Coastal Waters Forecast
Issued by NWS

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FZUS52 KKEY 260823
CWFKEY

Coastal Waters Forecast for the Florida Keys
National Weather Service Key West FL
423 AM EDT Fri Apr 26 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.

GMZ005-261430-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
423 AM EDT Fri Apr 26 2019

.SYNOPSIS...A weak cold front will move southeastward across the
eastern Gulf of Mexico today, reaching the Florida Keys tonight,
then stalling just south of the area on Saturday. A weak pressure
pattern will prevail over the Keys Saturday afternoon through
Sunday as the front dissipates. Building high pressure over the
western Atlantic will result in freshening easterly breezes for
Monday afternoon through midweek.

The Approximate Shoreward Edge of the Gulf Stream as of
April 25...

42 NM South of Dry Tortugas Light...on Loggerhead Key.
30 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
27 NM South of Sand Key Light...off Key West.
26 NM South of Looe Key...off Big Pine Key.
24 NM South of Sombrero Key Light...off Marathon.
17 NM Southeast of Alligator Reef Light...off Islamorada.
12 NM Southeast of Molasses Reef Light...off Key Largo.
10 NM East of Carysfort Reef Light...off Ocean Reef.

Gulf Stream Information Courtesy of the Naval Oceanographic Office.

$$

GMZ031-261430-
Florida Bay including Barnes Sound, Blackwater Sound, and
Buttonwood Sound-
423 AM EDT Fri Apr 26 2019

...SMALL CRAFT SHOULD EXERCISE CAUTION FOR INCREASING WINDS...

.TODAY...South to southwest winds 10 to 15 knots, becoming
southwest to west and increasing to 15 to 20 knots in the
afternoon. Bay waters a light to moderate chop, becoming choppy.
Isolated showers in the afternoon.
.TONIGHT...West to northwest winds near 15 knots early,
decreasing to 10 to 15 knots during the evening, then becoming
northwest to north late. Bay waters a moderate chop, becoming a
light to moderate chop. Scattered showers and isolated
thunderstorms.
.SATURDAY...North to northeast winds near 10 knots, becoming east
to southeast 5 to 10 knots in the afternoon. Bay waters a light
chop, becoming smooth to a light chop. Isolated showers and
thunderstorms.
.SATURDAY NIGHT...East winds 5 to 10 knots. Bay waters smooth to
a light chop. Scattered showers and isolated thunderstorms.
.SUNDAY...East to southeast winds near 10 knots. Bay waters a
light chop. Scattered showers and isolated thunderstorms.
.SUNDAY NIGHT...East winds near 10 knots. Bay waters a light
chop. Scattered showers and isolated thunderstorms.
.MONDAY...East winds 10 to 15 knots. Bay waters a light to
moderate chop. Scattered showers and isolated thunderstorms.
.MONDAY NIGHT...East winds near 15 knots. Bay waters a moderate
chop. Scattered showers.
.TUESDAY AND TUESDAY NIGHT...East winds near 15 knots. Bay waters
a moderate chop. Isolated showers.

$$

GMZ032-035-261430-
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-
423 AM EDT Fri Apr 26 2019

.TODAY...South to southwest winds 10 to 15 knots, becoming
southwest to west in the afternoon. Seas 1 to 2 feet. Nearshore
waters a light to moderate chop. Isolated showers in the
afternoon.
.TONIGHT...West to northwest winds 10 to 15 knots, becoming
northwest to north late. Seas 1 to 2 feet. Nearshore waters a
light to moderate chop. Scattered showers and isolated
thunderstorms.
.SATURDAY...North to northeast winds near 10 knots, becoming east
to southeast 5 to 10 knots in the afternoon. Seas 1 to 2 feet,
subsiding to around 1 foot. Nearshore waters a light chop,
becoming smooth to a light chop. Isolated showers and
thunderstorms.
.SATURDAY NIGHT...East winds 5 to 10 knots. Seas around 1 foot.
Nearshore waters smooth to a light chop. Scattered showers and
isolated thunderstorms.
.SUNDAY...East to southeast winds near 10 knots. Seas 1 to
2 feet. Nearshore waters a light chop. Scattered showers and
isolated thunderstorms.
.SUNDAY NIGHT...East winds near 10 knots. Seas 1 to 2 feet.
Nearshore waters a light chop. Scattered showers and isolated
thunderstorms.
.MONDAY...East to southeast winds 10 to 15 knots. Seas 1 to
2 feet. Nearshore waters a light to moderate chop. Scattered
showers and isolated thunderstorms.
.MONDAY NIGHT...East winds near 15 knots. Seas building to 1 to 3
feet. Nearshore waters a moderate chop. Scattered showers.
.TUESDAY AND TUESDAY NIGHT...East winds near 15 knots. Seas 1 to
3 feet. Nearshore waters a moderate chop. Isolated showers.

$$

GMZ042-261430-
Hawk Channel from Ocean Reef to Craig Key out to the reef-
423 AM EDT Fri Apr 26 2019

...SMALL CRAFT SHOULD EXERCISE CAUTION FOR INCREASING WINDS...

.TODAY...South to southwest winds 10 to 15 knots, becoming
southwest to west and increasing to 15 to 20 knots in the
afternoon. Seas 1 to 2 feet, building to 2 to 3 feet. Nearshore
waters a light to moderate chop, becoming choppy. Isolated
showers in the afternoon.
.TONIGHT...West to northwest winds near 15 knots early,
decreasing to 10 to 15 knots during the evening, then becoming
northwest to north late. Seas 1 to 2 feet. Nearshore waters a
moderate chop, becoming a light to moderate chop. Scattered
showers and isolated thunderstorms.
.SATURDAY...North to northeast winds near 10 knots, becoming east
to southeast 5 to 10 knots in the afternoon. Seas 1 to 2 feet.
Nearshore waters a light chop, becoming smooth to a light chop.
Isolated showers and thunderstorms.
.SATURDAY NIGHT...East winds near 10 knots. Seas 1 to 2 feet.
Nearshore waters a light chop. Scattered showers and isolated
thunderstorms.
.SUNDAY...East to southeast winds near 10 knots. Seas 1 to 2
feet. Nearshore waters a light chop. Scattered showers and
isolated thunderstorms.
.SUNDAY NIGHT...East 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.
.MONDAY...East winds 10 to 15 knots. Seas 1 to 2 feet. Nearshore
waters a light to moderate chop. Scattered showers and isolated
thunderstorms.
.MONDAY NIGHT...East winds near 15 knots. Seas 2 to 3 feet.
Nearshore waters a moderate chop. Scattered showers.
.TUESDAY AND TUESDAY NIGHT...East winds 15 to 20 knots. Seas 2 to
4 feet. Nearshore waters choppy. Isolated showers.

$$

GMZ043-044-261430-
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-
423 AM EDT Fri Apr 26 2019

.TODAY...South to southwest winds 10 to 15 knots, becoming
southwest to west in the afternoon. Seas 1 to 2 feet. Nearshore
waters a light to moderate chop. Isolated showers in the
afternoon.
.TONIGHT...West to northwest winds 10 to 15 knots, becoming
northwest to north late. Seas 1 to 2 feet. Nearshore waters a
light to moderate chop. Scattered showers and isolated
thunderstorms.
.SATURDAY...North to northeast winds near 10 knots, becoming east
to southeast 5 to 10 knots in the afternoon. Seas 1 to 2 feet.
Nearshore waters a light chop, becoming smooth to a light chop.
Isolated showers and thunderstorms.
.SATURDAY NIGHT...East winds near 10 knots. Seas 1 to 2 feet.
Nearshore waters a light chop. Scattered showers and isolated
thunderstorms.
.SUNDAY...East to southeast winds near 10 knots. Seas 1 to 2
feet. Nearshore waters a light chop. Scattered showers and
isolated thunderstorms.
.SUNDAY NIGHT...East 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.
.MONDAY...East winds 10 to 15 knots. Seas 1 to 2 feet. Nearshore
waters a light to moderate chop. Scattered showers and isolated
thunderstorms.
.MONDAY NIGHT...East winds near 15 knots. Seas 2 to 3 feet.
Nearshore waters a moderate chop. Scattered showers.
.TUESDAY AND TUESDAY NIGHT...East winds 15 to 20 knots. Seas 2 to
4 feet. Nearshore waters choppy. Isolated showers.

$$

GMZ052-072-261430-
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-
423 AM EDT Fri Apr 26 2019

...SMALL CRAFT SHOULD EXERCISE CAUTION FOR INCREASING WINDS...

.TODAY...South to southwest winds 10 to 15 knots, becoming
southwest to west and increasing to 15 to 20 knots in the
afternoon. Seas 2 to 3 feet. Isolated showers.
.TONIGHT...West to northwest winds near 15 knots early,
decreasing to 10 to 15 knots during the evening, then becoming
northwest to north late. Seas around 2 feet. Scattered showers
and isolated thunderstorms.
.SATURDAY...North to northeast winds near 10 knots, becoming east
5 to 10 knots in the afternoon. Seas 1 to 3 feet. Isolated
showers and thunderstorms.
.SATURDAY NIGHT...East winds near 10 knots. Seas 2 to 3 feet.
Scattered showers and isolated thunderstorms.
.SUNDAY...East to southeast winds near 10 knots. Seas 2 to 3
feet. Scattered showers and isolated thunderstorms.
.SUNDAY NIGHT...East winds increasing to 10 to 15 knots. Seas 2
to 3 feet. Scattered showers and isolated thunderstorms.
.MONDAY...East winds increasing to near 15 knots. Seas building to
3 to 4 feet. Scattered showers and isolated thunderstorms.
.MONDAY NIGHT...East winds 15 to 20 knots. Seas building to 3 to
5 feet. Scattered showers.
.TUESDAY AND TUESDAY NIGHT...East winds 15 to 20 knots. Seas 4 to
6 feet. Isolated showers.

$$

GMZ053>055-073>075-261430-
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-
423 AM EDT Fri Apr 26 2019

.TODAY...South to southwest winds 10 to 15 knots, becoming
southwest to west in the afternoon. Seas 2 to 3 feet. Isolated
showers.
.TONIGHT...West to northwest winds 10 to 15 knots, becoming
northwest to north late. Seas around 2 feet. Scattered showers
and isolated thunderstorms.
.SATURDAY...North to northeast winds near 10 knots, becoming east
5 to 10 knots in the afternoon. Seas 1 to 3 feet. Isolated
showers and thunderstorms.
.SATURDAY NIGHT...East winds near 10 knots. Seas 2 to 3 feet.
Scattered showers and isolated thunderstorms.
.SUNDAY...East to southeast winds near 10 knots. Seas 2 to 3
feet. Scattered showers and isolated thunderstorms.
.SUNDAY NIGHT...East winds increasing to 10 to 15 knots. Seas 2
to 3 feet. Scattered showers and isolated thunderstorms.
.MONDAY...East winds increasing to near 15 knots. Seas building to
3 to 4 feet. Scattered showers and isolated thunderstorms.
.MONDAY NIGHT...East winds 15 to 20 knots. Seas building to 3 to
5 feet. Scattered showers.
.TUESDAY AND TUESDAY NIGHT...East winds 15 to 20 knots. Seas 4 to
6 feet. Isolated showers.

$$

GMZ033-034-261430-
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-
423 AM EDT Fri Apr 26 2019

.TODAY...South to southwest winds 10 to 15 knots, becoming
southwest to west and increasing to near 15 knots in the
afternoon. Seas 1 to 2 feet, building to 2 to 3 feet. Isolated
showers in the afternoon.
.TONIGHT...West to northwest winds near 15 knots, becoming
northwest to north. Seas 2 to 3 feet. Scattered showers and
isolated thunderstorms in the evening, then isolated showers after
midnight.
.SATURDAY...North to northeast winds 10 to 15 knots, becoming
east to southeast and decreasing to near 5 knots during the
afternoon. Seas 2 to 3 feet. Isolated showers.
.SATURDAY NIGHT...Variable winds near 5 knots, becoming east 5 to
10 knots after midnight. Seas 1 to 3 feet. Isolated showers and
thunderstorms.
.SUNDAY...East to southeast winds near 10 knots. Seas 1 to 2
feet. Isolated showers and thunderstorms.
.SUNDAY NIGHT...East winds near 10 knots. Seas 1 to 2 feet.
Isolated showers and thunderstorms.
.MONDAY...East to southeast winds 10 to 15 knots. Seas 1 to
2 feet. Isolated showers and thunderstorms.
.MONDAY NIGHT...East winds 15 to 20 knots. Seas building to
2 to 4 feet. Isolated showers.
.TUESDAY AND TUESDAY NIGHT...East to southeast winds 15 to 20
knots. Seas 2 to 4 feet. Isolated showers.

$$



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