307
FZUS52 KKEY 221431
CWFKEY

Coastal Waters Forecast for the Florida Keys
National Weather Service Key West FL
1031 AM EDT Tue Apr 22 2025

Florida Bay, Hawk Channel and Straits of Florida from Ocean Reef
to south of Dry Tortugas, and the extreme southeastern Gulf of
America, 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.

GMZ005-222045-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
1031 AM EDT Tue Apr 22 2025

.SYNOPSIS...Moderate to fresh easterly breezes will slacken
later this afternoon. As the surface high north of The Bahamas
wobbles about, mainly east breezes will be generally moderate,
peaking at night and lulling during the day. Later this week, the
high will strengthen once again allowing for another round of
fresh breezes as early as Thursday.

The Approximate Shoreward Edge of the Gulf Stream as of April
22nd...

30 NM South of Dry Tortugas Light...on Loggerhead Key.
 6 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
 2 NM South of Sand Key Light...off Key West.
 4 NM South of Looe Key...off Big Pine Key.
 5 NM South of Sombrero Key Light...off Marathon.
 7 NM Southeast of Alligator Reef Light...off Islamorada.
 5 NM Southeast of Molasses Reef Light...off Key Largo.
 4 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 NASA SPoRT.

$$

GMZ031-222045-
Florida Bay including Barnes Sound, Blackwater Sound, and
Buttonwood Sound-
1031 AM EDT Tue Apr 22 2025

.THIS AFTERNOON...East to southeast winds near 15 knots,
decreasing to 10 to 15 knots. Bay waters a moderate chop, becoming
a light to moderate chop.
.TONIGHT...East winds near 15 knots. Bay waters a moderate chop.
.WEDNESDAY...East winds 10 to 15 knots, increasing to near 15
knots. Bay waters a light to moderate chop, becoming a moderate
chop.
.WEDNESDAY NIGHT...Northeast to east winds 15 to 20 knots,
decreasing to near 15 knots. Bay waters choppy, becoming a
moderate chop.
.THURSDAY...Northeast to east winds 10 to 15 knots, becoming east
and increasing to 15 to 20 knots in the afternoon. Bay waters a
light to moderate chop, becoming choppy. Isolated showers.
.THURSDAY NIGHT...Northeast to east winds 15 to 20 knots. Bay
waters choppy. Isolated showers.
.FRIDAY...Northeast to east winds 15 to 20 knots, becoming east.
Bay waters choppy. Isolated showers.
.FRIDAY NIGHT...Northeast to east winds 15 to 20 knots, decreasing
to near 15 knots. Bay waters choppy, becoming a moderate chop.
Isolated showers.
.SATURDAY...Northeast to east winds near 15 knots. Bay waters a
moderate chop. Isolated showers.
.SATURDAY NIGHT...Northeast to east winds 15 to 20 knots,
decreasing to 10 to 15 knots. Bay waters choppy, becoming a light
to moderate chop. Isolated showers.

$$

GMZ032-035-222045-
Bayside and Gulfside from Craig Key to west end of Seven Mile
Bridge-
Gulf of America from west end of Seven Mile Bridge to Halfmoon
Shoal out to 5 Fathoms-
1031 AM EDT Tue Apr 22 2025

...SMALL CRAFT SHOULD EXERCISE CAUTION UNTIL WINDS DECREASE...

.THIS AFTERNOON...East to southeast winds 15 to 20 knots,
becoming east and decreasing to near 15 knots. Seas 1 to 2 feet.
West of the Marquesas Keys, seas 3 to 4 feet, occasionally to 5
feet, subsiding to 2 to 3 feet. Nearshore waters choppy, becoming
a moderate chop.
.TONIGHT...East winds near 15 knots. Seas 1 to 2 feet, except 2
to 3 feet west of the Marquesas Keys. Nearshore waters a moderate
chop.
.WEDNESDAY...East winds near 15 knots. Seas 1 to 2 feet, except 2
to 3 feet west of the Marquesas Keys. Nearshore waters a moderate
chop.
.WEDNESDAY NIGHT...Northeast to east winds 15 to 20 knots. Seas
1 to 2 feet, except 2 to 3 feet west of the Marquesas Keys.
Nearshore waters choppy.
.THURSDAY...Northeast to east winds near 15 knots, increasing to 15
to 20 knots. Seas 1 to 2 feet, except 2 to 3 feet west of the
Marquesas Keys. Nearshore waters a moderate chop, becoming choppy.
Isolated showers.
.THURSDAY NIGHT...Northeast to east winds 15 to 20 knots. Seas 1
to 2 feet, except 2 to 4 feet, occasionally to 5 feet west of the
Marquesas Keys. Nearshore waters choppy. Isolated showers.
.FRIDAY...Northeast to east winds 15 to 20 knots, becoming east.
Seas 1 to 2 feet, except 2 to 4 feet, occasionally to 5 feet west
of the Marquesas Keys. Nearshore waters choppy. Isolated showers.
.FRIDAY NIGHT...Northeast to east winds 15 to 20 knots, decreasing
to near 15 knots. Seas 1 to 2 feet, except around 3 feet west of
the Marquesas Keys. Nearshore waters choppy, becoming a moderate
chop. Isolated showers.
.SATURDAY...Northeast to east winds near 15 knots, becoming east
and increasing to 15 to 20 knots. Seas 1 to 2 feet, except 2 to 3
feet west of the Marquesas Keys. Nearshore waters a moderate
chop, becoming choppy. Isolated showers.
.SATURDAY NIGHT...Northeast to east winds 15 to 20 knots,
decreasing to near 15 knots. Seas 1 to 2 feet, except 2 to 3 feet
west of the Marquesas Keys. Nearshore waters choppy, becoming a
moderate chop. Isolated showers.

$$

GMZ042>044-222045-
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-
1031 AM EDT Tue Apr 22 2025

...SMALL CRAFT SHOULD EXERCISE CAUTION UNTIL WINDS DECREASE...

.THIS AFTERNOON...East to southeast winds 15 to 20 knots,
becoming east and decreasing to near 15 knots. Seas 3 to 4 feet,
occasionally to 6 feet, subsiding to 2 to 4 feet, occasionally to
5 feet. Nearshore waters choppy, becoming a moderate chop.
.TONIGHT...East winds 15 to 20 knots. Seas 2 to 4 feet,
occasionally to 5 feet. Nearshore waters choppy.
.WEDNESDAY...East winds near 15 knots. Seas 2 to 3 feet.
Nearshore waters a moderate chop.
.WEDNESDAY NIGHT...Northeast to east winds 15 to 20 knots. Seas
2 to 4 feet, occasionally to 5 feet. Nearshore waters choppy.
.THURSDAY...Northeast to east winds 15 to 20 knots. Seas 2 to
4 feet, occasionally to 5 feet. Nearshore waters choppy. Isolated
showers.
.THURSDAY NIGHT...Northeast to east winds near 20 knots,
decreasing to 15 to 20 knots. Seas 3 to 4 feet, occasionally to 5
feet. Nearshore waters rough, becoming choppy. Isolated showers.
.FRIDAY...Northeast to east winds 15 to 20 knots. Seas 3 to 4
feet, occasionally to 5 feet. Nearshore waters choppy. Isolated
showers.
.FRIDAY NIGHT...East winds 15 to 20 knots, becoming northeast to
east and decreasing to near 15 knots. Seas 2 to 4 feet,
occasionally to 5 feet. Nearshore waters choppy, becoming a
moderate chop. Isolated showers.
.SATURDAY...Northeast to east winds near 15 knots, increasing to
15 to 20 knots. Seas 2 to 4 feet, occasionally to 5 feet.
Nearshore waters a moderate chop, becoming choppy. Isolated
showers.
.SATURDAY NIGHT...Northeast to east winds 15 to 20 knots,
decreasing to near 15 knots. Seas 2 to 4 feet, occasionally to 5
feet. Nearshore waters choppy, becoming a moderate chop. Isolated
showers.

$$

GMZ052>055-072>075-222045-
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-
1031 AM EDT Tue Apr 22 2025

...SMALL CRAFT SHOULD EXERCISE CAUTION UNTIL WINDS DECREASE...

.THIS AFTERNOON...East to southeast winds 15 to 20 knots,
becoming east and decreasing to near 15 knots. Seas 3 to 5 feet,
occasionally to 6 feet, subsiding to 3 to 4 feet, occasionally to
5 feet. Wave Detail: East to southeast 5 feet at 6 seconds.
.TONIGHT...East winds 15 to 20 knots. Seas 3 to 5 feet,
occasionally to 6 feet. Wave Detail: East 4 feet at 5 seconds.
.WEDNESDAY...East winds near 15 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Wave Detail: East 4 feet at 5 seconds.
.WEDNESDAY NIGHT...Northeast to east winds 15 to 20 knots. Seas
3 to 5 feet, occasionally to 6 feet.
.THURSDAY...Northeast to east winds 15 to 20 knots. Seas 4 to
5 feet, occasionally to 6 feet. Isolated showers.
.THURSDAY NIGHT...Northeast to east winds near 20 knots. Seas
5 to 6 feet, occasionally to 8 feet. Isolated showers.
.FRIDAY AND FRIDAY NIGHT...Northeast to east winds 15 to 20
knots. Seas 4 to 6 feet, occasionally to 8 feet. Isolated
showers.
.SATURDAY...Northeast to east winds near 15 knots. Seas 3 to
5 feet, occasionally to 6 feet. Isolated showers.
.SATURDAY NIGHT...Northeast to east winds 15 to 20 knots. Seas
4 to 5 feet, occasionally to 6 feet. Isolated showers.

$$

GMZ033-034-222045-
Gulf of America from East Cape Sable to Chokoloskee 20 to 60 NM
out and beyond 5 fathoms-
Gulf of America including Dry Tortugas and Rebecca Shoal Channel-
1031 AM EDT Tue Apr 22 2025

...SMALL CRAFT SHOULD EXERCISE CAUTION UNTIL WINDS DECREASE...

.THIS AFTERNOON...East to southeast winds 15 to 20 knots,
decreasing to 10 to 15 knots. Seas 2 to 4 feet, occasionally to 5
feet, subsiding to 2 to 3 feet. Wave Detail: East to southeast 3
feet at 4 seconds.
.TONIGHT...East winds 10 to 15 knots, increasing to near 15 knots.
Seas 2 to 3 feet. Wave Detail: East 3 feet at 4 seconds.
.WEDNESDAY...East to southeast winds 10 to 15 knots. Seas 2 to
3 feet. Wave Detail: East 3 feet at 4 seconds.
.WEDNESDAY NIGHT...East winds 10 to 15 knots, increasing to 15 to
20 knots after midnight. Seas 2 to 3 feet, building to 2 to 4
feet, occasionally to 5 feet.
.THURSDAY...Northeast to east winds near 15 knots, decreasing to 10
to 15 knots. Seas 2 to 4 feet, occasionally to 5 feet, subsiding
to 2 to 3 feet.
.THURSDAY NIGHT...Northeast to east winds near 15 knots,
increasing to 15 to 20 knots. Seas 2 to 3 feet, building to 2 to
4 feet, occasionally to 5 feet. Isolated showers.
.FRIDAY...Northeast to east winds 15 to 20 knots, becoming east.
Seas 3 to 4 feet, occasionally to 5 feet. Isolated showers.
.FRIDAY NIGHT...East winds near 15 knots, becoming northeast to
east. Seas subsiding to 2 to 3 feet.
.SATURDAY...Northeast to east winds 10 to 15 knots. Seas 1 to 3
feet.
.SATURDAY NIGHT...Northeast to east winds 10 to 15 knots. Seas 1
to 3 feet. Isolated showers.

$$

AP/MJV