344
FZUS52 KKEY 211430
CWFKEY

Coastal Waters Forecast for the Florida Keys
National Weather Service Key West FL
1030 AM EDT Tue May 21 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.

GMZ005-212030-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
1030 AM EDT Tue May 21 2024

.SYNOPSIS...This afternoon through Wednesday, breezes will
gradually shift to the east as high pressure in the western North
Atlantic builds back in across the region. Gentle east to
southeast breezes will resume Friday through Saturday.

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.

$$

GMZ031-212030-
Florida Bay including Barnes Sound, Blackwater Sound, and
Buttonwood Sound-
1030 AM EDT Tue May 21 2024

.THIS AFTERNOON...Variable winds near 5 knots. Bay waters smooth.
Scattered showers and isolated thunderstorms.
.TONIGHT...East winds near 5 knots. Bay waters smooth. Scattered
showers and isolated thunderstorms.
.WEDNESDAY...East winds 5 to 10 knots. Bay waters smooth to a
light chop. Scattered showers and isolated thunderstorms.
.WEDNESDAY NIGHT...East winds 5 to 10 knots. Bay waters smooth to
a light chop. Scattered showers and isolated thunderstorms.
.THURSDAY...East winds 5 to 10 knots. Bay waters smooth to a
light chop. Isolated showers and thunderstorms.
.THURSDAY NIGHT...East winds 5 to 10 knots. Bay waters smooth to
a light chop. Isolated showers and thunderstorms.
.FRIDAY...East to southeast winds 5 to 10 knots. Bay waters
smooth to a light chop. Isolated showers and thunderstorms.
.FRIDAY NIGHT...East to southeast winds 5 to 10 knots. Bay waters
smooth to a light chop. Isolated showers and thunderstorms.
.SATURDAY...Southeast winds 5 to 10 knots. Bay waters smooth to a
light chop. Isolated showers and thunderstorms.
.SATURDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters
smooth to a light chop. Isolated showers and thunderstorms.

$$

GMZ032-035-212030-
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-
1030 AM EDT Tue May 21 2024

.THIS AFTERNOON...Variable winds near 5 knots. Seas 1 foot or
less. Nearshore waters smooth. Isolated showers and thunderstorms.
.TONIGHT...Northeast to east winds near 5 knots. Seas 1 foot or
less. Nearshore waters smooth. Scattered showers and isolated
thunderstorms.
.WEDNESDAY...East to southeast winds 5 to 10 knots. Seas 1 foot
or less. Nearshore waters smooth to a light chop. Scattered
showers and isolated thunderstorms.
.WEDNESDAY NIGHT...East to southeast winds near 10 knots. Seas
1 foot or less. Nearshore waters a light chop. Scattered showers
and isolated thunderstorms.
.THURSDAY...East winds 5 to 10 knots. Seas 1 foot or less.
Nearshore waters smooth to a light chop. Isolated showers and
thunderstorms.
.THURSDAY NIGHT...East to southeast winds 5 to 10 knots. Seas
1 foot or less. Nearshore waters smooth to a light chop. Isolated
showers and thunderstorms.
.FRIDAY...East to southeast winds 5 to 10 knots. Seas 1 foot or
less. Nearshore waters smooth to a light chop. Isolated showers
and thunderstorms.
.FRIDAY NIGHT...East to southeast winds 5 to 10 knots. Seas
1 foot or less. Nearshore waters smooth to a light chop. Isolated
showers and thunderstorms.
.SATURDAY...Southeast winds near 5 knots. Seas 1 foot or less in
the morning, then 1 foot or less. Nearshore waters smooth.
Isolated showers and thunderstorms.
.SATURDAY NIGHT...East to southeast winds 5 to 10 knots. Seas
1 foot or less, then 1 foot or less after midnight. Nearshore
waters smooth to a light chop. Isolated showers and
thunderstorms.

$$

GMZ042>044-212030-
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-
1030 AM EDT Tue May 21 2024

.THIS AFTERNOON...Variable winds near 5 knots. Seas 1 foot or
less. Nearshore waters smooth. Isolated showers and thunderstorms.
.TONIGHT...Northeast to east winds near 5 knots. Seas 1 foot or
less. Nearshore waters smooth. Scattered showers and isolated
thunderstorms.
.WEDNESDAY...East winds 5 to 10 knots. Seas 1 foot or less.
Nearshore waters smooth to a light chop. Isolated showers and
thunderstorms.
.WEDNESDAY NIGHT...East to southeast winds 5 to 10 knots. Seas
1 to 2 feet. Nearshore waters smooth to a light chop. Scattered
showers and isolated thunderstorms.
.THURSDAY...East winds 5 to 10 knots. Seas around 1 foot.
Nearshore waters smooth to a light chop. Isolated showers and
thunderstorms.
.THURSDAY NIGHT...East to southeast winds 5 to 10 knots. Seas
around 1 foot. Nearshore waters smooth to a light chop. Isolated
showers and thunderstorms.
.FRIDAY...East winds 5 to 10 knots. Seas around 1 foot. Nearshore
waters smooth to a light chop. Isolated showers and
thunderstorms.
.FRIDAY NIGHT...East to southeast winds 5 to 10 knots. Seas
around 1 foot. Nearshore waters smooth to a light chop. Isolated
showers and thunderstorms.
.SATURDAY...East to southeast winds near 5 knots. Seas around
1 foot. Nearshore waters smooth. Isolated showers and
thunderstorms.
.SATURDAY NIGHT...East to southeast winds 5 to 10 knots. Seas
around 1 foot. Nearshore waters smooth to a light chop. Isolated
showers and thunderstorms.

$$

GMZ052>055-072>075-212030-
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-
1030 AM EDT Tue May 21 2024

.THIS AFTERNOON...Variable winds near 5 knots. Seas around 1
foot. Scattered showers and isolated thunderstorms.
.TONIGHT...East winds near 5 knots. Seas around 1 foot. Scattered
showers and isolated thunderstorms.
.WEDNESDAY...East winds 5 to 10 knots. Seas 1 to 2 feet. Wave
Detail: Northeast to east 2 feet at 3 seconds. Scattered showers
and isolated thunderstorms.
.WEDNESDAY NIGHT...East to southeast winds 5 to 10 knots. Seas
1 to 2 feet. Scattered showers and isolated thunderstorms.
.THURSDAY...East winds 5 to 10 knots. Seas 1 to 2 feet. Isolated
showers and thunderstorms.
.THURSDAY NIGHT...East winds 5 to 10 knots. Seas 1 to 2 feet.
Isolated showers and thunderstorms.
.FRIDAY...East winds 5 to 10 knots. Seas 1 to 2 feet. Isolated
showers and thunderstorms.
.FRIDAY NIGHT...East to southeast winds 5 to 10 knots. Seas 1 to
2 feet. Isolated showers and thunderstorms.
.SATURDAY...East to southeast winds 5 to 10 knots. Seas 1 to
2 feet. Isolated showers and thunderstorms.
.SATURDAY NIGHT...East to southeast winds 10 to 15 knots. Seas
1 to 2 feet. Isolated showers and thunderstorms.

$$

GMZ033-034-212030-
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-
1030 AM EDT Tue May 21 2024

.THIS AFTERNOON...Variable winds near 5 knots. Seas around 1
foot. Wave Detail: Northwest to north 1 foot at 4 seconds.
Isolated showers and thunderstorms.
.TONIGHT...Northeast winds near 5 knots. Seas around 1 foot. Wave
Detail: West to northwest 1 foot at 5 seconds and northwest to
north 1 foot at 4 seconds. Isolated showers and thunderstorms.
.WEDNESDAY...East to southeast winds 5 to 10 knots. Seas around
1 foot. Wave Detail: North 1 foot at 3 seconds. Isolated showers
and thunderstorms.
.WEDNESDAY NIGHT...East to southeast winds 5 to 10 knots. Seas
1 to 2 feet. Scattered showers and isolated thunderstorms.
.THURSDAY...East to southeast winds 5 to 10 knots. Seas 1 foot or
less. Isolated showers and thunderstorms.
.THURSDAY NIGHT...East to southeast winds 5 to 10 knots. Seas
1 foot or less. Isolated showers and thunderstorms.
.FRIDAY...East to southeast winds 5 to 10 knots, becoming around
5 knots in the afternoon. Seas 1 foot or less. Isolated showers
and thunderstorms.
.FRIDAY NIGHT...Southeast winds 5 to 10 knots. Seas 1 foot or
less. Isolated showers and thunderstorms.
.SATURDAY...Southeast winds 5 to 10 knots, becoming around
5 knots in the afternoon. Seas 1 foot or less. Isolated showers
and thunderstorms.
.SATURDAY NIGHT...East to southeast winds 5 to 10 knots. Seas
1 to 2 feet. Isolated showers and thunderstorms.

$$

NB/BT