FZUS52 KKEY 130224
CWFKEY
Coastal Waters Forecast for the Florida Keys
National Weather Service Key West FL
1024 PM EDT Mon May 12 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.
GMZ005-131430-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
1024 PM EDT Mon May 12 2025
.SYNOPSIS...
Deep troughing centered over the northern Gulf coast will lift
northward overnight continuing to pump in abundant moisture
through the forecast area. Moderate south to southwest breezes
will veer more westerly while the heart of the parent low
meanders along the northern Gulf. Scattered to numerous showers
with embedded isolated to scattered thunderstorms will continue
overnight into early Tuesday. As the low lifts toward the
northeast during the middle of the week, higher pressure will be
able to fill in behind it, encouraging drier weather and
slackening breezes.
The Approximate Shoreward Edge of the Gulf Stream as of May 10th...
22 NM South of Dry Tortugas Light...on Loggerhead Key.
8 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
6 NM South of Sand Key Light...off Key West.
5 NM South of Looe Key...off Big Pine Key.
7 NM South of Sombrero Key Light...off Marathon.
12 NM Southeast of Alligator Reef Light...off Islamorada.
8 NM Southeast of Molasses Reef Light...off Key Largo.
2 NM East of Carysfort Reef Light...off Ocean Reef.
Gulf Stream Information Courtesy of the Naval Oceanographic
Office.
$$
GMZ031-131430-
Florida Bay including Barnes Sound, Blackwater Sound, and
Buttonwood Sound-
1024 PM EDT Mon May 12 2025
.OVERNIGHT...South to southwest winds 10 to 15 knots. Bay waters
a light to moderate chop. Numerous showers and scattered
thunderstorms.
.TUESDAY...Southwest to west winds near 10 knots. Bay waters a
light chop. Scattered showers and isolated thunderstorms.
.TUESDAY NIGHT...West to northwest winds 5 to 10 knots. Bay
waters smooth to a light chop. Scattered showers and isolated
thunderstorms.
.WEDNESDAY...North to northeast winds near 5 knots, becoming
variable. Bay waters smooth. Isolated showers.
.WEDNESDAY NIGHT...Southeast winds near 5 knots. Bay waters
smooth.
.THURSDAY...East winds near 5 knots, becoming southeast 5 to 10
knots. Bay waters smooth, becoming smooth to a light chop.
Isolated showers.
.THURSDAY NIGHT...East to southeast winds 5 to 10 knots. Bay
waters smooth to a light chop.
.FRIDAY...East to southeast winds 5 to 10 knots. Bay waters
smooth to a light chop. Isolated showers.
.FRIDAY NIGHT...East to southeast winds near 10 knots. Bay waters
a light chop. Isolated showers.
.SATURDAY...Southeast winds 5 to 10 knots. Bay waters smooth to a
light chop. Isolated showers.
.SATURDAY NIGHT...East to southeast winds near 10 knots. Bay
waters a light chop. Isolated showers.
$$
GMZ032-035-131430-
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-
1024 PM EDT Mon May 12 2025
.OVERNIGHT...Southwest winds 10 to 15 knots, decreasing to near 10
knots late. Seas 1 to 2 feet. Nearshore waters a light to
moderate chop, becoming a light chop. Numerous showers and
scattered thunderstorms.
.TUESDAY...West to northwest winds decreasing to 5 to 10 knots.
Seas subsiding to around 1 foot. Nearshore waters becoming smooth
to a light chop. Scattered showers and isolated thunderstorms.
.TUESDAY NIGHT...Northwest winds 5 to 10 knots. Seas around 1
foot. Nearshore waters smooth to a light chop. Isolated showers
and thunderstorms.
.WEDNESDAY...North to northeast winds near 5 knots, becoming
variable. Seas 1 foot or less. Nearshore waters smooth. Isolated
showers.
.WEDNESDAY NIGHT...Variable winds near 5 knots, becoming east to
southeast. Seas 1 foot or less. Nearshore waters smooth.
.THURSDAY...East to southeast winds increasing to 5 to 10 knots.
Seas 1 foot or less. Nearshore waters becoming smooth to a light
chop.
.THURSDAY NIGHT...East to southeast winds 5 to 10 knots. Seas
around 1 foot. Nearshore waters smooth to a light chop.
.FRIDAY...East to southeast winds 5 to 10 knots. Seas around 1
foot. Nearshore waters smooth to a light chop.
.FRIDAY NIGHT...East to southeast winds 5 to 10 knots, increasing
to near 10 knots. Seas around 1 foot. Nearshore waters smooth to
a light chop, becoming a light chop. Isolated showers.
.SATURDAY...Southeast winds decreasing to 5 to 10 knots. Seas
around 1 foot. Nearshore waters becoming smooth to a light chop.
Isolated showers.
.SATURDAY NIGHT...East to southeast winds near 10 knots,
increasing to 10 to 15 knots. Seas around 1 foot, building to 1 to
2 feet. Nearshore waters a light chop, becoming a light to
moderate chop.
$$
GMZ042>044-131430-
Hawk Channel from Ocean Reef to Craig Key out to the reef-
Hawk Channel from Craig Key to west end of Seven Mile Bridge out
to the reef-
Hawk Channel from west end of Seven Mile Bridge to Halfmoon Shoal
out to the reef-
1024 PM EDT Mon May 12 2025
.OVERNIGHT...Southwest winds 10 to 15 knots. Seas 1 to 3 feet,
subsiding to 1 to 2 feet. Nearshore waters a light to moderate
chop. Numerous showers and scattered thunderstorms.
.TUESDAY...West to northwest winds near 10 knots. Seas subsiding
to around 1 foot. Nearshore waters a light chop. Scattered
showers and isolated thunderstorms.
.TUESDAY NIGHT...Northwest winds 5 to 10 knots. Seas around
1 foot. Nearshore waters smooth to a light chop. Scattered
showers and isolated thunderstorms.
.WEDNESDAY...Northeast winds near 5 knots, becoming variable.
Seas around 1 foot. Nearshore waters smooth. Isolated showers.
.WEDNESDAY NIGHT...East winds near 5 knots. Seas 1 foot or less.
Nearshore waters smooth. Isolated showers.
.THURSDAY...East to southeast winds increasing to 5 to 10 knots.
Seas 1 foot or less. Nearshore waters becoming smooth to a light
chop. Isolated showers.
.THURSDAY NIGHT...East to southeast winds 5 to 10 knots. Seas
around 1 foot. Nearshore waters smooth to a light chop.
.FRIDAY...East to southeast winds 5 to 10 knots. Seas around
1 foot. Nearshore waters smooth to a light chop. Isolated
showers.
.FRIDAY NIGHT...East to southeast winds near 10 knots, increasing
to 10 to 15 knots. Seas 1 to 2 feet. Nearshore waters a light
chop, becoming a light to moderate chop. Isolated showers.
.SATURDAY...East to southeast winds decreasing to near 10 knots.
Seas 1 to 2 feet. Nearshore waters becoming a light chop.
Isolated showers.
.SATURDAY NIGHT...East to southeast winds increasing to 10 to 15
knots. Seas 1 to 2 feet. Nearshore waters becoming a light to
moderate chop. Isolated showers.
$$
GMZ052>055-072>075-131430-
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-
1024 PM EDT Mon May 12 2025
.OVERNIGHT...Southwest winds 10 to 15 knots. Seas 2 to 3 feet.
Wave Detail: East to southeast 2 feet at 5 seconds and west
1 foot at 6 seconds. Numerous showers and scattered
thunderstorms.
.TUESDAY...Southwest to west winds near 10 knots, becoming west to
northwest 5 to 10 knots. Seas subsiding to 1 to 2 feet. Wave
Detail: East 1 foot at 5 seconds. Scattered showers and isolated
thunderstorms.
.TUESDAY NIGHT...Northwest to north winds 5 to 10 knots, becoming
variable near 5 knots. Seas around 1 foot. Wave Detail: Northeast
to east 1 foot at 5 seconds and west 1 foot at 6 seconds.
Scattered showers and isolated thunderstorms.
.WEDNESDAY...Northeast winds 5 to 10 knots. Seas 1 to 2 feet.
Isolated showers.
.WEDNESDAY NIGHT...East winds 5 to 10 knots. Seas 1 to 2 feet.
Isolated showers.
.THURSDAY...East winds 5 to 10 knots. Seas 1 to 2 feet. Isolated
showers.
.THURSDAY NIGHT...East winds near 10 knots. Seas 1 to 2 feet.
.FRIDAY...East to southeast winds 5 to 10 knots, increasing to
near 10 knots. Seas 1 to 2 feet. Isolated showers.
.FRIDAY NIGHT...East to southeast winds 10 to 15 knots. Seas 2 to
3 feet. Isolated showers.
.SATURDAY...East to southeast winds near 10 knots. Seas 2 to
3 feet. Isolated showers.
.SATURDAY NIGHT...East to southeast winds 10 to 15 knots. Seas
2 to 3 feet. Isolated showers.
$$
GMZ033-034-131430-
Gulf of America from East Cape Sable to Chokoloskee 20 to 60 NM
out and beyond 5 fathoms-
Gulf of America including Dry Tortugas and Rebecca Shoal Channel-
1024 PM EDT Mon May 12 2025
.OVERNIGHT...Southwest to west winds 10 to 15 knots, becoming
west to northwest near 10 knots. Seas 1 to 3 feet, subsiding to 1
to 2 feet. Wave Detail: Southeast 1 foot at 3 seconds and
southwest to west 1 foot at 5 seconds. Numerous showers and
scattered thunderstorms.
.TUESDAY...West to northwest winds 5 to 10 knots. Seas around 1
foot. Wave Detail: West 1 foot at 6 seconds. Scattered showers and
isolated thunderstorms.
.TUESDAY NIGHT...Northwest winds 5 to 10 knots, becoming
northwest to north. Seas 1 to 2 feet. Wave Detail: West to
northwest 2 feet at 7 seconds and southwest 1 foot at 4 seconds.
Isolated showers and thunderstorms.
.WEDNESDAY...Northeast winds near 5 knots. Seas 1 to 2 feet.
Isolated showers.
.WEDNESDAY NIGHT...Variable winds near 5 knots, becoming east to
southeast after midnight. Seas around 1 foot.
.THURSDAY...East to southeast winds increasing to 5 to 10 knots.
Seas around 1 foot.
.THURSDAY NIGHT...East to southeast winds 5 to 10 knots. Seas
around 1 foot.
.FRIDAY...East to southeast winds 5 to 10 knots. Seas around
1 foot.
.FRIDAY NIGHT...East to southeast winds 5 to 10 knots, increasing
to near 10 knots. Seas 1 to 2 feet.
.SATURDAY...Southeast winds decreasing to 5 to 10 knots. Seas 1
to 2 feet. Isolated showers.
.SATURDAY NIGHT...East to southeast winds near 10 knots,
increasing to 10 to 15 knots. Seas 1 to 2 feet.
$$
CWFKEY
Coastal Waters Forecast for the Florida Keys
National Weather Service Key West FL
1024 PM EDT Mon May 12 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.
GMZ005-131430-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
1024 PM EDT Mon May 12 2025
.SYNOPSIS...
Deep troughing centered over the northern Gulf coast will lift
northward overnight continuing to pump in abundant moisture
through the forecast area. Moderate south to southwest breezes
will veer more westerly while the heart of the parent low
meanders along the northern Gulf. Scattered to numerous showers
with embedded isolated to scattered thunderstorms will continue
overnight into early Tuesday. As the low lifts toward the
northeast during the middle of the week, higher pressure will be
able to fill in behind it, encouraging drier weather and
slackening breezes.
The Approximate Shoreward Edge of the Gulf Stream as of May 10th...
22 NM South of Dry Tortugas Light...on Loggerhead Key.
8 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
6 NM South of Sand Key Light...off Key West.
5 NM South of Looe Key...off Big Pine Key.
7 NM South of Sombrero Key Light...off Marathon.
12 NM Southeast of Alligator Reef Light...off Islamorada.
8 NM Southeast of Molasses Reef Light...off Key Largo.
2 NM East of Carysfort Reef Light...off Ocean Reef.
Gulf Stream Information Courtesy of the Naval Oceanographic
Office.
$$
GMZ031-131430-
Florida Bay including Barnes Sound, Blackwater Sound, and
Buttonwood Sound-
1024 PM EDT Mon May 12 2025
.OVERNIGHT...South to southwest winds 10 to 15 knots. Bay waters
a light to moderate chop. Numerous showers and scattered
thunderstorms.
.TUESDAY...Southwest to west winds near 10 knots. Bay waters a
light chop. Scattered showers and isolated thunderstorms.
.TUESDAY NIGHT...West to northwest winds 5 to 10 knots. Bay
waters smooth to a light chop. Scattered showers and isolated
thunderstorms.
.WEDNESDAY...North to northeast winds near 5 knots, becoming
variable. Bay waters smooth. Isolated showers.
.WEDNESDAY NIGHT...Southeast winds near 5 knots. Bay waters
smooth.
.THURSDAY...East winds near 5 knots, becoming southeast 5 to 10
knots. Bay waters smooth, becoming smooth to a light chop.
Isolated showers.
.THURSDAY NIGHT...East to southeast winds 5 to 10 knots. Bay
waters smooth to a light chop.
.FRIDAY...East to southeast winds 5 to 10 knots. Bay waters
smooth to a light chop. Isolated showers.
.FRIDAY NIGHT...East to southeast winds near 10 knots. Bay waters
a light chop. Isolated showers.
.SATURDAY...Southeast winds 5 to 10 knots. Bay waters smooth to a
light chop. Isolated showers.
.SATURDAY NIGHT...East to southeast winds near 10 knots. Bay
waters a light chop. Isolated showers.
$$
GMZ032-035-131430-
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-
1024 PM EDT Mon May 12 2025
.OVERNIGHT...Southwest winds 10 to 15 knots, decreasing to near 10
knots late. Seas 1 to 2 feet. Nearshore waters a light to
moderate chop, becoming a light chop. Numerous showers and
scattered thunderstorms.
.TUESDAY...West to northwest winds decreasing to 5 to 10 knots.
Seas subsiding to around 1 foot. Nearshore waters becoming smooth
to a light chop. Scattered showers and isolated thunderstorms.
.TUESDAY NIGHT...Northwest winds 5 to 10 knots. Seas around 1
foot. Nearshore waters smooth to a light chop. Isolated showers
and thunderstorms.
.WEDNESDAY...North to northeast winds near 5 knots, becoming
variable. Seas 1 foot or less. Nearshore waters smooth. Isolated
showers.
.WEDNESDAY NIGHT...Variable winds near 5 knots, becoming east to
southeast. Seas 1 foot or less. Nearshore waters smooth.
.THURSDAY...East to southeast winds increasing to 5 to 10 knots.
Seas 1 foot or less. Nearshore waters becoming smooth to a light
chop.
.THURSDAY NIGHT...East to southeast winds 5 to 10 knots. Seas
around 1 foot. Nearshore waters smooth to a light chop.
.FRIDAY...East to southeast winds 5 to 10 knots. Seas around 1
foot. Nearshore waters smooth to a light chop.
.FRIDAY NIGHT...East to southeast winds 5 to 10 knots, increasing
to near 10 knots. Seas around 1 foot. Nearshore waters smooth to
a light chop, becoming a light chop. Isolated showers.
.SATURDAY...Southeast winds decreasing to 5 to 10 knots. Seas
around 1 foot. Nearshore waters becoming smooth to a light chop.
Isolated showers.
.SATURDAY NIGHT...East to southeast winds near 10 knots,
increasing to 10 to 15 knots. Seas around 1 foot, building to 1 to
2 feet. Nearshore waters a light chop, becoming a light to
moderate chop.
$$
GMZ042>044-131430-
Hawk Channel from Ocean Reef to Craig Key out to the reef-
Hawk Channel from Craig Key to west end of Seven Mile Bridge out
to the reef-
Hawk Channel from west end of Seven Mile Bridge to Halfmoon Shoal
out to the reef-
1024 PM EDT Mon May 12 2025
.OVERNIGHT...Southwest winds 10 to 15 knots. Seas 1 to 3 feet,
subsiding to 1 to 2 feet. Nearshore waters a light to moderate
chop. Numerous showers and scattered thunderstorms.
.TUESDAY...West to northwest winds near 10 knots. Seas subsiding
to around 1 foot. Nearshore waters a light chop. Scattered
showers and isolated thunderstorms.
.TUESDAY NIGHT...Northwest winds 5 to 10 knots. Seas around
1 foot. Nearshore waters smooth to a light chop. Scattered
showers and isolated thunderstorms.
.WEDNESDAY...Northeast winds near 5 knots, becoming variable.
Seas around 1 foot. Nearshore waters smooth. Isolated showers.
.WEDNESDAY NIGHT...East winds near 5 knots. Seas 1 foot or less.
Nearshore waters smooth. Isolated showers.
.THURSDAY...East to southeast winds increasing to 5 to 10 knots.
Seas 1 foot or less. Nearshore waters becoming smooth to a light
chop. Isolated showers.
.THURSDAY NIGHT...East to southeast winds 5 to 10 knots. Seas
around 1 foot. Nearshore waters smooth to a light chop.
.FRIDAY...East to southeast winds 5 to 10 knots. Seas around
1 foot. Nearshore waters smooth to a light chop. Isolated
showers.
.FRIDAY NIGHT...East to southeast winds near 10 knots, increasing
to 10 to 15 knots. Seas 1 to 2 feet. Nearshore waters a light
chop, becoming a light to moderate chop. Isolated showers.
.SATURDAY...East to southeast winds decreasing to near 10 knots.
Seas 1 to 2 feet. Nearshore waters becoming a light chop.
Isolated showers.
.SATURDAY NIGHT...East to southeast winds increasing to 10 to 15
knots. Seas 1 to 2 feet. Nearshore waters becoming a light to
moderate chop. Isolated showers.
$$
GMZ052>055-072>075-131430-
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-
1024 PM EDT Mon May 12 2025
.OVERNIGHT...Southwest winds 10 to 15 knots. Seas 2 to 3 feet.
Wave Detail: East to southeast 2 feet at 5 seconds and west
1 foot at 6 seconds. Numerous showers and scattered
thunderstorms.
.TUESDAY...Southwest to west winds near 10 knots, becoming west to
northwest 5 to 10 knots. Seas subsiding to 1 to 2 feet. Wave
Detail: East 1 foot at 5 seconds. Scattered showers and isolated
thunderstorms.
.TUESDAY NIGHT...Northwest to north winds 5 to 10 knots, becoming
variable near 5 knots. Seas around 1 foot. Wave Detail: Northeast
to east 1 foot at 5 seconds and west 1 foot at 6 seconds.
Scattered showers and isolated thunderstorms.
.WEDNESDAY...Northeast winds 5 to 10 knots. Seas 1 to 2 feet.
Isolated showers.
.WEDNESDAY NIGHT...East winds 5 to 10 knots. Seas 1 to 2 feet.
Isolated showers.
.THURSDAY...East winds 5 to 10 knots. Seas 1 to 2 feet. Isolated
showers.
.THURSDAY NIGHT...East winds near 10 knots. Seas 1 to 2 feet.
.FRIDAY...East to southeast winds 5 to 10 knots, increasing to
near 10 knots. Seas 1 to 2 feet. Isolated showers.
.FRIDAY NIGHT...East to southeast winds 10 to 15 knots. Seas 2 to
3 feet. Isolated showers.
.SATURDAY...East to southeast winds near 10 knots. Seas 2 to
3 feet. Isolated showers.
.SATURDAY NIGHT...East to southeast winds 10 to 15 knots. Seas
2 to 3 feet. Isolated showers.
$$
GMZ033-034-131430-
Gulf of America from East Cape Sable to Chokoloskee 20 to 60 NM
out and beyond 5 fathoms-
Gulf of America including Dry Tortugas and Rebecca Shoal Channel-
1024 PM EDT Mon May 12 2025
.OVERNIGHT...Southwest to west winds 10 to 15 knots, becoming
west to northwest near 10 knots. Seas 1 to 3 feet, subsiding to 1
to 2 feet. Wave Detail: Southeast 1 foot at 3 seconds and
southwest to west 1 foot at 5 seconds. Numerous showers and
scattered thunderstorms.
.TUESDAY...West to northwest winds 5 to 10 knots. Seas around 1
foot. Wave Detail: West 1 foot at 6 seconds. Scattered showers and
isolated thunderstorms.
.TUESDAY NIGHT...Northwest winds 5 to 10 knots, becoming
northwest to north. Seas 1 to 2 feet. Wave Detail: West to
northwest 2 feet at 7 seconds and southwest 1 foot at 4 seconds.
Isolated showers and thunderstorms.
.WEDNESDAY...Northeast winds near 5 knots. Seas 1 to 2 feet.
Isolated showers.
.WEDNESDAY NIGHT...Variable winds near 5 knots, becoming east to
southeast after midnight. Seas around 1 foot.
.THURSDAY...East to southeast winds increasing to 5 to 10 knots.
Seas around 1 foot.
.THURSDAY NIGHT...East to southeast winds 5 to 10 knots. Seas
around 1 foot.
.FRIDAY...East to southeast winds 5 to 10 knots. Seas around
1 foot.
.FRIDAY NIGHT...East to southeast winds 5 to 10 knots, increasing
to near 10 knots. Seas 1 to 2 feet.
.SATURDAY...Southeast winds decreasing to 5 to 10 knots. Seas 1
to 2 feet. Isolated showers.
.SATURDAY NIGHT...East to southeast winds near 10 knots,
increasing to 10 to 15 knots. Seas 1 to 2 feet.
$$