Coastal Waters Forecast
Issued by NWS

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FZUS52 KKEY 241429
CWFKEY

Coastal Waters Forecast for the Florida Keys
National Weather Service Key West FL
1029 AM 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.

GMZ005-242030-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
1029 AM 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.

$$

GMZ031-242030-
Florida Bay including Barnes Sound, Blackwater Sound, and
Buttonwood Sound-
1029 AM EDT Sat Aug 24 2019

.THIS AFTERNOON...South to southwest winds 10 to 15 knots. Bay
waters a light to moderate chop. Scattered showers and isolated
thunderstorms.
.TONIGHT...Southwest winds 10 to 15 knots early, decreasing to
near 10 knots. Bay waters becoming a light chop. Scattered
showers and isolated thunderstorms.
.SUNDAY...Southwest winds 10 to 15 knots. Bay waters a light to
moderate chop. Scattered showers and isolated thunderstorms.
.SUNDAY NIGHT AND MONDAY...Southwest winds near 10 knots. Bay
waters a light chop. Scattered showers and isolated thunderstorms.
.MONDAY NIGHT...Southwest winds 5 to 10 knots. Bay waters smooth
to a light chop. Scattered showers and isolated thunderstorms.
.TUESDAY...Southwest winds near 5 knots. Bay waters smooth.
Scattered showers and isolated thunderstorms.
.TUESDAY NIGHT THROUGH WEDNESDAY NIGHT...Mainly west winds 5
to 10 knots. Bay waters smooth to a light chop. Scattered
showers and isolated thunderstorms.

$$

GMZ032-035-242030-
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-
1029 AM EDT Sat Aug 24 2019

.THIS AFTERNOON...southwest to west winds near 10 knots. Seas
around 1 foot. Nearshore waters a light chop. Scattered showers
and isolated thunderstorms.
.TONIGHT...Southwest winds near 10 knots. Seas around 1 foot.
Nearshore waters a light chop. Scattered showers and isolated
thunderstorms.
.SUNDAY...Southwest winds 10 to 15 knots. Seas 1 to 2 feet.
Nearshore waters a light to moderate chop. Scattered showers and
isolated thunderstorms.
.SUNDAY NIGHT...South to southwest winds near 10 knots. Seas
around 1 foot. Nearshore waters a light chop. Scattered showers
and isolated thunderstorms.
.MONDAY...Southwest winds near 10 knots. Seas around 1 foot.
Nearshore waters a light chop. Scattered showers and isolated
thunderstorms.
.MONDAY 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.
.TUESDAY...Variable winds near 5 knots. Seas 1 foot or less.
Nearshore waters smooth. Scattered showers and isolated
thunderstorms.
.TUESDAY NIGHT THROUGH WEDNESDAY NIGHT...Mainly west winds 5 to 10
knots. Seas 1 foot or less. Nearshore waters smooth to a light
chop. Scattered showers and isolated thunderstorms.

$$

GMZ042-242030-
Hawk Channel from Ocean Reef to Craig Key out to the reef-
1029 AM EDT Sat Aug 24 2019

.THIS AFTERNOON...South to southwest winds 10 to 15 knots. Seas 2
to 3 feet. Nearshore waters a light to moderate chop. Scattered
showers and isolated thunderstorms.
.TONIGHT...Southwest winds 10 to 15 knots, decreasing to near
10 knots. Seas around 1 to 3 feet, subsiding to 1 to 2 feet.
Nearshore waters a light to moderate chop, becoming a light chop.
Scattered showers and isolated thunderstorms.
.SUNDAY...Southwest winds 10 to 15 knots. Seas 1 to 3 feet.
Nearshore waters a light to moderate chop. Scattered showers and
isolated thunderstorms.
.SUNDAY NIGHT...South winds near 10 knots. Seas 1 to 2 feet.
Nearshore waters a light chop. Scattered showers and isolated
thunderstorms.
.MONDAY...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 NIGHT AND TUESDAY...Variable winds 5 to 10 knots. Seas
around 1 foot. Nearshore waters smooth to a light chop. Scattered
showers and isolated thunderstorms.
.TUESDAY NIGHT THROUGH WEDNESDAY NIGHT...Mainly west winds 5 to 10
knots. Seas around 1 foot. Nearshore waters smooth to a light chop.
Scattered showers and isolated thunderstorms.

$$

GMZ043-044-242030-
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-
1029 AM EDT Sat Aug 24 2019

.THIS AFTERNOON...Southwest winds near 10 knots. Seas 1 to 2
feet. Nearshore waters a light chop. Scattered showers and
isolated thunderstorms.
.TONIGHT...South to southwest winds 5 to 10 knots. 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 near 10 knots. Seas
1 to 2 feet. Nearshore waters a light chop. Scattered showers and
isolated thunderstorms.
.MONDAY...South to southwest winds near 10 knots. Seas 1 to 2
feet. Nearshore waters a light chop. Scattered showers and
isolated thunderstorms.
.MONDAY NIGHT...Mainly west winds 5 to 10 knots. Seas around 1
foot. Nearshore waters smooth to a light chop. Scattered showers
and isolated thunderstorms.
.TUESDAY...Variable winds near 5 knots. Seas 1 foot or less.
Nearshore waters smooth. Scattered showers and isolated
thunderstorms.
.TUESDAY NIGHT THROUGH WEDNESDAY NIGHT...Mainly west winds 5 to 10
knots. Seas around 1 foot. Nearshore waters smooth to a light chop.
Scattered showers and isolated thunderstorms.

$$

GMZ052-072-242030-
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-
1029 AM EDT Sat Aug 24 2019

.THIS AFTERNOON...Southwest winds 10 to 15 knots. Seas 2 to 3
feet. Scattered showers and isolated thunderstorms.
.TONIGHT...South to southwest winds 10 to 15 knots. Seas 2 to 3
feet. Scattered showers and isolated thunderstorms.
.SUNDAY...Southwest winds 10 to 15 knots. Seas 2 to 3 feet.
Scattered showers and isolated thunderstorms.
.SUNDAY NIGHT AND MONDAY...Southwest winds near 10 knots. Seas
around 2 feet. Scattered showers and isolated thunderstorms.
.MONDAY NIGHT...Southwest to west winds 5 to 10 knots. Seas
1 to 2 feet. Scattered showers and isolated thunderstorms.
.TUESDAY THROUGH WEDNESDAY NIGHT...Variable winds 5 to 10 knots.
Seas 1 to 2 feet. Scattered showers and isolated thunderstorms.

$$

GMZ053>055-073>075-242030-
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-
1029 AM EDT Sat Aug 24 2019

.THIS AFTERNOON...Southwest to west winds 5 to 10 knots. Seas 1
to 2 feet. Scattered showers and isolated thunderstorms.
.TONIGHT...South to southwest winds 5 to 10 knots. 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...South winds 5 to 10 knots. Seas around 1 foot.
Scattered showers and isolated thunderstorms.
.MONDAY...South to southwest winds near 10 knots. Seas 1 to 2
feet. Scattered showers and isolated thunderstorms.
.MONDAY NIGHT THROUGH WEDNESDAY NIGHT...Variable winds 5 to
10 knots. Seas 1 to 2 feet. Scattered showers and isolated
thunderstorms.

$$

GMZ033-034-242030-
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-
1029 AM EDT Sat Aug 24 2019

.THIS AFTERNOON...Variable winds 5 to 10 knots, becoming
northwest to north near 10 knots. Seas around 1 foot, building to
1 to 2 feet. Scattered showers and isolated thunderstorms.
.TONIGHT...Variable winds 5 to 10 knots. Seas around 1 foot.
Scattered showers and isolated thunderstorms.
.SUNDAY THROUGH MONDAY...South to southwest winds near 10 knots.
Seas 1 to 2 feet. Scattered showers and isolated thunderstorms.
.MONDAY NIGHT...South winds 5 to 10 knots. Seas around 1 foot.
Scattered showers and isolated thunderstorms.
.TUESDAY THROUGH WEDNESDAY NIGHT...Southwest to west winds 5 to 10
knots. Seas around 1 foot. Scattered showers and isolated
thunderstorms.

$$


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