Coastal Waters Forecast
Issued by NWS Key West, FL

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FZUS52 KKEY 091420
CWFKEY

Coastal Waters Forecast for the Florida Keys
National Weather Service Key West FL
1020 AM EDT Tue Aug 9 2022

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.

GMZ005-092030-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
1020 AM EDT Tue Aug 9 2022

.SYNOPSIS...High pressure centered off the Southeast Coast will
maintain moderate to fresh east to southeast breezes across the
Florida Keys coastal waters through mid-week. As the ridge axis
slowly dips southward, winds will slacken by Wednesday night,
with gentle east to southeast breezes continuing through the end
of the week.

The Approximate Shoreward Edge of the Gulf Stream as of
August 09, 2022...

42 NM South of Dry Tortugas Light...on Loggerhead Key.
29 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
28 NM South of Sand Key Light...off Key West.
29 NM South of Looe Key...off Big Pine Key.
30 NM South of Sombrero Key Light...off Marathon.
22 NM Southeast of Alligator Reef Light...off Islamorada.
20 NM Southeast of Molasses Reef Light...off Key Largo.
17 NM East of Carysfort Reef Light...off Ocean Reef.

Gulf Stream Information Courtesy of the Naval Oceanographic Office.

$$

GMZ031-092030-
Florida Bay including Barnes Sound, Blackwater Sound, and
Buttonwood Sound-
1020 AM EDT Tue Aug 9 2022

.THIS AFTERNOON...East to southeast winds near 15 knots. Bay
waters a moderate chop. Scattered showers and thunderstorms.
.TONIGHT...East to southeast winds near 15 knots. Bay waters a
moderate chop. Scattered showers and thunderstorms, mainly in the
evening.
.WEDNESDAY...East to southeast winds near 15 knots, decreasing to 10
to 15 knots. Bay waters a moderate chop, becoming a light to
moderate chop.
.WEDNESDAY NIGHT AND THURSDAY...East winds 10 to 15 knots. Bay
waters a light to moderate chop. Isolated showers and
thunderstorms.
.THURSDAY NIGHT...East winds near 10 knots. Bay waters a light
chop. Isolated showers and thunderstorms.
.FRIDAY...East to southeast winds near 10 knots. Bay waters a
light chop. Isolated showers and thunderstorms.
.FRIDAY NIGHT...East to southeast winds 5 to 10 knots. Bay waters
smooth to a light chop. Isolated showers and thunderstorms.
.SATURDAY AND SATURDAY NIGHT...Southeast winds 5 to 10 knots. Bay
waters smooth to a light chop. Scattered showers and isolated
thunderstorms.

$$

GMZ032-035-092030-
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-
1020 AM EDT Tue Aug 9 2022

...SMALL CRAFT SHOULD EXERCISE CAUTION...

.THIS AFTERNOON...East to southeast winds 15 to 20 knots. Seas 1
to 3 feet, except 3 to 4 feet west of the Marquesas Keys.
Nearshore waters choppy. Scattered showers and thunderstorms.
.TONIGHT...East to southeast winds 15 to 20 knots, decreasing to
near 15 knots. Seas 1 to 3 feet. West of the Marquesas Keys, seas
3 to 4 feet, subsiding to 2 to 3 feet. Nearshore waters choppy,
becoming a moderate chop. Scattered showers and thunderstorms,
mainly in the evening.
.WEDNESDAY...East to southeast winds near 15 knots, decreasing to
10 to 15 knots. Seas 1 to 3 feet. Nearshore waters a moderate
chop, becoming a light to moderate chop. Isolated showers and
thunderstorms.
.WEDNESDAY NIGHT...East winds 10 to 15 knots. Seas 1 to 3 feet.
Nearshore waters a light to moderate chop. Isolated showers and
thunderstorms.
.THURSDAY...East to southeast winds 10 to 15 knots. Seas 1 to 2
feet. Nearshore waters a light to moderate chop. Isolated showers
and thunderstorms.
.THURSDAY NIGHT...East winds near 10 knots. Seas 1 to 2 feet.
Nearshore waters a light chop. Isolated showers and
thunderstorms.
.FRIDAY...East to southeast winds 5 to 10 knots. Seas around 1
foot. Nearshore waters smooth to a light chop. Isolated showers
and thunderstorms.
.FRIDAY NIGHT THROUGH SATURDAY NIGHT...East to southeast winds 5
to 10 knots. Seas 1 foot or less. Nearshore waters smooth to a
light chop. Isolated showers and thunderstorms.

$$

GMZ042>044-092030-
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-
1020 AM EDT Tue Aug 9 2022

...SMALL CRAFT SHOULD EXERCISE CAUTION...

.THIS AFTERNOON...East to southeast winds 15 to 20 knots. Seas 2
to 4 feet. Nearshore waters choppy. Scattered showers and
thunderstorms.
.TONIGHT...East to southeast winds 15 to 20 knots, decreasing to
near 15 knots. Seas 2 to 4 feet. Nearshore waters choppy, becoming
a moderate chop. Scattered showers and thunderstorms, mainly in
the evening.
.WEDNESDAY...East to southeast winds near 15 knots, decreasing to
10 to 15 knots. Seas 2 to 3 feet. Nearshore waters a moderate
chop, becoming a light to moderate chop. Isolated showers and
thunderstorms.
.WEDNESDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet.
Nearshore waters a light to moderate chop. Isolated showers and
thunderstorms.
.THURSDAY...East winds 10 to 15 knots. Seas around 2 feet. Nearshore
waters a light to moderate chop. Isolated showers and thunderstorms.
.THURSDAY NIGHT...East winds 10 to 15 knots, decreasing to near 10
knots. Seas around 2 feet. Nearshore waters a light to moderate
chop, becoming a light chop. Isolated showers and thunderstorms.
.FRIDAY...East winds near 10 knots. Seas 1 to 2 feet. Nearshore
waters a light chop. Isolated showers and thunderstorms.
.FRIDAY NIGHT THROUGH SATURDAY NIGHT...East to southeast winds 5
to 10 knots. Seas around 1 foot. Nearshore waters smooth to a
light chop. Isolated showers and thunderstorms.

$$

GMZ052>055-072>075-092030-
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-
1020 AM EDT Tue Aug 9 2022

...SMALL CRAFT SHOULD EXERCISE CAUTION...

.THIS AFTERNOON...East to southeast winds 15 to 20 knots. Seas 4
to 6 feet. Numerous showers and scattered thunderstorms.
.TONIGHT...East to southeast winds 15 to 20 knots. Seas 4 to
6 feet, subsiding to 3 to 5 feet. Scattered showers and
thunderstorms, mainly in the evening.
.WEDNESDAY...East to southeast winds 15 to 20 knots, decreasing
to near 15 knots. Seas 3 to 5 feet. Isolated showers and
thunderstorms.
.WEDNESDAY NIGHT...East winds near 15 knots. Seas 3 to 5 feet.
Isolated showers and thunderstorms.
.THURSDAY...East winds 10 to 15 knots. Seas 3 to 4 feet, subsiding
to 2 to 3 feet. Isolated showers and thunderstorms.
.THURSDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet.
Isolated showers and thunderstorms.
.FRIDAY...East winds near 10 knots. Seas 1 to 3 feet. Isolated
showers and thunderstorms.
.FRIDAY NIGHT...East to southeast winds near 10 knots. Seas 1 to
2 feet. Isolated showers and thunderstorms.
.SATURDAY...East to southeast winds 5 to 10 knots. Seas 1 to
2 feet. Isolated showers and thunderstorms.
.SATURDAY NIGHT...East to southeast winds near 10 knots. Seas
1 to 2 feet. Isolated showers and thunderstorms.

$$

GMZ033-034-092030-
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-
1020 AM EDT Tue Aug 9 2022

...SMALL CRAFT SHOULD EXERCISE CAUTION...

.THIS AFTERNOON...East to southeast winds 15 to 20 knots. Seas 2
to 4 feet. Numerous showers and scattered thunderstorms.
.TONIGHT...East to southeast winds 15 to 20 knots, decreasing to
near 15 knots. Seas 2 to 4 feet. Scattered showers. Scattered
thunderstorms, mainly in the evening.
.WEDNESDAY AND WEDNESDAY NIGHT...East to southeast winds near 15
knots. Seas 2 to 3 feet. Isolated showers and thunderstorms.
.THURSDAY...East to southeast winds 10 to 15 knots, decreasing to
near 10 knots. Seas 1 to 3 feet. Isolated showers and
thunderstorms.
.THURSDAY NIGHT...East winds near 10 knots. Seas 1 to 2 feet.
Isolated showers and thunderstorms.
.FRIDAY...East winds near 10 knots, decreasing to 5 to 10 knots.
Seas 1 to 2 feet. Isolated showers and thunderstorms.
.FRIDAY NIGHT...East to southeast winds 5 to 10 knots. Seas
around 1 foot. Isolated showers and thunderstorms.
.SATURDAY...East to southeast winds 5 to 10 knots, decreasing to
near 5 knots. Seas 1 foot or less. Isolated showers and
thunderstorms.
.SATURDAY NIGHT...East to southeast winds 5 to 10 knots. Seas
around 1 foot. Isolated showers and thunderstorms.

$$


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