FZUS52 KKEY 241418
CWFKEY
Coastal Waters Forecast for the Florida Keys
National Weather Service Key West FL
1018 AM EDT Mon Mar 24 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.
GMZ005-242100-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
1018 AM EDT Mon Mar 24 2025
.SYNOPSIS...High pressure over the Atlantic will extend westward
across the Florida Peninsula this afternoon. This will maintain
light to gentle east to southeast breezes. Weak low level ridging
will dominate through the first half of the week, keeping breezes
light and largely easterly. A weak front may press south through
the Keys sometime Wednesday night or Thursday. In the wake of the
weak front, strong high pressure builds in behind it leading to
freshening easterly breezes through the latter half of the week.
The Approximate Shoreward Edge of the Gulf Stream as of March 23...
71 NM South of Dry Tortugas Light...on Loggerhead Key.
42 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
29 NM South of Sand Key Light...off Key West.
21 NM South of Looe Key...off Big Pine Key.
22 NM South of Sombrero Key Light...off Marathon.
19 NM Southeast of Alligator Reef Light...off Islamorada.
20 NM Southeast of Molasses Reef Light...off Key Largo.
13 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.
$$
GMZ031-242100-
Florida Bay including Barnes Sound, Blackwater Sound, and
Buttonwood Sound-
1018 AM EDT Mon Mar 24 2025
.THIS AFTERNOON...Southeast winds 5 to 10 knots. Bay waters
smooth to a light chop.
.TONIGHT...East to southeast winds 5 to 10 knots. Bay waters
smooth to a light chop. Isolated showers.
.TUESDAY...East winds near 5 knots. Bay waters smooth. Scattered
showers and isolated thunderstorms.
.TUESDAY NIGHT...Northeast winds 5 to 10 knots. Bay waters
smooth to a light chop. Scattered showers and isolated
thunderstorms.
.WEDNESDAY...North to northeast winds 5 to 10 knots, becoming
east in the afternoon. Bay waters smooth to a light chop.
Scattered showers and isolated thunderstorms.
.WEDNESDAY NIGHT...Northeast winds 5 to 10 knots, increasing to
near 10 knots. Bay waters smooth to a light chop, becoming a light
chop. Isolated showers.
.THURSDAY...Northeast winds 10 to 15 knots, becoming northeast to
east near 15 knots. Bay waters a light to moderate chop, becoming
a moderate chop. Isolated showers.
.THURSDAY NIGHT...Northeast to east winds 15 to 20 knots. Bay
waters choppy. Isolated showers.
.FRIDAY...Northeast to east winds near 20 knots. Bay waters
rough. Isolated showers.
.FRIDAY NIGHT...East winds near 20 knots. Bay waters rough.
Isolated showers.
$$
GMZ032-035-242100-
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-
1018 AM EDT Mon Mar 24 2025
.THIS AFTERNOON...East to southeast winds 5 to 10 knots. Seas
1 foot or less. Nearshore waters smooth to a light chop.
.TONIGHT...East to southeast winds 5 to 10 knots. Seas around 1
foot. Nearshore waters smooth to a light chop. Isolated showers.
.TUESDAY...Northeast to east winds 5 to 10 knots. Seas around 1
foot. Nearshore waters smooth to a light chop. Scattered showers
and isolated thunderstorms.
.TUESDAY NIGHT...North to northeast winds 5 to 10 knots. Seas
around 1 foot. Nearshore waters smooth to a light chop. Scattered
showers and isolated thunderstorms.
.WEDNESDAY...North to northeast winds 5 to 10 knots. Seas around
1 foot. Nearshore waters smooth to a light chop. Scattered showers
and isolated thunderstorms.
.WEDNESDAY NIGHT...North to northeast winds 5 to 10 knots. Seas
around 1 foot. Nearshore waters smooth to a light chop. Isolated
showers.
.THURSDAY...Northeast 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. Isolated showers.
.THURSDAY NIGHT...Northeast to east winds 15 to 20 knots. Seas
2 to 3 feet. Nearshore waters choppy. Isolated showers.
.FRIDAY...East winds near 20 knots. Seas 2 to 4 feet, except 4 to
5 feet, occasionally to 6 feet west of the Marquesas Keys.
Nearshore waters rough. Isolated showers.
.FRIDAY NIGHT...East winds near 20 knots. Seas 2 to 4 feet,
except 4 to 5 feet, occasionally to 6 feet west of the Marquesas
Keys. Nearshore waters rough. Isolated showers.
$$
GMZ042>044-242100-
Hawk Channel from Ocean Reef to Craig Key out to the reef-
Hawk Channel from Craig Key to west end of Seven Mile Bridge out
to the reef-
Hawk Channel from west end of Seven Mile Bridge to Halfmoon Shoal
out to the reef-
1018 AM EDT Mon Mar 24 2025
.THIS AFTERNOON...East to southeast winds near 10 knots,
decreasing to 5 to 10 knots. Seas 1 to 2 feet. Nearshore waters
a light chop, becoming smooth to a light chop.
.TONIGHT...East to southeast winds near 10 knots. Seas 1 to 2
feet. Nearshore waters a light chop. Isolated showers.
.TUESDAY...Northeast to east winds 5 to 10 knots. Seas around 1
foot. Nearshore waters smooth to a light chop. Scattered showers
and isolated thunderstorms.
.TUESDAY NIGHT...Northeast winds 5 to 10 knots. Seas around
1 foot. Nearshore waters smooth to a light chop. Scattered
showers and isolated thunderstorms.
.WEDNESDAY...North to northeast winds 5 to 10 knots. Seas around
1 foot. Nearshore waters smooth to a light chop. Scattered
showers and isolated thunderstorms.
.WEDNESDAY NIGHT...North to northeast winds 5 to 10 knots,
increasing to near 10 knots. Seas around 1 foot, building to 1 to
2 feet. Nearshore waters smooth to a light chop, becoming a light
chop. Isolated showers.
.THURSDAY...Northeast winds 10 to 15 knots, becoming northeast to
east near 15 knots. Seas 1 to 3 feet, building to 2 to 3 feet.
Nearshore waters a light to moderate chop, becoming a moderate
chop. Isolated showers.
.THURSDAY NIGHT...Northeast to east winds 15 to 20 knots,
increasing to near 20 knots. Seas 2 to 4 feet, occasionally to 5
feet. Nearshore waters choppy, becoming rough. Isolated showers.
.FRIDAY...Northeast to east winds near 20 knots. Seas 3 to
4 feet, occasionally to 5 feet. Nearshore waters rough. Isolated
showers.
.FRIDAY NIGHT...East winds near 20 knots. Seas 3 to 5 feet,
occasionally to 6 feet, except 4 to 6 feet, occasionally to 7 feet
west of Cosgrove Shoal Light. Nearshore waters choppy. Isolated
showers.
$$
GMZ052>055-072>075-242100-
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-
1018 AM EDT Mon Mar 24 2025
.THIS AFTERNOON...East to southeast winds near 10 knots. Seas 2
to 3 feet. Wave Detail: East 3 feet at 5 seconds.
.TONIGHT...East to southeast winds 10 to 15 knots, decreasing to
near 10 knots. Seas 2 to 3 feet, subsiding to around 2 feet. Wave
Detail: East 2 feet at 5 seconds. Isolated showers.
.TUESDAY...East winds 5 to 10 knots, becoming northeast to east.
Seas 1 to 2 feet. Wave Detail: East to southeast 1 foot at 4
seconds. Scattered showers and isolated thunderstorms.
.TUESDAY NIGHT...Northeast to east winds 5 to 10 knots. Seas 1 to
2 feet. Scattered showers and isolated thunderstorms.
.WEDNESDAY...Northeast winds near 10 knots. Seas around 2 feet.
Scattered showers and isolated thunderstorms.
.WEDNESDAY NIGHT...Northeast winds 10 to 15 knots. Seas 2 to 3
feet. Isolated showers.
.THURSDAY...Northeast winds near 15 knots, increasing to 15 to 20
knots. Seas 2 to 4 feet, occasionally to 5 feet. Isolated
showers.
.THURSDAY NIGHT...Northeast to east winds near 20 knots. Seas 4
to 6 feet, occasionally to 8 feet. Isolated showers.
.FRIDAY...East winds near 20 knots. Seas 5 to 7 feet,
occasionally to 9 feet. Isolated showers.
.FRIDAY NIGHT...East winds near 20 knots. Seas 5 to 7 feet,
occasionally to 9 feet. Isolated showers.
$$
GMZ033-034-242100-
Gulf of America from East Cape Sable to Chokoloskee 20 to 60 NM
out and beyond 5 fathoms-
Gulf of America including Dry Tortugas and Rebecca Shoal Channel-
1018 AM EDT Mon Mar 24 2025
.THIS AFTERNOON...East to southeast winds 5 to 10 knots. Seas
1 to 2 feet. Wave Detail: East to southeast 1 foot at 3 seconds.
.TONIGHT...East to southeast winds 5 to 10 knots, becoming east.
Seas 1 to 2 feet. Wave Detail: East to southeast 1 foot at 3
seconds. Isolated showers.
.TUESDAY...Northeast to east winds 5 to 10 knots. Seas around 1
foot. Isolated showers and thunderstorms.
.TUESDAY NIGHT...North to northeast winds 5 to 10 knots. Seas
around 1 foot. Scattered showers and isolated thunderstorms.
.WEDNESDAY...North to northeast winds 5 to 10 knots, increasing to
near 10 knots. Seas around 1 foot, building to 1 to 2 feet.
Scattered showers and isolated thunderstorms.
.WEDNESDAY NIGHT...North to northeast winds 10 to 15 knots. Seas
building to 2 to 3 feet. Isolated showers.
.THURSDAY...Northeast winds 10 to 15 knots. Seas 2 to 3 feet.
.THURSDAY NIGHT...Northeast to east winds 10 to 15 knots,
becoming 15 to 20 knots. Seas 2 to 4 feet. Isolated showers.
.FRIDAY...East winds near 20 knots. Seas 3 to 5 feet,
occasionally to 6 feet. Isolated showers.
.FRIDAY NIGHT...East winds near 20 knots. Seas 3 to 5 feet,
occasionally to 6 feet. Isolated showers.
$$
CWFKEY
Coastal Waters Forecast for the Florida Keys
National Weather Service Key West FL
1018 AM EDT Mon Mar 24 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.
GMZ005-242100-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
1018 AM EDT Mon Mar 24 2025
.SYNOPSIS...High pressure over the Atlantic will extend westward
across the Florida Peninsula this afternoon. This will maintain
light to gentle east to southeast breezes. Weak low level ridging
will dominate through the first half of the week, keeping breezes
light and largely easterly. A weak front may press south through
the Keys sometime Wednesday night or Thursday. In the wake of the
weak front, strong high pressure builds in behind it leading to
freshening easterly breezes through the latter half of the week.
The Approximate Shoreward Edge of the Gulf Stream as of March 23...
71 NM South of Dry Tortugas Light...on Loggerhead Key.
42 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
29 NM South of Sand Key Light...off Key West.
21 NM South of Looe Key...off Big Pine Key.
22 NM South of Sombrero Key Light...off Marathon.
19 NM Southeast of Alligator Reef Light...off Islamorada.
20 NM Southeast of Molasses Reef Light...off Key Largo.
13 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.
$$
GMZ031-242100-
Florida Bay including Barnes Sound, Blackwater Sound, and
Buttonwood Sound-
1018 AM EDT Mon Mar 24 2025
.THIS AFTERNOON...Southeast winds 5 to 10 knots. Bay waters
smooth to a light chop.
.TONIGHT...East to southeast winds 5 to 10 knots. Bay waters
smooth to a light chop. Isolated showers.
.TUESDAY...East winds near 5 knots. Bay waters smooth. Scattered
showers and isolated thunderstorms.
.TUESDAY NIGHT...Northeast winds 5 to 10 knots. Bay waters
smooth to a light chop. Scattered showers and isolated
thunderstorms.
.WEDNESDAY...North to northeast winds 5 to 10 knots, becoming
east in the afternoon. Bay waters smooth to a light chop.
Scattered showers and isolated thunderstorms.
.WEDNESDAY NIGHT...Northeast winds 5 to 10 knots, increasing to
near 10 knots. Bay waters smooth to a light chop, becoming a light
chop. Isolated showers.
.THURSDAY...Northeast winds 10 to 15 knots, becoming northeast to
east near 15 knots. Bay waters a light to moderate chop, becoming
a moderate chop. Isolated showers.
.THURSDAY NIGHT...Northeast to east winds 15 to 20 knots. Bay
waters choppy. Isolated showers.
.FRIDAY...Northeast to east winds near 20 knots. Bay waters
rough. Isolated showers.
.FRIDAY NIGHT...East winds near 20 knots. Bay waters rough.
Isolated showers.
$$
GMZ032-035-242100-
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-
1018 AM EDT Mon Mar 24 2025
.THIS AFTERNOON...East to southeast winds 5 to 10 knots. Seas
1 foot or less. Nearshore waters smooth to a light chop.
.TONIGHT...East to southeast winds 5 to 10 knots. Seas around 1
foot. Nearshore waters smooth to a light chop. Isolated showers.
.TUESDAY...Northeast to east winds 5 to 10 knots. Seas around 1
foot. Nearshore waters smooth to a light chop. Scattered showers
and isolated thunderstorms.
.TUESDAY NIGHT...North to northeast winds 5 to 10 knots. Seas
around 1 foot. Nearshore waters smooth to a light chop. Scattered
showers and isolated thunderstorms.
.WEDNESDAY...North to northeast winds 5 to 10 knots. Seas around
1 foot. Nearshore waters smooth to a light chop. Scattered showers
and isolated thunderstorms.
.WEDNESDAY NIGHT...North to northeast winds 5 to 10 knots. Seas
around 1 foot. Nearshore waters smooth to a light chop. Isolated
showers.
.THURSDAY...Northeast 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. Isolated showers.
.THURSDAY NIGHT...Northeast to east winds 15 to 20 knots. Seas
2 to 3 feet. Nearshore waters choppy. Isolated showers.
.FRIDAY...East winds near 20 knots. Seas 2 to 4 feet, except 4 to
5 feet, occasionally to 6 feet west of the Marquesas Keys.
Nearshore waters rough. Isolated showers.
.FRIDAY NIGHT...East winds near 20 knots. Seas 2 to 4 feet,
except 4 to 5 feet, occasionally to 6 feet west of the Marquesas
Keys. Nearshore waters rough. Isolated showers.
$$
GMZ042>044-242100-
Hawk Channel from Ocean Reef to Craig Key out to the reef-
Hawk Channel from Craig Key to west end of Seven Mile Bridge out
to the reef-
Hawk Channel from west end of Seven Mile Bridge to Halfmoon Shoal
out to the reef-
1018 AM EDT Mon Mar 24 2025
.THIS AFTERNOON...East to southeast winds near 10 knots,
decreasing to 5 to 10 knots. Seas 1 to 2 feet. Nearshore waters
a light chop, becoming smooth to a light chop.
.TONIGHT...East to southeast winds near 10 knots. Seas 1 to 2
feet. Nearshore waters a light chop. Isolated showers.
.TUESDAY...Northeast to east winds 5 to 10 knots. Seas around 1
foot. Nearshore waters smooth to a light chop. Scattered showers
and isolated thunderstorms.
.TUESDAY NIGHT...Northeast winds 5 to 10 knots. Seas around
1 foot. Nearshore waters smooth to a light chop. Scattered
showers and isolated thunderstorms.
.WEDNESDAY...North to northeast winds 5 to 10 knots. Seas around
1 foot. Nearshore waters smooth to a light chop. Scattered
showers and isolated thunderstorms.
.WEDNESDAY NIGHT...North to northeast winds 5 to 10 knots,
increasing to near 10 knots. Seas around 1 foot, building to 1 to
2 feet. Nearshore waters smooth to a light chop, becoming a light
chop. Isolated showers.
.THURSDAY...Northeast winds 10 to 15 knots, becoming northeast to
east near 15 knots. Seas 1 to 3 feet, building to 2 to 3 feet.
Nearshore waters a light to moderate chop, becoming a moderate
chop. Isolated showers.
.THURSDAY NIGHT...Northeast to east winds 15 to 20 knots,
increasing to near 20 knots. Seas 2 to 4 feet, occasionally to 5
feet. Nearshore waters choppy, becoming rough. Isolated showers.
.FRIDAY...Northeast to east winds near 20 knots. Seas 3 to
4 feet, occasionally to 5 feet. Nearshore waters rough. Isolated
showers.
.FRIDAY NIGHT...East winds near 20 knots. Seas 3 to 5 feet,
occasionally to 6 feet, except 4 to 6 feet, occasionally to 7 feet
west of Cosgrove Shoal Light. Nearshore waters choppy. Isolated
showers.
$$
GMZ052>055-072>075-242100-
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-
1018 AM EDT Mon Mar 24 2025
.THIS AFTERNOON...East to southeast winds near 10 knots. Seas 2
to 3 feet. Wave Detail: East 3 feet at 5 seconds.
.TONIGHT...East to southeast winds 10 to 15 knots, decreasing to
near 10 knots. Seas 2 to 3 feet, subsiding to around 2 feet. Wave
Detail: East 2 feet at 5 seconds. Isolated showers.
.TUESDAY...East winds 5 to 10 knots, becoming northeast to east.
Seas 1 to 2 feet. Wave Detail: East to southeast 1 foot at 4
seconds. Scattered showers and isolated thunderstorms.
.TUESDAY NIGHT...Northeast to east winds 5 to 10 knots. Seas 1 to
2 feet. Scattered showers and isolated thunderstorms.
.WEDNESDAY...Northeast winds near 10 knots. Seas around 2 feet.
Scattered showers and isolated thunderstorms.
.WEDNESDAY NIGHT...Northeast winds 10 to 15 knots. Seas 2 to 3
feet. Isolated showers.
.THURSDAY...Northeast winds near 15 knots, increasing to 15 to 20
knots. Seas 2 to 4 feet, occasionally to 5 feet. Isolated
showers.
.THURSDAY NIGHT...Northeast to east winds near 20 knots. Seas 4
to 6 feet, occasionally to 8 feet. Isolated showers.
.FRIDAY...East winds near 20 knots. Seas 5 to 7 feet,
occasionally to 9 feet. Isolated showers.
.FRIDAY NIGHT...East winds near 20 knots. Seas 5 to 7 feet,
occasionally to 9 feet. Isolated showers.
$$
GMZ033-034-242100-
Gulf of America from East Cape Sable to Chokoloskee 20 to 60 NM
out and beyond 5 fathoms-
Gulf of America including Dry Tortugas and Rebecca Shoal Channel-
1018 AM EDT Mon Mar 24 2025
.THIS AFTERNOON...East to southeast winds 5 to 10 knots. Seas
1 to 2 feet. Wave Detail: East to southeast 1 foot at 3 seconds.
.TONIGHT...East to southeast winds 5 to 10 knots, becoming east.
Seas 1 to 2 feet. Wave Detail: East to southeast 1 foot at 3
seconds. Isolated showers.
.TUESDAY...Northeast to east winds 5 to 10 knots. Seas around 1
foot. Isolated showers and thunderstorms.
.TUESDAY NIGHT...North to northeast winds 5 to 10 knots. Seas
around 1 foot. Scattered showers and isolated thunderstorms.
.WEDNESDAY...North to northeast winds 5 to 10 knots, increasing to
near 10 knots. Seas around 1 foot, building to 1 to 2 feet.
Scattered showers and isolated thunderstorms.
.WEDNESDAY NIGHT...North to northeast winds 10 to 15 knots. Seas
building to 2 to 3 feet. Isolated showers.
.THURSDAY...Northeast winds 10 to 15 knots. Seas 2 to 3 feet.
.THURSDAY NIGHT...Northeast to east winds 10 to 15 knots,
becoming 15 to 20 knots. Seas 2 to 4 feet. Isolated showers.
.FRIDAY...East winds near 20 knots. Seas 3 to 5 feet,
occasionally to 6 feet. Isolated showers.
.FRIDAY NIGHT...East winds near 20 knots. Seas 3 to 5 feet,
occasionally to 6 feet. Isolated showers.
$$