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Coastal Waters Forecast (CWF)

Issued by Key West, FL (KEY)

                            
000
FZUS52 KKEY 200823
CWFKEY

Coastal Waters Forecast for the Florida Keys
National Weather Service Key West FL
423 AM EDT Tue Aug 20 2019

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.

GMZ005-201430-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
423 AM EDT Tue Aug 20 2019

.SYNOPSIS...A trough near the Florida Keys today will move slowly
westward and into the Southeast Gulf of Mexico by tonight. High 
pressure will stretch west across the Florida Peninsula Wednesday
through Friday night, sagging south towards the Keys this 
weekend.

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

51 NM South of Dry Tortugas Light...on Loggerhead Key.
39 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
25 NM South of Sand Key Light...off Key West.
 7 NM South of Looe Key...off Big Pine Key.
 7 NM South of Sombrero Key Light...off Marathon.
 6 NM Southeast of Alligator Reef Light...off Islamorada.
 4 NM Southeast of Molasses Reef Light...off Key Largo.
 4 NM East of Carysfort Reef Light...off Ocean Reef.

Gulf Stream Information Courtesy of the Naval Oceanographic
Office.

$$

GMZ031-201430-
Florida Bay including Barnes Sound, Blackwater Sound, and
Buttonwood Sound-
423 AM EDT Tue Aug 20 2019

.TODAY...East to southeast winds 10 to 15 knots. Bay waters a 
light to moderate chop. Numerous showers and scattered 
thunderstorms. 
.TONIGHT...East to southeast winds 10 to 15 knots. Bay waters a 
light to moderate chop. Scattered showers and isolated 
thunderstorms.
.WEDNESDAY...East to southeast 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. 
.WEDNESDAY NIGHT...East winds near 10 knots. Bay waters a light 
chop. Scattered showers and isolated thunderstorms. 
.THURSDAY...Northeast to east winds 10 to 15 knots. Bay waters a 
light to moderate chop. Scattered showers and isolated 
thunderstorms. 
.THURSDAY NIGHT...Northeast winds 10 to 15 knots. Bay waters a 
light to moderate chop. Scattered showers and isolated 
thunderstorms. 
.FRIDAY...East to southeast winds near 10 knots. Bay waters a
light chop. Scattered showers and thunderstorms. 
.FRIDAY NIGHT THROUGH SATURDAY NIGHT...Southeast winds near 10 
knots. Bay waters a light chop. Scattered showers and isolated 
thunderstorms. 

$$

GMZ032-035-201430-
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-
423 AM EDT Tue Aug 20 2019

.TODAY...East to southeast winds 10 to 15 knots. Seas 1 to 3 
feet. Nearshore waters a light to moderate chop. Scattered 
showers and thunderstorms developing. 
.TONIGHT...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. 
.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 near 10 knots. Seas 1 to 2 feet. 
Nearshore waters a light chop. Scattered showers and isolated 
thunderstorms. 
.THURSDAY...Northeast to east winds 10 to 15 knots. Seas 1 to 2 
feet. Nearshore waters a light to moderate chop. Scattered 
showers and isolated thunderstorms.
.THURSDAY NIGHT...Northeast to east winds 10 to 15 knots. Seas 1 
to 3 feet. Nearshore waters a light to moderate chop. Scattered 
showers and isolated thunderstorms. 
.FRIDAY...East to southeast winds near 10 knots. Seas 1 to 2 feet.
Nearshore waters a light chop. Scattered showers and isolated 
thunderstorms.
.FRIDAY NIGHT THROUGH SATURDAY NIGHT...Southeast winds near 10 
knots. Seas 1 to 2 feet. Nearshore waters a light chop. Scattered 
showers and isolated thunderstorms. 

$$

GMZ042>044-201430-
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-
423 AM EDT Tue Aug 20 2019

.TODAY...East to southeast winds near 15 knots, decreasing to 10 
to 15 knots. Seas 2 to 3 feet, subsiding to 1 to 3 feet. Nearshore
waters a moderate chop, becoming a light to moderate chop. 
Scattered showers and thunderstorms developing. 
.TONIGHT...East to southeast winds near 15 knots. Seas 2 to 3 
feet. Nearshore waters a moderate chop. Scattered showers and 
isolated thunderstorms. 
.WEDNESDAY AND WEDNESDAY NIGHT...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...Northeast to east winds 10 to 15 knots. Seas 1 to 3 
feet. Nearshore waters a light to moderate chop. Scattered 
showers and isolated thunderstorms. 
.THURSDAY NIGHT...Northeast to east winds 10 to 15 knots. Seas 1
to 3 feet. Nearshore waters a light to moderate chop. Scattered
showers and isolated thunderstorms. 
.FRIDAY...East to southeast winds winds near 10 knots. Seas 1 to 
2 feet. Nearshore waters a light chop. Scattered showers and 
thunderstorms. 
.FRIDAY NIGHT THROUGH SATURDAY NIGHT...Southeast winds near 
10 knots. Seas 1 to 2 feet. Nearshore waters a light chop. 
Scattered showers and isolated thunderstorms. 

$$

GMZ052>055-072>075-201430-
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-
423 AM EDT Tue Aug 20 2019

.TODAY...East to southeast winds near 15 knots. Seas 3 to 5 feet.
Scattered showers and thunderstorms developing. 
.TONIGHT...East to southeast winds near 15 knots. Seas 3 to 5 
feet. Scattered showers and isolated thunderstorms. 
.WEDNESDAY AND WEDNESDAY NIGHT...East to southeast winds 10 to 15
knots. Seas 2 to 4 feet. Scattered showers and isolated 
thunderstorms.
.THURSDAY...Northeast to east winds 10 to 15 knots. Seas 2 to 4 
feet. Scattered showers and isolated thunderstorms. 
.THURSDAY NIGHT...Northeast to east winds 10 to 15 knots. Seas 
2 to 4 feet. Scattered showers and isolated thunderstorms. 
.FRIDAY...East to southeast winds 10 to 15 knots. Seas 2 to 4 
feet. Scattered showers and isolated thunderstorms. 
.FRIDAY NIGHT THROUGH SATURDAY NIGHT...Southeast winds near 10 
knots. Seas 2 to 3 feet. Scattered showers and thunderstorms. 

$$

GMZ033-034-201430-
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-
423 AM EDT Tue Aug 20 2019

.TODAY...East to southeast winds 10 to 15 knots, increasing to
near 15 knots. Seas 2 to 4 feet. Scattered showers and 
thunderstorms developing.
.TONIGHT...East to southeast winds 10 to 15 knots. Seas 2 to 4 
feet. Scattered showers and isolated thunderstorms. 
.WEDNESDAY...East to southeast winds near 10 knots. Seas around 2
feet. Scattered showers and isolated thunderstorms. 
.WEDNESDAY NIGHT...East to southeast winds near 10 knots. Seas
around 2 feet. Scattered showers and isolated thunderstorms. 
.THURSDAY...East winds 10 to 15 knots. Seas 2 to 4 feet. 
Scattered showers and isolated thunderstorms. 
.THURSDAY NIGHT...Northeast winds 10 to 15 knots. Seas 2 to 4 
feet. Scattered showers and isolated thunderstorms. 
.FRIDAY...Northeast to east winds near 15 knots, decreasing to 
near 10 knots. Seas 3 to 4 feet, subsiding to 1 to 3 feet. 
Scattered showers and isolated thunderstorms.
.FRIDAY NIGHT THROUGH SATURDAY NIGHT...Southeast winds near 10
knots. Seas around 2 feet. Scattered showers and isolated 
thunderstorms. 

$$