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Coastal Waters Forecast (CWF)

Issued by Key West, FL (KEY)

                            
000
FZUS52 KKEY 181431
CWFKEY

Coastal Waters Forecast for the Florida Keys
National Weather Service Key West FL
1031 AM EDT Sun Aug 18 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.

GMZ005-182045-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
1031 AM EDT Sun Aug 18 2019

.SYNOPSIS...A weak high pressure ridge axis will be located 
across Central Florida through Wednesday. The Atlantic ridge will
lift up across North Florida on Thursday. Gentle easterly breezes
over the Keys waters will become moderate on Monday in advance of
a weak tropical wave that will brush by on Monday evening. 

The Approximate Shoreward Edge of the Gulf Stream as of
August 17, 2019...

44 NM South of Dry Tortugas Light...on Loggerhead Key.
47 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
49 NM South of Sand Key Light...off Key West.
53 NM South of Looe Key...off Big Pine Key.
48 NM South of Sombrero Key Light...off Marathon.
18 NM Southeast of Alligator Reef Light...off Islamorada.
12 NM Southeast of Molasses Reef Light...off Key Largo.
 3 NM East of Carysfort Reef Light...off Ocean Reef.

Gulf Stream Information Courtesy of the Naval Oceanographic
Office.

$$

GMZ031-182045-
Florida Bay including Barnes Sound, Blackwater Sound, and
Buttonwood Sound-
1031 AM EDT Sun Aug 18 2019

.THIS AFTERNOON...East winds 5 to 10 knots, increasing to near 10
knots. Bay waters smooth to a light chop, becoming a light chop. 
Isolated showers and thunderstorms.
.TONIGHT...Northeast to east winds near 10 knots. Bay waters a
light chop. Isolated showers and thunderstorms in the evening,
then scattered showers and isolated thunderstorms after midnight.
.MONDAY...East winds 10 to 15 knots. Bay waters a light to
moderate chop. Scattered showers and thunderstorms. 
.MONDAY NIGHT AND TUESDAY...East to southeast winds 10 to 15 
knots. Bay waters a light to moderate chop. Scattered showers and 
thunderstorms. 
.TUESDAY NIGHT...East to southeast winds near 10 knots. Bay
waters a light chop. Scattered showers and thunderstorms. 
.WEDNESDAY THROUGH THURSDAY NIGHT...East to southeast winds 5 to 
10 knots. Bay waters smooth to a light chop. Scattered showers and
thunderstorms. 

$$

GMZ032-035-182045-
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-
1031 AM EDT Sun Aug 18 2019

.THIS AFTERNOON...East winds near 10 knots. Seas 1 foot or less. 
Nearshore waters a light chop. Isolated showers and thunderstorms.
.TONIGHT...Northeast to east winds 10 to 15 knots. Seas 1 to
2 feet. Nearshore waters a light to moderate chop. Isolated 
showers and thunderstorms in the evening, then scattered showers 
and isolated thunderstorms after midnight.
.MONDAY...East winds 10 to 15 knots. Seas 1 to 2 feet. Nearshore
waters a light to moderate chop. Scattered showers and
thunderstorms. 
.MONDAY NIGHT AND TUESDAY...East to southeast winds 10 to 15 
knots. Seas 1 to 2 feet. Nearshore waters a light to moderate 
chop. Scattered showers and thunderstorms. 
.TUESDAY NIGHT...East to southeast winds 10 to 15 knots. Seas
1 to 2 feet. Nearshore waters a light to moderate chop. Scattered
showers and thunderstorms. 
.WEDNESDAY...East winds 10 to 15 knots. Seas 1 to 2 feet.
Nearshore waters a light to moderate chop. Scattered showers and
thunderstorms. 
.WEDNESDAY NIGHT THROUGH THURSDAY NIGHT...East to southeast winds
near 10 knots. Seas 1 foot or less. Nearshore waters a light 
chop. Scattered showers and thunderstorms. 

$$

GMZ042>044-182045-
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-
1031 AM EDT Sun Aug 18 2019

.THIS AFTERNOON...East winds 10 to 15 knots. Seas 1 to 2 feet. 
Nearshore waters a light chop. 
.TONIGHT...Northeast to east winds 10 to 15 knots. Seas 1 to
3 feet. Nearshore waters a light to moderate chop. Isolated 
showers and thunderstorms in the evening, then scattered showers 
and isolated thunderstorms after midnight.
.MONDAY...East winds near 15 knots. Seas 2 to 3 feet. Nearshore
waters a moderate chop. Scattered showers and thunderstorms. 
.MONDAY NIGHT AND TUESDAY...East to southeast winds 10 to 15 
knots. Seas 1 to 3 feet. Nearshore waters a light to moderate 
chop. Scattered showers and thunderstorms. 
.TUESDAY NIGHT...East to southeast winds 10 to 15 knots. Seas
1 to 2 feet. Nearshore waters a light to moderate chop. Scattered
showers and thunderstorms. 
.WEDNESDAY...East winds 10 to 15 knots. Seas 1 to 2 feet.
Nearshore waters a light to moderate chop. Scattered showers and
thunderstorms. 
.WEDNESDAY NIGHT...East to southeast winds near 10 knots. Seas
1 to 2 feet. Nearshore waters a light chop. Scattered showers and
thunderstorms. 
.THURSDAY AND THURSDAY NIGHT...East winds near 10 knots. Seas 1 
to 2 feet. Nearshore waters a light chop. Scattered showers and 
thunderstorms. 

$$

GMZ052>055-072>075-182045-
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-
1031 AM EDT Sun Aug 18 2019

.THIS AFTERNOON...East winds 10 to 15 knots. Seas 2 to 3 feet. 
Isolated showers and thunderstorms. 
.TONIGHT...Northeast to east winds 10 to 15 knots. Seas 2 to
4 feet. Scattered showers and isolated thunderstorms. 
.MONDAY...Northeast to east winds near 15 knots. Seas 3 to 5 
feet. Scattered showers and thunderstorms. 
.MONDAY NIGHT...East to southeast winds 10 to 15 knots. Seas 3 to
4 feet. Scattered showers and thunderstorms. 
.TUESDAY...East to southeast winds 10 to 15 knots. Seas 2 to
3 feet. Scattered showers and thunderstorms. 
.TUESDAY NIGHT...East to southeast winds 10 to 15 knots. Seas
2 to 3 feet. Scattered showers and thunderstorms. 
.WEDNESDAY...East winds 10 to 15 knots. Seas 2 to 3 feet.
Scattered showers and thunderstorms. 
.WEDNESDAY NIGHT THROUGH THURSDAY NIGHT...East to southeast winds
near 10 knots. Seas 2 to 3 feet. Scattered showers and 
thunderstorms. 

$$

GMZ033-034-182045-
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-
1031 AM EDT Sun Aug 18 2019

.THIS AFTERNOON...East to southeast winds near 10 knots. Seas 1 
to 2 feet. Isolated showers and thunderstorms. 
.TONIGHT...Northeast to east winds 10 to 15 knots. Seas 1 to
2 feet. Isolated showers and thunderstorms. 
.MONDAY...East winds 10 to 15 knots. Seas 1 to 3 feet. Isolated
showers and thunderstorms. 
.MONDAY NIGHT...East to southeast winds 10 to 15 knots. Seas 1 to
3 feet. Scattered showers and thunderstorms. 
.TUESDAY...East to southeast winds 10 to 15 knots. Seas around
2 feet. Scattered showers and thunderstorms. 
.TUESDAY NIGHT AND WEDNESDAY...East to southeast winds 10 to 15 
knots. Seas 1 to 3 feet. Scattered showers and thunderstorms. 
.WEDNESDAY NIGHT...East to southeast winds near 10 knots. Seas
1 to 2 feet. Scattered showers and thunderstorms. 
.THURSDAY...East to southeast winds 5 to 10 knots. Seas 1 to
2 feet. Scattered showers and thunderstorms. 
.THURSDAY NIGHT...East winds 5 to 10 knots. Seas around 1 foot.
Scattered showers and thunderstorms. 

$$