160
FZUS52 KKEY 210223
CWFKEY

Coastal Waters Forecast for the Florida Keys
National Weather Service Key West FL
1023 PM EDT Thu Jun 20 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.

GMZ005-210830-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
1023 PM EDT Thu Jun 20 2024

.SYNOPSIS...Strong high pressure centered north of Bermuda
working in tandem with Tropical Depression Alberto over eastern
Mexico will result in moderate to fresh breezes tonight. A
second, weak area of low pressure currently near the northern
Bahamas will continue to move west northwest, reaching the
southeast U.S. by early Friday morning. The interaction of these
features will loosen the pressure gradient, leading to slackening
east to southeast breezes for Friday through the weekend. High
pressure building over the North Atlantic early next week will
result in light to gentle southeast to south breezes.

The Approximate Shoreward Edge of the Gulf Stream as of June
19...

67 NM South of Dry Tortugas Light...on Loggerhead Key.
35 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
28 NM South of Sand Key Light...off Key West.
29 NM South of Looe Key...off Big Pine Key.
34 NM South of Sombrero Key Light...off Marathon.
23 NM Southeast of Alligator Reef Light...off Islamorada.
19 NM Southeast of Molasses Reef Light...off Key Largo.

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

$$

GMZ031-210830-
Florida Bay including Barnes Sound, Blackwater Sound, and
Buttonwood Sound-
1023 PM EDT Thu Jun 20 2024

.OVERNIGHT...Northeast to east winds near 15 knots. Bay waters a
moderate chop. Scattered showers and isolated thunderstorms.
.FRIDAY...East winds near 15 knots. Bay waters a moderate chop.
Scattered showers and thunderstorms.
.FRIDAY NIGHT AND SATURDAY...East to southeast winds near 15
knots. Bay waters a moderate chop. Scattered showers and
thunderstorms.
.SATURDAY NIGHT AND SUNDAY...East to southeast winds 10 to 15
knots. Bay waters a light to moderate chop. Scattered showers and
thunderstorms.
.SUNDAY NIGHT...East to southeast winds near 10 knots. Bay waters
a light chop. Scattered showers and isolated thunderstorms.
.MONDAY...East to southeast winds near 10 knots, becoming
southeast and decreasing to 5 to 10 knots. Bay waters a light
chop, becoming smooth to a light chop. Scattered showers and
isolated thunderstorms.
.MONDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters smooth
to a light chop. Isolated showers and thunderstorms.
.TUESDAY AND TUESDAY NIGHT...Southeast to south winds near 5
knots. Bay waters smooth. Scattered showers and isolated
thunderstorms.

$$

GMZ032-035-210830-
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-
1023 PM EDT Thu Jun 20 2024

...SMALL CRAFT SHOULD EXERCISE CAUTION UNTIL WINDS DECREASE...

.OVERNIGHT...Northeast to east winds 15 to 20 knots, decreasing
to near 15 knots. Seas 2 to 3 feet, except 3 to 4 feet west of the
Marquesas Keys. Nearshore waters choppy, becoming a moderate
chop. Scattered showers and isolated thunderstorms.
.FRIDAY...East to southeast winds increasing to 15 to 20 knots.
Seas 2 to 3 feet, except around 3 feet west of the Marquesas Keys.
Nearshore waters becoming choppy. Scattered showers and
thunderstorms.
.FRIDAY NIGHT...East to southeast winds 15 to 20 knots, decreasing
to near 15 knots. Seas subsiding to 1 to 2 feet, except subsiding
to 2 to 3 feet west of the Marquesas Keys. Nearshore waters
choppy, becoming a moderate chop. Scattered showers and
thunderstorms.
.SATURDAY...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.
.SATURDAY NIGHT AND SUNDAY...East to southeast winds 10 to 15
knots. Seas 1 to 2 feet. Nearshore waters a light to moderate
chop. Scattered showers and thunderstorms.
.SUNDAY NIGHT AND MONDAY...East to southeast winds near 10 knots.
Seas around 1 foot. Nearshore waters a light chop. Scattered
showers and isolated thunderstorms.
.MONDAY NIGHT...Southeast winds 5 to 10 knots. Seas 1 foot or
less. Nearshore waters smooth to a light chop. Isolated showers
and thunderstorms.
.TUESDAY AND TUESDAY NIGHT...Southeast to south winds 5 to 10
knots. Seas 1 foot or less. Nearshore waters smooth to a light
chop. Scattered showers and isolated thunderstorms.

$$

GMZ042>044-210830-
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-
1023 PM EDT Thu Jun 20 2024

...SMALL CRAFT SHOULD EXERCISE CAUTION UNTIL WINDS DECREASE...

.OVERNIGHT...Northeast to east winds 15 to 20 knots, decreasing
to near 15 knots. Seas 2 to 4 feet, occasionally to 5 feet.
Nearshore waters choppy, becoming a moderate chop. Scattered
showers and isolated thunderstorms.
.FRIDAY...East winds increasing to 15 to 20 knots. Seas 2 to 4
feet, occasionally to 5 feet. Nearshore waters becoming choppy.
Scattered showers and thunderstorms.
.FRIDAY NIGHT...East to southeast winds 15 to 20 knots, decreasing
to near 15 knots. Seas subsiding to 2 to 3 feet. Nearshore waters
choppy, becoming a moderate chop. Scattered showers and
thunderstorms.
.SATURDAY...East to southeast winds near 15 knots. Seas 2 to 3
feet. Nearshore waters a moderate chop. Scattered showers and
thunderstorms.
.SATURDAY NIGHT...East to southeast winds 10 to 15 knots. Seas 2
to 3 feet. Nearshore waters a light to moderate chop. Scattered
showers and thunderstorms.
.SUNDAY...East to southeast winds 10 to 15 knots. Seas around 2
feet. Nearshore waters a light to moderate chop. Scattered showers
and thunderstorms.
.SUNDAY NIGHT AND MONDAY...East to southeast winds near 10 knots.
Seas 1 to 2 feet. Nearshore waters a light chop. Scattered
showers and isolated thunderstorms.
.MONDAY NIGHT...East to southeast winds 5 to 10 knots. Seas
around 1 foot. Nearshore waters smooth to a light chop. Isolated
showers and thunderstorms.
.TUESDAY...Southeast winds 5 to 10 knots. Seas around 1 foot.
Nearshore waters smooth to a light chop. Scattered showers and
isolated thunderstorms.
.TUESDAY NIGHT...Southeast to south winds 5 to 10 knots. Seas
around 1 foot. Nearshore waters smooth to a light chop. Scattered
showers and isolated thunderstorms.

$$

GMZ052>055-072>075-210830-
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-
1023 PM EDT Thu Jun 20 2024

...SMALL CRAFT SHOULD EXERCISE CAUTION...

.OVERNIGHT...East winds 15 to 20 knots. Seas subsiding to 3 to 5
feet, occasionally to 6 feet. Wave Detail: Northeast to east 5
feet at 6 seconds. Scattered showers and isolated thunderstorms.
.FRIDAY...East winds 15 to 20 knots. Seas 3 to 5 feet,
occasionally to 6 feet. Wave Detail: East 4 feet at 6 seconds.
Scattered showers and thunderstorms.
.FRIDAY NIGHT...East to southeast winds 15 to 20 knots,
decreasing to near 15 knots. Seas subsiding to 3 to 4 feet,
occasionally to 5 feet. Wave Detail: East 4 feet at 5 seconds.
Scattered showers and thunderstorms.
.SATURDAY...East to southeast winds near 15 knots. Seas 3 to 4
feet, occasionally to 5 feet. Scattered showers and
thunderstorms.
.SATURDAY NIGHT...East to southeast winds 10 to 15 knots. Seas
2 to 4 feet, occasionally to 5 feet. Scattered showers and
thunderstorms.
.SUNDAY...East to southeast winds 10 to 15 knots. Seas 2 to 3
feet. Scattered showers and thunderstorms.
.SUNDAY NIGHT...East to southeast winds 10 to 15 knots, decreasing
to near 10 knots. Seas subsiding to around 2 feet. Scattered
showers and isolated thunderstorms.
.MONDAY...East to southeast winds near 10 knots. Seas 1 to
2 feet. Scattered showers and isolated thunderstorms.
.MONDAY NIGHT...East to southeast winds 5 to 10 knots. Seas 1 to
2 feet. Scattered showers and isolated thunderstorms.
.TUESDAY...Southeast winds 5 to 10 knots. Seas 1 to 2 feet.
Scattered showers and isolated thunderstorms.
.TUESDAY NIGHT...Southeast to south winds 5 to 10 knots. Seas 1 to
2 feet. Scattered showers and isolated thunderstorms.

$$

GMZ033-034-210830-
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-
1023 PM EDT Thu Jun 20 2024

...SMALL CRAFT SHOULD EXERCISE CAUTION...

.OVERNIGHT...Northeast to east winds 15 to 20 knots. Seas
subsiding to 2 to 4 feet, occasionally to 5 feet. Wave Detail:
East 4 feet at 5 seconds. Scattered showers and isolated
thunderstorms.
.FRIDAY...East to southeast winds 15 to 20 knots. Seas 2 to 4
feet, occasionally to 5 feet. Wave Detail: East 3 feet at 5
seconds. Scattered showers and thunderstorms.
.FRIDAY NIGHT...East to southeast winds 15 to 20 knots, decreasing
to near 15 knots. Seas subsiding to 2 to 3 feet. Wave Detail:
East to southeast 3 feet at 4 seconds and west to northwest 1 foot
at 8 seconds. Scattered showers and thunderstorms.
.SATURDAY...East to southeast winds near 15 knots. Seas 2 to
3 feet. Scattered showers and thunderstorms.
.SATURDAY NIGHT...East to southeast winds near 15 knots,
decreasing to 10 to 15 knots. Seas 2 to 3 feet. Scattered showers
and thunderstorms.
.SUNDAY...East to southeast winds 10 to 15 knots. Seas subsiding
to 1 to 2 feet. Scattered showers and thunderstorms.
.SUNDAY NIGHT...East to southeast winds near 10 knots. Seas 1 to
2 feet. Scattered showers and isolated thunderstorms.
.MONDAY...East to southeast winds near 10 knots, decreasing to 5
to 10 knots. Seas subsiding to around 1 foot. Scattered showers
and isolated thunderstorms.
.MONDAY NIGHT...Southeast winds 5 to 10 knots. Seas around
1 foot. Scattered showers and isolated thunderstorms.
.TUESDAY AND TUESDAY NIGHT...Southeast to south winds 5 to 10
knots. Seas around 1 foot. Isolated showers and thunderstorms.

$$