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National Weather Service Marine Forecast FZUS52 KKEY

FZUS52 KKEY 201930
CWFKEY

Coastal Waters Forecast for the Florida Keys
National Weather Service Key West FL
Issued by National Weather Service MELBOURNE FL
330 PM EDT Wed Sep 20 2017

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.

GMZ005-210300-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
330 PM EDT Wed Sep 20 2017

SYNOPSIS
Relatively dry air with light winds over the area
will persist through tonight. Northeast winds and a more
unsettled weather pattern will develop beginning Thursday and
persist through the weekend.



GMZ031-210300-
Florida Bay including Barnes Sound, Blackwater Sound, and
Buttonwood Sound-
330 PM EDT Wed Sep 20 2017

TONIGHT
South to southwest winds near 5 knots becoming north
to northeast in the late evening and overnight. Bay waters
smooth.

THURSDAY
Northeast winds near 5 knots becoming east to
southeast in the afternoon. Bay waters smooth to a light chop.
Slight chance of showers and thunderstorms in the afternoon.

THURSDAY NIGHT
Northeast winds 5 to 10 knots. Bay waters
smooth to a light chop. Chance of showers and thunderstorms.

FRIDAY
Northeast to east winds near 5 knots. Bay waters
smooth. Chance of showers and thunderstorms.

FRIDAY NIGHT
East winds 5 to 10 knots. Bay waters smooth to a
light chop. Chance of showers and thunderstorms.

SATURDAY
Northeast winds 5 to 10 knots. Bay waters smooth to a
light chop. Chance of showers and thunderstorms.

SATURDAY NIGHT
North to northeast winds near 10 knots. Bay
waters a light chop. Chance of showers and thunderstorms.

SUNDAY
North winds near 10 knots becoming northwest late in
the morning, then becoming variable less than 5 knots early in
the afternoon becoming northeast to east near 5 knots late in the
afternoon. Bay waters smooth to a light chop. Chance of showers
and thunderstorms.

SUNDAY NIGHT
Northeast to east winds 5 to 10 knots. Bay waters
smooth to a light chop. Chance of showers and thunderstorms.

MONDAY
Northeast winds 5 to 10 knots becoming southeast in the
afternoon. Bay waters smooth to a light chop. Chance of showers
and thunderstorms.

MONDAY NIGHT
Wind variable less than 5 knots becoming
northeast near 5 knots early in the morning. Bay waters smooth.
Isolated showers.



GMZ032-035-210300-
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-
330 PM EDT Wed Sep 20 2017

TONIGHT
West to northwest winds near 5 knots becoming
northeast to east in the late evening and overnight. Seas less
than 1 foot. Nearshore waters smooth.

THURSDAY
Northeast to east winds near 5 knots becoming
northwest late in the afternoon. Seas less than 1 foot. Nearshore
waters smooth. Slight chance of showers and thunderstorms in the
afternoon.

THURSDAY NIGHT
North winds near 5 knots becoming northeast to
east in the late evening and overnight. Seas 1 foot or less.
Nearshore waters smooth. Slight chance of showers and
thunderstorms.

FRIDAY
North to northeast winds 5 to 10 knots. Seas 1 foot or
less. Nearshore waters smooth to a light chop. Chance of showers
and thunderstorms.

FRIDAY NIGHT
Northeast to east winds 5 to 10 knots. Seas
1 foot or less. Nearshore waters smooth to a light chop. Chance
of showers and thunderstorms.

SATURDAY
North to northeast winds 5 to 10 knots. Seas 1 foot
or less. Nearshore waters smooth to a light chop. Chance of
showers and thunderstorms.

SATURDAY NIGHT
Northeast winds 5 to 10 knots. Seas 1 foot or
less. Nearshore waters smooth to a light chop. Chance of showers
and thunderstorms.

SUNDAY
North to northeast winds 5 to 10 knots. Seas 1 foot or
less. Nearshore waters smooth to a light chop. Chance of showers
and thunderstorms.

SUNDAY NIGHT
East winds 5 to 10 knots. Seas less than 1 foot.
Nearshore waters smooth to a light chop. Slight chance of showers
and thunderstorms.

MONDAY
Southeast winds 5 to 10 knots. Seas less than 1 foot.
Nearshore waters smooth to a light chop. Chance of showers and
thunderstorms.

MONDAY NIGHT
Northeast to east winds near 5 knots. Seas less
than 1 foot. Nearshore waters smooth. Isolated showers.



GMZ033-034-210300-
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-
330 PM EDT Wed Sep 20 2017

TONIGHT
North winds near 5 knots becoming east after midnight.
Seas 1 foot or less.

THURSDAY
East winds near 5 knots becoming north late in the
afternoon. Seas less than 1 foot building to 1 foot or less in
the afternoon.

THURSDAY NIGHT
North to northeast winds 5 to 10 knots becoming
east after midnight. Seas 1 foot or less. Slight chance of
showers.

FRIDAY
North to northeast winds 5 to 10 knots. Seas 1 foot or
less. Chance of showers and thunderstorms.

FRIDAY NIGHT
Northeast winds 10 to 15 knots becoming east 5 to
10 knots after midnight. Seas 1 foot or less. Chance of showers
and thunderstorms.

SATURDAY
North to northeast winds 5 to 10 knots. Seas 1 to
2 feet. Chance of showers and thunderstorms.

SATURDAY NIGHT
Northeast to east winds 10 to 15 knots. Seas
1 to 2 feet. Chance of showers and thunderstorms.

SUNDAY
Northeast winds 5 to 10 knots. Seas 1 foot or less.
Chance of showers and thunderstorms.

SUNDAY NIGHT
East winds 5 to 10 knots. Seas 1 foot or less.
Slight chance of showers and thunderstorms.

MONDAY
East to southeast winds 5 to 10 knots. Seas 1 foot or
less. Chance of showers and thunderstorms.

MONDAY NIGHT
East winds near 5 knots. Seas 1 foot or less.
Isolated showers.



GMZ042>044-210300-
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-
330 PM EDT Wed Sep 20 2017

TONIGHT
Northeast winds near 5 knots. Seas 1 foot or less.
Nearshore waters smooth.

THURSDAY
Northeast winds 5 to 10 knots. Seas 1 foot or less.
Nearshore waters smooth to a light chop. Slight chance of showers
and thunderstorms in the afternoon.

THURSDAY NIGHT
Northeast to east winds 5 to 10 knots. Seas
1 foot or less. Nearshore waters smooth to a light chop. Chance
of thunderstorms and slight chance of showers.

FRIDAY
Northeast winds 5 to 10 knots. Seas 1 foot or less.
Nearshore waters smooth to a light chop. Chance of showers and
thunderstorms.

FRIDAY NIGHT
East winds 10 to 15 knots. Seas 1 foot or less.
Nearshore waters a light to moderate chop. Chance of showers and
thunderstorms.

SATURDAY
Northeast winds 5 to 10 knots. Seas 1 to 2 feet.
Nearshore waters smooth to a light chop. Chance of showers and
thunderstorms.

SATURDAY NIGHT
Northeast winds 10 to 15 knots. Seas 1 to
2 feet. Nearshore waters a light to moderate chop. Chance of
showers and thunderstorms.

SUNDAY
Northeast winds 5 to 10 knots. Seas 1 foot or less.
Nearshore waters smooth to a light chop. Chance of showers and
thunderstorms.

SUNDAY NIGHT
East winds 5 to 10 knots. Seas 1 foot or less.
Nearshore waters smooth to a light chop. Slight chance of showers
and thunderstorms.

MONDAY
East winds 5 to 10 knots. Seas 1 foot or less.
Nearshore waters smooth to a light chop. Chance of showers and
thunderstorms.

MONDAY NIGHT
East winds near 5 knots. Seas 1 foot or less.
Nearshore waters smooth. Isolated showers.



GMZ052-053-072-073-210300-
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-
330 PM EDT Wed Sep 20 2017

TONIGHT
Northeast to east winds 5 to 10 knots. Seas 1 to
2 feet. Isolated showers.

THURSDAY
Northeast winds 5 to 10 knots. Seas 1 to 3 feet.

THURSDAY NIGHT
Northeast to east winds 10 to 15 knots. Seas
2 to 3 feet. Chance of showers and thunderstorms.

FRIDAY
Northeast to east winds near 10 knots. Seas 1 to
3 feet. Chance of showers and thunderstorms.

FRIDAY NIGHT
East winds 10 to 15 knots. Seas 2 to 3 feet.
Chance of showers and thunderstorms.

SATURDAY
East winds near 10 knots becoming northeast in the
afternoon. Seas 2 to 4 feet. Chance of showers and thunderstorms.

SATURDAY NIGHT
North to northeast winds 10 to 15 knots. Seas
2 to 4 feet. Chance of showers and thunderstorms.

SUNDAY
North to northeast winds 5 to 10 knots. Seas 2 to
3 feet. Chance of showers and thunderstorms.

SUNDAY NIGHT
East winds 5 to 10 knots. Seas 2 to 3 feet.
Slight chance of showers and thunderstorms.

MONDAY
East to southeast winds near 5 knots. Seas 2 to 3 feet.
Chance of showers and thunderstorms.

MONDAY NIGHT
East winds near 5 knots. Seas 2 to 3 feet.
Isolated showers and thunderstorms.



GMZ054-055-074-075-210300-
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-
330 PM EDT Wed Sep 20 2017

TONIGHT
Northeast to east winds 5 to 10 knots. Seas 1 foot or
less. Isolated showers.

THURSDAY
Northeast winds 5 to 10 knots. Seas 1 foot or less.

THURSDAY NIGHT
Northeast to east winds 5 to 10 knots. Seas
1 foot or less. Slight chance of showers.

FRIDAY
Northeast winds 5 to 10 knots. Seas 1 to 2 feet. Slight
chance of showers and thunderstorms.

FRIDAY NIGHT
Northeast to east winds 10 to 15 knots. Seas 1 to
2 feet. Chance of showers and thunderstorms.

SATURDAY
Northeast winds 5 to 10 knots. Seas 1 to 2 feet.
Chance of showers and thunderstorms.

SATURDAY NIGHT
Northeast to east winds 5 to 10 knots. Seas
1 to 3 feet. Chance of showers and thunderstorms.

SUNDAY
Northeast winds near 5 knots. Seas 1 to 3 feet. Chance
of showers and thunderstorms.

SUNDAY NIGHT
East to southeast winds 5 to 10 knots. Seas
1 foot or less. Slight chance of showers and thunderstorms.

MONDAY
Southeast winds near 5 knots. Seas 1 foot or less.
Chance of showers and thunderstorms.

MONDAY NIGHT
East to southeast winds 5 to 10 knots. Seas
1 foot or less. Isolated showers and thunderstorms.