View the latest observations near Atlantic Tropical Storm Ophelia.
National Weather Service Marine Forecast FZUS52 KKEY
FZUS52 KKEY 230218
CWFKEY
Coastal Waters Forecast for the Florida Keys
National Weather Service Key West FL
1018 PM EDT Fri Sep 22 2023
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.
GMZ005-230900
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
1018 PM EDT Fri Sep 22 2023
SYNOPSIS
Tropical Storm Ophelia will approach the coast of
North Carolina overnight, then continue into the Delmarva
Peninsula Saturday and Sunday. Meanwhile, a weak and disorganized
trough axis will develop near and west of the Florida Keys.
Breezes will be gentle to moderate at times through Sunday night,
accompanied by unsettled weather featuring thundery squalls and
locally heavy rainfall. Near to above normal rain and thunder
chances will continue into next week with light to gentle easterly
breezes.
The Approximate Shoreward Edge of the Gulf Stream as of September 21...
60 NM South of Dry Tortugas Light...on Loggerhead Key. 39 NM South of Cosgrove Shoal Light...off the Marquesas Keys. 33 NM South of Sand Key Light...off Key West. 26 NM South of Looe Key...off Big Pine Key. 21 NM South of Sombrero Key Light...off Marathon. 38 NM Southeast of Alligator Reef Light...off Islamorada.
Gulf Stream Information Courtesy of the Naval Oceanographic Office.
GMZ031-230900
Florida Bay including Barnes Sound, Blackwater Sound, and
Buttonwood Sound
1018 PM EDT Fri Sep 22 2023
OVERNIGHT
Northeast to east winds near 10 knots. Bay waters a
light chop. Winds higher and bay waters rough near numerous
showers and scattered thunderstorms.
SATURDAY
Northeast to east winds near 10 knots. Bay waters a
light chop. Numerous showers and scattered thunderstorms.
SATURDAY NIGHT
East winds 10 to 15 knots. Bay waters a light
to moderate chop. Numerous showers and scattered thunderstorms.
SUNDAY
East to southeast winds near 10 knots. Bay waters a
light chop. Numerous showers and scattered thunderstorms.
SUNDAY NIGHT
East to southeast winds near 10 knots. Bay waters
a light chop. Scattered showers and thunderstorms.
MONDAY
Southeast winds 5 to 10 knots. Bay waters smooth to a
light chop. Scattered showers and thunderstorms.
MONDAY NIGHT
East to southeast winds 5 to 10 knots. Bay waters
smooth to a light chop. Scattered showers and thunderstorms.
TUESDAY
East winds 5 to 10 knots. Bay waters smooth to a light
chop. Scattered showers and thunderstorms.
TUESDAY NIGHT
East winds near 10 knots. Bay waters a light
chop. Scattered showers and thunderstorms.
WEDNESDAY
Northeast to east winds 5 to 10 knots. Bay waters
smooth to a light chop. Scattered showers and thunderstorms.
WEDNESDAY NIGHT
Northeast to east winds near 10 knots. Bay
waters a light chop. Scattered showers and thunderstorms.
GMZ032-035-230900
Bayside and Gulf side from Craig Key to west end of Seven Mile
Bridge
Gulf of Mexico from west end of Seven Mile Bridge to Halfmoon
Shoal out to 5 Fathoms
1018 PM EDT Fri Sep 22 2023
OVERNIGHT
Northeast to east winds near 10 knots. Seas building
to 1 to 2 feet. Nearshore waters a light chop. Winds and seas
higher near numerous showers and scattered thunderstorms.
SATURDAY
Northeast to east winds near 10 knots. Seas 1 to 2
feet. Nearshore waters a light chop. Numerous showers and
scattered thunderstorms.
SATURDAY NIGHT
East winds 10 to 15 knots. Seas around 2 feet.
Nearshore waters a light to moderate chop. Numerous showers and
scattered thunderstorms.
SUNDAY
East to southeast winds near 10 knots. Seas 1 to 2 feet,
subsiding to around 1 foot. Nearshore waters a light chop.
Numerous showers and scattered thunderstorms.
SUNDAY NIGHT
East to southeast winds near 10 knots. Seas
around 1 foot. Nearshore waters a light chop. Scattered showers
and thunderstorms.
MONDAY
Southeast winds 5 to 10 knots. Seas 1 foot or less.
Nearshore waters smooth to a light chop. Scattered showers and
thunderstorms.
MONDAY NIGHT
East to southeast winds 5 to 10 knots. Seas
1 foot or less. Nearshore waters smooth to a light chop.
Scattered showers and thunderstorms.
TUESDAY
East winds 5 to 10 knots. Seas 1 foot or less.
Nearshore waters smooth to a light chop. Scattered showers and
thunderstorms.
TUESDAY NIGHT
East winds near 10 knots. Seas around 1 foot.
Nearshore waters a light chop. Scattered showers and
thunderstorms.
WEDNESDAY
Northeast to east winds 5 to 10 knots. Seas 1 foot
or less. Nearshore waters smooth to a light chop. Scattered
showers and thunderstorms.
WEDNESDAY NIGHT
Northeast to east winds near 10 knots. Seas
around 1 foot. Nearshore waters a light chop. Scattered showers
and thunderstorms.
GMZ042>044-230900
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 PM EDT Fri Sep 22 2023
OVERNIGHT
Northeast to east winds near 10 knots. Seas 1 to 2
feet. Nearshore waters a light chop. Winds and seas higher near
numerous showers and scattered thunderstorms.
SATURDAY
East winds near 10 knots. Seas 1 to 2 feet. Nearshore
waters a light chop. Numerous showers and scattered
thunderstorms.
SATURDAY NIGHT
East winds 10 to 15 knots. Seas 1 to 3 feet.
Nearshore waters a light to moderate chop. Numerous showers and
scattered thunderstorms.
SUNDAY
East to southeast winds near 10 knots. Seas 1 to 2
feet. Nearshore waters a light chop. Numerous showers and
scattered thunderstorms.
SUNDAY NIGHT
East to southeast winds near 10 knots. Seas
1 to 2 feet. Nearshore waters a light chop. Scattered showers and
thunderstorms.
MONDAY
Southeast winds 5 to 10 knots. Seas around 1 foot.
Nearshore waters smooth to a light chop. Scattered showers and
thunderstorms.
MONDAY NIGHT
East to southeast winds near 10 knots. Seas
1 to 2 feet. Nearshore waters a light chop. Scattered showers and
thunderstorms.
TUESDAY
East winds 5 to 10 knots. Seas around 1 foot.
Nearshore waters smooth to a light chop. Scattered showers and
thunderstorms.
TUESDAY NIGHT
East winds near 10 knots. Seas 1 to 2 feet.
Nearshore waters a light chop. Scattered showers and
thunderstorms.
WEDNESDAY
Northeast to east winds 5 to 10 knots. Seas around
1 foot. Nearshore waters smooth to a light chop. Scattered
showers and thunderstorms.
WEDNESDAY NIGHT
Northeast to east winds near 10 knots. Seas
1 to 2 feet. Nearshore waters a light chop. Scattered showers and
thunderstorms.
GMZ052>055-072>075-230900
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 PM EDT Fri Sep 22 2023
OVERNIGHT
Northeast to east winds near 10 knots. Seas 1 to 2
feet, building to around 2 feet. Winds and seas higher near
numerous showers and scattered thunderstorms.
SATURDAY
East winds near 10 knots. Seas around 2 feet, except
2 to 3 feet due to north swell southeast of the Upper Keys.
Numerous showers and scattered thunderstorms.
SATURDAY NIGHT
East to southeast winds 10 to 15 knots. Seas
2 to 3 feet, except 3 to 4 feet due to north swell southeast of
the Upper Keys. Numerous showers and scattered thunderstorms.
SUNDAY
East to southeast winds near 10 knots. Seas around 2
feet. Numerous showers and scattered thunderstorms.
SUNDAY NIGHT
East to southeast winds near 10 knots. Seas
around 2 feet. Scattered showers and thunderstorms.
MONDAY
Southeast winds 5 to 10 knots. Seas 1 to 2 feet.
Scattered showers and thunderstorms.
MONDAY NIGHT
East to southeast winds near 10 knots. Seas
around 2 feet. Scattered showers and thunderstorms.
TUESDAY
East winds 5 to 10 knots. Seas 1 to 2 feet. Scattered
showers and thunderstorms.
TUESDAY NIGHT
East winds near 10 knots. Seas around 2 feet.
Scattered showers and thunderstorms.
WEDNESDAY
Northeast to east winds 5 to 10 knots. Seas 1 to 2
feet. Scattered showers and thunderstorms.
WEDNESDAY NIGHT
East winds near 10 knots. Seas around 2 feet.
Scattered showers and thunderstorms.
GMZ033-034-230900
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
1018 PM EDT Fri Sep 22 2023
OVERNIGHT
Northeast winds 5 to 10 knots, becoming northeast to
east and increasing to 10 to 15 knots. Seas around 1 foot,
building to 2 to 3 feet. Winds and seas higher near numerous
showers and scattered thunderstorms.
SATURDAY AND SATURDAY NIGHT
East winds 10 to 15 knots. Seas 2
to 3 feet. Numerous showers and scattered thunderstorms.
SUNDAY
East winds 10 to 15 knots, decreasing to near 10 knots
in the afternoon. Seas 1 to 3 feet, subsiding to 1 to 2 feet.
Numerous showers and scattered thunderstorms.
SUNDAY NIGHT
East to southeast winds 10 to 15 knots. Seas
1 to 3 feet. Numerous showers and scattered thunderstorms.
MONDAY
Southeast winds near 10 knots. Seas 1 to 2 feet.
Scattered showers and thunderstorms.
MONDAY NIGHT
East to southeast winds 5 to 10 knots. Seas
around 1 foot. Scattered showers and thunderstorms.
TUESDAY
East winds 5 to 10 knots. Seas around 1 foot.
Scattered showers and thunderstorms.
TUESDAY NIGHT
East to southeast winds 5 to 10 knots. Seas
around 1 foot. Scattered showers and thunderstorms.
WEDNESDAY
East winds 5 to 10 knots. Seas around 1 foot.
Scattered showers and thunderstorms.
WEDNESDAY NIGHT
Northeast to east winds near 10 knots. Seas 1
to 2 feet. Scattered showers and thunderstorms.