Coastal Waters Forecast
Issued by NWS

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FZUS52 KKEY 200952
CWFKEY

Coastal Waters Forecast for the Florida Keys
National Weather Service Key West FL
452 AM EST Sat Jan 20 2018

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.

GMZ005-201530-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
452 AM EST Sat Jan 20 2018

.SYNOPSIS...An area of high pressure over the Southeastern United
States will slide into the Southwest Atlantic Ocean today. An
Atlantic ridge of high pressure will extend across the
Southeastern United States Saturday night through Sunday night,
before shifting southward down the Florida peninsula Monday.

The Approximate Shoreward Edge of the Gulf Stream current, as of
January 19th, 2018...

45 NM South of Dry Tortugas Light, on Loggerhead Key.
33 NM South of Cosgrove Shoal Light, off the Marquesas Keys.
30 NM South of Sand Key Light, off Key West.
28 NM South of Looe Key, off Big Pine Key.
22 NM South of Sombrero Key Light, off Marathon.
13 NM Southeast of Alligator Reef Light, off Islamorada.
 7 NM Southeast of Molasses Reef Light, off Key Largo.
 7 NM East of Carysfort Reef Light, off Ocean Reef.

Gulf Stream Information Courtesy of the Naval Oceanographic
Office.

$$

GMZ031-201530-
Florida Bay including Barnes Sound, Blackwater Sound, and
Buttonwood Sound-
452 AM EST Sat Jan 20 2018

.TODAY...Northeast to east winds 10 to 15 knots. Bay waters a
light to moderate chop. Isolated showers.
.TONIGHT...Northeast to east winds 10 to 15 knots. Bay waters a
light to moderate chop. Isolated showers.
.SUNDAY...East winds near 15 knots. Bay waters a moderate chop.
Scattered showers.
.SUNDAY NIGHT...East winds 10 to 15 knots. Bay waters a light to
moderate chop. Isolated showers.
.MONDAY...East winds 10 to 15 knots. Bay waters a light to
moderate chop. Isolated showers.
.MONDAY NIGHT...East to southeast winds near 10 knots. Bay waters
smooth to a light chop. Isolated showers.
.TUESDAY...Northeast to east winds near 10 knots. Bay waters a
light chop. Scattered showers.
.TUESDAY NIGHT...Northeast winds near 10 knots. Bay waters a
light chop. Isolated showers.
.WEDNESDAY...Northeast winds 10 to 15 knots. Bay waters a light
to moderate chop. Isolated showers.
.WEDNESDAY NIGHT...Northeast winds near 15 knots. Bay waters
a moderate chop. Isolated showers.

$$

GMZ032-035-201530-
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-
452 AM EST Sat Jan 20 2018

.TODAY...Northeast to east winds near 15 knots. Seas 1 to 2 feet.
Nearshore waters a moderate chop. Isolated showers.
.TONIGHT...Northeast to east winds near 15 knots. Seas 1 to 2
feet. Nearshore waters a moderate chop. Isolated showers.
.SUNDAY...East winds 15 to 20 knots. Seas 1 to 3 feet. Nearshore
waters choppy. Scattered showers.
.SUNDAY NIGHT AND MONDAY...East winds 10 to 15 knots. Seas 1 to 2
feet. Nearshore waters a light to moderate chop. Isolated
showers.
.MONDAY NIGHT...East to southeast winds 10 to 15 knots. Seas
1 to 2 feet. Nearshore waters a light to moderate chop. Isolated
showers.
.TUESDAY...Northeast to east winds near 10 knots. Seas around 1
foot. Nearshore waters a light chop. Scattered showers.
.TUESDAY NIGHT...Northeast winds 10 to 15 knots. Seas 1 to
2 feet. Nearshore waters a light to moderate chop. Isolated
showers.
.WEDNESDAY...Northeast winds 10 to 15 knots. Seas 1 to 2 feet.
Nearshore waters a light to moderate chop. Isolated showers.
.WEDNESDAY NIGHT...Northeast winds 15 to 20 knots. Seas 1 to
3 feet. Nearshore waters choppy. Isolated showers.

$$

GMZ042>044-201530-
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-
452 AM EST Sat Jan 20 2018

.TODAY...Northeast to east winds near 15 knots. Seas 2 to 3 feet.
Nearshore waters a moderate chop. Isolated showers.
.TONIGHT...Northeast to east winds 15 to 20 knots. Seas 2 to
4 feet. Nearshore waters choppy. Isolated showers.
.SUNDAY...East winds near 20 knots. Seas 2 to 4 feet. Nearshore
waters rough. Scattered showers.
.SUNDAY NIGHT...East winds 15 to 20 knots. Seas 2 to 4 feet.
Nearshore waters choppy. Isolated showers.
.MONDAY...East winds near 15 knots. Seas 2 to 4 feet. Nearshore
waters a light to moderate chop. Isolated showers.
.MONDAY NIGHT...East to southeast winds 10 to 15 knots. Seas 2 to
3 feet. Nearshore waters a light to moderate chop. Isolated
showers.
.TUESDAY...Northeast to east winds near 10 knots. Seas 1 to
2 feet. Nearshore waters a light chop. Scattered showers.
.TUESDAY NIGHT...Northeast winds 10 to 15 knots. Seas 1 to
2 feet. Nearshore waters a light to moderate chop. Isolated
showers.
.WEDNESDAY...Northeast winds near 15 knots. Seas 1 to 3 feet.
Nearshore waters a moderate chop. Isolated showers.
.WEDNESDAY NIGHT...Northeast winds 15 to 20 knots. Seas 2 to
4 feet. Nearshore waters choppy. Isolated showers.

$$

GMZ052>055-072>075-201530-
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-
452 AM EST Sat Jan 20 2018

.TODAY...Northeast to east winds near 15 knots. Seas 3 to 5 feet.
Isolated showers.
.TONIGHT...Northeast to east winds 15 to 20 knots, increasing to
near 20 knots late. Seas building to 4 to 6 feet. Scattered
showers.
.SUNDAY...East winds near 20 knots. Seas 5 to 7 feet. Scattered
showers.
.SUNDAY NIGHT...East winds 15 to 20 knots. Seas 4 to 7 feet.
Scattered showers.
.MONDAY...East winds 15 to 20 knots. Seas 4 to 6 feet. Isolated
showers.
.MONDAY NIGHT...East to southeast winds 10 to 15 knots. Seas 3 to
5 feet. Isolated showers.
.TUESDAY...Northeast to east winds 10 to 15 knots. Seas 2 to
3 feet. Scattered showers.
.TUESDAY NIGHT...Northeast winds 15 to 20 knots. Seas 2 to 4
feet. Isolated showers.
.WEDNESDAY...Northeast winds 15 to 20 knots. Seas 3 to 5 feet
building to 4 to 6 feet in the afternoon. Isolated showers.
.WEDNESDAY NIGHT...Northeast winds near 20 knots. Seas 5 to
8 feet. Isolated showers.

$$

GMZ033-034-201530-
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-
452 AM EST Sat Jan 20 2018

.TODAY...Northeast to east winds near 15 knots. Seas 1 to 3 feet.
Isolated showers.
.TONIGHT...Northeast to east winds 15 to 20 knots. Seas 2 to
3 feet. Isolated showers.
.SUNDAY...Northeast to east winds 15 to 20 knots. Seas 2 to 4
feet. Isolated showers.
.SUNDAY NIGHT...East winds near 15 knots. Seas 2 to 3 feet.
Isolated showers.
.MONDAY...East winds 10 to 15 knots. Seas 1 to 3 feet. Isolated
showers.
.MONDAY NIGHT...East to southeast winds 10 to 15 knots. Seas 1 to
3 feet. Isolated showers.
.TUESDAY...Northeast winds near 10 knots. Seas 1 to 2 feet.
Scattered showers.
.TUESDAY NIGHT...Northeast winds near 15 knots. Seas 1 to 3 feet.
Isolated showers.
.WEDNESDAY...Northeast winds near 15 knots. Seas 2 to 3 feet.
Isolated showers.
.WEDNESDAY NIGHT...Northeast winds 15 to 20 knots. Seas 3 to
5 feet. Isolated showers.

$$

MCLOVIN


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