128
FZUS52 KKEY 122119
CWFKEY

Coastal Waters Forecast for the Florida Keys
National Weather Service Key West FL
419 PM EST Tue Nov 12 2024

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.

Wave Detail will include details about the period and direction
of origin for the highest energy waves. Long-period swells coming
from a different direction than the wind would be included in the
Wave Detail.

GMZ005-130330-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
419 PM EST Tue Nov 12 2024

.SYNOPSIS...A backdoor frontal boundary will blast through the
Keys late tonight, resulting in fresh to strong northeast to east
breezes through late Wednesday night. Breezes will modestly
slacken late in the work week, before yet another frontal passage
late Friday night or early Saturday. Northeast to east breezes
will then remain moderate to fresh throughout the weekend.

The Approximate Shoreward Edge of the Gulf Stream as of October 31...

11 NM South of Dry Tortugas Light...on Loggerhead Key.
 2 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
 2 NM South of Sand Key Light...off Key West.
14 NM South of Looe Key...off Big Pine Key.
15 NM South of Sombrero Key Light...off Marathon.
20 NM Southeast of Alligator Reef Light...off Islamorada.
18 NM Southeast of Molasses Reef Light...off Key Largo.
16 NM East of Carysfort Reef Light...off Ocean Reef.

Gulf Stream Information Courtesy of the National Weather Service
in Key West based on products from the Real Time Ocean Forecast
System.

$$

GMZ031-130330-
Florida Bay including Barnes Sound, Blackwater Sound, and
Buttonwood Sound-
419 PM EST Tue Nov 12 2024

...SMALL CRAFT SHOULD EXERCISE CAUTION FOR INCREASING WINDS...
...A SMALL CRAFT ADVISORY MAY BE REQUIRED LATER TONIGHT...

.TONIGHT...Northeast to east winds near 15 knots, increasing to
15 to 20 knots. Bay waters a moderate chop, becoming choppy.
Isolated showers.
.WEDNESDAY...Northeast to east winds near 20 knots, increasing to
20 to 25 knots in the afternoon. Bay waters rough, becoming very
rough in the afternoon. Isolated showers.
.WEDNESDAY NIGHT...Northeast to east winds 20 to 25 knots,
decreasing to near 20 knots. Bay waters very rough, becoming
rough. Isolated showers.
.THURSDAY...Northeast to east winds 15 to 20 knots, decreasing to
near 15 knots. Bay waters choppy, becoming a moderate chop.
Isolated showers.
.THURSDAY NIGHT...Northeast to east winds 10 to 15 knots,
decreasing to near 10 knots after midnight. Bay waters a light to
moderate chop, becoming a light chop. Isolated showers.
.FRIDAY...Northeast winds decreasing to 5 to 10 knots. Bay waters
becoming smooth to a light chop. Isolated showers.
.FRIDAY NIGHT...North to northeast winds near 10 knots,
increasing to northeast 10 to 15 knots. Bay waters a light chop,
becoming a light to moderate chop. Isolated showers.
.SATURDAY...Northeast winds near 15 knots. Bay waters a moderate
chop.
.SATURDAY NIGHT...Northeast winds 15 to 20 knots. Bay waters
choppy. Isolated showers.
.SUNDAY...Northeast winds near 15 knots. Bay waters a moderate
chop. Isolated showers.
.SUNDAY NIGHT...Northeast to east winds 15 to 20 knots. Bay
waters choppy. Isolated showers.

$$

GMZ032-035-130330-
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-
419 PM EST Tue Nov 12 2024

...SMALL CRAFT SHOULD EXERCISE CAUTION FOR INCREASING WINDS...
...A SMALL CRAFT ADVISORY MAY BE REQUIRED LATER TONIGHT...

.TONIGHT...Northeast to east winds near 15 knots, increasing to
15 to 20 knots. Seas 1 to 2 feet, building to 2 to 3 feet.
Nearshore waters a moderate chop, becoming choppy. Isolated
showers.
.WEDNESDAY...Northeast to east winds near 20 knots, increasing to 20
to 25 knots. Seas building to 3 to 4 feet, occasionally to 5
feet, except building to 4 to 5 feet, occasionally to 6 feet west
of the Marquesas Keys. Nearshore waters rough, becoming very
rough. Isolated showers.
.WEDNESDAY NIGHT...Northeast to east winds 20 to 25 knots,
decreasing to near 20 knots. Seas subsiding to 2 to 4 feet,
occasionally to 5 feet, except subsiding to 3 to 5 feet,
occasionally to 6 feet west of the Marquesas Keys. Nearshore
waters very rough, becoming rough. Isolated showers.
.THURSDAY...East winds 15 to 20 knots, decreasing to near 15 knots.
Seas 2 to 4 feet, occasionally to 5 feet, except 3 to 5 feet,
occasionally to 6 feet west of the Marquesas Keys. Nearshore
waters choppy, becoming a moderate chop.
.THURSDAY NIGHT...Northeast to east winds near 15 knots, decreasing
to near 10 knots. Seas subsiding to 1 to 2 feet. Nearshore waters
a moderate chop, becoming a light chop. Isolated showers.
.FRIDAY...Northeast winds 5 to 10 knots. Seas around 1 foot.
Nearshore waters smooth to a light chop. Isolated showers.
.FRIDAY NIGHT...North to northeast winds near 10 knots, increasing
to near 15 knots. Seas 1 to 2 feet, building to 2 to 3 feet. West
of the Marquesas Keys, seas 2 to 3 feet, building to 3 to 4 feet,
occasionally to 5 feet. Nearshore waters a light chop, becoming a
moderate chop. Isolated showers.
.SATURDAY...North to northeast winds 15 to 20 knots. Seas 2 to 3
feet, except 3 to 4 feet, occasionally to 5 feet west of the
Marquesas Keys. Nearshore waters choppy.
.SATURDAY NIGHT THROUGH SUNDAY NIGHT...Northeast winds 15 to 20
knots. Seas 2 to 3 feet, except 3 to 4 feet, occasionally to 5
feet west of the Marquesas Keys. Nearshore waters choppy. Isolated
showers.

$$

GMZ042>044-130330-
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-
419 PM EST Tue Nov 12 2024

...SMALL CRAFT SHOULD EXERCISE CAUTION FOR INCREASING WINDS...
...A SMALL CRAFT ADVISORY MAY BE REQUIRED LATER TONIGHT...

.TONIGHT...Northeast to east winds near 15 knots, increasing to
15 to 20 knots. Seas 2 to 4 feet, occasionally to 5 feet.
Nearshore waters a moderate chop, becoming choppy. Scattered
showers.
.WEDNESDAY...Northeast to east winds near 20 knots, increasing to
20 to 25 knots. Seas 3 to 5 feet, occasionally to 6 feet, building
to 4 to 6 feet, occasionally to 8 feet. Nearshore waters rough,
becoming very rough. Isolated showers.
.WEDNESDAY NIGHT...Northeast to east winds near 25 knots,
decreasing to near 20 knots. Seas 4 to 6 feet, occasionally to 8
feet. Nearshore waters extremely rough, becoming rough. Isolated
showers.
.THURSDAY...East winds 15 to 20 knots, decreasing to near 15 knots.
Seas subsiding to 3 to 5 feet, occasionally to 6 feet. Nearshore
waters choppy, becoming a moderate chop. Isolated showers.
.THURSDAY NIGHT...Northeast to east winds 10 to 15 knots. Seas
subsiding to 2 to 3 feet. Nearshore waters a light to moderate
chop. Isolated showers.
.FRIDAY...Northeast winds 10 to 15 knots, decreasing to near 10
knots. Seas 1 to 2 feet. Nearshore waters a light to moderate
chop, becoming a light chop. Isolated showers.
.FRIDAY NIGHT...North to northeast winds near 10 knots,
increasing to near 15 knots. Seas 1 to 3 feet. Nearshore waters a
light chop, becoming a moderate chop. Isolated showers.
.SATURDAY AND SATURDAY NIGHT...Northeast winds 15 to 20 knots.
Seas 2 to 3 feet, except 3 to 4 feet, occasionally to 5 feet west
of Cosgrove Shoal Light. Nearshore waters choppy.
.SUNDAY AND SUNDAY NIGHT...Northeast to east winds 15 to 20
knots. Seas 2 to 4 feet, occasionally to 5 feet. Nearshore waters
choppy. Isolated showers.

$$

GMZ052>055-072>075-130330-
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-
419 PM EST Tue Nov 12 2024

...SMALL CRAFT SHOULD EXERCISE CAUTION...
...A SMALL CRAFT ADVISORY MAY BE REQUIRED LATER TONIGHT...

.TONIGHT...Northeast to east winds 15 to 20 knots. Seas building
to 4 to 6 feet, occasionally to 8 feet. Wave Detail: Northeast to
east 6 feet at 6 seconds. Isolated showers.
.WEDNESDAY...Northeast to east winds near 20 knots, increasing to
near 25 knots. Seas 5 to 7 feet, occasionally to 9 feet, building
to 6 to 9 feet, occasionally to 11 feet. Wave
Detail: Northeast to east 8 feet at 7 seconds and west to
northwest 1 foot at 7 seconds. Isolated showers.
.WEDNESDAY NIGHT...Northeast to east winds near 25 knots,
decreasing to near 20 knots. Seas 7 to 10 feet, occasionally to
12 feet, subsiding to 6 to 8 feet, occasionally to 10 feet. Wave
Detail: Northeast to east 9 feet at 8 seconds. Isolated showers.
.THURSDAY...East winds 15 to 20 knots, decreasing to near 15 knots.
Seas 5 to 8 feet, occasionally to 9 feet,
subsiding to 4 to 6 feet, occasionally to 8 feet. Isolated showers.
.THURSDAY NIGHT...Northeast to east winds near 15 knots,
decreasing to 10 to 15 knots. Seas 3 to 5 feet, occasionally to 6
feet, subsiding to 2 to 4 feet, occasionally to 5 feet. Isolated
showers.
.FRIDAY...Northeast winds 10 to 15 knots. Seas 2 to 4 feet,
occasionally to 5 feet. Isolated showers.
.FRIDAY NIGHT...Northeast winds 10 to 15 knots, increasing to near
15 knots. Seas 2 to 3 feet. Isolated showers.
.SATURDAY...Northeast winds 15 to 20 knots. Seas 3 to 5 feet,
occasionally to 6 feet. Isolated showers.
.SATURDAY NIGHT...Northeast winds 15 to 20 knots. Seas 4 to
6 feet, occasionally to 8 feet. Isolated showers.
.SUNDAY...Northeast to east winds near 20 knots. Seas 5 to
6 feet, occasionally to 8 feet. Isolated showers.
.SUNDAY NIGHT...Northeast to east winds near 20 knots. Seas 5 to
7 feet, occasionally to 9 feet. Isolated showers.

$$

GMZ033-034-130330-
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-
419 PM EST Tue Nov 12 2024

...SMALL CRAFT SHOULD EXERCISE CAUTION FOR INCREASING WINDS...
...A SMALL CRAFT ADVISORY MAY BE REQUIRED LATER TONIGHT...

.TONIGHT...Northeast to east winds 10 to 15 knots, increasing to
15 to 20 knots after midnight. Seas 1 to 3 feet, building to 2 to
4 feet, occasionally to 5 feet. Wave Detail: Northeast to east 4
feet at 4 seconds and west 1 foot at 7 seconds. Isolated showers.
.WEDNESDAY...Northeast to east winds near 20 knots. Seas 3 to 5
feet, occasionally to 6 feet. Wave Detail: Northeast to east 4
feet at 4 seconds and west 1 foot at 7 seconds. Isolated showers.
.WEDNESDAY NIGHT...Northeast to east winds 20 to 25 knots,
decreasing to near 20 knots. Seas 4 to 6 feet, occasionally to 8
feet. Wave Detail: Northeast to east 6 feet at 6 seconds.
Isolated showers.
.THURSDAY...East winds 15 to 20 knots, becoming 10 to 15 knots in
the afternoon. Seas 3 to 5 feet, occasionally to 6 feet.
.THURSDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet.
Isolated showers.
.FRIDAY...North to northeast winds near 10 knots. Seas 1 to 2
feet. Isolated showers.
.FRIDAY NIGHT...North to northeast winds 10 to 15 knots,
increasing to near 15 knots. Seas 2 to 3 feet.
.SATURDAY AND SATURDAY NIGHT...Northeast winds 15 to 20 knots.
Seas 2 to 4 feet, occasionally to 5 feet.
.SUNDAY...Northeast to east winds 15 to 20 knots. Seas 2 to
4 feet, occasionally to 5 feet.
.SUNDAY NIGHT...Northeast to east winds 15 to 20 knots. Seas 3 to
5 feet, occasionally to 6 feet.

$$

JAM