Coastal Waters Forecast
Issued by NWS

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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.

$$



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