805
FZUS52 KKEY 200224
CWFKEY

Coastal Waters Forecast for the Florida Keys
National Weather Service Key West FL
1024 PM EDT Sat Apr 19 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.

GMZ005-200830-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
1024 PM EDT Sat Apr 19 2025

.SYNOPSIS...Strong easterlies will remain in place through Sunday
night, as expansive high pressure continues to dominate the
synoptic pattern for the Florida Keys. As the high weakens,
breezes will slacken beginning Monday, but marine hazard headlines
will likely continue due to occasional fresh breezes.

The Approximate Shoreward Edge of the Gulf Stream as of April 16...

30 NM South of Dry Tortugas Light...on Loggerhead Key.
 8 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
 5 NM South of Sand Key Light...off Key West.
 9 NM South of Looe Key...off Big Pine Key.
13 NM South of Sombrero Key Light...off Marathon.
15 NM Southeast of Alligator Reef Light...off Islamorada.
14 NM Southeast of Molasses Reef Light...off Key Largo.
12 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.

$$

GMZ031-200830-
Florida Bay including Barnes Sound, Blackwater Sound, and
Buttonwood Sound-
1024 PM EDT Sat Apr 19 2025

...SMALL CRAFT ADVISORY IN EFFECT...

.OVERNIGHT...East winds near 20 knots. Bay waters rough.
.SUNDAY...East winds near 20 knots. Bay waters rough.
.SUNDAY NIGHT...East winds near 20 knots, decreasing to 15 to 20
knots. Bay waters rough, becoming choppy.
.MONDAY...East winds 15 to 20 knots, decreasing to near 15 knots.
Bay waters choppy, becoming a moderate chop.
.MONDAY NIGHT AND TUESDAY...East winds near 15 knots. Bay waters
a moderate chop.
.TUESDAY NIGHT AND WEDNESDAY...East winds near 15 knots. Bay
waters a moderate chop.
.WEDNESDAY NIGHT THROUGH THURSDAY NIGHT...East winds 15 to 20
knots. Bay waters choppy. Isolated showers.

$$

GMZ032-035-200830-
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-
1024 PM EDT Sat Apr 19 2025

...SMALL CRAFT ADVISORY IN EFFECT...

.OVERNIGHT...East winds near 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 rough.
.SUNDAY...East winds near 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 rough.
.SUNDAY NIGHT...East winds near 20 knots, decreasing to 15 to 20
knots. Seas 2 to 3 feet, except 4 to 5 feet, occasionally to 6
feet west of the Marquesas Keys. Nearshore waters rough, becoming
choppy.
.MONDAY...East to southeast winds 15 to 20 knots, decreasing to
near 15 knots. Seas 2 to 3 feet, except subsiding to 3 to 4 feet,
occasionally to 5 feet west of the Marquesas Keys. Nearshore
waters choppy, becoming a moderate chop.
.MONDAY NIGHT...East winds near 15 knots. Seas subsiding to 1 to
2 feet, except subsiding to 2 to 3 feet west of the Marquesas Keys.
Nearshore waters a moderate chop.
.TUESDAY...East to southeast 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.
.TUESDAY NIGHT AND 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. Isolated showers.
.WEDNESDAY NIGHT...East winds increasing to 15 to 20 knots. Seas
building to 2 to 3 feet, except building to 3 to 4 feet,
occasionally to 5 feet west of the Marquesas Keys. Nearshore
waters becoming choppy.
.THURSDAY AND THURSDAY NIGHT...East winds 15 to 20 knots. Seas 2
to 3 feet, except 3 to 4 feet, occasionally to 5 feet west of the
Marquesas Keys. Nearshore waters choppy. Isolated showers.

$$

GMZ042>044-200830-
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-
1024 PM EDT Sat Apr 19 2025

...SMALL CRAFT ADVISORY IN EFFECT...

.OVERNIGHT...East winds 20 to 25 knots. Seas 4 to 7 feet,
occasionally to 9 feet. Nearshore waters very rough.
.SUNDAY...East winds 20 to 25 knots, decreasing to near 20 knots.
Seas 4 to 7 feet, occasionally to 9 feet. Nearshore waters very
rough, becoming rough.
.SUNDAY NIGHT...East winds near 20 knots, decreasing to 15 to 20
knots. Seas subsiding to 3 to 5 feet, occasionally to 6 feet,
except subsiding to 4 to 6 feet, occasionally to 8 feet west of
Cosgrove Shoal Light. Nearshore waters rough, becoming choppy.
.MONDAY...East winds 15 to 20 knots. Seas 3 to 5 feet,
occasionally to 6 feet. Nearshore waters choppy.
.MONDAY NIGHT...East winds 15 to 20 knots, decreasing to near 15
knots. Seas subsiding to 2 to 4 feet, occasionally to 5 feet.
Nearshore waters choppy, becoming a moderate chop.
.TUESDAY...East to southeast winds near 15 knots. Seas 2 to 4
feet, occasionally to 5 feet. Nearshore waters a moderate chop.
Isolated showers.
.TUESDAY NIGHT...East winds 15 to 20 knots. Seas 2 to 4 feet,
occasionally to 5 feet. Nearshore waters choppy. Isolated
showers.
.WEDNESDAY...East winds near 15 knots. Seas 2 to 4 feet,
occasionally to 5 feet. Nearshore waters a moderate chop.
Isolated showers.
.WEDNESDAY NIGHT THROUGH THURSDAY NIGHT...East winds 15 to 20
knots. Seas 3 to 5 feet, occasionally to 6 feet. Nearshore waters
choppy. Isolated showers.

$$

GMZ052>055-072>075-200830-
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-
1024 PM EDT Sat Apr 19 2025

...SMALL CRAFT ADVISORY IN EFFECT...

.OVERNIGHT...East winds 20 to 25 knots. Seas 7 to 9 feet,
occasionally to 11 feet. Wave Detail: East 8 feet at 7 seconds.
.SUNDAY...East winds 20 to 25 knots, decreasing to near 20 knots.
Seas subsiding to 5 to 8 feet, occasionally to 10 feet. Wave
Detail: East 8 feet at 7 seconds.
.SUNDAY NIGHT...East winds near 20 knots, decreasing to 15 to 20
knots. Seas 5 to 8 feet, occasionally to 10 feet. Wave Detail:
East 8 feet at 7 seconds.
.MONDAY AND MONDAY NIGHT...East winds 15 to 20 knots. Seas 5 to 7
feet, occasionally to 9 feet.
.TUESDAY...East winds 15 to 20 knots. Seas 4 to 6 feet,
occasionally to 8 feet. Isolated showers.
.TUESDAY NIGHT...East winds 15 to 20 knots. Seas 4 to 6 feet,
occasionally to 8 feet. Isolated showers.
.WEDNESDAY...East winds near 15 knots. Seas 4 to 6 feet,
occasionally to 8 feet. Isolated showers.
.WEDNESDAY NIGHT THROUGH THURSDAY NIGHT...East winds 15 to 20
knots. Seas 5 to 7 feet, occasionally to 9 feet. Isolated showers.

$$

GMZ033-034-200830-
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-
1024 PM EDT Sat Apr 19 2025

...SMALL CRAFT ADVISORY IN EFFECT...

.OVERNIGHT...East winds near 20 knots. Seas 4 to 6 feet,
occasionally to 8 feet. Wave Detail: East 5 feet at 5 seconds.
.SUNDAY...East to southeast winds near 20 knots. Seas 4 to 6
feet, occasionally to 8 feet. Wave Detail: East 5 feet at 5
seconds.
.SUNDAY NIGHT...East winds near 20 knots, decreasing to 15 to 20
knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: East
5 feet at 5 seconds.
.MONDAY...East to southeast winds 15 to 20 knots. Seas 3 to
5 feet, occasionally to 6 feet.
.MONDAY NIGHT...East winds near 15 knots. Seas 2 to 4 feet,
occasionally to 5 feet.
.TUESDAY...East to southeast winds 10 to 15 knots. Seas 2 to
4 feet, occasionally to 5 feet. Isolated showers.
.TUESDAY NIGHT AND WEDNESDAY...East to southeast winds near 15
knots. Seas 2 to 4 feet, occasionally to 5 feet.
.WEDNESDAY NIGHT THROUGH THURSDAY NIGHT...East to southeast winds 15
to 20 knots. Seas 2 to 4 feet, occasionally to 5 feet.

$$

BT/DP