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Coastal Waters Forecast (CWF)

Issued by Key West, FL (KEY)

                            
000
FZUS52 KKEY 222031
CWFKEY

Coastal Waters Forecast for the Florida Keys
National Weather Service Key West FL
431 PM EDT Thu Aug 22 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.

GMZ005-230230-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
431 PM EDT Thu Aug 22 2019

.SYNOPSIS...A trough axis over the Bahamas will move slowly 
westward tonight and cross the Keys coastal waters Friday and 
Friday night. The trough is expected to lift northward and away 
from our region early this weekend. Thereafter, a high pressure 
cell over the island of Cuba will gradually lift northward into 
the Straits of Florida, then into South Florida.

The Approximate Shoreward Edge of the Gulf Stream as of
August 22...

25 NM South of Dry Tortugas Light...on Loggerhead Key.
10 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
16 NM South of Sand Key Light...off Key West.
33 NM South of Looe Key...off Big Pine Key.
30 NM South of Sombrero Key Light...off Marathon.
16 NM Southeast of Alligator Reef Light...off Islamorada.
11 NM Southeast of Molasses Reef Light...off Key Largo.
 6 NM East of Carysfort Reef Light...off Ocean Reef.

Gulf Stream Information Courtesy of the Naval Oceanographic
Office.

$$

GMZ031-230230-
Florida Bay including Barnes Sound, Blackwater Sound, and
Buttonwood Sound-
431 PM EDT Thu Aug 22 2019

.TONIGHT...Northeast winds 5 to 10 knots, becoming northeast to
east and increasing to near 10 knots. Bay waters smooth to a 
light chop, becoming a light chop. Scattered showers and 
thunderstorms.
.FRIDAY...East winds 5 to 10 knots, becoming southeast and
increasing to near 10 knots in the afternoon. Bay waters smooth to
a light chop, becoming a light chop. Numerous showers and 
thunderstorms. 
.FRIDAY NIGHT...Southeast winds near 10 knots. Bay waters a light
chop. Scattered showers and thunderstorms. 
.SATURDAY...South winds near 10 knots. Bay waters a light chop. 
Scattered showers and thunderstorms. 
.SATURDAY NIGHT...South winds 10 to 15 knots. Bay waters a light
to moderate chop. Scattered showers and thunderstorms. 
.SUNDAY...South to southwest winds near 10 knots. Bay waters 
a light chop. Scattered showers and thunderstorms. 
.SUNDAY NIGHT...South winds 5 to 10 knots. Bay waters smooth to a
light chop. Scattered showers and thunderstorms. 
.MONDAY...South winds 5 to 10 knots. Bay waters smooth to a light
chop. Scattered showers and thunderstorms. 
.MONDAY NIGHT...Southeast to south winds near 5 knots. Bay waters
smooth. Scattered showers and thunderstorms. 
.TUESDAY...South to southwest winds near 5 knots. Bay waters 
smooth. Scattered showers and thunderstorms.
.TUESDAY NIGHT...Variable winds 5 to 10 knots. Bay waters smooth
to a light chop. Scattered showers and thunderstorms. 

$$

GMZ032-035-230230-
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-
431 PM EDT Thu Aug 22 2019

.TONIGHT...North to northeast winds 5 to 10 knots, becoming 
northeast and increasing to near 10 knots. Seas around 1 foot,
building to 1 to 2 feet. Nearshore waters smooth to a light chop,
becoming a light chop. Scattered showers and thunderstorms.
.FRIDAY...East winds 5 to 10 knots. Seas 1 foot or less.
Nearshore waters smooth to a light chop. Scattered showers and
thunderstorms. 
.FRIDAY NIGHT...Southeast winds near 10 knots. Seas around 1 foot.
Nearshore waters a light chop. Scattered showers and 
thunderstorms. 
.SATURDAY...South winds near 10 knots. Seas around 1 foot. 
Nearshore waters a light chop. Scattered showers and 
thunderstorms. 
.SATURDAY NIGHT...South winds 10 to 15 knots. Seas 1 to 2 feet. 
Nearshore waters a light to moderate chop. Scattered showers and 
thunderstorms. 
.SUNDAY...South to southwest winds 10 to 15 knots. Seas 1 to
2 feet, except 3 feet west of the Marquesas Keys. Nearshore 
waters a light to moderate chop. Scattered showers and 
thunderstorms. 
.SUNDAY NIGHT AND MONDAY...South winds near 10 knots. Seas around
1 foot. Nearshore waters a light chop. Scattered showers and 
thunderstorms. 
.MONDAY NIGHT...Southeast to south winds 5 to 10 knots. Seas 1 
foot or less. Nearshore waters smooth to a light chop. Scattered 
showers and thunderstorms. 
.TUESDAY...South winds 5 to 10 knots. Seas 1 foot or less.
Nearshore waters smooth to a light chop. Scattered showers and
thunderstorms. 
.TUESDAY NIGHT...Variable winds 5 to 10 knots. Seas less than 1 
foot. Nearshore waters smooth to a light chop. Scattered showers 
and thunderstorms. 

$$

GMZ042>044-230230-
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-
431 PM EDT Thu Aug 22 2019

.TONIGHT...North to northeast winds 5 to 10 knots, becoming
northeast and increasing to near 10 knots. Seas around 1 foot,
building to 1 to 2 feet. Nearshore waters smooth to a light chop,
becoming a light chop. Scattered showers and thunderstorms. 
.FRIDAY...East winds 5 to 10 knots, becoming east to southeast in
the afternoon. Seas around 1 foot. Nearshore waters smooth to a 
light chop. Scattered showers and thunderstorms. 
.FRIDAY NIGHT...Southeast winds near 10 knots. Seas 1 to 2 feet. 
Nearshore waters a light chop. Scattered showers and 
thunderstorms.
.SATURDAY...South winds near 10 knots. Seas 1 to 2 feet. 
Nearshore waters a light chop. Scattered showers and 
thunderstorms. 
.SATURDAY NIGHT...South winds 10 to 15 knots. Seas 1 to 3 feet. 
Nearshore waters a light to moderate chop. Scattered showers and 
thunderstorms. 
.SUNDAY...South to southwest winds 10 to 15 knots. Seas 1 to 3 
feet. Nearshore waters a light to moderate chop. Scattered showers
and thunderstorms. 
.SUNDAY NIGHT AND MONDAY...South winds near 10 knots. Seas 1 to 2
feet. Nearshore waters a light chop. Scattered showers and 
thunderstorms. 
.MONDAY NIGHT AND TUESDAY...Southeast to south winds 5 to 10 
knots. Seas around 1 foot. Nearshore waters smooth to a light 
chop. Scattered showers and thunderstorms. 
.TUESDAY NIGHT...Variable winds near 5 knots. Seas 1 foot or 
less. Nearshore waters smooth. Scattered showers and 
thunderstorms. 

$$

GMZ052-053-072-073-230230-
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 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-
431 PM EDT Thu Aug 22 2019

.TONIGHT...Northeast winds near 10 knots. Seas 2 to 3 feet. 
Scattered showers and thunderstorms. 
.FRIDAY...East to southeast winds near 10 knots. Seas 2 to 3 
feet. Scattered showers and thunderstorms. 
.FRIDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to 4 feet.
Scattered showers and thunderstorms. 
.SATURDAY...South winds near 10 knots. Seas 2 to 3 feet. 
Scattered showers and thunderstorms. 
.SATURDAY NIGHT...Southeast to south winds near 15 knots. Seas 3 
to 4 feet. Scattered showers and thunderstorms. 
.SUNDAY...South winds 10 to 15 knots. Seas 2 to 4 feet. Scattered
showers and thunderstorms. 
.SUNDAY NIGHT...South winds near 10 knots. Seas 2 to 3 feet. 
Scattered showers and thunderstorms. 
.MONDAY...Southeast to south winds 5 to 10 knots. Seas 1 to 2 
feet. Scattered showers and thunderstorms. 
.MONDAY NIGHT...Southeast winds 5 to 10 knots. Seas 1 to 2 feet. 
Scattered showers and thunderstorms. 
.TUESDAY...East to southeast winds near 5 knots. Seas 1 to 2 
feet. Scattered showers and thunderstorms. 
.TUESDAY NIGHT...East winds near 5 knots. Seas around 1 foot. 
Scattered showers and thunderstorms. 

$$

GMZ054-055-074-075-230230-
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 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-
431 PM EDT Thu Aug 22 2019

.TONIGHT...North winds 5 to 10 knots, becoming northeast. Seas 1 
to 2 feet. Scattered showers and thunderstorms. 
.FRIDAY...North to northeast winds near 10 knots. Seas around 2 
feet. Scattered showers and thunderstorms. 
.FRIDAY NIGHT...North winds 5 to 10 knots, becoming southeast. 
Seas 1 to 2 feet. Scattered showers and thunderstorms. 
.SATURDAY...South winds near 10 knots. Seas around 2 feet. 
Scattered showers and thunderstorms. 
.SATURDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet. 
Scattered showers and thunderstorms. 
.SUNDAY...South to southwest winds 10 to 15 knots. Seas 2 to 4 
feet. Scattered showers and thunderstorms. 
.SUNDAY NIGHT...South winds near 10 knots. Seas 1 to 3 feet. 
Scattered showers and thunderstorms. 
.MONDAY...Southeast to south winds 5 to 10 knots. Seas 1 to
2 feet. Scattered showers and thunderstorms. 
.MONDAY NIGHT...Southeast winds 5 to 10 knots. Seas 1 to 2 feet.
Scattered showers and thunderstorms. 
.TUESDAY AND TUESDAY NIGHT...East winds 5 to 10 knots. Seas 1 to 2
feet. Scattered showers and thunderstorms. 

$$

GMZ033-034-230230-
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-
431 PM EDT Thu Aug 22 2019

.TONIGHT...North winds near 10 knots, becoming northeast. Seas 
around 2 feet. Scattered showers and thunderstorms.
.FRIDAY...Northeast winds near 10 knots. Seas around 2 feet. 
Scattered showers and thunderstorms. 
.FRIDAY NIGHT...North to northeast winds 5 to 10 knots, becoming 
east to southeast. Seas 1 to 2 feet. Scattered showers and 
thunderstorms.
.SATURDAY...Southeast winds near 10 knots, becoming south. Seas 
around 2 feet. Scattered showers and thunderstorms.
.SATURDAY NIGHT...South winds near 10 knots. Seas around 2 feet. 
Scattered showers and thunderstorms. 
.SUNDAY...South to southwest winds 10 to 15 knots. Seas 2 to 3 
feet. Scattered showers and thunderstorms. 
.SUNDAY NIGHT AND MONDAY...South winds near 10 knots. Seas around
2 feet. Scattered showers and thunderstorms. 
.MONDAY NIGHT...Southeast to south winds 5 to 10 knots. Seas 1 to
2 feet. Scattered showers and thunderstorms. 
.TUESDAY...Southeast to south winds 5 to 10 knots. Seas 1 to 2
feet. Scattered showers and thunderstorms. 
.TUESDAY NIGHT...East winds near 5 knots. Seas around 1 foot. 
Scattered showers and thunderstorms. 

$$

Haner