MONDAY NIGHT...East to southeast winds near 15 knots. Seas 3 to
4 feet, occasionally to 5 feet. Scattered showers and isolated
thunderstorms.

$$

GMZ033-034-180830-
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-
1024 PM EDT Wed Jul 17 2024

.OVERNIGHT...East winds near 10 knots, becoming east to southeast
10 to 15 knots. Seas 1 to 2 feet, building to 2 to 3 feet. Wave
Detail: East to southeast 2 feet at 4 seconds. Scattered showers
and isolated thunderstorms.
.THURSDAY...East to southeast winds near 10 knots. Seas subsiding
to 1 to 2 feet. Wave Detail: Southeast 1 foot at 3 seconds.
Scattered showers and isolated thunderstorms.
.THURSDAY NIGHT...East to southeast winds 10 to 15 knots. Seas
1 to 2 feet. Wave Detail: Southeast 2 feet at 4 seconds. Isolated
showers and thunderstorms.
.FRIDAY...Southeast winds near 10 knots. Seas 1 to 2 feet.
Scattered showers and isolated thunderstorms.
.FRIDAY NIGHT...East to southeast winds 10 to 15 knots. Seas 1 to
2 feet. Scattered showers and isolated thunderstorms.
.SATURDAY...East to southeast winds 10 to 15 knots. Seas around
2 feet. Scattered showers and isolated thunderstorms.
.SATURDAY NIGHT...East to southeast winds near 15 knots. Seas
2 to 3 feet. Scattered showers and isolated thunderstorms.
.SUNDAY...East to southeast winds decreasing to 10 to 15 knots.
Seas 2 to 3 feet. Scattered showers and isolated thunderstorms.
.SUNDAY NIGHT...East to southeast winds 10 to 15 knots. Seas
2 to 3 feet. Scattered showers and isolated thunderstorms.
.MONDAY...Southeast winds near 10 knots. Seas 1 to 2 feet.
Scattered showers and isolated thunderstorms.
.MONDAY NIGHT...Southeast winds increasing to near 15 knots. Seas
2 to 3 feet. Scattered showers and isolated thunderstorms.

$$