FZUS52 KKEY 040230
CWFKEY
Coastal Waters Forecast for the Florida Keys
National Weather Service Key West FL
1030 PM EDT Sat May 3 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.
GMZ005-040830-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
1030 PM EDT Sat May 3 2025
.SYNOPSIS...
Breezes will continue to slacken across our local waters overnight
and tomorrow. A Bermuda High will steadily move east, allowing
for a brief period of light to gentle breezes to continue through
Monday afternoon. Moisture will steadily climb, supporting an
increased threat for showers as well as an isolated threat for
thunderstorms beginning tonight and continuing into Monday.
Freshening easterly breezes return by Tuesday along with drier
conditions.
The Approximate Shoreward Edge of the Gulf Stream as of April
30th...
13 NM South of Dry Tortugas Light...on Loggerhead Key.
7 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
5 NM South of Sand Key Light...off Key West.
7 NM South of Looe Key...off Big Pine Key.
10 NM South of Sombrero Key Light...off Marathon.
5 NM Southeast of Alligator Reef Light...off Islamorada.
4 NM Southeast of Molasses Reef Light...off Key Largo.
3 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.
$$
GMZ031-040830-
Florida Bay including Barnes Sound, Blackwater Sound, and
Buttonwood Sound-
1030 PM EDT Sat May 3 2025
.OVERNIGHT...East to southeast winds near 10 knots, becoming
southeast to south and decreasing to 5 to 10 knots. Bay waters a
light chop, becoming smooth to a light chop. Isolated showers.
.SUNDAY...Southeast to south winds 5 to 10 knots. Bay waters
smooth to a light chop. Scattered showers and isolated
thunderstorms.
.SUNDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters smooth
to a light chop. Scattered showers and isolated thunderstorms.
.MONDAY...Southeast winds 5 to 10 knots. Bay waters smooth to a
light chop. Scattered showers.
.MONDAY NIGHT...East to southeast winds 5 to 10 knots, increasing
to near 10 knots. Bay waters smooth to a light chop, becoming a
light chop. Isolated showers.
.TUESDAY...East to southeast winds near 10 knots, increasing to 10
to 15 knots. Bay waters a light chop, becoming a light to
moderate chop. Isolated showers.
.TUESDAY NIGHT AND WEDNESDAY...East to southeast winds 10 to 15
knots. Bay waters a light to moderate chop.
.WEDNESDAY NIGHT...East winds 10 to 15 knots. Bay waters a light
to moderate chop.
.THURSDAY AND THURSDAY NIGHT...East to southeast winds near 10
knots. Bay waters a light chop.
$$
GMZ032-035-040830-
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-
1030 PM EDT Sat May 3 2025
.OVERNIGHT...East to southeast winds 10 to 15 knots, becoming
southeast to south and decreasing to near 10 knots. Seas around 1
foot, except 1 to 2 feet west of the Marquesas Keys. Nearshore
waters a light to moderate chop, becoming a light chop. Isolated
showers.
.SUNDAY...Southeast to south winds 5 to 10 knots. Seas 1 foot or
less. Nearshore waters smooth to a light chop. Scattered showers
and isolated thunderstorms.
.SUNDAY NIGHT...East to southeast winds 5 to 10 knots. Seas
1 foot or less. Nearshore waters smooth to a light chop. Scattered
showers and isolated thunderstorms.
.MONDAY...East to southeast winds 5 to 10 knots. Seas 1 foot or
less. Nearshore waters smooth to a light chop. Scattered showers.
.MONDAY NIGHT...East winds 5 to 10 knots, increasing to near 10
knots. Seas 1 foot or less, building to around 1 foot. Nearshore
waters smooth to a light chop, becoming a light chop. Isolated
showers.
.TUESDAY...East to southeast winds 10 to 15 knots. Seas around
1 foot. Nearshore waters a light to moderate chop.
.TUESDAY NIGHT...East to southeast winds increasing to near 15
knots. Seas building to 1 to 2 feet. Nearshore waters becoming a
moderate chop.
.WEDNESDAY AND WEDNESDAY NIGHT...East to southeast winds 10 to 15
knots. Seas 1 to 2 feet. Nearshore waters a light to moderate
chop.
.THURSDAY...East to southeast winds 10 to 15 knots. Seas 1 to 2
feet. Nearshore waters a light to moderate chop.
.THURSDAY NIGHT...East to southeast winds 10 to 15 knots,
increasing to near 15 knots. Seas 1 to 2 feet. West of the
Marquesas Keys, seas 1 to 2 feet, building to around 3 feet.
Nearshore waters a light to moderate chop, becoming a moderate
chop.
$$
GMZ042>044-040830-
Hawk Channel from Ocean Reef to Craig Key out to the reef-
Hawk Channel from Craig Key to west end of Seven Mile Bridge out
to the reef-
Hawk Channel from west end of Seven Mile Bridge to Halfmoon Shoal
out to the reef-
1030 PM EDT Sat May 3 2025
.OVERNIGHT...East to southeast winds 10 to 15 knots, decreasing
to near 10 knots. Seas around 2 feet. Nearshore waters a light to
moderate chop, becoming a light chop. Isolated showers.
.SUNDAY...Southeast winds near 10 knots, decreasing to 5 to 10
knots. Seas 1 to 2 feet, subsiding to around 1 foot. Nearshore
waters a light chop, becoming smooth to a light chop. Isolated
showers and thunderstorms.
.SUNDAY NIGHT...East to southeast winds 5 to 10 knots. Seas
around 1 foot. Nearshore waters smooth to a light chop. Scattered
showers and isolated thunderstorms.
.MONDAY...East to southeast winds 5 to 10 knots. Seas around
1 foot. Nearshore waters smooth to a light chop. Scattered
showers.
.MONDAY NIGHT...East winds 5 to 10 knots, increasing to near 10
knots. Seas around 1 foot, building to 1 to 2 feet. Nearshore
waters smooth to a light chop, becoming a light chop. Isolated
showers.
.TUESDAY...East to southeast winds 10 to 15 knots. Seas 1 to
2 feet. Nearshore waters a light to moderate chop.
.TUESDAY NIGHT THROUGH THURSDAY NIGHT...East to southeast winds
10 to 15 knots. Seas 2 to 3 feet. Nearshore waters a light to
moderate chop.
$$
GMZ052>055-072>075-040830-
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-
1030 PM EDT Sat May 3 2025
.OVERNIGHT...East to southeast winds 10 to 15 knots, decreasing
to near 10 knots. Seas 2 to 3 feet, subsiding to 1 to 2 feet. Wave
Detail: East to southeast 3 feet at 5 seconds. Scattered showers.
.SUNDAY...Southeast winds near 10 knots, decreasing to 5 to 10
knots. Seas 1 to 2 feet. Wave Detail: East to southeast 2 feet at
5 seconds. Isolated showers and thunderstorms.
.SUNDAY NIGHT...East to southeast winds 5 to 10 knots. Seas 1 to
2 feet. Wave Detail: East 2 feet at 5 seconds. Scattered showers
and isolated thunderstorms.
.MONDAY...East to southeast winds 5 to 10 knots, increasing to
near 10 knots. Seas 1 to 2 feet. Scattered showers.
.MONDAY NIGHT...East winds near 10 knots, increasing to 10 to 15
knots. Seas 1 to 2 feet, building to 2 to 3 feet. Isolated
showers.
.TUESDAY...East to southeast winds 10 to 15 knots, increasing to
near 15 knots. Seas 2 to 3 feet.
.TUESDAY NIGHT...East winds near 15 knots. Seas building to 2 to
4 feet, occasionally to 5 feet.
.WEDNESDAY...East to southeast winds 10 to 15 knots. Seas 2 to
4 feet, occasionally to 5 feet.
.WEDNESDAY NIGHT...East winds near 15 knots. Seas 2 to 4 feet,
occasionally to 5 feet.
.THURSDAY...East to southeast winds 10 to 15 knots. Seas 2 to
4 feet, occasionally to 5 feet.
.THURSDAY NIGHT...East to southeast winds 10 to 15 knots. Seas
2 to 4 feet, occasionally to 5 feet.
$$
GMZ033-034-040830-
Gulf of America from East Cape Sable to Chokoloskee 20 to 60 NM
out and beyond 5 fathoms-
Gulf of America including Dry Tortugas and Rebecca Shoal Channel-
1030 PM EDT Sat May 3 2025
.OVERNIGHT...Southeast winds near 10 knots, decreasing to 5 to 10
knots. Seas 1 to 2 feet, subsiding to around 1 foot. Wave Detail:
East to southeast 2 feet at 4 seconds. Isolated showers.
.SUNDAY...Southeast to south winds 5 to 10 knots. Seas around
1 foot. Wave Detail: Southeast to south 1 foot at 4 seconds.
Scattered showers and isolated thunderstorms.
.SUNDAY NIGHT...Variable winds near 5 knots, becoming east to
southeast. Seas around 1 foot. Wave Detail: East to southeast 1
foot at 3 seconds. Scattered showers and isolated thunderstorms.
.MONDAY...East to southeast winds near 5 knots, increasing to 5 to
10 knots. Seas around 1 foot. Scattered showers.
.MONDAY NIGHT...East winds 5 to 10 knots, increasing to near 10
knots. Seas around 1 foot, building to 1 to 2 feet. Isolated
showers.
.TUESDAY...East to southeast winds near 10 knots, increasing to 10
to 15 knots. Seas 1 to 2 feet, building to 2 to 3 feet. Isolated
showers.
.TUESDAY NIGHT THROUGH WEDNESDAY NIGHT...East to southeast winds
10 to 15 knots. Seas 2 to 3 feet. Isolated showers.
.THURSDAY...Southeast winds 10 to 15 knots. Seas 2 to 3 feet.
.THURSDAY NIGHT...East to southeast winds near 10 knots. Seas
2 to 3 feet. Isolated showers.
$$
MJV
CWFKEY
Coastal Waters Forecast for the Florida Keys
National Weather Service Key West FL
1030 PM EDT Sat May 3 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.
GMZ005-040830-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
1030 PM EDT Sat May 3 2025
.SYNOPSIS...
Breezes will continue to slacken across our local waters overnight
and tomorrow. A Bermuda High will steadily move east, allowing
for a brief period of light to gentle breezes to continue through
Monday afternoon. Moisture will steadily climb, supporting an
increased threat for showers as well as an isolated threat for
thunderstorms beginning tonight and continuing into Monday.
Freshening easterly breezes return by Tuesday along with drier
conditions.
The Approximate Shoreward Edge of the Gulf Stream as of April
30th...
13 NM South of Dry Tortugas Light...on Loggerhead Key.
7 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
5 NM South of Sand Key Light...off Key West.
7 NM South of Looe Key...off Big Pine Key.
10 NM South of Sombrero Key Light...off Marathon.
5 NM Southeast of Alligator Reef Light...off Islamorada.
4 NM Southeast of Molasses Reef Light...off Key Largo.
3 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.
$$
GMZ031-040830-
Florida Bay including Barnes Sound, Blackwater Sound, and
Buttonwood Sound-
1030 PM EDT Sat May 3 2025
.OVERNIGHT...East to southeast winds near 10 knots, becoming
southeast to south and decreasing to 5 to 10 knots. Bay waters a
light chop, becoming smooth to a light chop. Isolated showers.
.SUNDAY...Southeast to south winds 5 to 10 knots. Bay waters
smooth to a light chop. Scattered showers and isolated
thunderstorms.
.SUNDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters smooth
to a light chop. Scattered showers and isolated thunderstorms.
.MONDAY...Southeast winds 5 to 10 knots. Bay waters smooth to a
light chop. Scattered showers.
.MONDAY NIGHT...East to southeast winds 5 to 10 knots, increasing
to near 10 knots. Bay waters smooth to a light chop, becoming a
light chop. Isolated showers.
.TUESDAY...East to southeast winds near 10 knots, increasing to 10
to 15 knots. Bay waters a light chop, becoming a light to
moderate chop. Isolated showers.
.TUESDAY NIGHT AND WEDNESDAY...East to southeast winds 10 to 15
knots. Bay waters a light to moderate chop.
.WEDNESDAY NIGHT...East winds 10 to 15 knots. Bay waters a light
to moderate chop.
.THURSDAY AND THURSDAY NIGHT...East to southeast winds near 10
knots. Bay waters a light chop.
$$
GMZ032-035-040830-
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-
1030 PM EDT Sat May 3 2025
.OVERNIGHT...East to southeast winds 10 to 15 knots, becoming
southeast to south and decreasing to near 10 knots. Seas around 1
foot, except 1 to 2 feet west of the Marquesas Keys. Nearshore
waters a light to moderate chop, becoming a light chop. Isolated
showers.
.SUNDAY...Southeast to south winds 5 to 10 knots. Seas 1 foot or
less. Nearshore waters smooth to a light chop. Scattered showers
and isolated thunderstorms.
.SUNDAY NIGHT...East to southeast winds 5 to 10 knots. Seas
1 foot or less. Nearshore waters smooth to a light chop. Scattered
showers and isolated thunderstorms.
.MONDAY...East to southeast winds 5 to 10 knots. Seas 1 foot or
less. Nearshore waters smooth to a light chop. Scattered showers.
.MONDAY NIGHT...East winds 5 to 10 knots, increasing to near 10
knots. Seas 1 foot or less, building to around 1 foot. Nearshore
waters smooth to a light chop, becoming a light chop. Isolated
showers.
.TUESDAY...East to southeast winds 10 to 15 knots. Seas around
1 foot. Nearshore waters a light to moderate chop.
.TUESDAY NIGHT...East to southeast winds increasing to near 15
knots. Seas building to 1 to 2 feet. Nearshore waters becoming a
moderate chop.
.WEDNESDAY AND WEDNESDAY NIGHT...East to southeast winds 10 to 15
knots. Seas 1 to 2 feet. Nearshore waters a light to moderate
chop.
.THURSDAY...East to southeast winds 10 to 15 knots. Seas 1 to 2
feet. Nearshore waters a light to moderate chop.
.THURSDAY NIGHT...East to southeast winds 10 to 15 knots,
increasing to near 15 knots. Seas 1 to 2 feet. West of the
Marquesas Keys, seas 1 to 2 feet, building to around 3 feet.
Nearshore waters a light to moderate chop, becoming a moderate
chop.
$$
GMZ042>044-040830-
Hawk Channel from Ocean Reef to Craig Key out to the reef-
Hawk Channel from Craig Key to west end of Seven Mile Bridge out
to the reef-
Hawk Channel from west end of Seven Mile Bridge to Halfmoon Shoal
out to the reef-
1030 PM EDT Sat May 3 2025
.OVERNIGHT...East to southeast winds 10 to 15 knots, decreasing
to near 10 knots. Seas around 2 feet. Nearshore waters a light to
moderate chop, becoming a light chop. Isolated showers.
.SUNDAY...Southeast winds near 10 knots, decreasing to 5 to 10
knots. Seas 1 to 2 feet, subsiding to around 1 foot. Nearshore
waters a light chop, becoming smooth to a light chop. Isolated
showers and thunderstorms.
.SUNDAY NIGHT...East to southeast winds 5 to 10 knots. Seas
around 1 foot. Nearshore waters smooth to a light chop. Scattered
showers and isolated thunderstorms.
.MONDAY...East to southeast winds 5 to 10 knots. Seas around
1 foot. Nearshore waters smooth to a light chop. Scattered
showers.
.MONDAY NIGHT...East winds 5 to 10 knots, increasing to near 10
knots. Seas around 1 foot, building to 1 to 2 feet. Nearshore
waters smooth to a light chop, becoming a light chop. Isolated
showers.
.TUESDAY...East to southeast winds 10 to 15 knots. Seas 1 to
2 feet. Nearshore waters a light to moderate chop.
.TUESDAY NIGHT THROUGH THURSDAY NIGHT...East to southeast winds
10 to 15 knots. Seas 2 to 3 feet. Nearshore waters a light to
moderate chop.
$$
GMZ052>055-072>075-040830-
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-
1030 PM EDT Sat May 3 2025
.OVERNIGHT...East to southeast winds 10 to 15 knots, decreasing
to near 10 knots. Seas 2 to 3 feet, subsiding to 1 to 2 feet. Wave
Detail: East to southeast 3 feet at 5 seconds. Scattered showers.
.SUNDAY...Southeast winds near 10 knots, decreasing to 5 to 10
knots. Seas 1 to 2 feet. Wave Detail: East to southeast 2 feet at
5 seconds. Isolated showers and thunderstorms.
.SUNDAY NIGHT...East to southeast winds 5 to 10 knots. Seas 1 to
2 feet. Wave Detail: East 2 feet at 5 seconds. Scattered showers
and isolated thunderstorms.
.MONDAY...East to southeast winds 5 to 10 knots, increasing to
near 10 knots. Seas 1 to 2 feet. Scattered showers.
.MONDAY NIGHT...East winds near 10 knots, increasing to 10 to 15
knots. Seas 1 to 2 feet, building to 2 to 3 feet. Isolated
showers.
.TUESDAY...East to southeast winds 10 to 15 knots, increasing to
near 15 knots. Seas 2 to 3 feet.
.TUESDAY NIGHT...East winds near 15 knots. Seas building to 2 to
4 feet, occasionally to 5 feet.
.WEDNESDAY...East to southeast winds 10 to 15 knots. Seas 2 to
4 feet, occasionally to 5 feet.
.WEDNESDAY NIGHT...East winds near 15 knots. Seas 2 to 4 feet,
occasionally to 5 feet.
.THURSDAY...East to southeast winds 10 to 15 knots. Seas 2 to
4 feet, occasionally to 5 feet.
.THURSDAY NIGHT...East to southeast winds 10 to 15 knots. Seas
2 to 4 feet, occasionally to 5 feet.
$$
GMZ033-034-040830-
Gulf of America from East Cape Sable to Chokoloskee 20 to 60 NM
out and beyond 5 fathoms-
Gulf of America including Dry Tortugas and Rebecca Shoal Channel-
1030 PM EDT Sat May 3 2025
.OVERNIGHT...Southeast winds near 10 knots, decreasing to 5 to 10
knots. Seas 1 to 2 feet, subsiding to around 1 foot. Wave Detail:
East to southeast 2 feet at 4 seconds. Isolated showers.
.SUNDAY...Southeast to south winds 5 to 10 knots. Seas around
1 foot. Wave Detail: Southeast to south 1 foot at 4 seconds.
Scattered showers and isolated thunderstorms.
.SUNDAY NIGHT...Variable winds near 5 knots, becoming east to
southeast. Seas around 1 foot. Wave Detail: East to southeast 1
foot at 3 seconds. Scattered showers and isolated thunderstorms.
.MONDAY...East to southeast winds near 5 knots, increasing to 5 to
10 knots. Seas around 1 foot. Scattered showers.
.MONDAY NIGHT...East winds 5 to 10 knots, increasing to near 10
knots. Seas around 1 foot, building to 1 to 2 feet. Isolated
showers.
.TUESDAY...East to southeast winds near 10 knots, increasing to 10
to 15 knots. Seas 1 to 2 feet, building to 2 to 3 feet. Isolated
showers.
.TUESDAY NIGHT THROUGH WEDNESDAY NIGHT...East to southeast winds
10 to 15 knots. Seas 2 to 3 feet. Isolated showers.
.THURSDAY...Southeast winds 10 to 15 knots. Seas 2 to 3 feet.
.THURSDAY NIGHT...East to southeast winds near 10 knots. Seas
2 to 3 feet. Isolated showers.
$$
MJV