Coastal Waters Forecast
Issued by NWS Key West, FL

Home |  Current Version |  Previous Version |  Text Only |  Print | Product List |  Glossary Off
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29
711
FZUS52 KKEY 231416
CWFKEY

Coastal Waters Forecast for the Florida Keys
National Weather Service Key West FL
1016 AM EDT Thu May 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.

GMZ005-232100-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
1016 AM EDT Thu May 23 2024

.SYNOPSIS...High pressure will remain the dominant pattern,
allowing for an extended period of light to gentle east to
southeast breezes through the end of the week. During the later
half of Sunday, breezes will clock to a southeasterly to south
direction and modestly freshen as the high pressure shifts its
position.

The Approximate Shoreward Edge of the Gulf Stream as of May 15,
2024...

49 NM South of Dry Tortugas Light...on Loggerhead Key.
32 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
24 NM South of Sand Key Light...off Key West.
27 NM South of Looe Key...off Big Pine Key.
29 NM South of Sombrero Key Light...off Marathon.
 8 NM Southeast of Alligator Reef Light...off Islamorada.
 3 NM Southeast of Molasses Reef Light...off Key Largo.

Gulf Stream Information Courtesy of the National Weather Service in
Key West.

$$

GMZ031-232100-
Florida Bay including Barnes Sound, Blackwater Sound, and
Buttonwood Sound-
1016 AM EDT Thu May 23 2024

.THIS AFTERNOON...Northeast to east winds 5 to 10 knots, becoming
east to southeast near 10 knots. Bay waters smooth to a light
chop, becoming a light chop. Isolated showers.
.TONIGHT...East to southeast winds 5 to 10 knots. Bay waters
smooth to a light chop. Isolated showers.
.FRIDAY...Southeast winds near 5 knots. Bay waters smooth.
Isolated showers.
.FRIDAY NIGHT...Southeast to south winds 5 to 10 knots. Bay
waters smooth to a light chop.
.SATURDAY...Southeast to south winds 5 to 10 knots. Bay waters
smooth to a light chop. Isolated showers.
.SATURDAY NIGHT...Southeast winds near 5 knots. Bay waters
smooth.
.SUNDAY...Southeast to south winds near 5 knots, increasing to
near 10 knots in the afternoon. Bay waters smooth, becoming a
light chop. Isolated showers.
.SUNDAY NIGHT...Southeast to south winds 5 to 10 knots. Bay
waters smooth to a light chop. Isolated showers.
.MONDAY...Southeast to south winds 5 to 10 knots, increasing to
near 10 knots. Bay waters smooth to a light chop, becoming a light
chop. Isolated showers.
.MONDAY NIGHT...Southeast to south winds near 10 knots. Bay
waters a light chop. Isolated showers.

$$

GMZ032-035-232100-
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-
1016 AM EDT Thu May 23 2024

.THIS AFTERNOON...Northeast to east winds 5 to 10 knots, becoming
east to southeast near 10 knots. Seas 1 foot or less. Nearshore
waters smooth to a light chop, becoming a light chop. Isolated
showers.
.TONIGHT...East to southeast winds near 10 knots. Seas 1 foot or
less. Nearshore waters a light chop. Isolated showers.
.FRIDAY...Southeast winds 5 to 10 knots. Seas 1 foot or less.
Nearshore waters smooth to a light chop. Isolated showers.
.FRIDAY NIGHT...Southeast winds 5 to 10 knots. Seas 1 foot or
less. Nearshore waters smooth to a light chop.
.SATURDAY...Southeast winds 5 to 10 knots. Seas 1 foot or less.
Nearshore waters smooth to a light chop. Isolated showers.
.SATURDAY NIGHT...Southeast winds 5 to 10 knots. Seas 1 foot or
less. Nearshore waters smooth to a light chop.
.SUNDAY...Southeast to south winds 5 to 10 knots. Seas 1 foot or
less. Nearshore waters smooth to a light chop. Isolated showers.
.SUNDAY NIGHT...Southeast winds increasing to 10 to 15 knots.
Seas around 1 foot. Nearshore waters becoming a light to moderate
chop. Isolated showers.
.MONDAY...Southeast to south winds near 10 knots. Seas 1 foot or
less. Nearshore waters a light chop. Isolated showers.
.MONDAY NIGHT...Southeast winds near 10 knots, increasing to 10 to
15 mph. Seas 1 to 2 feet. Nearshore waters a light chop, becoming
a light to moderate chop. Isolated showers.

$$

GMZ042>044-232100-
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-
1016 AM EDT Thu May 23 2024

.THIS AFTERNOON...Northeast to east winds 5 to 10 knots, becoming
east to southeast near 10 knots. Seas around 1 foot. Nearshore
waters smooth to a light chop, becoming a light chop. Isolated
showers.
.TONIGHT...East to southeast winds near 10 knots. Seas around
1 foot. Nearshore waters a light chop. Isolated showers.
.FRIDAY...East to southeast winds 5 to 10 knots. Seas around
1 foot. Nearshore waters smooth to a light chop. Isolated
showers.
.FRIDAY NIGHT...East to southeast winds 5 to 10 knots. Seas around
1 foot. Nearshore waters smooth to a light chop.
.SATURDAY...Southeast winds near 5 knots. Seas 1 foot or less.
Nearshore waters smooth. Isolated showers.
.SATURDAY NIGHT...Southeast winds near 5 knots. Seas 1 foot or
less. Nearshore waters smooth.
.SUNDAY...Southeast winds 5 to 10 knots. Seas around 1 foot.
Nearshore waters smooth to a light chop.
.SUNDAY NIGHT...Southeast winds 10 to 15 knots. Seas building to 1
to 2 feet. Nearshore waters a light to moderate chop. Isolated
showers.
.MONDAY...Southeast to south winds near 10 knots. Seas 1 to 2
feet. Nearshore waters a light chop. Isolated showers.
.MONDAY NIGHT...Southeast winds near 10 knots. Seas 1 to 2 feet.
Nearshore waters a light chop. Isolated showers.

$$

GMZ052>055-072>075-232100-
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-
1016 AM EDT Thu May 23 2024

.THIS AFTERNOON...East winds 5 to 10 knots, increasing to near 10
knots. Seas 1 to 2 feet. Wave Detail: East 2 feet at 4 seconds.
Isolated showers.
.TONIGHT...East to southeast winds near 10 knots. Seas 1 to
2 feet. Wave Detail: East 2 feet at 4 seconds. Isolated showers.
.FRIDAY...East to southeast winds 5 to 10 knots. Seas 1 to
2 feet. Wave Detail: East 1 foot at 4 seconds. Isolated showers.
.FRIDAY NIGHT...East to southeast winds 5 to 10 knots. Seas 1 to
2 feet.
.SATURDAY...East to southeast winds 5 to 10 knots. Seas around
1 foot.
.SATURDAY NIGHT...East to southeast winds 5 to 10 knots. Seas
around 1 foot. Isolated showers.
.SUNDAY...Southeast winds 5 to 10 knots, increasing to near 10
knots. Seas 1 to 2 feet. Isolated showers.
.SUNDAY NIGHT...East to southeast winds 10 to 15 knots. Seas 1 to
3 feet. Isolated showers.
.MONDAY...Southeast winds near 10 knots. Seas 1 to 2 feet.
Isolated showers.
.MONDAY NIGHT...Southeast winds 10 to 15 knots. Seas 1 to 3 feet.
Isolated showers.

$$

GMZ033-034-232100-
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-
1016 AM EDT Thu May 23 2024

.THIS AFTERNOON...East 5 to 10 knots, becoming east to southeast
near 10 knots. Seas around 1 foot. Wave Detail: East to southeast
1 foot at 3 seconds. Isolated showers.
.TONIGHT...East to southeast winds near 10 knots. Seas around 1
foot. Wave Detail: East to southeast 1 foot at 3 seconds.
Isolated showers.
.FRIDAY...Southeast winds 5 to 10 knots. Seas 1 foot or less.
Wave Detail: Southeast 1 foot at 3 seconds. Isolated showers.
.FRIDAY NIGHT...Southeast winds 5 to 10 knots. Seas 1 foot or
less.
.SATURDAY...Southeast winds 5 to 10 knots. Seas around 1 foot.
Isolated showers.
.SATURDAY NIGHT...East to southeast winds 5 to 10 knots. Seas
around 1 foot.
.SUNDAY...Southeast winds 5 to 10 knots. Seas around 1 foot.
.SUNDAY NIGHT...Southeast winds near 10 knots. Seas 1 to 2 feet.
.MONDAY...Southeast to south winds near 10 knots. Seas 1 to 2
feet. Isolated showers.
.MONDAY NIGHT...Southeast winds 10 to 15 knots. Seas 1 to 2 feet.
Isolated showers.

$$