Coastal Waters Forecast
Issued by NWS Key West, FL

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FZUS52 KKEY 170831
CWFKEY

Coastal Waters Forecast for the Florida Keys
National Weather Service Key West FL
431 AM EDT Fri May 17 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.

GMZ005-171445-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
431 AM EDT Fri May 17 2024

.SYNOPSIS...A weak frontal boundary to the north of the Florida
Keys interacting with an area of high pressure in the western
North Atlantic will result in a chaotic wind forecast through the
weekend. Breezes will tend to peak in the evening and overnight
hours, and then lull in the afternoon hours.

The Approximate Shoreward Edge of the Gulf Stream as of May 15,
2024...

49 NM South of Dry Tortugas Light...on Loggerhead Key.
32 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
24 NM South of Sand Key Light...off Key West.
27 NM South of Looe Key...off Big Pine Key.
29 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.

Gulf Stream Information Courtesy of the National Weather Service in
Key West.

$$

GMZ031-171445-
Florida Bay including Barnes Sound, Blackwater Sound, and
Buttonwood Sound-
431 AM EDT Fri May 17 2024

.TODAY...South winds 5 to 10 knots, increasing to near 10 knots.
Bay waters smooth to a light chop, becoming a light chop.
.TONIGHT...Southeast winds near 10 knots. Bay waters a light
chop.
.SATURDAY...Southeast to south winds near 10 knots. Bay waters a
light chop.
.SATURDAY NIGHT...Southeast to south winds 10 to 15 knots. Bay
waters a light to moderate chop. Isolated showers.
.SUNDAY...South to southwest winds decreasing to 5 to 10 knots.
Bay waters becoming smooth to a light chop. Isolated showers and
thunderstorms.
.SUNDAY NIGHT...Southwest to west winds near 5 knots. Bay waters
smooth. Scattered showers and isolated thunderstorms.
.MONDAY...Southwest to west winds increasing to near 10 knots.
Bay waters becoming a light chop. Scattered showers and isolated
thunderstorms.
.MONDAY NIGHT...West to northwest 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.
.TUESDAY...West to northwest winds near 10 knots, becoming
southwest in the afternoon. Bay waters a light chop. Scattered
showers and isolated thunderstorms.
.TUESDAY NIGHT...West winds 5 to 10 knots. Bay waters smooth to a
light chop. Isolated showers and thunderstorms.

$$

GMZ032-035-171445-
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-
431 AM EDT Fri May 17 2024

.TODAY...Southeast to south winds 5 to 10 knots. Seas 1 foot or
less. Nearshore waters smooth to a light chop.
.TONIGHT...Southeast winds increasing to 10 to 15 knots. Seas 1
to 2 feet. Nearshore waters becoming a light to moderate chop.
.SATURDAY...Southeast to south winds 10 to 15 knots, decreasing
to 5 to 10 knots in the afternoon. Seas 1 to 2 feet. Nearshore
waters a light to moderate chop, becoming smooth to a light chop.
Isolated showers.
.SATURDAY NIGHT...Southeast to south increasing to 10 to 15 knots.
Seas 1 to 2 feet. Nearshore waters becoming a light to moderate
chop. Isolated showers.
.SUNDAY...South to southwest winds decreasing to 5 to 10 knots.
Seas subsiding to 1 foot or less. Nearshore waters becoming
smooth to a light chop. Isolated showers and thunderstorms.
.SUNDAY NIGHT...West winds near 5 knots. Seas 1 foot or less.
Nearshore waters smooth. Scattered showers and isolated
thunderstorms.
.MONDAY...West winds 5 to 10 knots. Seas around 1 foot. Nearshore
waters smooth to a light chop. Scattered showers and isolated
thunderstorms.
.MONDAY NIGHT...Northwest winds near 10 knots. Seas 1 to 2 feet.
Nearshore waters a light chop. Scattered showers and isolated
thunderstorms.
.TUESDAY...West to northwest winds 5 to 10 knots. Seas around 1
foot. Nearshore waters smooth to a light chop. Isolated showers
and thunderstorms.
.TUESDAY NIGHT...Northwest winds 5 to 10 knots. Seas around 1
foot. Nearshore waters smooth to a light chop. Isolated showers
and thunderstorms.

$$

GMZ042>044-171445-
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-
431 AM EDT Fri May 17 2024

.TODAY...Southeast to south winds 5 to 10 knots. Seas 1 to 2
feet. Nearshore waters smooth to a light chop.
.TONIGHT...Southeast winds increasing to 10 to 15 knots. Seas
building to 2 to 3 feet. Nearshore waters becoming a light to
moderate chop.
.SATURDAY...Southeast to south winds near 10 knots. Seas 1 to 2
feet. Nearshore waters a light chop.
.SATURDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to 3
feet. Nearshore waters a light to moderate chop. Isolated showers.
.SUNDAY...South to southwest winds decreasing to 5 to 10 knots.
Seas subsiding to 1 to 2 feet. Nearshore waters becoming smooth
to a light chop. Isolated showers and thunderstorms.
.SUNDAY NIGHT...West winds near 5 knots. Seas around 1 foot.
Nearshore waters smooth. Scattered showers and isolated
thunderstorms.
.MONDAY...West winds near 10 knots. Seas 1 to 2 feet. Nearshore
waters a light chop. Scattered showers and isolated
thunderstorms.
.MONDAY NIGHT...West to northwest winds near 10 knots. Seas around
1 foot. Nearshore waters a light chop. Scattered showers and
isolated thunderstorms.
.TUESDAY...West to northwest winds 5 to 10 knots. Seas 1 foot or
less. Nearshore waters smooth to a light chop. Scattered showers
and isolated thunderstorms.
.TUESDAY NIGHT...Northwest winds 5 to 10 knots. Seas 1 foot or
less. Nearshore waters smooth to a light chop. Isolated showers
and thunderstorms.

$$

GMZ052>055-072>075-171445-
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-
431 AM EDT Fri May 17 2024

.TODAY...Southeast to south winds 5 to 10 knots. Seas 1 to 2
feet. Wave Detail: West to northwest 1 foot at 5 seconds and
southeast 1 foot at 3 seconds.
.TONIGHT...Southeast winds near 10 knots, increasing to 10 to 15
knots. Seas building to 2 to 4 feet. Wave Detail: Southeast 2
feet at 3 seconds.
.SATURDAY...Southeast winds near 10 knots. Seas 1 to 3 feet. Wave
Detail: Southeast 1 foot at 4 seconds.
.SATURDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to 4
feet. Isolated showers.
.SUNDAY...South to southwest winds decreasing to 5 to 10 knots.
Seas subsiding to 1 to 2 feet. Isolated showers and
thunderstorms.
.SUNDAY NIGHT...West winds near 5 knots. Seas around 1 foot.
Scattered showers and isolated thunderstorms.
.MONDAY...Southwest to west winds 5 to 10 knots. Seas around 1
foot. Scattered showers and isolated thunderstorms.
.MONDAY NIGHT...West to northwest winds 5 to 10 knots. Seas
1 to 2 feet. Scattered showers and isolated thunderstorms.
.TUESDAY...Northwest winds 5 to 10 knots. Seas 1 to 2 feet.
Scattered showers and isolated thunderstorms.
.TUESDAY NIGHT...North winds 5 to 10 knots. Seas 1 to 2 feet.
Scattered showers and isolated thunderstorms.

$$

GMZ033-034-171445-
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-
431 AM EDT Fri May 17 2024

.TODAY...South to southeast winds near 10 knots. Seas around 2
feet. Wave Detail: Southwest 2 feet at 5 seconds and northeast 1
foot at 2 seconds.
.TONIGHT...Southeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: Southwest 1 foot at 5 seconds and east 1 foot at 3
seconds.
.SATURDAY...Southeast to south winds near 10 knots. Seas 1 to 2
feet. Wave Detail: Southwest 1 foot at 6 seconds and southeast 1
foot at 3 seconds.
.SATURDAY NIGHT...East to southeast winds 10 to 15 knots,
becoming southeast to south after midnight. Seas 2 to 3 feet.
Isolated showers.
.SUNDAY...Southwest winds decreasing to 5 to 10 knots. Seas 1 to
2 feet. Isolated showers and thunderstorms.
.SUNDAY NIGHT...West to northwest winds 5 to 10 knots. Seas 1 to
2 feet. Scattered showers and isolated thunderstorms.
.MONDAY...West winds 5 to 10 knots, becoming west to northwest in
the afternoon. Seas 1 to 2 feet. Isolated showers and
thunderstorms.
.MONDAY NIGHT...Northwest winds near 10 knots. Seas around 2
feet. Scattered showers and isolated thunderstorms.
.TUESDAY...North winds 5 to 10 knots. Seas 1 to 2 feet. Isolated
showers and thunderstorms.
.TUESDAY NIGHT...North winds near 5 knots. Seas around 1 foot.
Isolated showers and thunderstorms.

$$

JAM