Coastal Waters Forecast
Issued by NWS

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FZUS52 KKEY 240831
CWFKEY

Coastal Waters Forecast for the Florida Keys
National Weather Service Key West FL
431 AM EDT Tue Apr 24 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.

GMZ005-241445-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
431 AM EDT Tue Apr 24 2018

.SYNOPSIS...A low pressure system will slowly intensify as it
moves up the Southeast United States and Mid Atlantic coast,
pulling an associated trough through our area late tonight and
early Wednesday morning. Thereafter, a weak pressure pattern will
prevail for the balance of this week and into the weekend.

The Approximate Shoreward Edge of the Gulf Stream as of
April 21, 2018...

17 NM South of Dry Tortugas Light...on Loggerhead Key.
16 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
21 NM South of Sand Key Light...off Key West.
32 NM South of Looe Key...off Big Pine Key.
36 NM South of Sombrero Key Light...off Marathon.
18 NM Southeast of Alligator Reef Light...off Islamorada.
11 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.

$$

GMZ031-241445-
Florida Bay including Barnes Sound, Blackwater Sound, and
Buttonwood Sound-
431 AM EDT Tue Apr 24 2018

.TODAY...Mostly southwest winds 5 to 10 knots, increasing to near
10 mph. Bay waters becoming a light chop.
.TONIGHT...West to northwest winds near 10 knots. Bay waters a
light chop. Scattered showers.
.WEDNESDAY...West to northwest winds near 10 knots. Bay waters
smooth to a light chop. Scattered showers early.
.WEDNESDAY NIGHT...Northwest to north winds near 10 knots. Bay
waters a light chop.
.THURSDAY...West to northwest winds 5 to 10 knots. Bay waters
smooth to a light chop.
.THURSDAY NIGHT...Northwest winds 5 to 10 knots. Bay waters
smooth to a light chop.
.FRIDAY...Variable winds near 5 knots. Bay waters smooth.
Scattered showers.
.FRIDAY NIGHT...Southwest winds 5 to 10 knots. Bay waters smooth
to a light chop. Scattered showers.
.SATURDAY AND SATURDAY NIGHT...Variable winds 5 to 10 knots. Bay
waters smooth to a light chop. Scattered showers.

$$

GMZ032-035-241445-
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-
431 AM EDT Tue Apr 24 2018

.TODAY...South to southwest winds near 5 knots, becoming southwest
to west 5 to 10 knots. Seas 1 foot or less. Nearshore waters
smooth to a light chop.
.TONIGHT...West to northwest winds 5 to 10 knots. Seas 1 foot or
less. Nearshore waters smooth to a light chop. Scattered showers.
.WEDNESDAY...Northwest to north winds 5 to 10 knots. Seas 1 foot
or less. Scattered showers early.
.WEDNESDAY NIGHT...Northwest winds 5 to 10 knots. Seas 1 foot or
less. Nearshore waters smooth to a light chop.
.THURSDAY...Variable winds near 5 knots. Seas 1 foot or less.
Nearshore waters smooth.
.THURSDAY NIGHT...West to northwest winds near 5 knots. Seas 1
foot or less.
.FRIDAY AND FRIDAY NIGHT...Variable winds near 5 knots. Seas 1
foot or less. Nearshore waters smooth. Scattered showers.
.SATURDAY AND SATURDAY NIGHT...North winds 5 to 10 knots. Seas 1
foot or less. Nearshore waters smooth to a light chop. Scattered
showers.

$$

GMZ042>044-241445-
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-
431 AM EDT Tue Apr 24 2018

.TODAY...South to southwest winds 5 to 10 knots, becoming
southwest near 10 knots. Seas around 1 foot. Nearshore waters
becoming a light chop.
.TONIGHT...West to northwest winds 5 to 10 knots. Seas around 1
foot. Nearshore waters smooth to a light chop. Scattered showers.
.WEDNESDAY...Northwest winds 5 to 10 knots. Seas around 1 foot.
Nearshore waters smooth to a light chop. Scattered showers early.
.WEDNESDAY NIGHT...Northwest to north winds 5 to 10 knots. Seas
1 to 2 feet. Nearshore waters smooth to a light chop.
.THURSDAY...North to northeast winds 5 to 10 knots. Seas 1 foot
or less. Nearshore waters smooth to a light chop.
.THURSDAY NIGHT...Northwest to north winds 5 to 10 knots. Seas
1 foot or less. Nearshore waters smooth to a light chop.
.FRIDAY...North to northeast winds near 5 knots. Seas 1 foot or
less. Nearshore waters smooth. Scattered showers.
.FRIDAY NIGHT...Variable winds 5 to 10 knots. Seas 1 foot or
less. Nearshore waters smooth to a light chop. Scattered showers.
.SATURDAY AND SATURDAY NIGHT...North winds 5 to 10 knots. Seas 1
foot or less. Nearshore waters smooth to a light chop. Scattered
showers.

$$

GMZ052>055-072>075-241445-
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-
431 AM EDT Tue Apr 24 2018

.TODAY...South to southwest winds 5 to 10 knots, becoming southwest
to west. Seas 1 to 2 feet.
.TONIGHT...West to northwest winds 5 to 10 knots. Seas 1 to 2
feet. Scattered showers.
.WEDNESDAY...Northwest to north winds 5 to 10 knots. Seas 1 to 2
feet. Scattered showers early.
.WEDNESDAY NIGHT...North to northeast winds 5 to 10 knots. Seas 1
to 2 feet.
.THURSDAY...Northeast winds 5 to 10 knots. Seas 1 to 2 feet.
.THURSDAY NIGHT...North to northeast winds near 5 knots. Seas
1 to 2 feet.
.FRIDAY...Northeast winds 5 to 10 knots. Seas 1 to 2 feet.
Scattered showers.
.FRIDAY NIGHT...North winds 5 to 10 knots. Seas 1 to 2 feet.
Scattered showers.
.SATURDAY AND SATURDAY NIGHT...North winds near 10 knots. Seas 1
to 3 feet. Scattered showers.

$$

GMZ033-034-241445-
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-
431 AM EDT Tue Apr 24 2018

.TODAY...Variable winds near 5 knots early, becoming west and
increasing to near 10 knots. Seas around 1 foot.
.TONIGHT...Northwest winds near 10 knots. Seas 1 to 2 feet.
Scattered showers.
.WEDNESDAY...Northwest winds 5 to 10 knots. Seas 2 to 3 feet.
Isolated showers early.
.WEDNESDAY NIGHT...Northwest winds 5 to 10 knots. Seas 1 to 2
feet.
.THURSDAY...Variable winds near 5 knots. Seas 1 to 2 feet.
.THURSDAY NIGHT...Northwest winds near 5 knots. Seas 1 foot or
less.
.FRIDAY AND FRIDAY NIGHT...Variable winds 5 to 10 knots. Seas 1
to 2 feet. Scattered showers.
.SATURDAY...North winds near 10 knots. Seas 1 to 2 feet.
Scattered showers.
.SATURDAY NIGHT...Northwest to north near 10 knots. Seas 1 to 2
feet. Scattered showers.

$$


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