Coastal Waters Forecast
Issued by NWS

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FZUS52 KKEY 240230
CWFKEY

Coastal Waters Forecast for the Florida Keys
National Weather Service Key West FL
1030 PM EDT Mon Apr 23 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.

GMZ005-240830-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
1030 PM EDT Mon Apr 23 2018

.SYNOPSIS...An expansive area of high pressure covering the entire
Eastern United States will slide into the western North Atlantic
Ocean over the next several days, as a weak area of low pressure
migrates eastward and across the Southeast United States before
lifting up the Eastern Seaboard next week. Meanwhile, a trough of
low pressure will likely pass through our region late Tuesday
night and early Wednesday.

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.

$$

GMZ031-240830-
Florida Bay including Barnes Sound, Blackwater Sound, and
Buttonwood Sound-
1030 PM EDT Mon Apr 23 2018

.OVERNIGHT...South winds 5 to 10 knots. Bay waters smooth to a
light chop.
.TUESDAY...Southwest winds 5 to 10 knots. Bay waters smooth to a
light chop. Isolated showers.
.TUESDAY NIGHT AND WEDNESDAY...West to northwest winds 5 to 10
knots. Bay waters smooth to a light chop. Scattered showers.
.WEDNESDAY NIGHT...Northwest to north winds 5 to 10 knots. Bay
waters smooth to a light chop.
.THURSDAY...North to northeast 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. Isolated showers.
.FRIDAY...Variable winds near 5 knots. Bay waters smooth.
Isolated showers.
.FRIDAY NIGHT...Southwest winds 5 to 10 knots. Bay waters smooth
to a light chop. Isolated showers.
.SATURDAY...Northwest winds 5 to 10 knots. Bay waters smooth to a
light chop. Isolated showers.
.SATURDAY NIGHT...North winds 5 to 10 knots. Bay waters smooth to
a light chop. Isolated showers.

$$

GMZ032-035-240830-
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-
1030 PM EDT Mon Apr 23 2018

.OVERNIGHT...South to southwest winds 5 to 10 knots. Seas 1 foot
or less. Nearshore waters smooth to a light chop.
.TUESDAY...Southwest to west winds 5 to 10 knots. Seas 1 foot or
less. Nearshore waters smooth to a light chop. Isolated showers.
.TUESDAY NIGHT AND WEDNESDAY...Northwest winds 5 to 10 knots.
Seas 1 to 2 feet. Nearshore waters smooth to a light chop.
Scattered showers.
.WEDNESDAY NIGHT...Northwest to north winds 5 to 10 knots. Seas
1 to 2 feet. Nearshore waters smooth to a light chop.
.THURSDAY...Variable winds near 5 knots. Seas 1 foot or less.
Nearshore waters smooth.
.THURSDAY NIGHT THROUGH FRIDAY NIGHT...Variable winds near 5
knots. Seas 1 foot or less. Nearshore waters smooth. Isolated
showers.
.SATURDAY...Northwest winds 5 to 10 knots. Seas 1 foot or less.
Nearshore waters smooth to a light chop. Isolated showers.
.SATURDAY NIGHT...North winds near 10 knots. Seas 1 to 2 feet.
Nearshore waters a light chop. Isolated showers.

$$

GMZ042>044-240830-
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-
1030 PM EDT Mon Apr 23 2018

.OVERNIGHT...Southeast to south winds near 10 knots, decreasing
to 5 to 10 knots. Seas 1 to 2 feet. Nearshore waters smooth to a
light chop.
.TUESDAY...Southwest to west winds 5 to 10 knots. Seas 1 to
2 feet. Nearshore waters smooth to a light chop. Isolated
showers.
.TUESDAY NIGHT...West to northwest winds 5 to 10 knots. Seas 1 to
2 feet. 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. Isolated showers.
.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. Isolated
showers.
.FRIDAY...North to northeast winds near 5 knots. Seas 1 foot or
less. Nearshore waters smooth. Isolated showers.
.FRIDAY NIGHT...Variable winds 5 to 10 knots. Seas 1 foot or
less. Nearshore waters smooth to a light chop. Isolated showers.
.SATURDAY...Northwest winds 5 to 10 knots. Seas 1 foot or less.
Nearshore waters smooth to a light chop. Isolated showers.
.SATURDAY NIGHT...North winds 5 to 10 knots. Seas 1 foot or less.
Nearshore waters smooth to a light chop. Isolated showers.

$$

GMZ052>055-072>075-240830-
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-
1030 PM EDT Mon Apr 23 2018

.OVERNIGHT...Southeast to south winds near 10 knots. Seas 1 to 3
feet.
.TUESDAY...Southwest to west winds 5 to 10 knots. Seas 1 to
2 feet. Isolated showers.
.TUESDAY NIGHT...West to northwest winds 5 to 10 knots. Seas 1 to
2 feet. Scattered showers.
.WEDNESDAY AND WEDNESDAY NIGHT...Northwest to north winds 5 to 10
knots. Seas 1 to 2 feet. Isolated showers.
.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. Isolated showers.
.FRIDAY...Northeast winds near 5 knots. Seas 1 foot or less.
Isolated showers.
.FRIDAY NIGHT...Variable winds near 5 knots. Seas 1 foot or less.
Isolated showers.
.SATURDAY...Northwest winds 5 to 10 knots. Seas around 1 foot.
Isolated showers.
.SATURDAY NIGHT...North to northeast winds 5 to 10 knots. Seas
1 to 2 feet. Isolated showers.

$$

GMZ033-034-240830-
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-
1030 PM EDT Mon Apr 23 2018

.OVERNIGHT...Variable winds near 5 knots. Seas 1 foot or less.
.TUESDAY...West winds 5 to 10 knots. Seas 1 foot or less.
Isolated showers.
.TUESDAY NIGHT...Northwest winds 5 to 10 knots. Seas 1 to 2 feet.
Scattered showers.
.WEDNESDAY AND WEDNESDAY NIGHT...Northwest winds 5 to 10 knots.
Seas 2 to 3 feet. Isolated showers.
.THURSDAY...North to northeast winds near 5 knots. Seas 1 to 2
feet.
.THURSDAY NIGHT...Northwest winds near 5 knots. Seas 1 foot or
less. Isolated showers.
.FRIDAY AND FRIDAY NIGHT...Variable winds near 5 knots. Seas 1
foot or less. Isolated showers.
.SATURDAY...Northwest to north winds 5 to 10 knots. Seas 1 foot
or less. Isolated showers.
.SATURDAY NIGHT...North to northeast winds 5 to 10 knots. Seas
1 to 2 feet. Isolated showers.

$$



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