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Coastal Waters Forecast (CWF)

Issued by Key West, FL (KEY)

                            
000
FZUS52 KKEY 242018
CWFKEY

Coastal Waters Forecast for the Florida Keys
National Weather Service Key West FL
418 PM EDT Sat Aug 24 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.

GMZ005-250230-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
418 PM EDT Sat Aug 24 2019

.SYNOPSIS...A broad area of low pressure over south Florida will 
move slowly lift north and then northeastward, and away from our
region this weekend. Thereafter, a high pressure cell over the
island of Cuba will lift northward into the Straits of Florida, 
then into South Florida.

The Approximate Shoreward Edge of the Gulf Stream as of
August 24, 2019...

44 NM South of Dry Tortugas Light...on Loggerhead Key.
19 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
17 NM South of Sand Key Light...off Key West.
22 NM South of Looe Key...off Big Pine Key.
25 NM South of Sombrero Key Light...off Marathon.
19 NM Southeast of Alligator Reef Light...off Islamorada.
16 NM Southeast of Molasses Reef Light...off Key Largo.
 8 NM East of Carysfort Reef Light...off Ocean Reef.

Gulf Stream Information Courtesy of the Naval Oceanographic Office.

$$

GMZ031-250230-
Florida Bay including Barnes Sound, Blackwater Sound, and
Buttonwood Sound-
418 PM EDT Sat Aug 24 2019

.TONIGHT...Southwest winds 10 to 15 knots early, decreasing to
near 10 knots. Bay waters a light to moderate chop. Scattered 
showers and isolated thunderstorms.
.SUNDAY...Southwest winds increasing to 10 to 15 knots. Bay 
waters becoming a light to moderate chop. Scattered showers and 
isolated thunderstorms. 
.SUNDAY NIGHT...South to southwest winds decreasing to 5 to 10 
knots. Bay waters becoming smooth to a light chop. Scattered 
showers and isolated thunderstorms. 
.MONDAY...Southwest winds increasing to near 10 knots. Bay waters
becoming a light chop. Scattered showers and isolated 
thunderstorms. 
.MONDAY NIGHT...Southwest winds decreasing to near 5 knots. Bay 
waters becoming smooth. Isolated showers and thunderstorms. 
.TUESDAY...Southwest to west winds 5 to 10 knots. Bay waters 
smooth to a light chop. Isolated showers and thunderstorms.
.TUESDAY NIGHT...West to northwest winds near 5 knots. Bay waters
smooth. Isolated showers and thunderstorms. 
.WEDNESDAY...West to northwest winds 5 to 10 knots. Bay waters
smooth to a light chop. Scattered showers and isolated
thunderstorms. 
.WEDNESDAY NIGHT...Northwest winds 5 to 10 knots. Bay waters
smooth to a light chop. Scattered showers and isolated
thunderstorms. 
.THURSDAY...West to northwest winds near 5 knots. Bay waters 
smooth. Scattered showers and isolated thunderstorms. 
.THURSDAY NIGHT...West winds near 5 knots. Bay waters smooth. 
Scattered showers and isolated thunderstorms. 

$$

GMZ032-035-250230-
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-
418 PM EDT Sat Aug 24 2019

.TONIGHT...West to northwest winds near 10 knots, becoming 
southwest 5 to 10 knots. Seas 1 foot or less. Nearshore waters 
smooth to a light chop. Scattered showers and isolated 
thunderstorms. 
.SUNDAY...Southwest winds near 10 knots. Seas 1 foot or less.
Nearshore waters a light chop. Scattered showers and isolated
thunderstorms. 
.SUNDAY NIGHT...Southwest winds 5 to 10 knots. Seas 1 foot or
less. Nearshore waters smooth to a light chop. Scattered showers
and isolated thunderstorms. 
.MONDAY...Southwest winds 5 to 10 knots. Seas 1 foot or less.
Nearshore waters smooth to a light chop. Scattered showers and
isolated thunderstorms. 
.MONDAY NIGHT...Southwest to west winds near 5 knots. Seas 1 foot
or less. Nearshore waters smooth. Isolated showers and 
thunderstorms. 
.TUESDAY...South to southwest winds near 5 knots becoming west to
northwest late in the afternoon. Seas 1 foot or less. Nearshore
waters smooth. Isolated showers and thunderstorms. 
.TUESDAY NIGHT...Northwest winds near 5 knots. Seas 1 foot or
less. Nearshore waters smooth. Isolated showers and
thunderstorms. 
.WEDNESDAY...Northwest winds 5 to 10 knots. Seas around 1 foot.
Nearshore waters smooth to a light chop. Scattered showers and
isolated thunderstorms. 
.WEDNESDAY NIGHT...Northwest winds 5 to 10 knots. Seas 1 to
2 feet. Nearshore waters smooth to a light chop. Scattered
showers and isolated thunderstorms. 
.THURSDAY...West to northwest winds 5 to 10 knots. Seas 1 to
2 feet. Nearshore waters smooth to a light chop. Scattered
showers and isolated thunderstorms. 
.THURSDAY NIGHT...Southwest to west winds near 5 knots. Seas
1 foot or less. Nearshore waters smooth. Scattered showers and
isolated thunderstorms. 

$$

GMZ042-250230-
Hawk Channel from Ocean Reef to Craig Key out to the reef-
418 PM EDT Sat Aug 24 2019

.TONIGHT...South to southwest winds 10 to 15 knots, decreasing to
near 10 knots. Seas 1 to 2 feet. Nearshore waters a light to 
moderate chop. Scattered showers and isolated thunderstorms. 
.SUNDAY...Southwest winds increasing to 10 to 15 knots. Seas 1 to
2 feet. Nearshore waters becoming a light to moderate chop. 
Scattered showers and isolated thunderstorms. 
.SUNDAY NIGHT...South to southwest winds decreasing to near 10 
knots. Seas 1 to 2 feet. Nearshore waters becoming a light chop. 
Scattered showers and isolated thunderstorms. 
.MONDAY...Southwest winds increasing to near 10 knots. Seas 
around 1 foot. Nearshore waters becoming a light chop. Scattered 
showers and isolated thunderstorms. 
.MONDAY NIGHT...Southwest winds decreasing to near 5 knots. Seas 
1 foot or less. Nearshore waters becoming smooth. Isolated 
showers and thunderstorms. 
.TUESDAY...Southwest winds 5 to 10 knots. Seas 1 foot or less. 
Nearshore waters smooth to a light chop. Isolated showers and 
thunderstorms.
.TUESDAY NIGHT...Northwest winds near 5 knots. Seas 1 foot or
less. Nearshore waters smooth. Isolated showers and
thunderstorms. 
.WEDNESDAY...Northwest winds 5 to 10 knots. Seas around 1 foot.
Nearshore waters smooth to a light chop. Scattered showers and
isolated thunderstorms. 
.WEDNESDAY NIGHT...Northwest winds 5 to 10 knots. Seas around
1 foot. Nearshore waters smooth to a light chop. Scattered
showers and isolated thunderstorms. 
.THURSDAY...West to northwest winds near 5 knots. Seas around 1 
foot. Nearshore waters smooth. Scattered showers and isolated 
thunderstorms. 
.THURSDAY NIGHT...Southwest winds near 5 knots. Seas around
1 foot. Nearshore waters smooth. Scattered showers and isolated
thunderstorms. 

$$

GMZ043-044-250230-
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-
418 PM EDT Sat Aug 24 2019

.TONIGHT...West winds near 10 knots, becoming southwest late. 
Seas around 1 foot. Nearshore waters smooth to a light chop. 
Scattered showers and isolated thunderstorms. 
.SUNDAY...Southwest winds near 10 knots. Seas 1 to 2 feet.
Nearshore waters a light chop. Scattered showers and isolated
thunderstorms. 
.SUNDAY NIGHT...South to southwest winds 5 to 10 knots. Seas
around 1 foot. Nearshore waters smooth to a light chop. Scattered
showers and isolated thunderstorms. 
.MONDAY...Southwest winds 5 to 10 knots. Seas around 1 foot.
Nearshore waters smooth to a light chop. Scattered showers and
isolated thunderstorms. 
.MONDAY NIGHT...Southwest to west winds near 5 knots, becoming
southeast to south late. Seas 1 foot or less. Nearshore waters 
smooth. Isolated showers and thunderstorms.
.TUESDAY...Variable winds near 5 knots. Seas 1 foot or less. 
Nearshore waters smooth. Slight chance of showers and isolated 
thunderstorms. 
.TUESDAY NIGHT...Northwest to north winds near 5 knots. Seas
1 foot or less. Nearshore waters smooth. Isolated showers and
thunderstorms. 
.WEDNESDAY...Northwest winds 5 to 10 knots. Seas around 1 foot.
Nearshore waters smooth to a light chop. Scattered showers and
isolated thunderstorms. 
.WEDNESDAY NIGHT...Northwest winds 5 to 10 knots. Seas around
1 foot. Nearshore waters smooth to a light chop. Scattered
showers and isolated thunderstorms. 
.THURSDAY...West to northwest winds 5 to 10 knots. Seas 1 to
2 feet. Nearshore waters smooth to a light chop. Scattered
showers and isolated thunderstorms. 
.THURSDAY NIGHT...West winds near 5 knots. Seas 1 to 2 feet.
Nearshore waters smooth. Scattered showers and isolated
thunderstorms. 

$$

GMZ052-072-250230-
Straits of Florida from Ocean Reef to Craig Key out 20 NM-
Straits of Florida from Ocean Reef to Craig Key 20 to 60 NM out-
418 PM EDT Sat Aug 24 2019

.TONIGHT...South to southwest winds 10 to 15 knots. Seas 1 to 2 
feet. Scattered showers and isolated thunderstorms. 
.SUNDAY...Southwest winds 10 to 15 knots. Seas 1 to 2 feet. 
Scattered showers and isolated thunderstorms. 
.SUNDAY NIGHT...South to southwest winds decreasing to near 10 
knots. Seas 1 to 2 feet. Scattered showers and isolated 
thunderstorms. 
.MONDAY...Southwest winds increasing to near 10 knots. Seas 
around 1 foot. Scattered showers and isolated thunderstorms. 
.MONDAY NIGHT...South to southwest winds decreasing to near 5 
knots. Seas 1 foot or less. Isolated showers and thunderstorms. 
.TUESDAY...Variable winds near 5 knots. Seas 1 to 2 feet. Isolated
showers and thunderstorms.
.TUESDAY NIGHT...Variable winds near 5 knots. Seas 1 to 2 feet. 
Isolated showers and thunderstorms. 
.WEDNESDAY...Northwest winds 5 to 10 knots. Seas 1 to 2 feet.
Scattered showers and isolated thunderstorms. 
.WEDNESDAY NIGHT...Northwest winds 5 to 10 knots. Seas 1 to
2 feet. Scattered showers and isolated thunderstorms. 
.THURSDAY...West to northwest winds near 5 knots. Seas 1 to 2 
feet. Scattered showers and isolated thunderstorms. 
.THURSDAY NIGHT...Southwest winds near 5 knots. Seas 1 to 2 feet.
Scattered showers and isolated thunderstorms. 

$$

GMZ053>055-073>075-250230-
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 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-
418 PM EDT Sat Aug 24 2019

.TONIGHT...West winds near 10 knots, becoming southwest late. 
Seas 1 to 2 feet. Scattered showers and isolated thunderstorms.
.SUNDAY...Southwest winds 10 to 15 knots. Seas 1 to 2 feet.
Scattered showers and isolated thunderstorms. 
.SUNDAY NIGHT...South winds 5 to 10 knots. Seas around 1 foot.
Scattered showers and isolated thunderstorms. 
.MONDAY...South to southwest winds 5 to 10 knots. Seas around
1 foot. Scattered showers and isolated thunderstorms. 
.MONDAY NIGHT...Southeast winds near 5 knots. Seas around 1 foot.
Isolated showers and thunderstorms. 
.TUESDAY...Variable winds near 5 knots. Seas around 1 foot. 
Isolated showers and thunderstorms. 
.TUESDAY NIGHT...Variable winds 5 to 10 knots. Seas around 1 
foot. Isolated showers and thunderstorms. 
.WEDNESDAY...Northwest to north winds 5 to 10 knots. Seas around
1 foot. Scattered showers and isolated thunderstorms. 
.WEDNESDAY NIGHT...Northwest winds 5 to 10 knots. Seas 1 to
2 feet. Scattered showers and isolated thunderstorms. 
.THURSDAY...Northwest winds 5 to 10 knots. Seas 1 to 2 feet.
Scattered showers and isolated thunderstorms. 
.THURSDAY NIGHT...West to northwest winds near 5 knots. Seas 1 to
2 feet. Scattered showers and isolated thunderstorms. 

$$

GMZ033-034-250230-
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-
418 PM EDT Sat Aug 24 2019

.TONIGHT...Northwest to north winds near 10 knots, becoming 
southwest late. Seas 1 to 2 feet. Scattered showers and isolated 
thunderstorms. 
.SUNDAY...Southwest winds 5 to 10 knots. Seas 1 to 2 feet.
Scattered showers and isolated thunderstorms. 
.SUNDAY NIGHT...Southwest winds 5 to 10 knots. Seas 1 to 2 feet.
Scattered showers and isolated thunderstorms. 
.MONDAY...Southwest winds 5 to 10 knots. Seas around 1 foot.
Scattered showers and isolated thunderstorms. 
.MONDAY NIGHT...South to southwest winds 5 to 10 knots. Seas
around 1 foot. Isolated showers and thunderstorms. 
.TUESDAY...South to southwest winds near 5 knots, becoming
northwest late. Seas around 1 foot. Isolated showers and thunderstorms.
.TUESDAY NIGHT...Northwest winds 5 to 10 knots. Seas 1 to 2 feet.
Isolated showers and thunderstorms. 
.WEDNESDAY...Northwest winds 5 to 10 knots. Seas 1 to 2 feet.
Scattered showers and isolated thunderstorms. 
.WEDNESDAY NIGHT...Northwest winds 5 to 10 knots. Seas 1 to
2 feet. Scattered showers and isolated thunderstorms. 
.THURSDAY...Northwest winds 5 to 10 knots. Seas 1 to 2 feet.
Scattered showers and isolated thunderstorms. 
.THURSDAY NIGHT...Southwest to west winds 5 to 10 knots. Seas
1 to 2 feet. Scattered showers and isolated thunderstorms. 

$$