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000
FZUS52 KKEY 202027
CWFKEY

Coastal Waters Forecast for the Florida Keys
National Weather Service Key West FL
427 PM EDT Sun Jun 20 2021

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.

GMZ005-210230-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
427 PM EDT Sun Jun 20 2021

.SYNOPSIS...With now Tropical Depression Claudette exiting the
Southeast United States, east to southeast breezes will freshen
tonight through Tuesday. The ridge that has dominated the marine
weather for the past several days will erode Tuesday afternoon and
evening. Breezes will slacken Wednesday through Wednesday night,
before once again freshening Thursday through at least Friday.
Rain and thunder chances are expected to remain low through
Tuesday night, with a return to more normal rainy season chances
Wednesday through the end of the week.

The Approximate Shoreward Edge of the Gulf Stream as of June 17...

21 NM South of Dry Tortugas Light...on Loggerhead Key.
 8 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
 8 NM South of Sand Key Light...off Key West.
11 NM South of Looe Key...off Big Pine Key.
12 NM South of Sombrero Key Light...off Marathon.
10 NM Southeast of Alligator Reef Light...off Islamorada.
 8 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 Naval Oceanographic
Office.

$$

GMZ031-210230-
Florida Bay including Barnes Sound, Blackwater Sound, and
Buttonwood Sound-
427 PM EDT Sun Jun 20 2021

.TONIGHT...Southeast winds near 10 knots, increasing to 10 to 15
knots. Bay waters a light chop, becoming a light to moderate
chop. Isolated showers and thunderstorms.
.MONDAY AND MONDAY NIGHT...Southeast winds 10 to 15 knots. Bay
waters a light to moderate chop. Isolated showers and
thunderstorms.
.TUESDAY...Southeast winds 10 to 15 knots. Bay waters a light to
moderate chop. Scattered showers and isolated thunderstorms.
.TUESDAY NIGHT AND WEDNESDAY...East to southeast winds near 10
knots. Bay waters a light chop. Scattered showers and isolated
thunderstorms.
.WEDNESDAY NIGHT...East winds increasing to 10 to 15 knots. Bay
waters becoming a light to moderate chop. Scattered showers and
isolated thunderstorms.
.THURSDAY...East to southeast winds 10 to 15 knots. Bay waters a
light to moderate chop. Scattered showers and isolated
thunderstorms.
.THURSDAY NIGHT...East to southeast winds near 15 knots. Bay
waters a moderate chop. Scattered showers and isolated
thunderstorms.
.FRIDAY...East to southeast winds 10 to 15 knots. Bay waters a
light to moderate chop. Scattered showers and isolated
thunderstorms.
.FRIDAY NIGHT...East winds 10 to 15 knots. Bay waters a light to
moderate chop. Scattered showers and isolated thunderstorms.

$$

GMZ032-035-210230-
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-
427 PM EDT Sun Jun 20 2021

.TONIGHT...Southeast winds 5 to 10 knots, increasing to 10 to 15
knots. Seas building to 1 to 2 feet. Nearshore waters smooth to a
light chop, becoming a light to moderate chop. Isolated showers
and thunderstorms.
.MONDAY...Southeast winds 10 to 15 knots. Seas 1 to 2 feet.
Nearshore waters a light to moderate chop. Isolated showers and
thunderstorms.
.MONDAY NIGHT...Southeast winds increasing to near 15 knots. Seas
1 to 2 feet. Nearshore waters becoming a moderate chop. Isolated
showers and thunderstorms.
.TUESDAY...Southeast winds 10 to 15 knots. Seas 1 to 2 feet.
Nearshore waters a light to moderate chop. Isolated showers and
thunderstorms.
.TUESDAY NIGHT AND WEDNESDAY...East to southeast winds near 10
knots. Seas around 1 foot. Nearshore waters a light chop.
Scattered showers and isolated thunderstorms.
.WEDNESDAY NIGHT...East winds increasing to 10 to 15 knots. Seas
building to 1 to 2 feet. Nearshore waters becoming a light to
moderate chop. Scattered showers and isolated thunderstorms.
.THURSDAY...East to southeast winds 10 to 15 knots. Seas 1 to 2
feet. Nearshore waters a light to moderate chop. Scattered
showers and isolated thunderstorms.
.THURSDAY NIGHT...East to southeast winds near 15 knots. Seas
1 to 3 feet. Nearshore waters a moderate chop. Scattered showers
and isolated thunderstorms.
.FRIDAY...East to southeast winds 10 to 15 knots. Seas 1 to 2
feet. Nearshore waters a moderate chop. Scattered showers and
isolated thunderstorms.
.FRIDAY NIGHT...East winds near 15 knots. Seas 1 to 3 feet.
Nearshore waters a moderate chop. Scattered showers and isolated
thunderstorms.

$$

GMZ042>044-210230-
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-
427 PM EDT Sun Jun 20 2021

.TONIGHT...Southeast winds 5 to 10 knots, increasing to 10 to 15
knots. Seas building to 1 to 3 feet. Nearshore waters smooth to
a light chop, becoming a light to moderate chop. Isolated showers
and thunderstorms.
.MONDAY...Southeast winds 10 to 15 knots. Seas 2 to 3 feet.
Nearshore waters a light to moderate chop. Isolated showers and
thunderstorms.
.MONDAY NIGHT...Southeast winds increasing to near 15 knots. Seas
2 to 3 feet. Nearshore waters becoming a moderate chop. Isolated
showers and thunderstorms.
.TUESDAY...Southeast winds 10 to 15 knots. Seas 1 to 3 feet.
Nearshore waters a light to moderate chop. Isolated showers and
thunderstorms.
.TUESDAY NIGHT AND WEDNESDAY...East to southeast winds near 10
knots. Seas 1 to 2 feet. Nearshore waters a light chop. Scattered
showers and isolated thunderstorms.
.WEDNESDAY NIGHT...East winds increasing to 10 to 15 knots. Seas
building to 1 to 3 feet. Nearshore waters becoming a light to
moderate chop. Scattered showers and isolated thunderstorms.
.THURSDAY...East to southeast winds 10 to 15 knots. Seas 1 to 3 feet.
Nearshore waters a light to moderate chop. Scattered showers and
isolated thunderstorms.
.THURSDAY NIGHT...East to southeast winds near 15 knots. Seas
2 to 3 feet. Nearshore waters a moderate chop. Scattered showers
and isolated thunderstorms.
.FRIDAY...East winds 10 to 15 knots. Seas 1 to 3 feet. Nearshore
waters a light to moderate chop. Scattered showers and isolated
thunderstorms.
.FRIDAY NIGHT...East winds near 15 knots. Seas 2 to 3 feet.
Nearshore waters a moderate chop. Scattered showers and isolated
thunderstorms.

$$

GMZ052>055-072>075-210230-
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-
427 PM EDT Sun Jun 20 2021

.TONIGHT...East to southeast winds near 10 knots, increasing to 10
to 15 knots. Seas building to 2 to 4 feet. Isolated showers and
thunderstorms.
.MONDAY...Southeast winds 10 to 15 knots. Seas 2 to 3 feet.
Isolated showers and thunderstorms.
.MONDAY NIGHT...Southeast winds increasing to near 15 knots. Seas
building to 2 to 4 feet. Isolated showers and thunderstorms.
.TUESDAY...East to southeast winds 10 to 15 knots. Seas 2 to
3 feet. Isolated showers and thunderstorms.
.TUESDAY NIGHT AND WEDNESDAY...East to southeast winds near 10
knots. Seas around 2 feet. Scattered showers and isolated
thunderstorms.
.WEDNESDAY NIGHT...East winds increasing to 10 to 15 knots. Seas
building to 2 to 3 feet. Scattered showers and isolated
thunderstorms.
.THURSDAY...East to southeast winds 10 to 15 knots. Seas 2 to 3
feet. Scattered showers and isolated thunderstorms.
.THURSDAY NIGHT...East to southeast winds near 15 knots. Seas
3 to 4 feet. Scattered showers and isolated thunderstorms.
.FRIDAY...East winds 10 to 15 knots. Seas 3 to 4 feet. Scattered
showers and isolated thunderstorms.
.FRIDAY NIGHT...East winds near 15 knots. Seas 3 to 5 feet.
Scattered showers and isolated thunderstorms.

$$

GMZ033-034-210230-
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-
427 PM EDT Sun Jun 20 2021

.TONIGHT...Southeast winds 5 to 10 knots, increasing to 10 to 15
knots. Seas 1 to 2 feet. Isolated showers and thunderstorms.
.MONDAY AND MONDAY NIGHT...Southeast winds 10 to 15 knots. Seas
around 2 feet. Isolated showers and thunderstorms.
.TUESDAY...Southeast to south winds 10 to 15 knots. Seas 1 to
2 feet. Isolated showers and thunderstorms.
.TUESDAY NIGHT AND WEDNESDAY...East to southeast winds near 10
knots. Seas 1 to 2 feet. Isolated showers and thunderstorms.
.WEDNESDAY NIGHT...East winds increasing to 10 to 15 knots. Seas
1 to 2 feet. Scattered showers and isolated thunderstorms.
.THURSDAY...East to southeast winds 10 to 15 knots. Seas 1 to 2
feet. Scattered showers and isolated thunderstorms.
.THURSDAY NIGHT...East to southeast winds 10 to 15 knots. Seas
building to 2 to 3 feet. Scattered showers and isolated
thunderstorms.
.FRIDAY...East to southeast winds 10 to 15 knots. Seas 1 to
3 feet. Scattered showers and isolated thunderstorms.
.FRIDAY NIGHT...East to southeast winds near 15 knots. Seas 2 to
4 feet. Scattered showers and isolated thunderstorms.

$$