Coastal Waters Forecast
Issued by NWS

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FZUS52 KKEY 261452 AAA
CWFKEY

Coastal Waters Forecast for the Florida Keys...UPDATED
National Weather Service Key West FL
1052 AM EDT Sat May 26 2018

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.

GMZ005-262030-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
1052 AM EDT Sat May 26 2018

.SYNOPSIS...Subtropical Storm Alberto will move northward into and
through the southeastern Gulf of Mexico this afternoon and
tonight. A Tropical Storm Warning is in effect for the coastal
waters of western Florida Straits and offshore Gulf of Mexico.
Subtropical Storm Alberto will continue to progress northward
through the eastern Gulf of Mexico Sunday through Monday, before
reaching the northern Gulf coast Monday night.

The Approximate Shoreward Edge of the Gulf Stream current, as of
May 24th, 2018.

19 NM South of Dry Tortugas Light...on Loggerhead Key.
 7 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
 6 NM South of Sand Key Light...off Key West.
 2 NM South of Looe Key...off Big Pine Key.
 1 NM South of Sombrero Key Light...off Marathon.
 2 NM Southeast of Alligator Reef Light...off Islamorada.
 Less than 1 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.

$$

GMZ031-262030-
Florida Bay including Barnes Sound, Blackwater Sound, and
Buttonwood Sound-
1052 AM EDT Sat May 26 2018

...SMALL CRAFT ADVISORY IN EFFECT...

.THIS AFTERNOON...Southeast winds near 20 knots, increasing to
near 25 knots. Bay waters rough, becoming extremely rough. Showers
and isolated thunderstorms.
.TONIGHT...Southeast to south winds near 25 knots. Bay waters
extremely rough. Showers and scattered thunderstorms.
.SUNDAY...Southeast to south winds 20 to 25 knots. Bay waters
very rough. Numerous showers and isolated thunderstorms.
.SUNDAY NIGHT...South winds near 20 knots. Bay waters rough.
Numerous showers and isolated thunderstorms.
.MONDAY AND MONDAY NIGHT...Southeast to south winds 15 to 20
knots. Bay waters choppy. Scattered showers and isolated
thunderstorms.
.MONDAY NIGHT...Southeast to south winds near 15 knots. Bay waters
a moderate chop. Scattered showers and isolated thunderstorms.
.TUESDAY...Southeast to south winds 10 to 15 knots. Bay waters a
light to moderate chop. Scattered showers and isolated
thunderstorms.
.TUESDAY NIGHT THROUGH WEDNESDAY NIGHT...Southeast winds near 10
knots. Bay waters a light chop. Scattered showers and isolated
thunderstorms.

$$

GMZ032-035-262030-
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-
1052 AM EDT Sat May 26 2018

...SMALL CRAFT ADVISORY IN EFFECT...

.THIS AFTERNOON...Southeast winds 20 to 25 knots, increasing to 25
to 30 knots. Seas 3 to 4 feet, building to 4 to 5 feet. Nearshore
waters very rough, becoming extremely rough. Showers and isolated
thunderstorms.
.TONIGHT...Southeast to south winds 25 to 30 knots. Seas 4 to 5
feet. Nearshore waters extremely rough. Showers and scattered
thunderstorms.
.SUNDAY...Southeast to south winds near 25 knots, decreasing to 20
to 25 knots. Seas 4 to 5 feet, subsiding to 3 to 4 feet. Nearshore
waters extremely rough, becoming very rough. Numerous showers and
isolated thunderstorms.
.SUNDAY NIGHT...South winds near 20 knots. Seas 2 to 4 feet.
Nearshore waters rough. Numerous showers and isolated
thunderstorms.
.MONDAY AND MONDAY NIGHT...Southeast to south winds near 20 knots.
Seas 2 to 4 feet. Nearshore waters rough. Scattered showers and
isolated thunderstorms.
.MONDAY NIGHT...Southeast to south winds 15 to 20 knots. Seas 2 to
3 feet. Nearshore waters choppy. Scattered showers and isolated
thunderstorms.
.TUESDAY...Southeast to south winds near 15 knots. Seas around 2
feet. Nearshore waters a moderate chop. Scattered showers and
isolated thunderstorms.
.TUESDAY NIGHT THROUGH WEDNESDAY NIGHT...Southeast winds 10 to 15
knots. Seas 1 to 2 feet. Nearshore waters a light to moderate
chop. Scattered showers and isolated thunderstorms.

$$

GMZ042>044-262030-
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-
1052 AM EDT Sat May 26 2018

...SMALL CRAFT ADVISORY IN EFFECT...

.THIS AFTERNOON...Southeast winds 20 to 25 knots, increasing to 25
to 30 knots. Seas 4 to 6 feet, building to 6 to 8 feet. Nearshore
waters very rough, becoming extremely rough. Showers and isolated
thunderstorms.
.TONIGHT...Southeast to south winds 25 to 30 knots. Seas 6 to 8
feet. Nearshore waters extremely rough. Showers and scattered
thunderstorms.
.SUNDAY...Southeast to south winds near 25 knots, decreasing to 20
to 25 knots. Seas 5 to 7 feet, subsiding to 4 to 6 feet. Nearshore
waters extremely rough, becoming very rough. Numerous showers and
isolated thunderstorms.
.SUNDAY NIGHT...South winds near 20 knots. Seas 3 to 5 feet.
Nearshore waters rough. Numerous showers and isolated
thunderstorms.
.MONDAY AND MONDAY NIGHT...Southeast to south winds near 20 knots.
Seas 3 to 5 feet. Nearshore waters rough. Scattered showers and
isolated thunderstorms.
.MONDAY NIGHT...Southeast to south winds 15 to 20 knots. Seas 2 to
4 feet. Nearshore waters choppy. Scattered showers and isolated
thunderstorms.
.TUESDAY...Southeast to south winds near 15 knots. Seas 2 to 3
feet. Nearshore waters a moderate chop. Scattered showers and
isolated thunderstorms.
.TUESDAY NIGHT THROUGH WEDNESDAY NIGHT...Southeast winds 10 to 15
knots. Seas around 2 feet. Nearshore waters a light to moderate
chop. Scattered showers and isolated thunderstorms.

$$

GMZ052>054-072>074-262030-
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 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-
1052 AM EDT Sat May 26 2018

...SMALL CRAFT ADVISORY IN EFFECT...

.THIS AFTERNOON...Southeast winds 20 to 25 knots, increasing to 25
to 30 knots. Seas 6 to 8 feet, building to 8 to 10 feet. Showers
and isolated thunderstorms.
.TONIGHT...Southeast to south winds 25 to 30 knots. Seas 9 to 11
feet. Nearshore waters extremely rough. Showers and scattered
thunderstorms.
.SUNDAY...Southeast to south winds near 25 knots, decreasing to 20
to 25 knots. Seas 8 to 10 feet, subsiding to 6 to 8 feet.
Nearshore waters extremely rough, becoming very rough. Numerous
showers and isolated thunderstorms.
.SUNDAY NIGHT...South winds near 20 knots. Seas 5 to 7 feet.
Numerous showers and isolated thunderstorms.
.MONDAY AND MONDAY NIGHT...Southeast to south winds near 20 knots.
Seas 5 to 7 feet. Scattered showers and isolated thunderstorms.
.MONDAY NIGHT...Southeast to south winds 15 to 20 knots. Seas 4 to
6 feet. Scattered showers and isolated thunderstorms.
.TUESDAY...Southeast to south winds near 15 knots. Seas 3 to 5
feet. Scattered showers and isolated thunderstorms.
.TUESDAY NIGHT THROUGH WEDNESDAY NIGHT...Southeast winds 10 to 15
knots. Seas 2 to 4 feet. Scattered showers and isolated
thunderstorms.

$$

GMZ055-075-262030-
Straits of Florida from Halfmoon Shoal to 20 NM west of Dry
Tortugas out 20 NM-
Straits of Florida from Halfmoon Shoal to 20 NM west of Dry
Tortugas 20 to 60 NM out-
1052 AM EDT Sat May 26 2018

...TROPICAL STORM WARNING IN EFFECT...

.THIS AFTERNOON...Tropical storm conditions possible. Southeast
winds near 25 knots, increasing to 30 to 35 knots. Seas 7 to 9
feet, building to 10 to 13 feet. Showers and isolated
thunderstorms.
.TONIGHT...Tropical storm conditions expected. Southeast to south
winds 30 to 35 knots, with gusts near 45 knots. Seas 10 to 14
feet. Showers and scattered thunderstorms.
.SUNDAY...Southeast to south winds near 30 knots, decreasing to
near 25 knots. Seas 10 to 14 feet, subsiding to 7 to 9 feet.
Numerous showers and isolated thunderstorms.
.SUNDAY NIGHT...South winds 20 to 25 knots. Seas 6 to 8 feet.
Numerous showers and isolated thunderstorms.
.MONDAY AND MONDAY NIGHT...Southeast to south winds near 20 knots.
Seas 5 to 7 feet. Scattered showers and isolated thunderstorms.
.MONDAY NIGHT...Southeast to south winds 15 to 20 knots. Seas 4 to
6 feet. Scattered showers and isolated thunderstorms.
.TUESDAY...Southeast to south winds near 15 knots. Seas 3 to 5
feet. Scattered showers and isolated thunderstorms.
.TUESDAY NIGHT THROUGH WEDNESDAY NIGHT...Southeast winds 10 to 15
knots. Seas 2 to 4 feet. Scattered showers and isolated
thunderstorms.

$$

GMZ033-034-262030-
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-
1052 AM EDT Sat May 26 2018

...TROPICAL STORM WARNING IN EFFECT...

.THIS AFTERNOON...Tropical storm conditions possible. Southeast
winds near 25 knots, increasing to 30 to 35 knots. Seas 7 to 9
feet, building to 10 to 13 feet. Showers and isolated
thunderstorms.
.TONIGHT...Tropical storm conditions expected. Southeast to south
winds 30 to 35 knots, with gusts near 45 knots. Seas 10 to 14
feet. Showers and scattered thunderstorms.
.SUNDAY...Southeast to south winds near 30 knots, decreasing to
near 25 knots. Seas 10 to 14 feet, subsiding to 7 to 9 feet.
Numerous showers and isolated thunderstorms.
.SUNDAY NIGHT...South winds 20 to 25 knots. Seas 6 to 8 feet.
Numerous showers and isolated thunderstorms.
.MONDAY AND MONDAY NIGHT...Southeast to south winds near 20 knots.
Seas 5 to 7 feet. Scattered showers and isolated thunderstorms.
.MONDAY NIGHT...Southeast to south winds 15 to 20 knots. Seas 4 to
6 feet. Scattered showers and isolated thunderstorms.
.TUESDAY...Southeast to south winds near 15 knots. Seas 3 to 5
feet. Scattered showers and isolated thunderstorms.
.TUESDAY NIGHT THROUGH WEDNESDAY NIGHT...Southeast winds 10 to 15
knots. Seas 2 to 4 feet. Scattered showers and isolated
thunderstorms.

$$
BS


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