Coastal Waters Forecast
Issued by NWS Key West, FL

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947
FZUS52 KKEY 232121
CWFKEY

Coastal Waters Forecast for the Florida Keys
National Weather Service Key West FL
421 PM EST Sat Nov 23 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.

GMZ005-240400-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
421 PM EST Sat Nov 23 2024

.SYNOPSIS...North to northeast breezes have slackened this
afternoon, and gentle to occasionally moderate breezes will
prevail through the weekend. Breezes will gradually veer to the
northeast to east through midweek as a broad high pressure system
becomes established over the southeastern United States. Dry
weather will persist across the Florida Keys waters through Monday
with a possibility of isolated showers, mainly over the Florida
Straits, on Tuesday.

The Approximate Shoreward Edge of the Gulf Stream as of November
22...

23 NM South of Dry Tortugas Light...on Loggerhead Key.
12 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
 3 NM South of Sand Key Light...off Key West.
 8 NM South of Looe Key...off Big Pine Key.
 9 NM South of Sombrero Key Light...off Marathon.
14 NM Southeast of Alligator Reef Light...off Islamorada.
15 NM Southeast of Molasses Reef Light...off Key Largo.
15 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.

$$

GMZ031-240400-
Florida Bay including Barnes Sound, Blackwater Sound, and
Buttonwood Sound-
421 PM EST Sat Nov 23 2024

.TONIGHT...North to northeast winds 5 to 10 knots, increasing to near
10 knots. Bay waters smooth to a light chop, becoming a light
chop.
.SUNDAY...Northeast winds near 10 knots, becoming northeast to
east. Bay waters a light chop.
.SUNDAY NIGHT...Northeast to east winds near 10 knots. Bay waters
a light chop.
.MONDAY...Northeast to east winds increasing to 10 to 15 knots.
Bay waters becoming a light to moderate chop.
.MONDAY NIGHT...Northeast winds 10 to 15 knots, decreasing to near
10 knots. Bay waters a light to moderate chop, becoming a light
chop.
.TUESDAY...Northeast winds near 10 knots. Bay waters a light
chop.
.TUESDAY NIGHT...Northeast winds 10 to 15 knots. Bay waters a
light to moderate chop.
.WEDNESDAY...Northeast to east winds near 10 knots. Bay waters a
light chop.
.WEDNESDAY NIGHT...Northeast to east winds 10 to 15 knots,
decreasing to near 10 knots. Bay waters a light to moderate chop,
becoming a light chop.
.THURSDAY...Northeast to east winds 5 to 10 knots. Bay waters
smooth to a light chop.
.THURSDAY NIGHT...Northeast to east winds near 5 knots, becoming
variable. Bay waters smooth.

$$

GMZ032-035-240400-
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-
421 PM EST Sat Nov 23 2024

.TONIGHT...North to northeast winds 10 to 15 knots, becoming
northeast. Seas 2 to 3 feet, except around 3 feet west of the
Marquesas Keys. Nearshore waters a light to moderate chop.
.SUNDAY...Northeast to east winds near 10 knots. Seas subsiding to
1 to 2 feet. Nearshore waters a light chop.
.SUNDAY NIGHT...Northeast to east winds 10 to 15 knots. Seas 1 to
2 feet. Nearshore waters a light to moderate chop.
.MONDAY...Northeast to east winds 10 to 15 knots. Seas 1 to 2.
Nearshore waters a light to moderate chop.
.MONDAY NIGHT...Northeast winds 10 to 15 knots. Seas around
1 foot. Nearshore waters a light to moderate chop. Isolated
showers.
.TUESDAY...North to northeast winds 10 to 15 knots. Seas 1 to
2 feet. Nearshore waters a light to moderate chop.
.TUESDAY NIGHT...Northeast winds near 10 knots. Seas 1 to 2 feet.
Nearshore waters a light chop.
.WEDNESDAY...Northeast winds 10 to 15 knots, becoming northeast
to east near 10 knots. Seas 1 to 2 feet. Nearshore waters a light
to moderate chop, becoming a light chop.
.WEDNESDAY NIGHT...Northeast to east winds near 10 knots. Seas
1 to 2 feet. Nearshore waters a light chop.
.THURSDAY...Northeast to east winds decreasing to 5 to 10 knots.
Seas subsiding to 1 foot or less. Nearshore waters becoming
smooth to a light chop.
.THURSDAY NIGHT...Northeast winds near 5 knots, becoming variable.
Seas 1 foot or less. Nearshore waters smooth.

$$

GMZ042>044-240400-
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-
421 PM EST Sat Nov 23 2024

.TONIGHT...North to northeast winds 10 to 15 knots, becoming
northeast. Seas 1 to 2 feet, except 2 to 3 feet west of Cosgrove
Shoal Light. Nearshore waters a light to moderate chop.
.SUNDAY...Northeast to east winds near 10 knots. Seas 1 to
2 feet. Nearshore waters a light chop.
.SUNDAY NIGHT...Northeast to east winds 10 to 15 knots. Seas 1 to
2 feet. Nearshore waters a light to moderate chop.
.MONDAY...Northeast to east winds 10 to 15 knots. Seas 1 to
2 feet, building to around 2 feet. Nearshore waters a light to
moderate chop.
.MONDAY NIGHT...Northeast winds 10 to 15 knots. Seas around
2 feet. Nearshore waters a light to moderate chop. Isolated
showers.
.TUESDAY...Northeast winds 10 to 15 knots. Seas around 2 feet.
Nearshore waters a light to moderate chop. Isolated showers.
.TUESDAY NIGHT...Northeast winds 10 to 15 knots. Seas 1 to
2 feet. Nearshore waters a light to moderate chop.
.WEDNESDAY...Northeast winds 10 to 15 knots, becoming northeast to
east. Seas 1 to 2 feet. Nearshore waters a light to moderate
chop.
.WEDNESDAY NIGHT...Northeast to east winds near 10 knots. Seas
1 to 2 feet. Nearshore waters a light chop.
.THURSDAY...Northeast to east winds 5 to 10 knots. Seas 1 to 2
feet, subsiding to around 1 foot. Nearshore waters smooth to a
light chop.
.THURSDAY NIGHT...Northeast winds near 5 knots, becoming variable.
Seas subsiding to 1 foot or less. Nearshore waters smooth.

$$

GMZ052>055-072>075-240400-
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-
421 PM EST Sat Nov 23 2024

.TONIGHT...North to northeast winds 10 to 15 knots, becoming
northeast to east. Seas 2 to 4 feet, occasionally to 5 feet. Wave
Detail: Northwest 3 feet at 7 seconds and northeast 2 feet at 5
seconds.
.SUNDAY...Northeast to east winds 10 to 15 knots. Seas 2 to
3 feet. Wave Detail: Northeast to east 3 feet at 5 seconds and
west to northwest 2 feet at 6 seconds.
.SUNDAY NIGHT...Northeast to east winds 10 to 15 knots. Seas 2 to
3 feet. Wave Detail: Northeast to east 3 feet at 5 seconds and
northwest 1 foot at 5 seconds.
.MONDAY...Northeast to east winds 10 to 15 knots, increasing to
near 15 knots. Seas building to 3 to 4 feet, occasionally to 5
feet. Isolated showers.
.MONDAY NIGHT...Northeast to east winds 15 to 20 knots, decreasing
to near 15 knots. Seas 3 to 4 feet, occasionally to 5 feet.
Isolated showers.
.TUESDAY...Northeast winds near 15 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Isolated showers.
.TUESDAY NIGHT...Northeast winds near 15 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Isolated showers.
.WEDNESDAY...Northeast winds 10 to 15 knots. Seas 2 to 3 feet.
Isolated showers.
.WEDNESDAY NIGHT...Northeast to east winds 10 to 15 knots. Seas
2 to 3 feet. Isolated showers.
.THURSDAY...Northeast to east winds near 10 knots, decreasing to
5 to 10 knots. Seas 2 to 3 feet, subsiding to around 2 feet.
.THURSDAY NIGHT...Northeast to east winds near 5 knots. Seas 1 to
2 feet. Isolated showers.

$$

GMZ033-034-240400-
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-
421 PM EST Sat Nov 23 2024

.TONIGHT...North to northeast winds near 10 knots, becoming
northeast to east. Seas 2 to 3 feet. Wave Detail: Northwest 3
feet at 7 seconds and northeast 1 foot at 3 seconds.
.SUNDAY...Northeast to east winds near 10 knots. Seas 2 to 3 feet,
subsiding to 1 to 2 feet. Wave Detail: Northwest 2 feet at 6
seconds and northeast to east 1 foot at 4 seconds.
.SUNDAY NIGHT...Northeast to east winds 10 to 15 knots. Seas
around 2 feet. Wave Detail: Northeast to east 2 feet at 3 seconds
and northwest 1 foot at 5 seconds.
.MONDAY...Northeast winds 10 to 15 knots. Seas around 2 feet.
.MONDAY NIGHT...Northeast winds 10 to 15 knots. Seas around 2
feet. Isolated showers.
.TUESDAY...North to northeast winds near 15 knots. Seas around 2
feet, building to 2 to 3 feet.
.TUESDAY NIGHT...Northeast winds 10 to 15 knots. Seas 2 to 3 feet,
subsiding to to around 2 feet.
.WEDNESDAY...Northeast winds 10 to 15 knots, becoming northeast
to east 5 to 10 knots. Seas subsiding to 1 to 2 feet.
.WEDNESDAY NIGHT...Northeast to east winds near 10 knots. Seas 1
to 2 feet.
.THURSDAY...East winds decreasing to 5 to 10 knots. Seas 1 to 2
feet, subsiding to around 1 foot.
.THURSDAY NIGHT...East to southeast winds near 5 knots, becoming
variable. Seas 1 to 2 feet.

$$

NB