Coastal Waters Forecast
Issued by NWS Key West, FL

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FZUS52 KKEY 100904
CWFKEY

Coastal Waters Forecast for the Florida Keys
National Weather Service Key West FL
504 AM EDT Thu Oct 10 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.

GMZ005-101515-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
504 AM EDT Thu Oct 10 2024

.SYNOPSIS...Hurricane Milton continues to move away from the area
and is about to emerge back out over Atlantic east of the Space
Coast. Breezes have come down substantially through the night and
will continue to slacken through today. All Tropical Warnings have
been discontinued, replaced by a Small Craft Advisory. While
these advisories will likely come down in the not to distant
future, they may be required again for the eastern Florida Straits
due to an incoming northerly swell. Surface high pressure will
move across the Tennessee Valley and then off the Southeast Coast
over the weekend and into early next week. As a result, expect
gentle to moderate northeast to east breezes through the weekend.
However, there may be a period of moderate to fresh breezes Friday
and Friday night for the offshore Gulf waters.

The Approximate Shoreward Edge of the Gulf Stream as of October
5...

16 NM South of Dry Tortugas Light...on Loggerhead Key.
10 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
 7 NM South of Sand Key Light...off Key West.
 8 NM South of Looe Key...off Big Pine Key.
12 NM South of Sombrero Key Light...off Marathon.
 8 NM Southeast of Alligator Reef Light...off Islamorada.
 5 NM Southeast of Molasses Reef Light...off Key Largo.
 8 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.

$$

GMZ031-101515-
Florida Bay including Barnes Sound, Blackwater Sound, and
Buttonwood Sound-
504 AM EDT Thu Oct 10 2024

...SMALL CRAFT ADVISORY IN EFFECT...

.TODAY...Southwest to west winds 20 to 25 knots, becoming west to
northwest and decreasing to 15 to 20 knots. Bay waters very
rough, becoming choppy. Isolated showers.
.TONIGHT...West to northwest winds near 15 knots, becoming
northwest to north and decreasing to 10 to 15 knots. Bay waters a
moderate chop, becoming a light to moderate chop. Isolated
showers.
.FRIDAY...North to northeast winds 10 to 15 knots. Bay waters a
light to moderate chop. Isolated showers. Isolated thunderstorms
in the afternoon.
.FRIDAY NIGHT...Northeast winds near 15 knots. Bay waters a moderate
chop. Scattered showers and isolated thunderstorms.
.SATURDAY...Northeast to east winds 10 to 15 knots. Bay waters a
light to moderate chop. Scattered showers and isolated
thunderstorms.
.SATURDAY NIGHT...East winds 10 to 15 knots, decreasing to near 10
knots. Bay waters a light to moderate chop, becoming a light
chop. Scattered showers and isolated thunderstorms.
.SUNDAY...East winds near 10 knots, increasing to 10 to 15 knots.
Bay waters a light chop, becoming a light to moderate chop.
Scattered showers and isolated thunderstorms.
.SUNDAY NIGHT...East winds near 10 knots, becoming northeast to
east near 5 knots. Bay waters a light chop, becoming smooth.
Scattered showers and isolated thunderstorms.
.MONDAY...Northeast to east winds near 5 knots. Bay waters
smooth. Scattered showers and isolated thunderstorms.
.MONDAY NIGHT...Northeast to east winds 5 to 10 knots. Bay waters
smooth to a light chop. Scattered showers and isolated
thunderstorms.

$$

GMZ032-035-101515-
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-
504 AM EDT Thu Oct 10 2024

...SMALL CRAFT ADVISORY IN EFFECT...

.TODAY...West to northwest winds near 20 knots, decreasing to 15
to 20 knots. Seas 3 to 5 feet, occasionally to 6 feet, subsiding
to 2 to 3 feet. West of the Marquesas Keys, seas 7 to 9 feet,
occasionally to 11 feet, subsiding to 4 to 6 feet, occasionally to
8 feet. Nearshore waters rough, becoming choppy. Isolated
showers.
.TONIGHT...Northwest winds near 15 knots, becoming north. Seas 2
to 3 feet. West of the Marquesas Keys, seas 4 to 6 feet,
occasionally to 7 feet, subsiding to 3 to 5 feet, occasionally to
6 feet. Nearshore waters a moderate chop. Isolated showers.
.FRIDAY...North to northeast winds near 15 knots, becoming
northeast and decreasing to 10 to 15 knots. Seas 2 to 3 feet,
subsiding to 1 to 3 feet. West of the Marquesas Keys, seas 3 to 5
feet, occasionally to 6 feet, subsiding to 3 to 4 feet,
occasionally to 5 feet. Nearshore waters a moderate chop, becoming
a light to moderate chop. Isolated showers. Isolated
thunderstorms in the afternoon.
.FRIDAY NIGHT...Northeast winds 15 to 20 knots. Seas 1 to 3 feet,
except 3 to 4 feet, occasionally to 5 feet west of the Marquesas
Keys. Nearshore waters choppy. Scattered showers and isolated
thunderstorms.
.SATURDAY...Northeast to east winds near 15 knots, decreasing to 10
to 15 knots. Seas 1 to 3 feet, subsiding to 1 to 2 feet. West of
the Marquesas Keys, seas 3 to 4 feet, occasionally to 5 feet,
subsiding to 2 to 3 feet. Nearshore waters a moderate chop,
becoming a light to moderate chop. Scattered showers and isolated
thunderstorms.
.SATURDAY NIGHT...East winds 10 to 15 knots. Seas 1 to 2 feet,
except subsiding to around 2 feet west of the Marquesas Keys.
Nearshore waters a light to moderate chop. Scattered showers and
isolated thunderstorms.
.SUNDAY...East winds 10 to 15 knots. Seas 1 to 2 feet. Nearshore
waters a light to moderate chop. Scattered showers and isolated
thunderstorms.
.SUNDAY NIGHT...East winds near 10 knots, decreasing to 5 to 10
knots. Seas 1 to 2 feet, subsiding to 1 foot or less. Nearshore
waters a light chop, becoming smooth to a light chop. Scattered
showers and isolated thunderstorms.
.MONDAY...Northeast to east winds 5 to 10 knots. Seas 1 foot or
less. Nearshore waters smooth to a light chop. Scattered showers
and isolated thunderstorms.
.MONDAY NIGHT...East winds 5 to 10 knots. Seas 1 foot or less.
Nearshore waters smooth to a light chop. Scattered showers and
isolated thunderstorms.

$$

GMZ042-101515-
Hawk Channel from Ocean Reef to Craig Key out to the reef-
504 AM EDT Thu Oct 10 2024

...SMALL CRAFT ADVISORY IN EFFECT...

.TODAY...Southwest to west winds 20 to 25 knots, becoming west to
northwest and decreasing to 15 to 20 knots. Seas 3 to 5 feet,
occasionally to 6 feet, subsiding to 2 to 3 feet. Nearshore waters
very rough, becoming choppy. Isolated showers.
.TONIGHT...West to northwest winds near 15 knots, becoming
northwest to north. Seas 2 to 3 feet. Nearshore waters a moderate
chop. Isolated showers.
.FRIDAY...North to northeast winds near 15 knots. Seas 2 to
3 feet. Nearshore waters a moderate chop. Isolated showers.
Isolated thunderstorms in the afternoon.
.FRIDAY NIGHT...Northeast winds 15 to 20 knots. Seas 2 to 4 feet,
occasionally to 5 feet. Nearshore waters choppy. Scattered
showers and isolated thunderstorms.
.SATURDAY...Northeast to east winds near 15 knots. Seas 2 to
3 feet. Nearshore waters a moderate chop. Scattered showers and
isolated thunderstorms.
.SATURDAY NIGHT...East winds 10 to 15 knots, decreasing to near 10
knots. Seas 2 to 3 feet, subsiding to 1 to 2 feet. Nearshore
waters a light to moderate chop, becoming a light chop. Scattered
showers and isolated thunderstorms.
.SUNDAY...East winds near 10 knots, increasing to near 15 knots.
Seas around 2 feet. Nearshore waters a light chop, becoming a
moderate chop. Scattered showers and isolated thunderstorms.
.SUNDAY NIGHT...East to southeast winds near 10 knots, becoming
east and decreasing to near 5 knots. Seas 1 to 2 feet, subsiding
to around 1 foot. Nearshore waters a light chop, becoming smooth.
Scattered showers and isolated thunderstorms.
.MONDAY AND MONDAY NIGHT...Northeast to east winds near 5 knots.
Seas around 1 foot. Nearshore waters smooth. Scattered showers
and isolated thunderstorms.

$$

GMZ043-044-101515-
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-
504 AM EDT Thu Oct 10 2024

...SMALL CRAFT ADVISORY IN EFFECT...

.TODAY...West winds near 20 knots, decreasing to 15 to 20 knots.
Seas 3 to 5 feet, occasionally to 6 feet. West of Cosgrove Shoal
Light, seas 5 to 7 feet, occasionally to 9 feet, subsiding to 4 to
6 feet, occasionally to 7 feet. Nearshore waters rough, becoming
choppy. Isolated showers.
.TONIGHT...Northwest to north winds near 15 knots. Seas 2 to
3 feet, except 4 to 5 feet, occasionally to 6 feet west of
Cosgrove Shoal Light. Nearshore waters a moderate chop. Isolated
showers.
.FRIDAY...North to northeast winds near 15 knots. Seas 2 to 3
feet, except 4 to 5 feet, occasionally to 6 feet west of Cosgrove
Shoal Light. Nearshore waters a moderate chop. Isolated showers
and thunderstorms.
.FRIDAY NIGHT...Northeast winds near 15 knots, increasing to 15
to 20 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 choppy. Scattered showers and isolated
thunderstorms.
.SATURDAY...Northeast to east winds near 15 knots, decreasing to
10 to 15 knots. Seas 1 to 2 feet, except 2 to 4 feet,
occasionally to 5 feet west of Cosgrove Shoal Light. Nearshore
waters a moderate chop, becoming a light to moderate chop.
Scattered showers and isolated thunderstorms.
.SATURDAY NIGHT...East winds 10 to 15 knots. Seas subsiding to
around 2 feet. Nearshore waters a light to moderate chop.
Scattered showers and isolated thunderstorms.
.SUNDAY...East winds 10 to 15 knots. Seas 1 to 2 feet. Nearshore
waters a light to moderate chop. Scattered showers and isolated
thunderstorms.
.SUNDAY NIGHT...East winds 5 to 10 knots. Seas subsiding to around
1 foot. Nearshore waters smooth to a light chop. Scattered
showers and isolated thunderstorms.
.MONDAY...Northeast to east winds 5 to 10 knots. Seas around
1 foot. Nearshore waters smooth to a light chop. Scattered
showers and isolated thunderstorms.
.MONDAY NIGHT...East winds near 5 knots. Seas around 1 foot.
Nearshore waters smooth. Scattered showers and isolated
thunderstorms.

$$

GMZ052-072-101515-
Straits of Florida from Ocean Reef to Craig Key out 20 NM-
Straits of Florida from Ocean Reef to Craig Key 20 to 60 NM out-
504 AM EDT Thu Oct 10 2024

...SMALL CRAFT ADVISORY IN EFFECT...

.TODAY...Southwest to west winds 20 to 25 knots, becoming west and
decreasing to 15 to 20 knots. Seas 5 to 7 feet, occasionally to 9
feet, subsiding to 4 to 5 feet, occasionally to 6 feet. Wave
Detail: Southwest to west 7 feet at 8 seconds and southeast 2 feet
at 7 seconds, becoming southwest to west 5 feet at 8 seconds and
southeast 1 foot at 7 seconds. Scattered showers.
.TONIGHT...West to northwest winds near 15 knots, becoming
northwest to north and decreasing to 10 to 15 knots. Seas 2 to 4
feet, occasionally to 5 feet. Wave Detail: West to northwest 4
feet at 7 seconds and north to northeast 1 foot at 13 seconds.
Scattered showers.
.FRIDAY...North to northeast winds 10 to 15 knots, becoming
northeast and increasing to near 15 knots. Seas 5 to 8 feet,
occasionally to 10 feet due to northeast swell. Wave Detail:
North to northeast 7 feet at 13 seconds and northwest 4 feet at 7
seconds. Scattered showers and isolated thunderstorms.
.FRIDAY NIGHT...Northeast to east winds near 15 knots. Seas 5 to
7 feet, occasionally to 9 feet due to northeast swell. Scattered
showers and isolated thunderstorms.
.SATURDAY...Northeast to east winds 10 to 15 knots. Seas 4 to
6 feet, occasionally to 8 feet due to northeast swell. Scattered
showers and isolated thunderstorms.
.SATURDAY NIGHT...East winds 10 to 15 knots, decreasing to near 10
knots. Seas 3 to 4 feet, occasionally to 5 feet. Scattered
showers and isolated thunderstorms.
.SUNDAY...East winds near 10 knots, increasing to 10 to 15 knots.
Seas 2 to 3 feet. Scattered showers and isolated thunderstorms.
.SUNDAY NIGHT...East to southeast winds 10 to 15 knots, decreasing
to 5 to 10 knots. Seas 2 to 3 feet. Numerous showers and isolated
thunderstorms.
.MONDAY...Northeast to east winds 5 to 10 knots. Seas 1 to 2
feet. Scattered showers and isolated thunderstorms.
.MONDAY NIGHT...East winds 5 to 10 knots. Seas 1 to 2 feet.
Numerous showers and isolated thunderstorms.

$$

GMZ053>055-073>075-101515-
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 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-
504 AM EDT Thu Oct 10 2024

...SMALL CRAFT ADVISORY IN EFFECT...

.TODAY...West to northwest winds near 20 knots, becoming northwest
to north and decreasing to near 15 knots. Seas 6 to 9 feet,
occasionally to 11 feet, subsiding to 5 to 7 feet, occasionally to
9 feet. Wave Detail: Northwest 9 feet at 12 seconds and southwest
to west 8 feet at 7 seconds, becoming west 7 feet at 7 seconds
and northwest 7 feet at 11 seconds. Scattered showers.
.TONIGHT...Northwest to north winds near 15 knots, becoming north
to northeast. Seas 4 to 7 feet, occasionally to 8 feet. Wave
Detail: Northwest 6 feet at 8 seconds. Scattered showers.
.FRIDAY...North to northeast winds near 15 knots, becoming
northeast. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail:
Northwest to north 5 feet at 8 seconds and north to northeast 2
feet at 3 seconds. Scattered showers and isolated thunderstorms.
.FRIDAY NIGHT...Northeast winds near 15 knots. Seas 3 to 5 feet,
occasionally to 6 feet. Numerous showers and isolated
thunderstorms.
.SATURDAY...Northeast to east winds near 15 knots, decreasing to
10 to 15 knots. Seas 3 to 4 feet, occasionally to 5 feet.
Scattered showers and isolated thunderstorms.
.SATURDAY NIGHT...East winds 10 to 15 knots, decreasing to near 10
knots. Seas 2 to 4 feet, occasionally to 5 feet, subsiding to 2
to 3 feet. Numerous showers and isolated thunderstorms.
.SUNDAY...East winds near 10 knots. Seas 2 to 3 feet. Numerous
showers and isolated thunderstorms.
.SUNDAY NIGHT...East to southeast winds 5 to 10 knots. Seas 1 to
2 feet. Numerous showers and isolated thunderstorms.
.MONDAY...Northeast to east winds near 5 knots, increasing to 5
to 10 knots. Seas 1 to 2 feet. Numerous showers and isolated
thunderstorms.
.MONDAY NIGHT...East winds 5 to 10 knots. Seas 1 to 2 feet.
Numerous showers and isolated thunderstorms.

$$

GMZ033-034-101515-
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-
504 AM EDT Thu Oct 10 2024

...SMALL CRAFT ADVISORY IN EFFECT...

.TODAY...West to northwest winds 20 to 25 knots, becoming
northwest to north and decreasing to 15 to 20 knots. Seas 7 to 9
feet, occasionally to 11 feet, subsiding to 5 to 7 feet,
occasionally to 9 feet. Wave Detail: Northwest 9 feet at 11
seconds and west 8 feet at 7 seconds, becoming northwest 7 feet at
9 seconds. Isolated showers.
.TONIGHT...North winds 15 to 20 knots, becoming north to northeast.
Seas 5 to 7 feet, occasionally to 9 feet. Wave Detail: Northwest
7 feet at 8 seconds. Isolated showers.
.FRIDAY...North to northeast winds 15 to 20 knots, becoming
northeast and decreasing to near 15 knots. Seas 4 to 6 feet,
occasionally to 8 feet, subsiding to 3 to 5 feet, occasionally to
7 feet. Wave Detail: Northwest to north 6 feet at 7 seconds.
Isolated showers and thunderstorms.
.FRIDAY NIGHT...Northeast to east winds 15 to 20 knots. Seas 3 to
5 feet, occasionally to 6 feet. Scattered showers and isolated
thunderstorms.
.SATURDAY...Northeast to east winds 15 to 20 knots, decreasing to
10 to 15 knots in the afternoon. Seas 3 to 4 feet, occasionally
to 5 feet, subsiding to 2 to 3 feet. Scattered showers and
isolated thunderstorms.
.SATURDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet.
Scattered showers and isolated thunderstorms.
.SUNDAY...East winds 10 to 15 knots. Seas around 2 feet.
Scattered showers and isolated thunderstorms.
.SUNDAY NIGHT...East winds 10 to 15 knots, becoming northeast to
east and decreasing to near 10 knots. Seas subsiding to 1 to 2
feet. Scattered showers and isolated thunderstorms.
.MONDAY...Northeast to east winds near 10 knots. Seas 1 to 2
feet. Scattered showers and isolated thunderstorms.
.MONDAY NIGHT...Northeast to east winds 5 to 10 knots. Seas
around 1 foot. Scattered showers and isolated thunderstorms.

$$

MJV