Coastal Waters Forecast
Issued by NWS

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FZUS52 KKEY 242039
CWFKEY

Coastal Waters Forecast for the Florida Keys
National Weather Service Key West FL
439 PM 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.

GMZ005-250230-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
439 PM 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.

$$

GMZ031-250230-
Florida Bay including Barnes Sound, Blackwater Sound, and
Buttonwood Sound-
439 PM EDT Tue Apr 24 2018

.TONIGHT...Southwest to west winds near 10 knots, becoming
northwest. Bay waters a light chop. Scattered showers.
.WEDNESDAY...Northwest winds near 10 knots, becoming west 5 to 10
knots. Bay waters smooth to a light chop. Scattered showers in
the morning.
.WEDNESDAY NIGHT...Northwest winds 5 to 10 knots. Bay waters
smooth to a light chop.
.THURSDAY...North winds 5 to 10 knots, becoming west in the
afternoon. Bay waters smooth to a light chop.
.THURSDAY NIGHT...Southwest winds near 5 knots. Bay waters
smooth.
.FRIDAY...Southwest winds 5 to 10 knots. Bay waters smooth to a
light chop. Scattered showers.
.FRIDAY NIGHT...Southwest winds 5 to 10 knots. Bay waters smooth
to a light chop. Scattered showers.
.SATURDAY...West winds near 10 knots. Bay waters a light chop.
Scattered showers.
.SATURDAY NIGHT...Northwest winds 5 to 10 knots. Bay waters
smooth to a light chop. Scattered showers.
.SUNDAY...North winds 5 to 10 knots, becoming east in the
afternoon. Bay waters smooth to a light chop. Isolated showers.
.SUNDAY NIGHT...East winds 10 to 15 knots. Bay waters a light to
moderate chop. Isolated showers.

$$

GMZ032-035-250230-
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-
439 PM EDT Tue Apr 24 2018

.TONIGHT...Southwest to west near 10 knots, becoming northeast.
Seas 1 foot or less, building to 1 to 2 feet. Nearshore waters a
light chop. Scattered showers.
.WEDNESDAY...North winds near 10 knots, becoming west to northwest
5 to 10 knots. Seas 1 to 2 feet. Nearshore waters smooth to a
light chop. Scattered showers in the morning.
.WEDNESDAY NIGHT...Northwest to north winds 5 to 10 knots. Seas
1 foot or less. Nearshore waters smooth to a light chop.
.THURSDAY...North to northeast winds near 5 knots. Seas 1 foot or
less. Nearshore waters smooth.
.THURSDAY NIGHT...Southwest winds near 5 knots. Seas 1 foot or
less. Nearshore waters smooth.
.FRIDAY...Southwest winds 5 to 10 knots. Seas 1 foot or less.
Nearshore waters smooth to a light chop. Scattered showers.
.FRIDAY NIGHT...Southwest winds 5 to 10 knots. Seas 1 foot or
less. Nearshore waters smooth to a light chop. Scattered showers.
.SATURDAY...West to northwest winds near 10 knots. Seas 1 to 2
feet. Nearshore waters a light chop. Scattered showers.
.SATURDAY NIGHT...Northwest to north winds 5 to 10 knots. Seas
1 to 2 feet. Nearshore waters smooth to a light chop. Scattered
showers.
.SUNDAY...Northeast winds 5 to 10 knots. Seas decreasing to
around 1 foot. Nearshore waters smooth to a light chop. Isolated
showers.
.SUNDAY NIGHT...East winds 10 to 15 knots. Seas around 1 foot.
Nearshore waters a light to moderate chop. Isolated showers.

$$

GMZ042>044-250230-
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-
439 PM EDT Tue Apr 24 2018

.TONIGHT...Southwest winds near 10 knots, becoming northwest.
Seas around 1 foot, building to 1 to 2 feet. Nearshore waters a
light chop. Scattered showers.
.WEDNESDAY...Northwest to north winds near 10 knots, becoming west
to northwest 5 to 10 knots. Seas 1 to 2 feet. Nearshore waters
smooth to a light chop. Scattered showers in the morning.
.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...Northeast winds near 5 knots. Seas 1 foot or
less. Nearshore waters smooth.
.FRIDAY...Southwest to west winds 5 to 10 knots. Seas 1 foot or
less. Nearshore waters smooth to a light chop. Scattered showers.
.FRIDAY NIGHT...Southwest winds 5 to 10 knots. Seas 1 foot or
less. Nearshore waters smooth to a light chop. Scattered showers.
.SATURDAY...West to northwest winds near 10 knots. Seas 1 to
2 feet. Nearshore waters a light chop. Scattered showers.
.SATURDAY NIGHT...Northwest to north winds 5 to 10 knots. Seas
1 to 2 feet. Nearshore waters smooth to a light chop. Scattered
showers.
.SUNDAY...Northeast winds 5 to 10 knots. Seas 1 to 2 feet.
Nearshore waters smooth to a light chop. Isolated showers.
.SUNDAY NIGHT...Northeast to east winds 10 to 15 knots. Seas 1 to
3 feet. Nearshore waters a light to moderate chop. Isolated
showers.

$$

GMZ052>055-072>075-250230-
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-
439 PM EDT Tue Apr 24 2018

.TONIGHT...Southwest winds near 10 knots, becoming northwest.
Seas 1 to 2 feet. Scattered showers.
.WEDNESDAY...Northwest to north winds near 10 knots, becoming west
to northwest 5 to 10 knots. Seas 1 to 2 feet. Scattered showers
in the morning.
.WEDNESDAY NIGHT...North winds 5 to 10 knots. Seas 1 to 2 feet.
.THURSDAY...Northeast to east winds 5 to 10 knots. Seas 1 to
2 feet.
.THURSDAY NIGHT...Southeast winds near 5 knots. Seas 1 foot or
less.
.FRIDAY...Southwest winds 5 to 10 knots. Seas around 1 foot.
Scattered showers.
.FRIDAY NIGHT...Southwest winds 5 to 10 knots. Seas around 1 foot.
Scattered showers.
.SATURDAY...West winds 10 to 15 knots. Seas 1 to 2 feet.
Scattered showers.
.SATURDAY NIGHT...Northwest to north winds 10 to 15 knots. Seas
1 to 3 feet. Scattered showers.
.SUNDAY...Northeast winds near 10 knots. Seas 1 to 3 feet.
Isolated showers.
.SUNDAY NIGHT...Northeast to east winds 10 to 15 knots. Seas 2 to
4 feet. Isolated showers.

$$

GMZ033-034-250230-
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-
439 PM EDT Tue Apr 24 2018

.TONIGHT...West winds near 10 knots, becoming northwest. Seas
around 1 foot, building to 2 to 3 feet. Winds and seas higher near
scattered showers and isolated thunderstorms.
.WEDNESDAY...Northwest to north winds near 10 knots, decreasing to
5 to 10 knots. Seas 2 to 3 feet. Scattered showers in the
morning.
.WEDNESDAY NIGHT...North winds 5 to 10 knots. Seas 1 to 3 feet.
.THURSDAY...North to northeast winds near 5 knots. Seas 1 to 2
feet.
.THURSDAY NIGHT...Southwest winds near 5 knots. Seas 1 foot or
less.
.FRIDAY...Southwest to west winds 5 to 10 knots. Seas 1 to
2 feet. Scattered showers.
.FRIDAY NIGHT...Southwest to west winds 5 to 10 knots. Seas 1 to
2 feet. Scattered showers.
.SATURDAY...Northwest winds near 10 knots. Seas 1 to 3 feet.
Scattered showers.
.SATURDAY NIGHT...Northwest to north winds near 10 knots. Seas
2 to 3 feet. Scattered showers.
.SUNDAY...North winds 5 to 10 knots. Seas 1 to 3 feet. Isolated
showers.
.SUNDAY NIGHT...Northwest to north winds near 5 knots becoming
east 10 to 15 knots. Seas 1 to 3 feet. Isolated showers.

$$

Devanas


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