Coastal Waters Forecast
Issued by NWS

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FZUS52 KKEY 250320
CWFKEY

Coastal Waters Forecast for the Florida Keys
National Weather Service Key West FL
1020 PM EST Fri Nov 24 2017

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.

GMZ005-250930-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
1020 PM EST Fri Nov 24 2017

.SYNOPSIS...Low surface pressure will pull eastward from the
the Southeastern United States overnight, dragging a weakened
front more to the southeast of the Florida Keys. An area of high
pressure will build to the southeast down the Florida peninsula
Saturday and Saturday night.

The approximate shoreward edge of the Gulf Stream current, as of
November twenty-fifth, 2017,

 4 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
 2 NM South of Sand Key Light...off Key West.
 4 NM South of Looe Key...off Big Pine Key.
 9 NM South of Sombrero Key Light...off Marathon.
 8 NM Southeast of Alligator Reef Light...off Islamorada.
 4 NM Southeast of Molasses Reef Light...off Key Largo.
 2 NM East of Carysfort Reef Light...off Ocean Reef.

Gulf Stream Information Courtesy of the Naval Oceanographic Office.

$$

GMZ031-250930-
Florida Bay including Barnes Sound, Blackwater Sound, and
Buttonwood Sound-
1020 PM EST Fri Nov 24 2017

.OVERNIGHT...Northwest to north winds 10 to 15 knots, becoming
north and decreasing to 5 to 10 knots. Bay waters a light to
moderate chop, becoming smooth to a light chop.
.SATURDAY...Northwest to north winds 5 knots, becoming variable.
Bay waters smooth.
.SATURDAY NIGHT...Winds becoming northeast 5 to 10 knots. Bay
waters smooth to a light chop. Isolated showers.
.SUNDAY...Northeast to east winds near 10 knots. Bay waters a
light chop. Scattered showers and isolated thunderstorms.
.SUNDAY NIGHT...Northeast winds 10 to 15 knots. Bay waters a
light to moderate chop. Scattered showers and isolated
thunderstorms.
.MONDAY...Northeast to east winds 10 to 15 knots. Bay waters a
light to moderate chop. Isolated showers.
.MONDAY NIGHT...Northeast to east winds 10 to 15 knots. Bay
waters a light to moderate chop. Isolated showers.
.TUESDAY...East winds 10 to 15 knots. Bay waters a light to
moderate chop. Isolated showers.
.TUESDAY NIGHT THROUGH WEDNESDAY NIGHT...Northeast to east winds
near 10 knots. Bay waters a light chop. Isolated showers.

$$

GMZ032-035-250930-
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-
1020 PM EST Fri Nov 24 2017

.OVERNIGHT...Northwest to north winds 10 to 15 knots, becoming
north and decreasing to 5 to 10 knots. Seas around 1 foot.
Nearshore waters a light to moderate chop, becoming smooth to a
light chop.
.SATURDAY...North winds 5 to 10 knots. Seas 1 foot or less.
Nearshore waters smooth.
.SATURDAY NIGHT...Northeast winds 10 to 15 knots. Seas 1 to 2 feet.
Nearshore waters a light to moderate chop. Isolated showers.
.SUNDAY...Northeast winds 10 to 15 knots. Seas 1 to 2 feet.
Nearshore waters a light to moderate chop. Scattered showers and
isolated thunderstorms.
.SUNDAY NIGHT...Northeast winds 10 to 15 knots. Seas 1 to 2 feet.
Nearshore waters a light to moderate chop. Scattered showers and
isolated thunderstorms.
.MONDAY...Northeast to east winds 10 to 15 knots. Seas 1 foot or
less. Nearshore waters a light to moderate chop. Isolated
showers.
.MONDAY NIGHT...Northeast to east winds near 15 knots. Seas 1 to
2 feet. Nearshore waters a moderate chop. Isolated showers.
.TUESDAY THROUGH WEDNESDAY NIGHT...Northeast to east winds 10 to
15 knots. Seas 1 to 2 feet. Nearshore waters a light to moderate
chop. Isolated showers.

$$

GMZ042>044-250930-
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-
1020 PM EST Fri Nov 24 2017

.OVERNIGHT...Northwest to north winds near 15 knots, becoming
north and decreasing to 5 to 10 knots. Seas 1 to 3 feet,
subsiding to around 1 foot. Nearshore waters a moderate chop.
becoming smooth to a light chop.
.SATURDAY...North to northeast winds 5 to 10 knots. Seas 1 to 2
feet. Nearshore waters smooth to a light chop.
.SATURDAY NIGHT...Northeast winds 10 to 15 knots. Seas 1 to
2 feet. Nearshore waters a light to moderate chop. Isolated
showers.
.SUNDAY...Northeast to east winds 10 to 15 knots. Seas 1 to
2 feet. Nearshore waters a light to moderate chop. Scattered
showers and isolated thunderstorms.
.SUNDAY NIGHT...Northeast winds 10 to 15 knots. Seas 1 to 3 feet.
Nearshore waters a light to moderate chop. Scattered showers and
isolated thunderstorms.
.MONDAY...Northeast to east winds 10 to 15 knots. Seas 1 to
2 feet. Nearshore waters a light to moderate chop. Isolated
showers.
.MONDAY NIGHT...Northeast to east winds 10 to 15 knots. Seas 1 to
3 feet. Nearshore waters a light to moderate chop. Isolated
showers.
.TUESDAY...East winds near 15 knots. Seas 1 to 3 feet. Nearshore
waters a moderate chop. Isolated showers.
.TUESDAY NIGHT THROUGH WEDNESDAY NIGHT...Northeast to east winds
10 to 15 knots. Seas 1 to 2 feet. Nearshore waters a light to
moderate chop. Isolated showers.

$$

GMZ052>055-072>075-250930-
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-
1020 PM EST Fri Nov 24 2017

.OVERNIGHT...Northwest to north winds near 15 knots, becoming
north and decreasing to near 10 knots. Seas 3 to 4 feet,
subsiding to 2 to 3 feet.
.SATURDAY...North to northeast winds 5 to 10 knots. Seas 2 to
3 feet. Isolated showers.
.SATURDAY NIGHT...Northeast winds 10 to 15 knots. Seas 2 to
3 feet. Isolated showers.
.SUNDAY...Northeast to east winds 10 to 15 knots. Seas 2 to
3 feet. Scattered showers and isolated thunderstorms.
.SUNDAY NIGHT...Northeast to east winds near 15 knots. Seas 2 to
4 feet. Scattered showers and isolated thunderstorms.
.MONDAY...Northeast to east winds 10 to 15 knots. Seas 2 to 4
feet. Isolated showers.
.MONDAY NIGHT...Northeast to east winds near 15 knots. Seas 2 to
4 feet. Isolated showers.
.TUESDAY...East winds near 15 knots. Seas 3 to 5 feet. Isolated
showers.
.TUESDAY NIGHT THROUGH WEDNESDAY NIGHT...Northeast to east winds
10 to 15 knots. Seas 2 to 4 feet. Isolated showers.

$$

GMZ033-034-250930-
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-
1020 PM EST Fri Nov 24 2017

.OVERNIGHT...Northwest to north winds 10 to 15 knots, becoming
north and decreasing to 5 to 10 knots. Seas 2 to 4 feet,
subsiding to 1 to 3 feet.
.SATURDAY...Northeast winds 5 to 10 knots. Seas 1 to 3 feet.
.SATURDAY NIGHT...Northeast winds 10 to 15 knots. Seas 2 to
3 feet. Isolated showers.
.SUNDAY...Northeast winds 10 to 15 knots. Seas 2 to 3 feet.
Scattered showers and isolated thunderstorms.
.SUNDAY NIGHT...Northeast winds near 15 knots. Seas 2 to 3 feet.
Scattered showers and isolated thunderstorms.
.MONDAY...Northeast winds 10 to 15 knots. Seas 2 to 3 feet.
Isolated showers.
.MONDAY NIGHT...Northeast to east winds 10 to 15 knots. Seas 2 to
4 feet. Isolated showers.
.TUESDAY...East winds 10 to 15 knots. Seas 1 to 3 feet. Isolated
showers.
.TUESDAY NIGHT THROUGH WEDNESDAY NIGHT...Northeast to east winds
10 to 15 knots. Seas 1 to 3 feet. Isolated showers.

$$

11/DAF


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