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000
FZUS52 KKEY 230218
CWFKEY

Coastal Waters Forecast for the Florida Keys
National Weather Service Key West FL
1018 PM EDT Fri Sep 22 2023

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.

GMZ005-230900-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
1018 PM EDT Fri Sep 22 2023

.SYNOPSIS...Tropical Storm Ophelia will approach the coast of
North Carolina overnight, then continue into the Delmarva
Peninsula Saturday and Sunday. Meanwhile, a weak and disorganized
trough axis will develop near and west of the Florida Keys.
Breezes will be gentle to moderate at times through Sunday night,
accompanied by unsettled weather featuring thundery squalls and
locally heavy rainfall. Near to above normal rain and thunder
chances will continue into next week with light to gentle easterly
breezes.

The Approximate Shoreward Edge of the Gulf Stream as of
September 21...

60 NM South of Dry Tortugas Light...on Loggerhead Key.
39 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
33 NM South of Sand Key Light...off Key West.
26 NM South of Looe Key...off Big Pine Key.
21 NM South of Sombrero Key Light...off Marathon.
38 NM Southeast of Alligator Reef Light...off Islamorada.

Gulf Stream Information Courtesy of the Naval Oceanographic Office.

$$

GMZ031-230900-
Florida Bay including Barnes Sound, Blackwater Sound, and
Buttonwood Sound-
1018 PM EDT Fri Sep 22 2023

.OVERNIGHT...Northeast to east winds near 10 knots. Bay waters a
light chop. Winds higher and bay waters rough near numerous
showers and scattered thunderstorms.
.SATURDAY...Northeast to east winds near 10 knots. Bay waters a
light chop. Numerous showers and scattered thunderstorms.
.SATURDAY NIGHT...East winds 10 to 15 knots. Bay waters a light
to moderate chop. Numerous showers and scattered thunderstorms.
.SUNDAY...East to southeast winds near 10 knots. Bay waters a
light chop. Numerous showers and scattered thunderstorms.
.SUNDAY NIGHT...East to southeast winds near 10 knots. Bay waters
a light chop. Scattered showers and thunderstorms.
.MONDAY...Southeast winds 5 to 10 knots. Bay waters smooth to a
light chop. Scattered showers and thunderstorms.
.MONDAY NIGHT...East to southeast winds 5 to 10 knots. Bay waters
smooth to a light chop. Scattered showers and thunderstorms.
.TUESDAY...East winds 5 to 10 knots. Bay waters smooth to a light
chop. Scattered showers and thunderstorms.
.TUESDAY NIGHT...East winds near 10 knots. Bay waters a light
chop. Scattered showers and thunderstorms.
.WEDNESDAY...Northeast to east winds 5 to 10 knots. Bay waters
smooth to a light chop. Scattered showers and thunderstorms.
.WEDNESDAY NIGHT...Northeast to east winds near 10 knots. Bay
waters a light chop. Scattered showers and thunderstorms.

$$

GMZ032-035-230900-
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-
1018 PM EDT Fri Sep 22 2023

.OVERNIGHT...Northeast to east winds near 10 knots. Seas building
to 1 to 2 feet. Nearshore waters a light chop. Winds and seas
higher near numerous showers and scattered thunderstorms.
.SATURDAY...Northeast to east winds near 10 knots. Seas 1 to 2
feet. Nearshore waters a light chop. Numerous showers and
scattered thunderstorms.
.SATURDAY NIGHT...East winds 10 to 15 knots. Seas around 2 feet.
Nearshore waters a light to moderate chop. Numerous showers and
scattered thunderstorms.
.SUNDAY...East to southeast winds near 10 knots. Seas 1 to 2 feet,
subsiding to around 1 foot. Nearshore waters a light chop.
Numerous showers and scattered thunderstorms.
.SUNDAY NIGHT...East to southeast winds near 10 knots. Seas
around 1 foot. Nearshore waters a light chop. Scattered showers
and thunderstorms.
.MONDAY...Southeast winds 5 to 10 knots. Seas 1 foot or less.
Nearshore waters smooth to a light chop. Scattered showers and
thunderstorms.
.MONDAY NIGHT...East to southeast winds 5 to 10 knots. Seas
1 foot or less. Nearshore waters smooth to a light chop.
Scattered showers and thunderstorms.
.TUESDAY...East winds 5 to 10 knots. Seas 1 foot or less.
Nearshore waters smooth to a light chop. Scattered showers and
thunderstorms.
.TUESDAY NIGHT...East winds near 10 knots. Seas around 1 foot.
Nearshore waters a light chop. Scattered showers and
thunderstorms.
.WEDNESDAY...Northeast to east winds 5 to 10 knots. Seas 1 foot
or less. Nearshore waters smooth to a light chop. Scattered
showers and thunderstorms.
.WEDNESDAY NIGHT...Northeast to east winds near 10 knots. Seas
around 1 foot. Nearshore waters a light chop. Scattered showers
and thunderstorms.

$$

GMZ042>044-230900-
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-
1018 PM EDT Fri Sep 22 2023

.OVERNIGHT...Northeast to east winds near 10 knots. Seas 1 to 2
feet. Nearshore waters a light chop. Winds and seas higher near
numerous showers and scattered thunderstorms.
.SATURDAY...East winds near 10 knots. Seas 1 to 2 feet. Nearshore
waters a light chop. Numerous showers and scattered
thunderstorms.
.SATURDAY NIGHT...East winds 10 to 15 knots. Seas 1 to 3 feet.
Nearshore waters a light to moderate chop. Numerous showers and
scattered thunderstorms.
.SUNDAY...East to southeast winds near 10 knots. Seas 1 to 2
feet. Nearshore waters a light chop. Numerous showers and
scattered thunderstorms.
.SUNDAY NIGHT...East to southeast winds near 10 knots. Seas
1 to 2 feet. Nearshore waters a light chop. Scattered showers and
thunderstorms.
.MONDAY...Southeast winds 5 to 10 knots. Seas around 1 foot.
Nearshore waters smooth to a light chop. Scattered showers and
thunderstorms.
.MONDAY NIGHT...East to southeast winds near 10 knots. Seas
1 to 2 feet. Nearshore waters a light chop. Scattered showers and
thunderstorms.
.TUESDAY...East winds 5 to 10 knots. Seas around 1 foot.
Nearshore waters smooth to a light chop. Scattered showers and
thunderstorms.
.TUESDAY NIGHT...East winds near 10 knots. Seas 1 to 2 feet.
Nearshore waters a light chop. Scattered showers and
thunderstorms.
.WEDNESDAY...Northeast to east winds 5 to 10 knots. Seas around
1 foot. Nearshore waters smooth to a light chop. Scattered
showers and thunderstorms.
.WEDNESDAY NIGHT...Northeast to east winds near 10 knots. Seas
1 to 2 feet. Nearshore waters a light chop. Scattered showers and
thunderstorms.

$$

GMZ052>055-072>075-230900-
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-
1018 PM EDT Fri Sep 22 2023

.OVERNIGHT...Northeast to east winds near 10 knots. Seas 1 to 2
feet, building to around 2 feet. Winds and seas higher near
numerous showers and scattered thunderstorms.
.SATURDAY...East winds near 10 knots. Seas around 2 feet, except
2 to 3 feet due to north swell southeast of the Upper Keys.
Numerous showers and scattered thunderstorms.
.SATURDAY NIGHT...East to southeast winds 10 to 15 knots. Seas
2 to 3 feet, except 3 to 4 feet due to north swell southeast of
the Upper Keys. Numerous showers and scattered thunderstorms.
.SUNDAY...East to southeast winds near 10 knots. Seas around 2
feet. Numerous showers and scattered thunderstorms.
.SUNDAY NIGHT...East to southeast winds near 10 knots. Seas
around 2 feet. Scattered showers and thunderstorms.
.MONDAY...Southeast winds 5 to 10 knots. Seas 1 to 2 feet.
Scattered showers and thunderstorms.
.MONDAY NIGHT...East to southeast winds near 10 knots. Seas
around 2 feet. Scattered showers and thunderstorms.
.TUESDAY...East winds 5 to 10 knots. Seas 1 to 2 feet. Scattered
showers and thunderstorms.
.TUESDAY NIGHT...East winds near 10 knots. Seas around 2 feet.
Scattered showers and thunderstorms.
.WEDNESDAY...Northeast to east winds 5 to 10 knots. Seas 1 to 2
feet. Scattered showers and thunderstorms.
.WEDNESDAY NIGHT...East winds near 10 knots. Seas around 2 feet.
Scattered showers and thunderstorms.

$$

GMZ033-034-230900-
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-
1018 PM EDT Fri Sep 22 2023

.OVERNIGHT...Northeast winds 5 to 10 knots, becoming northeast to
east and increasing to 10 to 15 knots. Seas around 1 foot,
building to 2 to 3 feet. Winds and seas higher near numerous
showers and scattered thunderstorms.
.SATURDAY AND SATURDAY NIGHT...East winds 10 to 15 knots. Seas 2
to 3 feet. Numerous showers and scattered thunderstorms.
.SUNDAY...East winds 10 to 15 knots, decreasing to near 10 knots
in the afternoon. Seas 1 to 3 feet, subsiding to 1 to 2 feet.
Numerous showers and scattered thunderstorms.
.SUNDAY NIGHT...East to southeast winds 10 to 15 knots. Seas
1 to 3 feet. Numerous showers and scattered thunderstorms.
.MONDAY...Southeast winds near 10 knots. Seas 1 to 2 feet.
Scattered showers and thunderstorms.
.MONDAY NIGHT...East to southeast winds 5 to 10 knots. Seas
around 1 foot. Scattered showers and thunderstorms.
.TUESDAY...East winds 5 to 10 knots. Seas around 1 foot.
Scattered showers and thunderstorms.
.TUESDAY NIGHT...East to southeast winds 5 to 10 knots. Seas
around 1 foot. Scattered showers and thunderstorms.
.WEDNESDAY...East winds 5 to 10 knots. Seas around 1 foot.
Scattered showers and thunderstorms.
.WEDNESDAY NIGHT...Northeast to east winds near 10 knots. Seas 1
to 2 feet. Scattered showers and thunderstorms.

$$