566
FZUS52 KKEY 262018
CWFKEY

Coastal Waters Forecast for the Florida Keys
National Weather Service Key West FL
418 PM EDT Sat Apr 26 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.

GMZ005-270230-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
418 PM EDT Sat Apr 26 2025

.SYNOPSIS...High pressure centered to the southeast of New England
will support moderate easterly breezes through the weekend as it
meanders east. A second area of high pressure will push eastward
from the Mid- Atlantic into the western North Atlantic early next
week, helping to reinforce the stagnant, mainly dry synoptic
pattern and easterly breezes.

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.

$$

GMZ031-270230-
Florida Bay including Barnes Sound, Blackwater Sound, and
Buttonwood Sound-
418 PM EDT Sat Apr 26 2025

.TONIGHT...Northeast to east winds near 15 knots, decreasing to
10 to 15 knots. Bay waters a moderate chop, becoming a light to
moderate chop.
.SUNDAY...East winds near 10 knots, increasing to 10 to 15 knots.
Bay waters a light chop, becoming a light to moderate chop.
.SUNDAY NIGHT...East winds 10 to 15 knots. Bay waters a light to
moderate chop.
.MONDAY...East winds 10 to 15 knots, increasing to near 15 knots.
Bay waters a light to moderate chop, becoming a moderate chop.
.MONDAY NIGHT...Northeast to east winds 15 to 20 knots. Bay
waters choppy. Isolated showers.
.TUESDAY...Northeast to east winds near 15 knots. Bay waters a
moderate chop. Isolated showers.
.TUESDAY NIGHT...Northeast to east winds 15 to 20 knots. Bay
waters choppy. Isolated showers.
.WEDNESDAY...Northeast to east winds near 15 knots, increasing to
15 to 20 knots. Bay waters a moderate chop, becoming choppy.
Isolated showers.
.WEDNESDAY NIGHT...East winds 15 to 20 knots. Bay waters choppy.
Isolated showers.
.THURSDAY AND THURSDAY NIGHT...East to southeast winds near 15
knots. Bay waters a moderate chop. Isolated showers.

$$

GMZ032-035-270230-
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-
418 PM EDT Sat Apr 26 2025

.TONIGHT...East winds near 15 knots, decreasing to 10 to 15
knots. Seas 1 to 2 feet. Nearshore waters a moderate chop,
becoming a light to moderate chop.
.SUNDAY AND SUNDAY NIGHT...East winds 10 to 15 knots. Seas 1 to 2
feet. Nearshore waters a light to moderate chop.
.MONDAY...East winds 10 to 15 knots, increasing to near 15 knots.
Seas 1 to 2 feet. Nearshore waters a light to moderate chop,
becoming a moderate chop.
.MONDAY NIGHT...East winds 15 to 20 knots. Seas 1 to 2 feet,
except building to 2 to 3 feet west of the Marquesas Keys.
Nearshore waters choppy. Isolated showers.
.TUESDAY...East winds near 15 knots. Seas 1 to 2 feet. Nearshore
waters a moderate chop. Isolated showers.
.TUESDAY NIGHT...East winds 15 to 20 knots. Seas 1 to 2 feet,
except 2 to 3 feet west of the Marquesas Keys. Nearshore waters
choppy. Isolated showers.
.WEDNESDAY...East winds 15 to 20 knots. Seas 1 to 3 feet, except
around 3 feet west of the Marquesas Keys. Nearshore waters choppy.
Isolated showers.
.WEDNESDAY NIGHT...East winds 15 to 20 knots. Seas 2 to 3 feet,
except around 3 feet west of the Marquesas Keys. Nearshore waters
choppy. Isolated showers.
.THURSDAY AND THURSDAY NIGHT...East to southeast 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.

$$

GMZ042>044-270230-
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 PM EDT Sat Apr 26 2025

.TONIGHT...East winds near 15 knots, decreasing to 10 to 15 knots.
Seas 2 to 3 feet. Nearshore waters a moderate chop, becoming a
light to moderate chop.
.SUNDAY AND SUNDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 3
feet. Nearshore waters a light to moderate chop.
.MONDAY...East winds 10 to 15 knots, increasing to near 15 knots.
Seas 2 to 3 feet. Nearshore waters a light to moderate chop,
becoming a moderate chop.
.MONDAY NIGHT AND TUESDAY...East winds 15 to 20 knots. Seas 2 to
4 feet, occasionally to 5 feet. Nearshore waters choppy. Isolated
showers.
.TUESDAY NIGHT...Northeast to east winds 15 to 20 knots. Seas
2 to 4 feet, occasionally to 5 feet. Nearshore waters choppy.
Isolated showers.
.WEDNESDAY...East winds 15 to 20 knots. Seas 2 to 4 feet,
occasionally to 5 feet. Nearshore waters choppy. Isolated
showers.
.WEDNESDAY NIGHT...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.
.THURSDAY AND THURSDAY NIGHT...East to southeast winds near 15
knots. Seas 2 to 4 feet, occasionally to 5 feet. Nearshore waters
a moderate chop. Isolated showers.

$$

GMZ052>055-072>075-270230-
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 PM EDT Sat Apr 26 2025

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

$$

GMZ033-034-270230-
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-
418 PM EDT Sat Apr 26 2025

.TONIGHT...East winds 10 to 15 knots. Seas 1 to 3 feet. Wave
Detail: East 2 feet at 4 seconds.
.SUNDAY...East winds near 10 knots. Seas 1 to 3 feet. Wave
Detail: East 2 feet at 4 seconds.
.SUNDAY NIGHT...Northeast to east winds near 10 knots, increasing
to 10 to 15 knots. Seas 1 to 2 feet. Wave Detail: East 2 feet at
3 seconds.
.MONDAY...East winds 10 to 15 knots. Seas 1 to 2 feet.
.MONDAY NIGHT...East winds near 15 knots, increasing to 15 to 20
knots. Seas building to 2 to 3 feet. Isolated showers.
.TUESDAY...East winds near 15 knots, decreasing to 10 to 15
knots. Seas 2 to 3 feet. Isolated showers.
.TUESDAY NIGHT...East winds increasing to 15 to 20 knots. Seas 2
to 4 feet, occasionally to 5 feet. Isolated showers.
.WEDNESDAY...East winds near 15 knots. Seas 2 to 3 feet. Isolated
showers.
.WEDNESDAY NIGHT...East to southeast winds 15 to 20 knots,
decreasing to near 15 knots. Seas 2 to 4 feet, occasionally to 5
feet. Isolated showers.
.THURSDAY AND THURSDAY NIGHT...East to southeast winds 10 to 15
knots. Seas 2 to 3 feet. Isolated showers.

$$

JAM