416 
FZUS52 KKEY 181006 CCA
CWFKEY

Coastal Waters Forecast for the Florida Keys...Corrected
National Weather Service Key West FL 
428 AM EDT Sat Jul 18 2020

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.

GMZ005-181430-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
428 AM EDT Sat Jul 18 2020

.SYNOPSIS...Moderate to occasionally fresh easterly breezes will 
prevail across the coastal waters of the Florida Keys through the 
forecast period as high pressure persists to our north. Meanwhile,
tropical moisture will support periods of thundery squalls across
the Keys through much of next week. 

The Approximate Shoreward Edge of the Gulf Stream as of
July 18, 2020...

30 NM South of Dry Tortugas Light...on Loggerhead Key.
14 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
 9 NM South of Sand Key Light...off Key West.
 5 NM South of Looe Key...off Big Pine Key.
 4 NM South of Sombrero Key Light...off Marathon.
 1 NM Southeast of Alligator Reef Light...off Islamorada.
 2 NM Southeast of Molasses Reef Light...off Key Largo.
 2 NM East of Carysfort Reef Light...off Ocean Reef.

Gulf Stream Information Courtesy of the Naval Oceanographic Office.

$$

GMZ031-181430-
Florida Bay including Barnes Sound, Blackwater Sound, and
Buttonwood Sound-
428 AM EDT Sat Jul 18 2020

.TODAY...Northeast to east winds near 15 knots, shifting east. 
Bay waters a moderate chop. Winds higher and bay waters rough in 
and near numerous showers and scattered thunderstorms.
.TONIGHT THROUGH SUNDAY NIGHT...East winds 10 to 15 knots. Bay 
waters a light to moderate chop. Scattered showers and isolated 
thunderstorms. 
.MONDAY...East winds near 15 knots. Bay waters a light to 
moderate chop. Numerous showers and scattered thunderstorms. 
.MONDAY NIGHT...East winds 15 to 20 knots. Bay waters choppy. 
Numerous showers and scattered thunderstorms.
.TUESDAY...East to southeast winds 15 to 20 knots. Bay waters a 
choppy. Numerous showers and scattered thunderstorms. 
.TUESDAY NIGHT THROUGH WEDNESDAY NIGHT...East winds near 15 
knots. Bay waters a moderate chop. Scattered showers and isolated
thunderstorms. 

$$

GMZ032-035-181430-
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-
428 AM EDT Sat Jul 18 2020

.TODAY...East winds near 15 knots. Seas 1 to 3 feet. Nearshore 
waters a moderate chop. Winds and seas higher near numerous 
showers and scattered thunderstorms.
.TONIGHT THROUGH SUNDAY NIGHT...East winds near 15 knots. Seas 1 
to 3 feet. Nearshore waters a moderate chop. Scattered showers 
and isolated thunderstorms. 
.MONDAY...East winds near 15 knots. Seas 1 to 3 feet. Nearshore
waters a moderate chop. Numerous showers and scattered
thunderstorms. 
.MONDAY NIGHT...East winds 15 to 20 knots. Seas 2 to 3 feet. 
Nearshore waters a moderate chop. Numerous showers and scattered 
thunderstorms. 
.TUESDAY...East to southeast winds 15 to 20 knots. Seas 2 to
3 feet. Nearshore waters choppy. Numerous showers and scattered
thunderstorms. 
.TUESDAY NIGHT...East to southeast winds 15 to 20 knots. Seas
2 to 3 feet. Nearshore waters choppy. Scattered showers and 
isolated thunderstorms. 
.WEDNESDAY...East winds 15 to 20 knots. Seas 2 to 3 feet.
Nearshore waters choppy. Scattered showers and isolated
thunderstorms. 
.WEDNESDAY NIGHT...East winds near 15 knots. Seas 1 to 3 feet.
Nearshore waters a moderate chop. Scattered showers and isolated
thunderstorms. 

$$

GMZ042>044-181430-
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-
428 AM EDT Sat Jul 18 2020

...SMALL CRAFT SHOULD EXERCISE CAUTION...

.TODAY...Northeast to east winds 15 to 20 knots, shifting east. 
Seas 2 to 4 feet. Nearshore waters choppy. Winds and seas higher 
near numerous showers and scattered thunderstorms.
.TONIGHT THROUGH SUNDAY NIGHT...East winds near 15 knots. Seas 2 
to 3 feet. Nearshore waters a moderate chop. Scattered showers and
isolated thunderstorms. 
.MONDAY...East winds near 15 knots. Seas 2 to 3 feet. Nearshore
waters a moderate chop. Numerous showers and scattered
thunderstorms. 
.MONDAY NIGHT...East winds 15 to 20 knots. Seas 2 to 4 feet. 
Nearshore waters a light to moderate chop. Numerous showers and 
scattered thunderstorms. 
.TUESDAY...East to southeast winds 15 to 20 knots. Seas 2 to
4 feet. Nearshore waters choppy. Numerous showers and scattered
thunderstorms. 
.TUESDAY NIGHT...East to southeast winds 15 to 20 knots. Seas
2 to 4 feet. Nearshore waters choppy. Scattered showers and
isolated thunderstorms. 
.WEDNESDAY...East winds 15 to 20 knots. Seas 2 to 4 feet.
Nearshore waters choppy. Scattered showers and isolated
thunderstorms. 
.WEDNESDAY NIGHT...East winds near 15 knots. Seas 2 to 3 feet.
Nearshore waters a moderate chop. Scattered showers and isolated
thunderstorms. 

$$

GMZ052>055-072>075-181430-
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-
428 AM EDT Sat Jul 18 2020

...SMALL CRAFT SHOULD EXERCISE CAUTION...

.TODAY...East winds 15 to 20 knots. Seas 3 to 6 feet. Winds and seas 
higher in and near numerous showers and scattered thunderstorms. 
.TONIGHT...East winds 15 to 20 knots. Seas 3 to 6 feet. Scattered
showers and isolated thunderstorms. 
.SUNDAY AND SUNDAY NIGHT...East winds near 15 knots. Seas 3 to 5 
feet. Scattered showers and isolated thunderstorms. 
.MONDAY...East winds near 15 knots. Seas 3 to 5 feet. Numerous 
showers and scattered thunderstorms. 
.MONDAY NIGHT...East winds 15 to 20 knots. Seas 3 to 6 feet.
Numerous showers and scattered thunderstorms. 
.TUESDAY...East to southeast winds 15 to 20 knots. Seas 3 to
6 feet. Numerous showers and scattered thunderstorms. 
.TUESDAY NIGHT...East to southeast winds 15 to 20 knots. Seas
3 to 6 feet. Scattered showers and isolated thunderstorms. 
.WEDNESDAY...East winds 15 to 20 knots. Seas 3 to 6 feet.
Scattered showers and isolated thunderstorms. 
.WEDNESDAY NIGHT...East to southeast winds near 15 knots. Seas
3 to 5 feet. Scattered showers and isolated thunderstorms. 

$$

GMZ033-034-181430-
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-
428 AM EDT Sat Jul 18 2020

...SMALL CRAFT SHOULD EXERCISE CAUTION...

.TODAY...East winds 15 to 20 knots. Seas 3 to 5 feet. Winds 
and seas higher in and near numerous showers and scattered 
thunderstorms. 
.TONIGHT...East winds near 15 knots. Seas 2 to 4 feet. Scattered 
showers and isolated thunderstorms. 
.SUNDAY AND SUNDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 3
feet. Scattered showers and isolated thunderstorms. 
.MONDAY...East winds 10 to 15 knots. Seas 2 to 3 feet. Numerous
showers and scattered thunderstorms. 
.MONDAY NIGHT...East winds increasing to 15 to 20 knots. Seas
building to 3 to 5 feet. Numerous showers and scattered 
thunderstorms.
.TUESDAY...East to southeast winds 15 to 20 knots. Seas 3 to
5 feet. Numerous showers and scattered thunderstorms. 
.TUESDAY NIGHT AND WEDNESDAY...East to southeast winds 15 to 20 
knots. Seas 3 to 5 feet. Scattered showers and isolated 
thunderstorms. 
.WEDNESDAY NIGHT...East winds near 15 knots. Seas 2 to 4 feet. 
Scattered showers and isolated thunderstorms. 

$$

WLC