Coastal Waters Forecast
Issued by NWS Key West, FL

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FZUS52 KKEY 011435
CWFKEY

Coastal Waters Forecast for the Florida Keys
National Weather Service Key West FL
1035 AM EDT Tue Oct 1 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.

GMZ005-012045-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
1035 AM EDT Tue Oct 1 2024

.SYNOPSIS...High pressure straddled across Florida will maintain
gentle to moderate breezes across the Florida Keys this afternoon
through Wednesday. Breezes will freshen Wednesday night through
Friday as an area of low pressure moves northwestward through the
Western Caribbean into the Gulf of Mexico. This low pressure
system may fester over the Gulf of Mexico for several days.

The Approximate Shoreward Edge of the Gulf Stream as of October 1...

25 NM South of Dry Tortugas Light...on Loggerhead Key.
15 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
14 NM South of Sand Key Light...off Key West.
13 NM South of Looe Key...off Big Pine Key.
15 NM South of Sombrero Key Light...off Marathon.
 8 NM Southeast of Alligator Reef Light...off Islamorada.
 3 NM Southeast of Molasses Reef Light...off Key Largo.
 3 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.

$$

GMZ031-012045-
Florida Bay including Barnes Sound, Blackwater Sound, and
Buttonwood Sound-
1035 AM EDT Tue Oct 1 2024

.THIS AFTERNOON...Southeast winds 5 to 10 knots. Bay waters smooth
to a light chop. Isolated showers and thunderstorms.
.TONIGHT AND WEDNESDAY...East to southeast winds 5 to 10 knots.
Bay waters smooth to a light chop. Isolated showers and
thunderstorms.
.WEDNESDAY NIGHT...East winds near 10 knots. Bay waters a light
chop. Scattered showers and isolated thunderstorms.
.THURSDAY...East winds 10 to 15 knots. Bay waters a light to
moderate chop. Scattered showers and thunderstorms.
.THURSDAY NIGHT THROUGH FRIDAY NIGHT...East winds 10 to 15 knots.
Bay waters a light to moderate chop. Scattered showers and
thunderstorms.
.SATURDAY...East to southeast winds near 10 knots. Bay waters a
light chop. Scattered showers and thunderstorms.
.SATURDAY NIGHT...East to southeast winds near 10 knots. Bay
waters a light chop. Scattered showers and isolated thunderstorms.

$$

GMZ032-035-012045-
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-
1035 AM EDT Tue Oct 1 2024

.THIS AFTERNOON...Southeast winds 5 to 10 knots. Seas around 1
foot. Nearshore waters smooth to a light chop. Isolated showers
and thunderstorms.
.TONIGHT AND WEDNESDAY...East to southeast winds 5 to 10 knots.
Seas 1 foot or less. Nearshore waters smooth to a light chop.
Isolated showers and thunderstorms.
.WEDNESDAY NIGHT...East winds near 10 knots. Seas around 1 foot.
Nearshore waters a light chop. Scattered showers and isolated
thunderstorms.
.THURSDAY...East winds 10 to 15 knots. Seas 1 to 2 feet.
Nearshore waters a light to moderate chop. Scattered showers and
thunderstorms.
.THURSDAY NIGHT...East to southeast winds 10 to 15 knots. Seas
1 to 2 feet. Nearshore waters a light to moderate chop. Scattered
showers and thunderstorms.
.FRIDAY...East to southeast winds near 15 knots. Seas 1 to 2
feet, except 2 to 3 feet west of the Marquesas Keys. Nearshore
waters a moderate chop. Scattered showers and thunderstorms.
.FRIDAY NIGHT...East winds 10 to 15 knots. Seas 1 to 2 feet.
Nearshore waters a light to moderate chop. Scattered showers and
thunderstorms.
.SATURDAY...East to southeast winds near 10 knots. Seas around
1 foot. Nearshore waters a light chop. Scattered showers and
thunderstorms.
.SATURDAY NIGHT...East to southeast winds near 10 knots. Seas
around 1 foot. Nearshore waters a light chop. Scattered showers
and isolated thunderstorms.

$$

GMZ042>044-012045-
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-
1035 AM EDT Tue Oct 1 2024

.THIS AFTERNOON...Southeast winds 5 to 10 knots. Seas 1 to 2
feet. Nearshore waters smooth to a light chop. Isolated showers
and thunderstorms.
.TONIGHT AND WEDNESDAY...East to southeast winds 5 to 10 knots.
Seas 1 to 2 feet. Nearshore waters smooth to a light chop.
Isolated showers and thunderstorms.
.WEDNESDAY NIGHT...East winds near 10 knots. Seas 1 to 2 feet.
Nearshore waters a light chop. Scattered showers and isolated
thunderstorms.
.THURSDAY...East winds 10 to 15 knots. Seas around 2 feet.
Nearshore waters a light to moderate chop. Scattered showers and
thunderstorms.
.THURSDAY NIGHT...East to southeast winds 10 to 15 knots. Seas
around 2 feet. Nearshore waters a light to moderate chop.
Scattered showers and thunderstorms.
.FRIDAY...East to southeast winds near 15 knots. Seas around 2
feet, except 2 to 3 feet west of Cosgrove Shoal Light. Nearshore
waters a moderate chop. Scattered showers and thunderstorms.
.FRIDAY NIGHT...East winds 10 to 15 knots. Seas around 2 feet.
Nearshore waters a light to moderate chop. Scattered showers and
thunderstorms.
.SATURDAY...East to southeast winds near 10 knots. Seas 1 to
2 feet. Nearshore waters a light chop. Scattered showers and
thunderstorms.
.SATURDAY NIGHT...East to southeast winds near 10 knots. Seas
1 to 2 feet. Nearshore waters a light chop. Scattered showers and
isolated thunderstorms.

$$

GMZ052>055-072>075-012045-
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-
1035 AM EDT Tue Oct 1 2024

.THIS AFTERNOON...Southeast winds near 10 knots, decreasing to 5
to 10 knots. Seas around 2 feet. Wave Detail: East to southeast 2
feet at 4 seconds. Isolated showers and thunderstorms.
.TONIGHT...East to southeast winds 5 to 10 knots. Seas 1 to
2 feet. Wave Detail: East 2 feet at 4 seconds. Isolated showers
and thunderstorms.
.WEDNESDAY...East to southeast winds 5 to 10 knots. Seas 1 to 2
feet. Wave Detail: East 1 foot at 4 seconds. Scattered showers and
isolated thunderstorms.
.WEDNESDAY NIGHT...East winds near 10 knots. Seas around 2 feet.
Scattered showers and isolated thunderstorms.
.THURSDAY...East winds 10 to 15 knots. Seas 2 to 3 feet. Numerous
showers and scattered thunderstorms.
.THURSDAY NIGHT...East to southeast winds 10 to 15 knots. Seas
2 to 3 feet. Scattered showers and thunderstorms.
.FRIDAY...East to southeast winds near 15 knots. Seas 2 to 4
feet. Scattered showers and thunderstorms.
.FRIDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet.
Scattered showers and thunderstorms.
.SATURDAY...East to southeast winds near 10 knots. Seas around
2 feet. Scattered showers and thunderstorms.
.SATURDAY NIGHT...East to southeast winds 10 to 15 knots. Seas
2 to 3 feet. Scattered showers and isolated thunderstorms.

$$

GMZ033-034-012045-
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-
1035 AM EDT Tue Oct 1 2024

.THIS AFTERNOON...Southeast winds 5 to 10 knots. Seas 1 to 2
feet. Wave Detail: Southeast 2 feet at 4 seconds. Scattered
showers and isolated thunderstorms.
.TONIGHT...Southeast winds 5 to 10 knots. Seas 1 to 2 feet. Wave
Detail: East to southeast 1 foot at 3 seconds. Isolated showers
and thunderstorms.
.WEDNESDAY...East to southeast winds 5 to 10 knots. Seas around
1 foot. Wave Detail: East to southeast 1 foot at 3 seconds.
Isolated showers and thunderstorms.
.WEDNESDAY NIGHT...East to southeast winds near 10 knots. Seas 1
to 2 feet. Scattered showers and isolated thunderstorms.
.THURSDAY...East to southeast winds near 15 knots. Seas 2 to 3
feet. Scattered showers and thunderstorms.
.THURSDAY NIGHT AND FRIDAY...East to southeast winds near 15
knots. Seas 2 to 3 feet. Numerous showers and scattered
thunderstorms.
.FRIDAY NIGHT AND SATURDAY ...East to southeast winds 10 to 15
knots. Seas around 2 feet. Numerous showers and scattered
thunderstorms.
.SATURDAY NIGHT...East to southeast winds near 15 knots. Seas 2
to 3 feet. Scattered showers and isolated thunderstorms.

$$