358
FZUS52 KKEY 121523
CWFKEY

Coastal Waters Forecast for the Florida Keys
National Weather Service Key West FL
1023 AM EST Wed Feb 12 2025

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.

GMZ005-122130-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
1023 AM EST Wed Feb 12 2025

.SYNOPSIS...
A robust Atlantic surface ridge will stretch westward across the
North Atlantic to the Florida Peninsula, maintaining moderate to
fresh breezes on Keys waters over the next couple of days. The
ridge will then retreat eastward, as a mid-latitude trough
advances off the Eastern Seaboard late Tuesday. This will allow
breezes to slacken and veer further southeasterly. This modest
lull will be short-lived, as a new continental high builds
eastwards off the eastern United States. As this ridge builds in,
expect easterly breezes to once again freshen.

The Approximate Shoreward Edge of the Gulf Stream as of February 12...

11 NM South of Dry Tortugas Light...on Loggerhead Key.
 6 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
 4 NM South of Sand Key Light...off Key West.
 9 NM South of Looe Key...off Big Pine Key.
 9 NM South of Sombrero Key Light...off Marathon.
11 NM Southeast of Alligator Reef Light...off Islamorada.
10 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 National Weather Service in Key
West based on products from the Real Time Ocean Forecast System and
NASA SPoRT.

$$

GMZ031-122130-
Florida Bay including Barnes Sound, Blackwater Sound, and
Buttonwood Sound-
1023 AM EST Wed Feb 12 2025

.THIS AFTERNOON...Southeast winds near 15 knots. Bay waters a
moderate chop.
.TONIGHT...Southeast winds near 15 knots. Bay waters a moderate
chop.
.THURSDAY...Southeast winds near 15 knots, decreasing to 10 to 15
knots. Bay waters a moderate chop, becoming a light to moderate
chop.
.THURSDAY NIGHT...East to southeast winds near 10 knots. Bay
waters a light chop. Isolated showers.
.FRIDAY...East winds 10 to 15 knots. Bay waters a light to
moderate chop. Isolated showers.
.FRIDAY NIGHT...East winds near 15 knots, increasing to 15 to 20
knots. Bay waters a moderate chop, becoming choppy. Isolated
showers.
.SATURDAY...East to southeast winds 15 to 20 knots. Bay waters
choppy. Isolated showers.
.SATURDAY NIGHT...Southeast winds 15 to 20 knots. Bay waters
choppy. Isolated showers.
.SUNDAY...Southeast to south winds near 15 knots, becoming
southwest near 10 knots. Bay waters a moderate chop, becoming a
light chop. Isolated showers.
.SUNDAY NIGHT...Winds becoming west to northwest and increasing
to 10 to 15 knots. Bay waters becoming a light to moderate chop.
Isolated showers.

$$

GMZ032-035-122130-
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-
1023 AM EST Wed Feb 12 2025

.THIS AFTERNOON...Southeast winds near 15 knots. Seas 1 to 2
feet, except 2 to 3 feet west of the Marquesas Keys. Nearshore
waters a moderate chop.
.TONIGHT...Southeast winds near 15 knots. Seas subsiding to 1 to
2 feet. Nearshore waters a moderate chop.
.THURSDAY...Southeast winds near 15 knots, decreasing to 10 to 15
knots. Seas 1 to 2 feet. Nearshore waters a moderate chop,
becoming a light to moderate chop.
.THURSDAY NIGHT...East to southeast winds near 10 knots. Seas 1 to
2 feet. Nearshore waters a light chop. Isolated showers.
.FRIDAY...East winds 10 to 15 knots. Seas 1 to 2 feet. Nearshore
waters a light to moderate chop. Isolated showers.
.FRIDAY NIGHT...East winds near 15 knots, increasing to 15 to 20
knots. Seas 1 to 2 feet, except building to 2 to 3 feet west of
the Marquesas Keys. Nearshore waters a moderate chop, becoming
choppy. Isolated showers.
.SATURDAY...East to southeast winds 15 to 20 knots. Seas 1 to
2 feet, except 3 to 4 feet, occasionally to 5 feet west of the
Marquesas Keys. Nearshore waters choppy. Isolated showers.
.SATURDAY NIGHT...Southeast winds 15 to 20 knots. Seas 1 to
2 feet, except 3 to 4 feet west of the Marquesas Keys. Nearshore
waters choppy. Isolated showers.
.SUNDAY...Southeast to south winds near 15 knots, becoming
southwest near 10 knots. Seas 1 to 2 feet. Nearshore waters a
moderate chop, becoming a light chop. Isolated showers.
.SUNDAY NIGHT...Winds becoming northwest and increasing to 10 to
15 knots. Seas 1 to 2 feet. Nearshore waters becoming a light to
moderate chop. Isolated showers.

$$

GMZ042>044-122130-
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-
1023 AM EST Wed Feb 12 2025

.THIS AFTERNOON...Southeast winds near 15 knots. Seas 2 to 4
feet, occasionally to 5 feet. Nearshore waters a moderate chop.
.TONIGHT...Southeast winds near 15 knots. Seas subsiding to 2 to
3 feet. Nearshore waters a moderate chop.
.THURSDAY...Southeast winds near 15 knots, decreasing to 10 to 15
knots. Seas 2 to 4 feet, subsiding to 2 to 3 feet. Nearshore
waters a moderate chop, becoming a light to moderate chop.
.THURSDAY NIGHT...East to southeast winds near 10 knots. Seas
around 2 feet. Nearshore waters a light chop. Isolated showers.
.FRIDAY...East winds 10 to 15 knots, increasing to near 15 knots.
Seas 2 to 3 feet. Nearshore waters a light to moderate chop,
becoming a moderate chop. Isolated showers.
.FRIDAY NIGHT...East winds near 15 knots, increasing to 15 to 20
knots. Seas building to 2 to 4 feet, occasionally to 5 feet.
Nearshore waters a moderate chop, becoming choppy. Isolated
showers.
.SATURDAY...East to southeast winds 15 to 20 knots. Seas 3 to 4
feet, occasionally to 5 feet. Nearshore waters choppy. Isolated
showers.
.SATURDAY NIGHT...Southeast winds 15 to 20 knots. Seas 3 to
4 feet, occasionally to 5 feet. Nearshore waters choppy. Isolated
showers.
.SUNDAY...Southeast to south winds near 15 knots, becoming
southwest near 10 knots. Seas 3 to 4 feet, occasionally to 5 feet,
subsiding to 2 to 3 feet. Nearshore waters a moderate chop,
becoming a light chop. Isolated showers.
.SUNDAY NIGHT...Winds becoming west to northwest and increasing to
10 to 15 knots. Seas 1 to 2 feet. Nearshore waters becoming a
light to moderate chop. Isolated showers.

$$

GMZ052-053-072-073-122130-
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-
1023 AM EST Wed Feb 12 2025

...SMALL CRAFT SHOULD EXERCISE CAUTION...

.THIS AFTERNOON...Southeast winds 15 to 20 knots. Seas 4 to 5
feet, occasionally to 6 feet. Wave Detail: East to southeast 4
feet at 5 seconds.
.TONIGHT...Southeast winds 15 to 20 knots. Seas 3 to 5 feet. Wave
Detail: East 4 feet at 6 seconds.
.THURSDAY...Southeast winds near 15 knots, decreasing to 10 to 15
knots. Seas 3 to 5 feet, subsiding to 2 to 4 feet. Wave Detail:
East 4 feet at 6 seconds.
.THURSDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet.
Isolated showers.
.FRIDAY...East winds near 15 knots, increasing to 15 to 20 knots.
Seas 2 to 4 feet, building to 3 to 5 feet. Isolated showers.
.FRIDAY NIGHT...East winds 15 to 20 knots. Seas 3 to 5 feet,
occasionally to 6 feet. Isolated showers.
.SATURDAY...East to southeast winds 15 to 20 knots. Seas 4 to
6 feet, occasionally to 8 feet. Isolated showers.
.SATURDAY NIGHT...Southeast winds 15 to 20 knots. Seas 3 to
5 feet, occasionally to 6 feet. Isolated showers.
.SUNDAY...Southeast to south winds near 15 knots, becoming
southwest near 10 knots. Seas 3 to 5 feet, occasionally to 5
feet, subsiding to 2 to 4 feet. Isolated showers.
.SUNDAY NIGHT...Winds becoming west to northwest and increasing to
10 to 15 knots. Seas 1 to 2 feet. Isolated showers.

$$

GMZ054-055-074-075-122130-
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-
1023 AM EST Wed Feb 12 2025

.THIS AFTERNOON...Southeast winds near 15 knots. Seas 4 to 5
feet, occasionally to 6 feet. Wave Detail: East to southeast 4
feet at 5 seconds.
.TONIGHT...Southeast winds 10 to 15 knots. Seas 2 to 4 feet,
occasionally to 5 feet. Wave Detail: East 4 feet at 6 seconds.
.THURSDAY...Southeast winds 10 to 15 knots. Seas 2 to 4 feet,
occasionally to 5 feet. Wave Detail: East 4 feet at 6 seconds.
.THURSDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet.
Isolated showers.
.FRIDAY...East winds near 15 knots, increasing to 15 to 20 knots.
Seas 2 to 4 feet, building to 3 to 5 feet. Isolated showers.
.FRIDAY NIGHT...East winds 15 to 20 knots. Seas 3 to 5 feet,
occasionally to 6 feet. Isolated showers.
.SATURDAY...East to southeast winds 15 to 20 knots. Seas 4 to
6 feet, occasionally to 8 feet. Isolated showers.
.SATURDAY NIGHT...Southeast winds 15 to 20 knots. Seas 3 to
5 feet, occasionally to 6 feet. Isolated showers.
.SUNDAY...Southeast to south winds near 15 knots, becoming
southwest near 10 knots. Seas 3 to 5 feet, occasionally to 5
feet, subsiding to 2 to 4 feet. Isolated showers.
.SUNDAY NIGHT...Winds becoming west to northwest and increasing to
10 to 15 knots. Seas 1 to 2 feet. Isolated showers.

$$

GMZ033-034-122130-
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-
1023 AM EST Wed Feb 12 2025

.THIS AFTERNOON...Southeast winds near 15 knots. Seas 2 to 4
feet, subsiding to 2 to 3 feet. Wave Detail: Southeast 2 feet at 4
seconds.
.TONIGHT...Southeast winds decreasing to 10 to 15 knots. Seas
subsiding to around 2 feet. Wave Detail: East to southeast 2 feet
at 4 seconds.
.THURSDAY...Southeast winds 10 to 15 knots. Seas subsiding to 1
to 2 feet. Wave Detail: Southeast 2 feet at 4 seconds.
.THURSDAY NIGHT...East winds near 10 knots. Seas 1 to 2 feet.
Isolated showers.
.FRIDAY...East winds 10 to 15 knots. Seas 1 to 2 feet. Isolated
showers.
.FRIDAY NIGHT...East winds increasing to near 15 knots. Seas
building to 2 to 4 feet.
.SATURDAY...East to southeast winds near 15 knots. Seas 2 to
4 feet, occasionally to 5 feet. Isolated showers.
.SATURDAY NIGHT...Southeast winds near 15 knots. Seas 2 to 3
feet. Isolated showers.
.SUNDAY...Southeast to south winds 10 to 15 knots, becoming
southwest near 10 knots. Seas 2 to 3 feet. Isolated showers.
.SUNDAY NIGHT...Winds becoming northwest and increasing to near
15 knots. Seas building to 2 to 3 feet. Isolated showers.

$$

BT/11