Coastal Waters Forecast
Issued by NWS

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FZUS52 KKEY 162124
CWFKEY

Coastal Waters Forecast for the Florida Keys
National Weather Service Key West FL
424 PM EST Sat Dec 16 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.

GMZ005-170330-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
424 PM EST Sat Dec 16 2017

.SYNOPSIS...High surface pressure will build across the
Southeastern United States and Western Atlantic through Sunday
night. This high pressure will slide southward Monday through
Tuesday, weakening across South Florida for the second half of the
week.

The Approximate Shoreward Edge of the Gulf Stream current, as of
December Sixteenth, 2017,

30 NM South of Dry Tortugas Light...on Loggerhead Key.
17 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
26 NM South of Sand Key Light...off Key West.
32 NM South of Looe Key...off Big Pine Key.
29 NM South of Sombrero Key Light...off Marathon.
14 NM Southeast of Alligator Reef Light...off Islamorada.
 9 NM Southeast of Molasses Reef Light...off Key Largo.
 6 NM East of Carysfort Reef Light...off Ocean Reef.

Gulf Stream Information Courtesy of the Naval Oceanographic Office.

$$

GMZ031-170330-
Florida Bay including Barnes Sound, Blackwater Sound, and
Buttonwood Sound-
424 PM EST Sat Dec 16 2017

.TONIGHT...Northeast to east winds near 15 knots. Bay waters a
moderate chop.
.SUNDAY AND SUNDAY NIGHT...East winds near 15 knots. Bay waters a
moderate chop. Isolated showers.
.MONDAY AND MONDAY NIGHT...East winds 10 to 15 knots. Bay waters
a light to moderate chop. Isolated showers.
.TUESDAY...East winds near 10 knots. Bay waters a light chop.
Isolated showers.
.TUESDAY NIGHT...East to southeast winds 5 to 10 knots. Bay
waters smooth to a light chop. Isolated showers.
.WEDNESDAY THROUGH THURSDAY NIGHT...Southeast winds 5 to 10
knots. Bay waters smooth to a light chop. Isolated showers.

$$

GMZ032-035-170330-
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-
424 PM EST Sat Dec 16 2017

...SMALL CRAFT SHOULD EXERCISE CAUTION FOR INCREASING WINDS...

.TONIGHT...Northeast to east winds near 15 knots, increasing to 15
to 20 knots. Seas 1 to 3 feet. Nearshore waters a moderate chop,
becoming choppy.
.SUNDAY AND SUNDAY NIGHT...East winds near 15 knots. Seas 1 to 3
feet. Nearshore waters choppy. Isolated showers.
.MONDAY AND MONDAY NIGHT...East winds 10 to 15 knots. Seas around
1 foot. Nearshore waters a light to moderate chop. Isolated
showers.
.TUESDAY...East winds near 10 knots. Seas 1 foot or less.
Nearshore waters a light chop. Isolated showers.
.TUESDAY NIGHT...East to southeast winds 5 to 10 knots. Seas 1
foot or less. Nearshore waters smooth to a light chop. Isolated
showers.
.WEDNESDAY THROUGH THURSDAY NIGHT...Southeast winds 5 to 10
knots. Seas 1 foot or less. Nearshore waters smooth to a light
chop. Isolated showers.

$$

GMZ042>044-170330-
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-
424 PM EST Sat Dec 16 2017

...SMALL CRAFT ADVISORY IN EFFECT...

.TONIGHT...Northeast to east winds 15 to 20 knots, increasing to
near 20 knots. Seas 2 to 4 feet. Nearshore waters choppy.
.SUNDAY AND SUNDAY NIGHT...East winds 15 to 20 knots. Seas 2 to 4
feet. Nearshore waters choppy. Isolated showers.
.MONDAY AND MONDAY NIGHT...East winds near 15 knots. Seas 2 to 3
feet. Nearshore waters a moderate chop. Isolated showers.
.TUESDAY...East winds 10 to 15 knots. Seas 1 to 3 feet. Nearshore
waters a light to moderate chop. Isolated showers.
.TUESDAY NIGHT...East to southeast winds near 10 knots. Seas 1 to
2 feet. Nearshore waters a light chop. Isolated showers.
.WEDNESDAY THROUGH THURSDAY NIGHT. Southeast winds 5 to 10 knots.
Seas around 1 foot. Nearshore waters smooth to a light chop.
Isolated showers.

$$

GMZ052>055-072>075-170330-
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-
424 PM EST Sat Dec 16 2017

...SMALL CRAFT ADVISORY IN EFFECT...

.TONIGHT...Northeast to east winds 15 to 20 knots, increasing to
near 20 knots. Seas 3 to 6 feet, building to 4 to 7 feet.
Isolated showers.
.SUNDAY AND SUNDAY NIGHT...East winds near 20 knots. Seas 5 to 8
feet. Isolated showers.
.MONDAY AND MONDAY NIGHT...East winds 15 to 20 knots. Seas 4 to 6
feet. Isolated showers.
.TUESDAY...East winds decreasing to 10 to 15 knots. Seas subsiding
to 2 to 4 feet. Isolated showers.
.TUESDAY NIGHT...East to southeast winds 10 to 15 knots. Seas 2
to 4 feet. Isolated showers.
.WEDNESDAY THROUGH THURSDAY NIGHT...Southeast winds 5 to 10
knots. Seas 1 to 3 feet. Isolated showers.

$$

GMZ033-034-170330-
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-
424 PM EST Sat Dec 16 2017

...SMALL CRAFT ADVISORY IN EFFECT...

.TONIGHT...Northeast to east winds near 15 knots, increasing to
near 20 knots. Seas 2 to 3 feet building to 3 to 5 feet.
.SUNDAY AND SUNDAY NIGHT...East winds 15 to 20 knots. Seas 3 to 6
feet. Isolated showers.
.MONDAY AND MONDAY NIGHT...East winds decreasing to 10 to 15
knots. Seas subsiding to 2 to 4 feet. Isolated showers.
.TUESDAY...East winds near 10 knots. Seas 1 to 3 feet. Isolated
showers.
.TUESDAY NIGHT...East to southeast winds 5 to 10 knots. Seas 1 to
2 feet. Isolated showers.
.WEDNESDAY THROUGH THURSDAY NIGHT...Southeast winds 5 to 10
knots. Seas around 1 foot. Isolated showers.

$$

Futterman



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