FZUS52 KKEY 091452
CWFKEY
Coastal Waters Forecast for the Florida Keys
National Weather Service Key West FL
1052 AM EDT Sat May 9 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.
GMZ005-100300-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
1052 AM EDT Sat May 9 2026
.SYNOPSIS...Gentle to moderate breezes will start out the weekend
while high pressure over the western Atlantic dominates the
weather pattern. Light to gentle breezes with periods of variable
winds are expected by the start of the work week. Deep layers of
dry air over South Florida will keep rain and thunder chances low
through the weekend and early next week. A lingering frontal
boundary next week may be able to slightly increase rain chances.
The Approximate Shoreward Edge of the Gulf Stream as of May 05...
23 NM South of Dry Tortugas Light...on Loggerhead Key.
13 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
12 NM South of Sand Key Light...off Key West.
14 NM South of Looe Key...off Big Pine Key.
14 NM Southeast of Sombrero Key Light...off Marathon.
10 NM Southeast of Alligator Reef Light...off Islamorada.
8 NM Southeast of Molasses Reef Light...off Key Largo.
7 NM Southeast 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 and RTOFS.
$$
GMZ031-100300-
Florida Bay including Barnes Sound, Blackwater Sound, and
Buttonwood Sound-
1052 AM EDT Sat May 9 2026
.THIS AFTERNOON...Southeast to south winds 5 to 10 knots. Bay
waters smooth to a light chop.
.TONIGHT...Southeast winds near 10 knots, increasing to 10 to 15
knots. Bay waters a light chop, becoming a light to moderate chop.
.SUNDAY...Southeast winds near 10 knots. Bay waters a light chop.
.SUNDAY NIGHT...East to southeast winds 10 to 15 knots. Bay
waters a light to moderate chop.
.MONDAY...Southeast winds 10 to 15 knots, becoming southeast to
south 5 to 10 knots. Bay waters a light to moderate chop,
becoming smooth to a light chop.
.MONDAY NIGHT...Variable winds near 5 knots. Bay waters smooth. A
slight chance of showers.
.TUESDAY...Variable winds near 5 knots. Bay waters smooth. A
chance of showers.
.TUESDAY NIGHT...North to northeast winds 5 to 10 knots. Bay
waters smooth to a light chop. A slight chance of showers.
.WEDNESDAY...Northeast to east winds near 5 knots, becoming
variable. Bay waters smooth. A slight chance of showers and
thunderstorms.
.WEDNESDAY NIGHT...Northeast winds near 5 knots. Bay waters
smooth.
$$
GMZ032-035-100300-
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-
1052 AM EDT Sat May 9 2026
.THIS AFTERNOON...Southeast winds near 10 knots. Seas 1 foot or
less. Nearshore waters a light chop.
.TONIGHT...Southeast winds near 10 knots, increasing to 10 to 15
knots. Seas around 1 foot. Nearshore waters a light chop,
becoming a light to moderate chop. A slight chance of showers.
.SUNDAY...Southeast winds near 10 knots. Seas around 1 foot.
Nearshore waters a light chop.
.SUNDAY NIGHT...East to southeast winds 10 to 15 knots. Seas
around 1 foot. Nearshore waters a light to moderate chop.
.MONDAY...Southeast winds 10 to 15 knots, becoming southeast to
south 5 to 10 knots. Seas around 1 foot. Nearshore waters a light
to moderate chop, becoming smooth to a light chop.
.MONDAY NIGHT...Variable winds near 5 knots. Seas 1 foot or less.
Nearshore waters smooth. A slight chance of showers.
.TUESDAY...Variable winds near 5 knots. Seas 1 foot or less.
Nearshore waters smooth. A slight chance of showers.
.TUESDAY NIGHT...Northwest to north winds 5 to 10 knots, becoming
northeast. Seas 1 foot or less. Nearshore waters smooth to a
light chop. A slight chance of showers.
.WEDNESDAY...Northeast to east winds near 5 knots, becoming
variable. Seas 1 foot or less. Nearshore waters smooth. A slight
chance of showers.
.WEDNESDAY NIGHT...North to northeast winds near 5 knots. Seas
1 foot or less. Nearshore waters smooth.
$$
GMZ042>044-100300-
Hawk Channel from Ocean Reef to Craig Key out to the reef-
Hawk Channel from Craig Key to west end of Seven Mile Bridge out
to the reef-
Hawk Channel from west end of Seven Mile Bridge to Halfmoon Shoal
out to the reef-
1052 AM EDT Sat May 9 2026
.THIS AFTERNOON...Southeast winds near 10 knots. Seas 1 to 2
feet. Nearshore waters a light chop.
.TONIGHT...East to southeast winds near 10 knots, increasing to 10
to 15 knots. Seas 1 to 2 feet. Nearshore waters a light chop,
becoming a light to moderate chop. A slight chance of showers.
.SUNDAY...Southeast winds near 10 knots. Seas 1 to 2 feet.
Nearshore waters a light chop.
.SUNDAY NIGHT...East to southeast winds near 10 knots, increasing
to 10 to 15 knots. Seas 1 to 2 feet, building to around 2 feet.
Nearshore waters a moderate chop, becoming a light to moderate
chop.
.MONDAY...Southeast winds 10 to 15 knots, becoming east to
southeast 5 to 10 knots. Seas 1 to 2 feet. Nearshore waters a
light to moderate chop, becoming smooth to a light chop.
.MONDAY NIGHT...Variable winds near 5 knots. Seas around 1 foot.
Nearshore waters smooth. A slight chance of showers.
.TUESDAY...Variable winds near 5 knots. Seas around 1 foot.
Nearshore waters smooth. A slight chance of showers.
.TUESDAY NIGHT...Northwest to north winds 5 to 10 knots, becoming
north to northeast. Seas around 1 foot. Nearshore waters smooth
to a light chop. A slight chance of showers.
.WEDNESDAY...Northeast to east winds near 5 knots, becoming
variable. Seas 1 foot or less. Nearshore waters smooth. A slight
chance of showers.
.WEDNESDAY NIGHT...North to northeast winds near 5 knots. Seas 1
foot or less. Nearshore waters smooth.
$$
GMZ052>055-072>075-100300-
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-
1052 AM EDT Sat May 9 2026
.THIS AFTERNOON...Southeast winds 10 to 15 knots. Seas around 2
feet. Wave Detail: East to southeast 2 feet at 4 seconds. A slight
chance of showers.
.TONIGHT...East to southeast winds 10 to 15 knots. Seas 2 to 3
feet. Wave Detail: East to southeast 2 feet at 4 seconds. A slight
chance of showers.
.SUNDAY...East to southeast winds 10 to 15 knots, decreasing to
near 10 knots. Seas subsiding to around 2 feet. Wave Detail: East
to southeast 2 feet at 5 seconds.
.SUNDAY NIGHT...East to southeast winds 10 to 15 knots. Seas 2 to
3 feet. A slight chance of showers.
.MONDAY...Southeast winds 10 to 15 knots, becoming east to
southeast near 10 knots. Seas 2 to 3 feet.
.MONDAY NIGHT...Variable winds 5 to 10 knots. Seas subsiding to 1
to 2 feet. A slight chance of showers.
.TUESDAY...Variable winds near 5 knots. Seas around 1 foot. A
slight chance of showers.
.TUESDAY NIGHT...North to northeast winds 5 to 10 knots. Seas
around 1 foot. A slight chance of showers.
.WEDNESDAY...Northeast to east winds near 5 knots. Seas around
1 foot.
.WEDNESDAY NIGHT...Northeast winds near 5 knots. Seas 1 to
2 feet.
$$
GMZ033-034-100300-
Gulf of America from East Cape Sable to Chokoloskee 20 to 60 NM
out and beyond 5 fathoms-
Gulf of America including Dry Tortugas and Rebecca Shoal Channel-
1052 AM EDT Sat May 9 2026
.THIS AFTERNOON...Southeast winds 5 to 10 knots. Seas 1 to 2
feet. Wave Detail: Southeast 2 feet at 3 seconds.
.TONIGHT...Southeast winds 5 to 10 knots. Seas around 1 foot.
Wave Detail: East to southeast 1 foot at 3 seconds. A slight
chance of showers.
.SUNDAY...Southeast winds 5 to 10 knots. Seas around 1 foot. Wave
Detail: East to southeast 1 foot at 3 seconds.
.SUNDAY NIGHT...East to southeast winds near 10 knots, increasing
to 10 to 15 knots. Seas building to 1 to 2 feet.
.MONDAY...Southeast to south winds 5 to 10 knots, becoming
variable. Seas 1 to 2 feet.
.MONDAY NIGHT...Variable winds near 5 knots. Seas 1 foot or less.
A slight chance of showers.
.TUESDAY...North winds near 5 knots. Seas 1 foot or less. A
slight chance of showers.
.TUESDAY NIGHT...North to northeast winds 5 to 10 knots, becoming
northeast. Seas around 1 foot.
.WEDNESDAY...Northeast winds near 5 knots. Seas around 1 foot.
.WEDNESDAY NIGHT...North to northeast winds 5 to 10 knots. Seas
1 to 2 feet.
$$
CWFKEY
Coastal Waters Forecast for the Florida Keys
National Weather Service Key West FL
1052 AM EDT Sat May 9 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.
GMZ005-100300-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
1052 AM EDT Sat May 9 2026
.SYNOPSIS...Gentle to moderate breezes will start out the weekend
while high pressure over the western Atlantic dominates the
weather pattern. Light to gentle breezes with periods of variable
winds are expected by the start of the work week. Deep layers of
dry air over South Florida will keep rain and thunder chances low
through the weekend and early next week. A lingering frontal
boundary next week may be able to slightly increase rain chances.
The Approximate Shoreward Edge of the Gulf Stream as of May 05...
23 NM South of Dry Tortugas Light...on Loggerhead Key.
13 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
12 NM South of Sand Key Light...off Key West.
14 NM South of Looe Key...off Big Pine Key.
14 NM Southeast of Sombrero Key Light...off Marathon.
10 NM Southeast of Alligator Reef Light...off Islamorada.
8 NM Southeast of Molasses Reef Light...off Key Largo.
7 NM Southeast 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 and RTOFS.
$$
GMZ031-100300-
Florida Bay including Barnes Sound, Blackwater Sound, and
Buttonwood Sound-
1052 AM EDT Sat May 9 2026
.THIS AFTERNOON...Southeast to south winds 5 to 10 knots. Bay
waters smooth to a light chop.
.TONIGHT...Southeast winds near 10 knots, increasing to 10 to 15
knots. Bay waters a light chop, becoming a light to moderate chop.
.SUNDAY...Southeast winds near 10 knots. Bay waters a light chop.
.SUNDAY NIGHT...East to southeast winds 10 to 15 knots. Bay
waters a light to moderate chop.
.MONDAY...Southeast winds 10 to 15 knots, becoming southeast to
south 5 to 10 knots. Bay waters a light to moderate chop,
becoming smooth to a light chop.
.MONDAY NIGHT...Variable winds near 5 knots. Bay waters smooth. A
slight chance of showers.
.TUESDAY...Variable winds near 5 knots. Bay waters smooth. A
chance of showers.
.TUESDAY NIGHT...North to northeast winds 5 to 10 knots. Bay
waters smooth to a light chop. A slight chance of showers.
.WEDNESDAY...Northeast to east winds near 5 knots, becoming
variable. Bay waters smooth. A slight chance of showers and
thunderstorms.
.WEDNESDAY NIGHT...Northeast winds near 5 knots. Bay waters
smooth.
$$
GMZ032-035-100300-
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-
1052 AM EDT Sat May 9 2026
.THIS AFTERNOON...Southeast winds near 10 knots. Seas 1 foot or
less. Nearshore waters a light chop.
.TONIGHT...Southeast winds near 10 knots, increasing to 10 to 15
knots. Seas around 1 foot. Nearshore waters a light chop,
becoming a light to moderate chop. A slight chance of showers.
.SUNDAY...Southeast winds near 10 knots. Seas around 1 foot.
Nearshore waters a light chop.
.SUNDAY NIGHT...East to southeast winds 10 to 15 knots. Seas
around 1 foot. Nearshore waters a light to moderate chop.
.MONDAY...Southeast winds 10 to 15 knots, becoming southeast to
south 5 to 10 knots. Seas around 1 foot. Nearshore waters a light
to moderate chop, becoming smooth to a light chop.
.MONDAY NIGHT...Variable winds near 5 knots. Seas 1 foot or less.
Nearshore waters smooth. A slight chance of showers.
.TUESDAY...Variable winds near 5 knots. Seas 1 foot or less.
Nearshore waters smooth. A slight chance of showers.
.TUESDAY NIGHT...Northwest to north winds 5 to 10 knots, becoming
northeast. Seas 1 foot or less. Nearshore waters smooth to a
light chop. A slight chance of showers.
.WEDNESDAY...Northeast to east winds near 5 knots, becoming
variable. Seas 1 foot or less. Nearshore waters smooth. A slight
chance of showers.
.WEDNESDAY NIGHT...North to northeast winds near 5 knots. Seas
1 foot or less. Nearshore waters smooth.
$$
GMZ042>044-100300-
Hawk Channel from Ocean Reef to Craig Key out to the reef-
Hawk Channel from Craig Key to west end of Seven Mile Bridge out
to the reef-
Hawk Channel from west end of Seven Mile Bridge to Halfmoon Shoal
out to the reef-
1052 AM EDT Sat May 9 2026
.THIS AFTERNOON...Southeast winds near 10 knots. Seas 1 to 2
feet. Nearshore waters a light chop.
.TONIGHT...East to southeast winds near 10 knots, increasing to 10
to 15 knots. Seas 1 to 2 feet. Nearshore waters a light chop,
becoming a light to moderate chop. A slight chance of showers.
.SUNDAY...Southeast winds near 10 knots. Seas 1 to 2 feet.
Nearshore waters a light chop.
.SUNDAY NIGHT...East to southeast winds near 10 knots, increasing
to 10 to 15 knots. Seas 1 to 2 feet, building to around 2 feet.
Nearshore waters a moderate chop, becoming a light to moderate
chop.
.MONDAY...Southeast winds 10 to 15 knots, becoming east to
southeast 5 to 10 knots. Seas 1 to 2 feet. Nearshore waters a
light to moderate chop, becoming smooth to a light chop.
.MONDAY NIGHT...Variable winds near 5 knots. Seas around 1 foot.
Nearshore waters smooth. A slight chance of showers.
.TUESDAY...Variable winds near 5 knots. Seas around 1 foot.
Nearshore waters smooth. A slight chance of showers.
.TUESDAY NIGHT...Northwest to north winds 5 to 10 knots, becoming
north to northeast. Seas around 1 foot. Nearshore waters smooth
to a light chop. A slight chance of showers.
.WEDNESDAY...Northeast to east winds near 5 knots, becoming
variable. Seas 1 foot or less. Nearshore waters smooth. A slight
chance of showers.
.WEDNESDAY NIGHT...North to northeast winds near 5 knots. Seas 1
foot or less. Nearshore waters smooth.
$$
GMZ052>055-072>075-100300-
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-
1052 AM EDT Sat May 9 2026
.THIS AFTERNOON...Southeast winds 10 to 15 knots. Seas around 2
feet. Wave Detail: East to southeast 2 feet at 4 seconds. A slight
chance of showers.
.TONIGHT...East to southeast winds 10 to 15 knots. Seas 2 to 3
feet. Wave Detail: East to southeast 2 feet at 4 seconds. A slight
chance of showers.
.SUNDAY...East to southeast winds 10 to 15 knots, decreasing to
near 10 knots. Seas subsiding to around 2 feet. Wave Detail: East
to southeast 2 feet at 5 seconds.
.SUNDAY NIGHT...East to southeast winds 10 to 15 knots. Seas 2 to
3 feet. A slight chance of showers.
.MONDAY...Southeast winds 10 to 15 knots, becoming east to
southeast near 10 knots. Seas 2 to 3 feet.
.MONDAY NIGHT...Variable winds 5 to 10 knots. Seas subsiding to 1
to 2 feet. A slight chance of showers.
.TUESDAY...Variable winds near 5 knots. Seas around 1 foot. A
slight chance of showers.
.TUESDAY NIGHT...North to northeast winds 5 to 10 knots. Seas
around 1 foot. A slight chance of showers.
.WEDNESDAY...Northeast to east winds near 5 knots. Seas around
1 foot.
.WEDNESDAY NIGHT...Northeast winds near 5 knots. Seas 1 to
2 feet.
$$
GMZ033-034-100300-
Gulf of America from East Cape Sable to Chokoloskee 20 to 60 NM
out and beyond 5 fathoms-
Gulf of America including Dry Tortugas and Rebecca Shoal Channel-
1052 AM EDT Sat May 9 2026
.THIS AFTERNOON...Southeast winds 5 to 10 knots. Seas 1 to 2
feet. Wave Detail: Southeast 2 feet at 3 seconds.
.TONIGHT...Southeast winds 5 to 10 knots. Seas around 1 foot.
Wave Detail: East to southeast 1 foot at 3 seconds. A slight
chance of showers.
.SUNDAY...Southeast winds 5 to 10 knots. Seas around 1 foot. Wave
Detail: East to southeast 1 foot at 3 seconds.
.SUNDAY NIGHT...East to southeast winds near 10 knots, increasing
to 10 to 15 knots. Seas building to 1 to 2 feet.
.MONDAY...Southeast to south winds 5 to 10 knots, becoming
variable. Seas 1 to 2 feet.
.MONDAY NIGHT...Variable winds near 5 knots. Seas 1 foot or less.
A slight chance of showers.
.TUESDAY...North winds near 5 knots. Seas 1 foot or less. A
slight chance of showers.
.TUESDAY NIGHT...North to northeast winds 5 to 10 knots, becoming
northeast. Seas around 1 foot.
.WEDNESDAY...Northeast winds near 5 knots. Seas around 1 foot.
.WEDNESDAY NIGHT...North to northeast winds 5 to 10 knots. Seas
1 to 2 feet.
$$