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Coastal Waters Forecast (CWF)

Issued by Key West, FL (KEY)

                            
000
FZUS52 KKEY 201439
CWFKEY

Coastal Waters Forecast for the Florida Keys
National Weather Service Key West FL
1039 AM EDT Fri Sep 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.

GMZ005-202030-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
1039 AM EDT Fri Sep 20 2019

.SYNOPSIS...High pressure over the southeastern United States 
will maintain strong northeast to east breezes this afternoon 
through Monday. Breezes will occasionally peak and lull, 
especially in the lee of the Florida Peninsula. 

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

49 NM South of Dry Tortugas Light...on Loggerhead Key.
33 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
29 NM South of Sand Key Light...off Key West.
24 NM South of Looe Key...off Big Pine Key.
18 NM South of Sombrero Key Light...off Marathon.
18 NM Southeast of Alligator Reef Light...off Islamorada.
15 NM Southeast of Molasses Reef Light...off Key Largo.
10 NM East of Carysfort Reef Light...off Ocean Reef.

Gulf Stream Information Courtesy of the Naval Oceanographic Office.

$$

GMZ031-202030-
Florida Bay including Barnes Sound, Blackwater Sound, and
Buttonwood Sound-
1039 AM EDT Fri Sep 20 2019

...SMALL CRAFT ADVISORY IN EFFECT...

.THIS AFTERNOON...Northeast to east winds 20 to 25 knots. Bay 
waters very rough. Scattered showers.
.TONIGHT...Northeast to east winds near 25 knots in the evening,
then 20 to 25 knots. Bay waters extremely rough. Numerous showers
and isolated thunderstorms. 
.SATURDAY...Northeast to east winds 20 to 25 knots. Bay waters 
very rough. Scattered showers and isolated thunderstorms. 
.SATURDAY NIGHT...Northeast to east winds near 25 knots. Bay 
waters extremely rough. Scattered showers and isolated 
thunderstorms.
.SUNDAY...Northeast to east winds 15 to 20 knots. Bay waters
choppy. Scattered showers and isolated thunderstorms. 
.SUNDAY NIGHT AND MONDAY...Northeast to east winds 15 to 20 
knots. Bay waters choppy. Scattered showers and isolated 
thunderstorms. 
.MONDAY NIGHT...Northeast winds 15 to 20 knots. Bay waters
choppy. Scattered showers and isolated thunderstorms. 
.TUESDAY AND TUESDAY NIGHT...Northeast to east winds 10 to 15 
knots. Bay waters a light to moderate chop. Isolated showers and 
thunderstorms. 

$$

GMZ032-035-202030-
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-
1039 AM EDT Fri Sep 20 2019

...SMALL CRAFT ADVISORY IN EFFECT...

.THIS AFTERNOON...Northeast to east winds near 25 knots. Seas 2 
to 4 feet, except 5 to 6 feet west of the Marquesas Keys. 
Nearshore waters extremely rough. Scattered showers.
.TONIGHT...Northeast to east winds 25 to 30 knots in the evening,
then 20 to 25 knots. Seas 3 to 4 feet, except around 6 feet west 
of the Marquesas Keys. Nearshore waters extremely rough. Numerous 
showers and isolated thunderstorms. 
.SATURDAY...Northeast to east winds 20 to 25 knots. Seas 2 to 4 
feet, except around 5 feet west of the Marquesas Keys. Nearshore 
waters very rough. Scattered showers and isolated thunderstorms. 
.SATURDAY NIGHT...Northeast to east winds near 25 knots. Seas 2 
to 4 feet, except 5 to 6 feet west of the Marquesas Keys. 
Nearshore waters extremely rough. Scattered showers and isolated 
thunderstorms.
.SUNDAY...Northeast to east winds near 20 knots. Seas 2 to
3 feet, except 3 to 4 feet west of the Marquesas Keys. Nearshore 
waters rough. Scattered showers and isolated thunderstorms. 
.SUNDAY NIGHT THROUGH MONDAY NIGHT...Northeast to east winds 15 
to 20 knots. Seas 1 to 3 feet, except 3 to 4 feet west of the 
Marquesas Keys. Nearshore waters choppy. Scattered showers and 
isolated thunderstorms. 
.TUESDAY AND TUESDAY NIGHT...Northeast to east winds 10 to 15 
knots. Seas 1 to 2 feet, except 2 to 3 feet west of the Marquesas
Keys. Nearshore waters a light to moderate chop. Isolated showers
and thunderstorms. 

$$

GMZ042>044-202030-
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-
1039 AM EDT Fri Sep 20 2019

...SMALL CRAFT ADVISORY IN EFFECT...

.THIS AFTERNOON...Northeast to east winds near 25 knots. Seas 4 
to 5 feet. Nearshore waters extremely rough. Scattered showers. 
.TONIGHT...Northeast to east winds 25 to 30 knots in the evening,
then 20 to 25 knots. Seas 4 to 6 feet. Nearshore waters extremely
rough. Numerous showers and isolated thunderstorms. 
.SATURDAY...Northeast to east winds 20 to 25 knots. Seas 3 to 5 
feet. Nearshore waters very rough. Scattered showers and isolated 
thunderstorms. 
.SATURDAY NIGHT...Northeast to east winds near 25 knots. Seas 4 
to 5 feet. Nearshore waters extremely rough. Scattered showers and
isolated thunderstorms. 
.SUNDAY...Northeast to east winds near 20 knots. Seas 3 to 4 
feet. Nearshore waters rough. Scattered showers and isolated 
thunderstorms. 
.SUNDAY NIGHT THROUGH MONDAY NIGHT...Northeast to east winds 15 
to 20 knots. Seas 2 to 3 feet. Nearshore waters choppy. Scattered
showers and isolated thunderstorms. 
.TUESDAY...Northeast to east winds near 15 knots. Seas 2 to 3 
feet. Nearshore waters a moderate chop. Isolated showers and 
thunderstorms. 
.TUESDAY NIGHT...Northeast to east winds 10 to 15 knots. Seas
1 to 3 feet. Nearshore waters a light to moderate chop. Isolated 
showers and thunderstorms. 

$$

GMZ052>055-072>075-202030-
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-
1039 AM EDT Fri Sep 20 2019

...SMALL CRAFT ADVISORY IN EFFECT...

.THIS AFTERNOON...Northeast to east winds near 25 knots. Seas 6 
to 9 feet. Scattered showers. Isolated thunderstorms developing
southeast of the Upper Keys later this afternoon.
.TONIGHT...Northeast to east winds 25 to 30 knots in the evening,
then near 25 knots. Seas 7 to 10 feet. Numerous showers and 
isolated thunderstorms. 
.SATURDAY...Northeast to east winds 20 to 25 knots. Seas 6 to
9 feet. Scattered showers and isolated thunderstorms.
.SATURDAY NIGHT...Northeast to east winds near 25 knots. Seas 6 
to 10 feet. Scattered showers and isolated thunderstorms.
.SUNDAY...Northeast to east winds 20 to 25 knots. Seas subsiding
to 5 to 8 feet. Scattered showers and isolated thunderstorms. 
.SUNDAY NIGHT...Northeast to east winds near 20 knots. Seas 4 to 
7 feet. Scattered showers and isolated thunderstorms. 
.MONDAY AND MONDAY NIGHT...Northeast to east winds near 15 knots.
Seas 4 to 6 feet. Scattered showers and isolated thunderstorms. 
.TUESDAY...Northeast winds near 15 knots. Seas 3 to 5 feet. 
Scattered showers and isolated thunderstorms. 
.TUESDAY NIGHT...Northeast to east winds 10 to 15 knots. Seas
2 to 4 feet. Scattered showers and isolated thunderstorms. 

$$

GMZ033-034-202030-
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-
1039 AM EDT Fri Sep 20 2019

...SMALL CRAFT ADVISORY IN EFFECT...

.THIS AFTERNOON...Northeast to east winds near 25 knots. Seas 5 
to 8 feet. Isolated showers.
.TONIGHT...Northeast to east winds 25 to 30 knots in the evening,
then near 25 knots. Seas 6 to 8 feet. Scattered showers and 
isolated thunderstorms. 
.SATURDAY...Northeast to east winds 20 to 25 knots. Seas 4 to 7 
feet. Scattered showers and isolated thunderstorms. 
.SATURDAY NIGHT...Northeast to east winds near 25 knots. Seas 5 
to 8 feet. Scattered showers and isolated thunderstorms. 
.SUNDAY...Northeast to east winds near 20 knots. Seas subsiding 
to 4 to 6 feet. Scattered showers and isolated thunderstorms. 
.SUNDAY NIGHT...Northeast to east winds near 20 knots. Seas 4 to 
5 feet. Scattered showers and isolated thunderstorms. 
.MONDAY...Northeast to east winds decreasing to near 15 knots. 
Seas subsiding to 3 to 4 feet. Scattered showers and isolated 
thunderstorms.
.MONDAY NIGHT...Northeast to east winds near 15 knots. Seas 2 to
4 feet. Scattered showers and isolated thunderstorms. 
.TUESDAY AND TUESDAY NIGHT...Northeast winds 10 to 15 knots. Seas
2 to 3 feet. Isolated showers and thunderstorms. 

$$

CLR