National Weather Service Marine Forecast FZUS52 KKEY
FZUS52 KKEY 210933
CWFKEY
Coastal Waters Forecast for the Florida Keys
National Weather Service Key West FL
433 AM EST Thu Nov 21 2024
Florida Bay, Hawk Channel and Straits of Florida from Ocean Reef to south of Dry Tortugas, and the extreme southeastern Gulf of Mexico, 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.
GMZ005-211545
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
433 AM EST Thu Nov 21 2024
SYNOPSIS
A cold front sweeping through Keys waters today will
generally maintain fresh northwest to northerly breezes. Waters in
the lee of South Florida will likely see a brief, but substantial,
lull in the afternoon. Moderate to fresh northwest to northerly
breezes will continue through the remainder of the week, with
considerable diurnal speed variations. High pressure will then
advance eastward through the Gulf Coast states this weekend
resulting in winds relaxing and veering northeast to east
northeasterly.
The Approximate Shoreward Edge of the Gulf Stream as of November 12...
31 NM South of Dry Tortugas Light...on Loggerhead Key. 9 NM South of Cosgrove Shoal Light...off the Marquesas Keys. 2 NM South of Sand Key Light...off Key West. 5 NM South of Looe Key...off Big Pine Key. 8 NM South of Sombrero Key Light...off Marathon. 14 NM Southeast of Alligator Reef Light...off Islamorada. 19 NM Southeast of Molasses Reef Light...off Key Largo. 10 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 the Real Time Ocean Forecast System.
GMZ031-211545
Florida Bay including Barnes Sound, Blackwater Sound, and
Buttonwood Sound
433 AM EST Thu Nov 21 2024
SMALL CRAFT SHOULD EXERCISE CAUTION UNTIL WINDS DECREASE
SMALL CRAFT ADVISORY WILL LIKELY BE REQUIRED TONIGHT
TODAY
Northwest to north winds 15 to 20 knots, early,
decreasing to 10 to 15 knots. Bay waters choppy, becoming a light
to moderate chop.
TONIGHT
Northwest to north winds near 15 knots, increasing to
near 20 knots. Bay waters a moderate chop, becoming rough.
FRIDAY
Northwest to north winds near 20 knots, decreasing to 10
to knots. Bay waters rough, becoming choppy.
FRIDAY NIGHT
Northwest to north winds near 15 knots. Bay
waters a moderate chop.
SATURDAY
North winds near 15 knots, decreasing to near 10
knots. Bay waters a moderate chop, becoming a light chop.
SATURDAY NIGHT
North to northeast winds near 10 knots. Bay
waters a light chop.
SUNDAY
Northeast winds near 10 knots. Bay waters a light chop.
SUNDAY NIGHT
Northeast to east winds near 10 knots. Bay waters
a light chop.
MONDAY AND MONDAY NIGHT
Northeast to east winds 10 to 15
knots. Bay waters a light to moderate chop.
GMZ032-211545
Bayside and Gulf side from Craig Key to west end of Seven Mile
Bridge
433 AM EST Thu Nov 21 2024
SMALL CRAFT ADVISORY IN EFFECT
TODAY
Northwest to north winds near 20 knots, decreasing to 15
to 20 knots. Seas 2 to 3 feet. Nearshore waters rough, becoming
choppy.
TONIGHT
Northwest to north winds increasing to near 20 knots.
Seas 2 to 3 feet. Nearshore waters becoming rough.
FRIDAY
Northwest to north winds near 20 knots, decreasing to
near 15 knots. Seas 2 to 4 feet, subsiding to 2 to 3 feet.
Nearshore waters rough, becoming a moderate chop.
FRIDAY NIGHT
Northwest to north winds near 15 knots. Seas 2 to
3 feet. Nearshore waters a moderate chop.
SATURDAY
North winds near 15 knots, decreasing to near 10 knots.
Seas 1 to 2 feet. Nearshore waters a moderate chop, becoming a
light chop.
SATURDAY NIGHT
North to northeast winds near 10 knots. Seas
1 foot or less. Nearshore waters a light chop.
SUNDAY
Northeast winds near 10 knots. Seas 1 foot or less.
Nearshore waters a light chop.
SUNDAY NIGHT THROUGH MONDAY NIGHT
Northeast to east winds 10
to 15 knots. Seas around 1 foot. Nearshore waters a light to
moderate chop.
GMZ035-211545
Gulf of Mexico from west end of Seven Mile Bridge to Halfmoon
Shoal out to 5 Fathoms
433 AM EST Thu Nov 21 2024
SMALL CRAFT ADVISORY IN EFFECT
TODAY
Northwest to north winds near 20 knots. Seas 3 to
5 feet, occasionally to 6 feet, except 5 to 7 feet, occasionally
to 9 feet west of the Marquesas Keys. Nearshore waters rough.
TONIGHT
Northwest to north winds near 20 knots. Seas 3 to
5 feet, occasionally to 6 feet, except 6 to 7 feet, occasionally
to 9 feet west of the Marquesas Keys. Nearshore waters rough.
FRIDAY
Northwest to north winds near 20 knots, decreasing to
15 to 20 knots. Seas 3 to 5 feet, occasionally to 6 feet, except
5 to 6 feet, occasionally to 8 feet west of the Marquesas Keys.
Nearshore waters rough, becoming choppy.
FRIDAY NIGHT
Northwest to north winds 15 to 20 knots,
decreasing to near 15 knots. Seas 2 to 4 feet, occasionally to 5
feet, except 4 to 6 feet, occasionally to 8 feet west of the
Marquesas Keys. Nearshore waters choppy, becoming a moderate chop.
SATURDAY
North winds near 15 knots, decreasing to around 10
knots. Seas 2 to 4 feet, occasionally to 5 feet, except 4 to 5
feet, occasionally to 6 feet west of the Marquesas Keys. Nearshore
waters a moderate chop, becoming a light chop.
SATURDAY NIGHT
North to northeast winds near 10 knots. Seas
2 to 3 feet, except 3 to 4 feet, occasionally to 5 feet west of
the Marquesas Keys. Nearshore waters a light chop.
SUNDAY
Northeast winds near 10 knots. Seas 1 to 2 feet.
nearshore waters a light chop.
SUNDAY NIGHT THROUGH MONDAY NIGHT
Northeast to east winds 10
to 15 knots. Seas 1 to 2 feet. Nearshore waters a light to
moderate chop.
GMZ042-043-211545
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
433 AM EST Thu Nov 21 2024
SMALL CRAFT SHOULD EXERCISE CAUTION UNTIL WINDS DECREASE
SMALL CRAFT ADVISORY WILL LIKELY BE REQUIRED TONIGHT
TODAY
Northwest to north winds 15 to 20 knots, becoming
northwest 10 to 15 knots. Seas 1 to 2 feet. Nearshore waters
choppy, becoming a light to moderate chop.
TONIGHT
Northwest to north winds increasing to near 20 knots.
Seas 2 to 3 feet. Nearshore waters becoming rough.
FRIDAY
Northwest to north winds near 20 knots, decreasing to
near 15 knots. Seas 1 to 2 feet. Nearshore waters rough, becoming
a moderate chop.
FRIDAY NIGHT
Northwest to north winds near 15 knots. Seas 1 to
2 feet. Nearshore waters a moderate chop.
SATURDAY
North winds near 15 knots, decreasing to around 10
knots. Seas 1 to 2 feet. Nearshore waters a moderate chop,
becoming a light chop.
SATURDAY NIGHT
North to northeast winds near 10 knots. Seas
around 1 foot. Nearshore waters a light chop.
SUNDAY
Northeast winds near 10 knots. Seas around 1 foot.
Nearshore waters a light chop.
SUNDAY NIGHT AND MONDAY
Northeast to east winds 10 to 15
knots. Seas 1 to 2 feet. Nearshore waters a light to moderate
chop.
MONDAY NIGHT
Northeast to east winds 10 to 15 knots. Seas
around 2 feet. Nearshore waters a light to moderate chop.
GMZ044-211545
Hawk Channel from west end of Seven Mile Bridge to Halfmoon Shoal
out to the reef
433 AM EST Thu Nov 21 2024
SMALL CRAFT ADVISORY IN EFFECT
TODAY
Northwest to north winds near 20 knots. Seas 2 to
4 feet, occasionally to 5 feet, except 4 to 6 feet, occasionally
to 8 feet west of Cosgrove Shoal Light. Nearshore waters rough.
TONIGHT
Northwest to north winds near 20 knots. Seas 2 to
4 feet, occasionally to 5 feet, except 5 to 7 feet, occasionally
to 9 feet west of Cosgrove Shoal Light. Nearshore waters rough.
FRIDAY
Northwest to north winds near 20 knots, decreasing to
15 to 20 knots. Seas 2 to 3 feet, except 4 to 6 feet, occasionally
to 8 feet west of Cosgrove Shoal Light. Nearshore waters rough,
becoming choppy.
FRIDAY NIGHT
Northwest to north winds 15 to 20 knots,
decreasing to near 15 knots. Seas 2 to 3 feet, except 4 to 5
feet, occasionally to 6 feet west of Cosgrove Shoal Light.
Nearshore waters choppy, becoming a moderate chop.
SATURDAY
North winds near 15 knots, decreasing to 10 to 15
knots. Seas 2 to 3 feet, except 3 to 4 feet, occasionally to 5
feet west of Cosgrove Shoal Light. Nearshore waters a moderate
chop, becoming a light to moderate chop.
SATURDAY NIGHT
Northeast winds near 10 knots. Seas 1 to
2 feet, except 3 to 4 feet, occasionally to 5 feet west of
Cosgrove Shoal Light. Nearshore waters a light chop.
SUNDAY
Northeast to east winds near 10 knots. Seas 2 to 3
feet. Nearshore waters a light chop.
SUNDAY NIGHT
Northeast to east winds 10 to 15 knots. Seas 2 to
3 feet. Nearshore waters a light to moderate chop.
MONDAY
Northeast to east winds near 15 knots. Seas 2 to 3
feet. Nearshore waters a moderate chop.
MONDAY NIGHT
Northeast to east winds 10 to 15 knots. Seas 2 to
3 feet. Nearshore waters a light to moderate chop.
GMZ052-053-072-073-211545
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 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
433 AM EST Thu Nov 21 2024
SMALL CRAFT SHOULD EXERCISE CAUTION UNTIL WINDS DECREASE
SMALL CRAFT ADVISORY WILL LIKELY BE REQUIRED TONIGHT
TODAY
Northwest to north winds 15 to 20 knots. Seas 3 to
4 feet, occasionally to 5 feet. Wave Detail: North 3 feet at
5 seconds. Isolated showers.
TONIGHT
Northwest to north winds 15 to 20 knots, increasing to
near 20 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave
Detail: North 4 feet at 5 seconds.
FRIDAY
Northwest to north winds near 20 knots, decreasing to
near 15 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave
Detail: Northwest to north 5 feet at 7 seconds.
FRIDAY NIGHT
Northwest to north winds near 15 knots. Seas 3 to
5 feet, occasionally to 6 feet.
SATURDAY
North winds near 15 knots, decreasing to 10 to 15
knots. Seas 3 to 5 feet, occasionally to 6 feet, subsiding to 2
to 4 feet.
SATURDAY NIGHT
Northeast winds near 10 knots. Seas 2 to
3 feet.
SUNDAY
Northeast to east winds near 10 knots. Seas 2 to 3
feet.
SUNDAY NIGHT
Northeast to east winds 10 to 15 knots. Seas 2 to
3 feet.
MONDAY
Northeast to east winds near 15 knots. Seas 2 to 3
feet.
MONDAY NIGHT
Northeast to east winds near 15 knots. Seas 3 to
4 feet, occasionally to 5 feet.
GMZ054-055-074-075-211545
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 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
433 AM EST Thu Nov 21 2024
SMALL CRAFT ADVISORY IN EFFECT
TODAY
Northwest to north winds near 20 knots. Seas 5 to
7 feet, occasionally to 9 feet. Wave Detail: Northwest to north
6 feet at 7 seconds.
TONIGHT
Northwest to north winds near 20 knots. Seas 5 to
7 feet, occasionally to 9 feet. Wave Detail: Northwest to north
6 feet at 8 seconds.
FRIDAY
Northwest to north winds near 20 knots, decreasing to 15
to 20 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave
Detail: North to northeast 6 feet at 7 seconds.
FRIDAY NIGHT
Northwest to north winds 15 to 20 knots,
decreasing to near 15 knots. Seas 4 to 5 feet, occasionally to 6
feet.
SATURDAY
North winds near 15 knots, decreasing to 10 to 15
knots. Seas 3 to 5 feet, occasionally to 6 feet, subsiding to 2 to
4 feet.
SATURDAY NIGHT
Northeast winds near 10 knots. Seas 3 to
4 feet, occasionally to 5 feet.
SUNDAY
Northeast to east winds 10 to 15 knots. Seas around 3
feet.
SUNDAY NIGHT
Northeast to east winds 10 to 15 knots. Seas 3 to
4 feet, occasionally to 5 feet.
MONDAY AND MONDAY NIGHT
Northeast to east winds near 15
knots. Seas 3 to 4 feet, occasionally to 5 feet.
GMZ033-034-211545
Gulf waters from East Cape Sable to Chokoloskee 20 to 60 NM out
and beyond 5 fathoms
Gulf of Mexico including Dry Tortugas and Rebecca Shoal Channel
433 AM EST Thu Nov 21 2024
SMALL CRAFT ADVISORY IN EFFECT
TODAY
North winds 20 to 25 knots. Seas 5 to 8 feet,
occasionally to 10 feet. Wave Detail: Northwest to north 7 feet
at 7 seconds.
TONIGHT
Northwest to north winds near 20 knots. Seas 5 to
8 feet, occasionally to 10 feet. Wave Detail: Northwest 7 feet at
8 seconds.
FRIDAY
Northwest to north winds near 20 knots, decreasing to 15
to 20 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave
Detail: Northwest to north 6 feet at 7 seconds.
FRIDAY NIGHT
Northwest to north winds 15 to 20 knots,
decreasing to near 15 knots. Seas 4 to 6 feet, occasionally to 8
feet.
SATURDAY
North winds near 15 knots, decreasing to near 10
knots in the afternoon. Seas 3 to 5 feet, occasionally to 6 feet,
subsiding to 2 to 4 feet.
SATURDAY NIGHT
Northeast winds near 10 knots. Seas 2 to
4 feet, occasionally to 5 feet.
SUNDAY
Northeast to east winds near 10 knots. Seas 2 to 3
feet.
SUNDAY NIGHT THROUGH MONDAY NIGHT
Northeast to east winds 10
to 15 knots. Seas 1 to 2 feet.
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