FZUS52 KKEY 031419
CWFKEY
Coastal Waters Forecast for the Florida Keys
National Weather Service Key West FL
1019 AM EDT Fri Jul 3 2026
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.
GMZ005-040230-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
1019 AM EDT Fri Jul 3 2026
.SYNOPSIS...Generally light east to southeast breezes will become
variable at times across the Keys waters. Breezes will lull
during the afternoon and peak overnight. Any active weather over
the marine zones will largely be limited to possible afternoon
nearshore cloudlines interacting with any boundaries pushing off
the South Florida Mainland through the evening hours. High
pressure will gradually build back across the Florida Keys coastal
waters over the weekend. This will support generally light to
gentle east to southeast breezes resuming across the Keys marine
zones.
The Approximate Shoreward Edge of the Gulf Stream as of June 28,
2026...
33 NM South of Dry Tortugas Light...on Loggerhead Key.
8 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
7 NM South of Sand Key Light...off Key West.
11 NM South of Looe Key...off Big Pine Key.
12 NM Southeast of Sombrero Key Light...off Marathon.
7 NM Southeast of Alligator Reef Light...off Islamorada.
2 NM Southeast of Molasses Reef Light...off Key Largo.
1 NM Southeast of Carysfort Reef Light...off Ocean Reef.
Gulf Stream Information Courtesy of the National Weather Service in
Key West, using data from RTOFS and NASA SPoRT SST.
$$
GMZ031-040230-
Florida Bay including Barnes Sound, Blackwater Sound, and
Buttonwood Sound-
1019 AM EDT Fri Jul 3 2026
.THIS AFTERNOON...East to southeast winds near 5 knots. Bay
waters smooth. A chance of showers and thunderstorms.
.TONIGHT...East to southeast winds 5 to 10 knots. Bay waters
smooth to a light chop. A chance of showers and thunderstorms.
.SATURDAY...Southeast to south winds near 5 knots. Bay waters
smooth. A chance of showers and thunderstorms.
.SATURDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters
smooth to a light chop. A slight chance of showers and
thunderstorms.
.SUNDAY...Southeast winds near 5 knots. Bay waters smooth. A
slight chance of showers and thunderstorms.
.SUNDAY NIGHT...Southeast winds near 5 knots, increasing to 5 to
10 knots. Bay waters smooth, becoming smooth to a light chop. A
slight chance of showers and thunderstorms.
.MONDAY...Southeast winds 5 to 10 knots. Bay waters smooth to a
light chop. A chance of showers and thunderstorms.
.MONDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters smooth
to a light chop.
.TUESDAY...East to southeast winds 5 to 10 knots. Bay waters
smooth to a light chop. A chance of showers and thunderstorms.
.TUESDAY NIGHT...East to southeast winds 5 to 10 knots. Bay
waters smooth to a light chop. A slight chance of showers.
$$
GMZ032-035-040230-
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-
1019 AM EDT Fri Jul 3 2026
.THIS AFTERNOON...East to southeast winds near 5 knots. Seas 1
foot or less this. Nearshore waters smooth. A slight chance of
showers and thunderstorms.
.TONIGHT...East to southeast winds 5 to 10 knots. Seas 1 foot or
less. Nearshore waters smooth to a light chop. A chance of
showers and thunderstorms.
.SATURDAY...Southeast winds near 5 knots. Seas 1 foot or less.
Nearshore waters smooth. A chance of showers and thunderstorms.
.SATURDAY NIGHT...Southeast winds 5 to 10 knots. Seas 1 foot or
less. Nearshore waters smooth to a light chop. A chance of
showers and thunderstorms.
.SUNDAY...Southeast winds near 5 knots. Seas 1 foot or less.
Nearshore waters smooth. A slight chance of showers and
thunderstorms.
.SUNDAY NIGHT...Southeast winds 5 to 10 knots. Seas 1 foot or
less. Nearshore waters smooth to a light chop. A slight chance of
showers and thunderstorms.
.MONDAY...Southeast winds 5 to 10 knots. Seas 1 foot or less.
Nearshore waters smooth to a light chop. A slight chance of
showers and thunderstorms.
.MONDAY NIGHT...East to southeast winds 5 to 10 knots. Seas
1 foot or less. Nearshore waters smooth to a light chop. A slight
chance of showers.
.TUESDAY...East to southeast winds near 5 knots. Seas 1 foot or
less. Nearshore waters smooth. A slight chance of showers and
thunderstorms.
.TUESDAY NIGHT...East to southeast winds 5 to 10 knots. Seas
around 1 foot. Nearshore waters smooth to a light chop. A slight
chance of showers and thunderstorms.
$$
GMZ042>044-040230-
Hawk Channel from Ocean Reef to Craig Key out to the reef-
Hawk Channel from Craig Key to west end of Seven Mile Bridge out
to the reef-
Hawk Channel from west end of Seven Mile Bridge to Halfmoon Shoal
out to the reef-
1019 AM EDT Fri Jul 3 2026
.THIS AFTERNOON...East to southeast winds near 5 knots. Seas
around 1 foot. Nearshore waters smooth. A slight chance of showers
and thunderstorms.
.TONIGHT...East to southeast winds 5 to 10 knots. Seas around
1 foot. Nearshore waters smooth to a light chop. A chance of
showers and thunderstorms.
.SATURDAY...East to southeast winds near 5 knots. Seas around
1 foot. Nearshore waters smooth. A chance of showers and
thunderstorms.
.SATURDAY NIGHT...East to southeast winds 5 to 10 knots. Seas
1 to 2 feet. Nearshore waters smooth to a light chop. A slight
chance of showers and thunderstorms.
.SUNDAY...Southeast winds near 5 knots. Seas 1 to 2 feet.
Nearshore waters smooth. A slight chance of showers and
thunderstorms.
.SUNDAY NIGHT...Southeast winds 5 to 10 knots. Seas 1 to 2 feet.
Nearshore waters smooth to a light chop. A slight chance of
showers and thunderstorms.
.MONDAY...Southeast winds 5 to 10 knots. Seas around 1 foot.
Nearshore waters smooth to a light chop. A slight chance of
showers and thunderstorms.
.MONDAY NIGHT...East to southeast winds 5 to 10 knots. Seas
around 1 foot. Nearshore waters smooth to a light chop.
.TUESDAY...East to southeast winds 5 to 10 knots. Seas around
1 foot. Nearshore waters smooth to a light chop. A slight chance
of showers and thunderstorms.
.TUESDAY NIGHT...East to southeast winds 5 to 10 knots. Seas 1 to
2 feet. Nearshore waters smooth to a light chop. A slight chance
of showers and thunderstorms.
$$
GMZ052>055-072>075-040230-
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-
1019 AM EDT Fri Jul 3 2026
.THIS AFTERNOON...East to southeast winds 5 to 10 knots, becoming
east. Seas 1 to 2 feet. Wave Detail: East to southeast 1 foot at
4 seconds. A slight chance of showers and thunderstorms.
.TONIGHT...East to southeast winds 5 to 10 knots. Seas 1 to
2 feet. Wave Detail: East 1 foot at 4 seconds. A chance of
showers and thunderstorms.
.SATURDAY...East to southeast winds 5 to 10 knots. Seas 1 to
2 feet. Wave Detail: East to southeast 1 foot at 4 seconds. A
slight chance of showers and thunderstorms.
.SATURDAY NIGHT...East to southeast winds 5 to 10 knots. Seas
1 to 2 feet. A slight chance of showers and thunderstorms.
.SUNDAY...Southeast winds 5 to 10 knots. Seas 1 to 2 feet. A
slight chance of showers and thunderstorms.
.SUNDAY NIGHT...Southeast winds 5 to 10 knots. Seas 1 to 2 feet.
A slight chance of showers and thunderstorms.
.MONDAY...Southeast winds 5 to 10 knots. Seas 1 to 2 feet. A
slight chance of showers and thunderstorms.
.MONDAY NIGHT...East to southeast winds 5 to 10 knots. Seas 1 to
2 feet. A slight chance of showers.
.TUESDAY...East to southeast winds 5 to 10 knots. Seas 1 to
2 feet. A slight chance of showers and thunderstorms.
.TUESDAY NIGHT...East winds near 10 knots. Seas around 2 feet. A
slight chance of showers and thunderstorms.
$$
GMZ033-034-040230-
Gulf of America from East Cape Sable to Chokoloskee 20 to 60 NM
out and beyond 5 fathoms-
Gulf of America including Dry Tortugas and Rebecca Shoal Channel-
1019 AM EDT Fri Jul 3 2026
.THIS AFTERNOON...East to southeast winds near 5 knots, becoming
variable at times. Seas 1 foot or less. A slight chance of showers
and thunderstorms.
.TONIGHT...Variable winds near 5 knots, becoming southeast. Seas
1 foot or less. A chance of showers and thunderstorms.
.SATURDAY...Southeast winds near 5 knots, becoming east. Seas 1
foot or less. A chance of showers and thunderstorms.
.SATURDAY NIGHT...East to southeast winds near 5 knots. Seas 1
foot or less. A chance of showers and thunderstorms.
.SUNDAY...Southeast winds near 5 knots. Seas around 1 foot. A
slight chance of showers and thunderstorms.
.SUNDAY NIGHT...Southeast winds 5 to 10 knots. Seas around
1 foot. A slight chance of showers and thunderstorms.
.MONDAY...Southeast to south winds near 5 knots. Seas around
1 foot. A slight chance of showers and thunderstorms.
.MONDAY NIGHT...East to southeast winds near 5 knots. Seas 1 foot
or less. A slight chance of showers and thunderstorms.
.TUESDAY...East to southeast winds near 5 knots. Seas around
1 foot. A slight chance of showers and thunderstorms.
.TUESDAY NIGHT...East winds near 5 knots. Seas around 1 foot. A
slight chance of showers and thunderstorms.
$$
CWFKEY
Coastal Waters Forecast for the Florida Keys
National Weather Service Key West FL
1019 AM EDT Fri Jul 3 2026
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.
GMZ005-040230-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
1019 AM EDT Fri Jul 3 2026
.SYNOPSIS...Generally light east to southeast breezes will become
variable at times across the Keys waters. Breezes will lull
during the afternoon and peak overnight. Any active weather over
the marine zones will largely be limited to possible afternoon
nearshore cloudlines interacting with any boundaries pushing off
the South Florida Mainland through the evening hours. High
pressure will gradually build back across the Florida Keys coastal
waters over the weekend. This will support generally light to
gentle east to southeast breezes resuming across the Keys marine
zones.
The Approximate Shoreward Edge of the Gulf Stream as of June 28,
2026...
33 NM South of Dry Tortugas Light...on Loggerhead Key.
8 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
7 NM South of Sand Key Light...off Key West.
11 NM South of Looe Key...off Big Pine Key.
12 NM Southeast of Sombrero Key Light...off Marathon.
7 NM Southeast of Alligator Reef Light...off Islamorada.
2 NM Southeast of Molasses Reef Light...off Key Largo.
1 NM Southeast of Carysfort Reef Light...off Ocean Reef.
Gulf Stream Information Courtesy of the National Weather Service in
Key West, using data from RTOFS and NASA SPoRT SST.
$$
GMZ031-040230-
Florida Bay including Barnes Sound, Blackwater Sound, and
Buttonwood Sound-
1019 AM EDT Fri Jul 3 2026
.THIS AFTERNOON...East to southeast winds near 5 knots. Bay
waters smooth. A chance of showers and thunderstorms.
.TONIGHT...East to southeast winds 5 to 10 knots. Bay waters
smooth to a light chop. A chance of showers and thunderstorms.
.SATURDAY...Southeast to south winds near 5 knots. Bay waters
smooth. A chance of showers and thunderstorms.
.SATURDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters
smooth to a light chop. A slight chance of showers and
thunderstorms.
.SUNDAY...Southeast winds near 5 knots. Bay waters smooth. A
slight chance of showers and thunderstorms.
.SUNDAY NIGHT...Southeast winds near 5 knots, increasing to 5 to
10 knots. Bay waters smooth, becoming smooth to a light chop. A
slight chance of showers and thunderstorms.
.MONDAY...Southeast winds 5 to 10 knots. Bay waters smooth to a
light chop. A chance of showers and thunderstorms.
.MONDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters smooth
to a light chop.
.TUESDAY...East to southeast winds 5 to 10 knots. Bay waters
smooth to a light chop. A chance of showers and thunderstorms.
.TUESDAY NIGHT...East to southeast winds 5 to 10 knots. Bay
waters smooth to a light chop. A slight chance of showers.
$$
GMZ032-035-040230-
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-
1019 AM EDT Fri Jul 3 2026
.THIS AFTERNOON...East to southeast winds near 5 knots. Seas 1
foot or less this. Nearshore waters smooth. A slight chance of
showers and thunderstorms.
.TONIGHT...East to southeast winds 5 to 10 knots. Seas 1 foot or
less. Nearshore waters smooth to a light chop. A chance of
showers and thunderstorms.
.SATURDAY...Southeast winds near 5 knots. Seas 1 foot or less.
Nearshore waters smooth. A chance of showers and thunderstorms.
.SATURDAY NIGHT...Southeast winds 5 to 10 knots. Seas 1 foot or
less. Nearshore waters smooth to a light chop. A chance of
showers and thunderstorms.
.SUNDAY...Southeast winds near 5 knots. Seas 1 foot or less.
Nearshore waters smooth. A slight chance of showers and
thunderstorms.
.SUNDAY NIGHT...Southeast winds 5 to 10 knots. Seas 1 foot or
less. Nearshore waters smooth to a light chop. A slight chance of
showers and thunderstorms.
.MONDAY...Southeast winds 5 to 10 knots. Seas 1 foot or less.
Nearshore waters smooth to a light chop. A slight chance of
showers and thunderstorms.
.MONDAY NIGHT...East to southeast winds 5 to 10 knots. Seas
1 foot or less. Nearshore waters smooth to a light chop. A slight
chance of showers.
.TUESDAY...East to southeast winds near 5 knots. Seas 1 foot or
less. Nearshore waters smooth. A slight chance of showers and
thunderstorms.
.TUESDAY NIGHT...East to southeast winds 5 to 10 knots. Seas
around 1 foot. Nearshore waters smooth to a light chop. A slight
chance of showers and thunderstorms.
$$
GMZ042>044-040230-
Hawk Channel from Ocean Reef to Craig Key out to the reef-
Hawk Channel from Craig Key to west end of Seven Mile Bridge out
to the reef-
Hawk Channel from west end of Seven Mile Bridge to Halfmoon Shoal
out to the reef-
1019 AM EDT Fri Jul 3 2026
.THIS AFTERNOON...East to southeast winds near 5 knots. Seas
around 1 foot. Nearshore waters smooth. A slight chance of showers
and thunderstorms.
.TONIGHT...East to southeast winds 5 to 10 knots. Seas around
1 foot. Nearshore waters smooth to a light chop. A chance of
showers and thunderstorms.
.SATURDAY...East to southeast winds near 5 knots. Seas around
1 foot. Nearshore waters smooth. A chance of showers and
thunderstorms.
.SATURDAY NIGHT...East to southeast winds 5 to 10 knots. Seas
1 to 2 feet. Nearshore waters smooth to a light chop. A slight
chance of showers and thunderstorms.
.SUNDAY...Southeast winds near 5 knots. Seas 1 to 2 feet.
Nearshore waters smooth. A slight chance of showers and
thunderstorms.
.SUNDAY NIGHT...Southeast winds 5 to 10 knots. Seas 1 to 2 feet.
Nearshore waters smooth to a light chop. A slight chance of
showers and thunderstorms.
.MONDAY...Southeast winds 5 to 10 knots. Seas around 1 foot.
Nearshore waters smooth to a light chop. A slight chance of
showers and thunderstorms.
.MONDAY NIGHT...East to southeast winds 5 to 10 knots. Seas
around 1 foot. Nearshore waters smooth to a light chop.
.TUESDAY...East to southeast winds 5 to 10 knots. Seas around
1 foot. Nearshore waters smooth to a light chop. A slight chance
of showers and thunderstorms.
.TUESDAY NIGHT...East to southeast winds 5 to 10 knots. Seas 1 to
2 feet. Nearshore waters smooth to a light chop. A slight chance
of showers and thunderstorms.
$$
GMZ052>055-072>075-040230-
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-
1019 AM EDT Fri Jul 3 2026
.THIS AFTERNOON...East to southeast winds 5 to 10 knots, becoming
east. Seas 1 to 2 feet. Wave Detail: East to southeast 1 foot at
4 seconds. A slight chance of showers and thunderstorms.
.TONIGHT...East to southeast winds 5 to 10 knots. Seas 1 to
2 feet. Wave Detail: East 1 foot at 4 seconds. A chance of
showers and thunderstorms.
.SATURDAY...East to southeast winds 5 to 10 knots. Seas 1 to
2 feet. Wave Detail: East to southeast 1 foot at 4 seconds. A
slight chance of showers and thunderstorms.
.SATURDAY NIGHT...East to southeast winds 5 to 10 knots. Seas
1 to 2 feet. A slight chance of showers and thunderstorms.
.SUNDAY...Southeast winds 5 to 10 knots. Seas 1 to 2 feet. A
slight chance of showers and thunderstorms.
.SUNDAY NIGHT...Southeast winds 5 to 10 knots. Seas 1 to 2 feet.
A slight chance of showers and thunderstorms.
.MONDAY...Southeast winds 5 to 10 knots. Seas 1 to 2 feet. A
slight chance of showers and thunderstorms.
.MONDAY NIGHT...East to southeast winds 5 to 10 knots. Seas 1 to
2 feet. A slight chance of showers.
.TUESDAY...East to southeast winds 5 to 10 knots. Seas 1 to
2 feet. A slight chance of showers and thunderstorms.
.TUESDAY NIGHT...East winds near 10 knots. Seas around 2 feet. A
slight chance of showers and thunderstorms.
$$
GMZ033-034-040230-
Gulf of America from East Cape Sable to Chokoloskee 20 to 60 NM
out and beyond 5 fathoms-
Gulf of America including Dry Tortugas and Rebecca Shoal Channel-
1019 AM EDT Fri Jul 3 2026
.THIS AFTERNOON...East to southeast winds near 5 knots, becoming
variable at times. Seas 1 foot or less. A slight chance of showers
and thunderstorms.
.TONIGHT...Variable winds near 5 knots, becoming southeast. Seas
1 foot or less. A chance of showers and thunderstorms.
.SATURDAY...Southeast winds near 5 knots, becoming east. Seas 1
foot or less. A chance of showers and thunderstorms.
.SATURDAY NIGHT...East to southeast winds near 5 knots. Seas 1
foot or less. A chance of showers and thunderstorms.
.SUNDAY...Southeast winds near 5 knots. Seas around 1 foot. A
slight chance of showers and thunderstorms.
.SUNDAY NIGHT...Southeast winds 5 to 10 knots. Seas around
1 foot. A slight chance of showers and thunderstorms.
.MONDAY...Southeast to south winds near 5 knots. Seas around
1 foot. A slight chance of showers and thunderstorms.
.MONDAY NIGHT...East to southeast winds near 5 knots. Seas 1 foot
or less. A slight chance of showers and thunderstorms.
.TUESDAY...East to southeast winds near 5 knots. Seas around
1 foot. A slight chance of showers and thunderstorms.
.TUESDAY NIGHT...East winds near 5 knots. Seas around 1 foot. A
slight chance of showers and thunderstorms.
$$