702
FZUS52 KKEY 100918
CWFKEY

Coastal Waters Forecast for the Florida Keys
National Weather Service Key West FL
418 AM EST Fri Jan 10 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.

GMZ005-101600-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
418 AM EST Fri Jan 10 2025

.SYNOPSIS...High pressure centered near the Carolina coast will
continue to shift east in response to a developing low pressure
system across the northern Gulf of Mexico. This will allow for
winds to clock around from northerlies this morning towards the
east and southeast by this afternoon. Further veering will occur
through Saturday as the low pressure system treks eastward and a
cold front approaches from the northwest. Frontal passage is
expected late Saturday afternoon or early evening with northerly
breezes returning. Another cold front looks to arrive Tuesday with
a more noticeable northerly surge in its wake.

The Approximate Shoreward Edge of the Gulf Stream as of January 4...

51 NM South of Dry Tortugas Light...on Loggerhead Key.
17 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
 9 NM South of Sand Key Light...off Key West.
24 NM South of Looe Key...off Big Pine Key.
35 NM South of Sombrero Key Light...off Marathon.
23 NM Southeast of Alligator Reef Light...off Islamorada.
23 NM Southeast of Molasses Reef Light...off Key Largo.
17 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.

$$

GMZ031-101600-
Florida Bay including Barnes Sound, Blackwater Sound, and
Buttonwood Sound-
418 AM EST Fri Jan 10 2025

.TODAY...North to northeast winds near 10 knots, becoming
east to southeast in the afternoon. Bay waters a light chop.
.TONIGHT...Southeast winds near 10 knots, becoming south to
southwest after midnight. Bay waters a light chop.
.SATURDAY...South to southwest winds near 10 knots, becoming
southwest to west late. Bay waters a light chop. Isolated
showers.
.SATURDAY NIGHT...Northwest to north winds near 10 knots,
becoming north to northeast. Bay waters a light chop. Isolated
showers.
.SUNDAY...North to northeast winds near 10 knots. Bay waters
a light chop. Isolated showers.
.SUNDAY NIGHT...Northeast to east winds near 10 knots. Bay waters
a light chop. Isolated showers.
.MONDAY...East to southeast winds 5 to 10 knots. Bay waters
smooth to a light chop. Isolated showers.
.MONDAY NIGHT...Northeast to east winds near 10 knots. Bay waters
a light chop. Isolated showers.
.TUESDAY...North to northeast winds 10 to 15 knots. Bay waters a
light to moderate chop. Isolated showers.
.TUESDAY NIGHT...North to northeast winds increasing to 15 to 20
knots. Bay waters becoming choppy. Isolated showers.

$$

GMZ032-035-101600-
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-
418 AM EST Fri Jan 10 2025

.TODAY...Northeast to east winds near 10 knots, becoming east to
southeast in the afternoon. Seas 1 to 2 feet, except 2 to 3 feet
west of the Marquesas Keys. Nearshore waters a light chop.
.TONIGHT...Southeast winds 10 to 15 knots, becoming south to
southwest. Seas 1 to 2 feet, except 2 to 3 feet west of the
Marquesas Key. Nearshore waters a light to moderate chop.
.SATURDAY...South to southwest winds 10 to 15 knots, becoming
west in the afternoon. Seas 1 to 2 feet. Nearshore waters a light
to moderate chop. Isolated showers.
.SATURDAY NIGHT...Northwest to north winds 10 to 15 knots,
becoming north to northeast near 10 knots. Seas 1 to 2 feet,
building to 1 to 3 feet, except building to 3 to 4 feet west of
the Marquesas Keys due to a northwest swell. Nearshore waters a
light to moderate chop, becoming a light chop. Isolated showers.
.SUNDAY...Northeast winds near 10 knots. Seas 1 to 3 feet, except
3 to 4 feet west of the Marquesas Keys due to a northwest swell.
Nearshore waters a light chop. Isolated showers.
.SUNDAY NIGHT...Northeast to east winds 10 to 15 knots. Seas 1 to
2 feet, except 2 to 3 feet west of the Marquesas Keys. Nearshore
waters a light to moderate chop. Isolated showers.
.MONDAY...East to southeast winds near 10 knots, decreasing to 5
to 10 knots. Seas 1 to 2 feet. Nearshore waters a light chop,
becoming smooth to a light chop. Isolated showers.
.MONDAY NIGHT...Northeast to east winds 5 to 10 knots, becoming
northeast 10 to 15 knots after midnight. Seas around 1 foot,
except 1 to 2 feet west of the Marquesas Keys. Nearshore waters
smooth to a light chop, becoming a light to moderate chop.
Isolated showers.
.TUESDAY...North to northeast winds 10 to 15 knots, increasing to
15 to 20 knots. Seas 1 to 2 feet, building to 2 to 4 feet,
occasionally to 5 feet. West of the Marquesas Keys, seas 2 to 3
feet, building to 3 to 5 feet, occasionally to 6 feet. Nearshore
waters a light to moderate chop, becoming choppy. Isolated
showers.
.TUESDAY NIGHT...North to northeast winds 15 to 20 knots. Seas
2 to 4 feet, occasionally to 5 feet, except 4 to 6 feet,
occasionally to 8 feet west of the Marquesas Keys. Nearshore
waters choppy. Isolated showers.

$$

GMZ042>044-101600-
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-
418 AM EST Fri Jan 10 2025

.TODAY...Northeast to east winds 10 to 15 knots, becoming
southeast in the afternoon. Seas 1 to 2 feet, except 2 to 3 feet
west of Cosgrove Shoal Light. Nearshore waters a light to moderate
chop.
.TONIGHT...Southeast to south winds 10 to 15 knots, becoming south
to southwest. Seas 2 to 3 feet. Nearshore waters a light to
moderate chop.
.SATURDAY...South to southwest winds 10 to 15 knots, becoming
southwest to west in the afternoon. Seas 2 to 3 feet. Nearshore
waters a light to moderate chop. Isolated showers.
.SATURDAY NIGHT...Northwest to north winds 10 to 15 knots,
becoming north to northeast 5 to 10 knots. Seas around 2 feet,
subsiding to 1 to 2 feet. West of Cosgrove Shoal Light, seas
building to 3 to 4 feet due to a northwest swell. Nearshore
waters a light to moderate chop, becoming smooth to a light chop.
Isolated showers.
.SUNDAY...Northeast winds near 10 knots. Seas 1 to 2 feet, except
3 to 4 feet west of Cosgrove Shoal Light due to a northwest swell.
Nearshore waters a light chop. Isolated showers.
.SUNDAY NIGHT...East winds 10 to 15 knots. Seas 1 to 2 feet,
except 2 to 3 feet west of Cosgrove Shoal Light. Nearshore waters
a light to moderate chop. Isolated showers.
.MONDAY...East to southeast winds near 10 knots, decreasing to 5
to 10 knots. Seas 1 to 2 feet. Nearshore waters a light chop,
becoming smooth to a light chop. Isolated showers.
.MONDAY NIGHT...Northeast to east winds 5 to 10 knots, increasing
to near 10 knots. Seas 1 to 2 feet. Nearshore waters smooth to a
light chop, becoming a light chop. Isolated showers.
.TUESDAY...North to northeast winds 10 to 15 knots, increasing to
15 to 20 knots. Seas 1 to 2 feet. West of Cosgrove Shoal Light,
seas 2 to 3 feet, building to 3 to 5 feet, occasionally to 6 feet.
Nearshore waters a light to moderate chop, becoming choppy.
Isolated showers.
.TUESDAY NIGHT...North to northeast winds 15 to 20 knots. Seas
2 to 3 feet, except 4 to 5 feet, occasionally to 6 feet west of
Cosgrove Shoal Light. Nearshore waters choppy. Isolated showers.

$$

GMZ052>055-072>075-101600-
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-
418 AM EST Fri Jan 10 2025

.TODAY...East winds 10 to 15 knots, becoming east to southeast
in the afternoon. Seas 3 to 4 feet, occasionally to 5 feet. Wave
Detail: East 4 feet at 6 seconds and west to northwest 2 feet at
6 seconds.
.TONIGHT...Southeast to south winds 10 to 15 knots, becoming south
to southwest. Seas 2 to 4 feet, subsiding to 2 to 3 feet. Wave
Detail: Southeast 3 feet at 5 seconds and west to northwest 1
foot at 6 seconds.
.SATURDAY...Southwest winds 10 to 15 knots, becoming southwest to
west. Seas 2 to 3 feet. Wave Detail: South to southwest 3 feet at
5 seconds and northwest 1 foot at 5 seconds. Isolated showers.
.SATURDAY NIGHT...Northwest to north winds 10 to 15 knots,
becoming north to northeast 5 to 10 knots. Seas around 2 feet,
subsiding to 1 to 2 feet. West of Halfmoon Shoal Light, seas
building to 2 to 4 feet, occasionally to 5 feet due to a northwest
swell. Isolated showers.
.SUNDAY...Northeast winds increasing to near 10 knots. Seas 2 to
4 feet, occasionally to 5 feet due to a west to northwest swell.
Isolated showers.
.SUNDAY NIGHT...Northeast to east winds near 15 knots, becoming
east to southeast 10 to 15 knots. Seas 2 to 4 feet, occasionally
to 5 feet. Isolated showers.
.MONDAY...East to southeast winds decreasing to near 10 knots.
Seas 2 to 3 feet. Isolated showers.
.MONDAY NIGHT...Northeast to east winds 10 to 15 knots. Seas 2 to
3 feet. Isolated showers.
.TUESDAY...Northeast winds increasing to 15 to 20 knots. Seas 2
to 3 feet, building to 3 to 5 feet, occasionally to 6 feet in the
afternoon. Isolated showers.
.TUESDAY NIGHT...Northeast winds near 20 knots. Seas building to 5
to 7 feet, occasionally to 9 feet. Isolated showers.

$$

GMZ033-034-101600-
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-
418 AM EST Fri Jan 10 2025

.TODAY...East winds 10 to 15 knots, becoming east to southeast.
Seas 2 to 3 feet. Wave Detail: East 2 feet at 4 seconds and
northwest 2 feet at 6 seconds.
.TONIGHT...Southeast to south winds 10 to 15 knots, becoming south
to southwest. Seas 2 to 3 feet. Wave Detail: Southeast to south 2
feet at 4 seconds and northwest 1 foot at 6 seconds.
.SATURDAY...South to southwest winds 10 to 15 knots, becoming
northwest to north near 15 knots in the afternoon. Seas 2 to 3
feet. Wave Detail: South to southwest 2 feet at 4 seconds and west
to northwest 2 feet at 4 seconds. Scattered showers.
.SATURDAY NIGHT...North to northeast winds near 15 knots,
decreasing to 10 to 15 knots. Seas 2 to 3 feet, building to 3 to 4
feet, occasionally to 5 feet due to a northwest swell. Isolated
showers.
.SUNDAY...Northeast winds 10 to 15 knots. Seas 3 to 4 feet,
occasionally to 5 feet due to a west to northwest swell. Isolated
showers.
.SUNDAY NIGHT...Northeast to east winds 10 to 15 knots, becoming
east. Seas 2 to 3 feet. Isolated showers.
.MONDAY...East to southeast winds near 10 knots. Seas around 2
feet. Isolated showers.
.MONDAY NIGHT...Northeast to east winds 10 to 15 knots, increasing
to near 15 knots. Seas 2 to 3 feet. Isolated showers.
.TUESDAY...North to northeast winds 15 to 20 knots. Seas 3 to
4 feet, occasionally to 5 feet, building to 4 to 6 feet,
occasionally to 8 feet in the afternoon. Isolated showers.
.TUESDAY NIGHT...Northeast winds near 20 knots. Seas 4 to 6 feet,
occasionally to 8 feet. Isolated showers.

$$