Coastal Waters Forecast
Issued by NWS

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28
000
FZUS52 KKEY 231508
CWFKEY

Coastal Waters Forecast for the Florida Keys
National Weather Service Key West FL
1008 AM EST Thu Nov 23 2017

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.

GMZ005-232130-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
1008 AM EST Thu Nov 23 2017

.SYNOPSIS...An area of low pressure over the northeastern Gulf of
Mexico will advance toward the northwest coast of Florida this
afternoon. A trough of low pressure will approach South Florida
Friday. This trough of low pressure should pass through the
Florida Keys Friday night. High pressure will build southward down
the Florida peninsula Saturday into early next week.

The approximate shoreward edge of the Gulf Stream current, as of
November twenty-third, 2017,

66 NM South of Dry Tortugas Light...on Loggerhead Key.
 3 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
 2 NM South of Sand Key Light...off Key West.
 3 NM South of Looe Key...off Big Pine Key.
 4 NM South of Sombrero Key Light...off Marathon.
 5 NM Southeast of Alligator Reef Light...off Islamorada.
 4 NM Southeast of Molasses Reef Light...off Key Largo.
 Less than 1 NM East of Carysfort Reef Light...off Ocean Reef.

Gulf Stream Information Courtesy of the Naval Oceanographic Office.

$$

GMZ031-232130-
Florida Bay including Barnes Sound, Blackwater Sound, and
Buttonwood Sound-
1008 AM EST Thu Nov 23 2017

.THIS AFTERNOON...South winds 10 to 15 knots. Bay waters a light
to moderate chop. Scattered showers.
.TONIGHT...South to southwest winds 10 to 15 knots. Bay waters a
light to moderate chop. Scattered showers and thunderstorms.
.FRIDAY...Southwest winds 10 to 15 knots. Bay waters a light to
moderate chop. Scattered showers and isolated thunderstorms.
.FRIDAY NIGHT...Southwest to west winds 10 to 15 knots, becoming
northwest after midnight. Bay waters a light to moderate chop.
Isolated showers.
.SATURDAY...Northwest winds 10 to 15 knots. Bay waters a light to
moderate chop. Isolated showers.
.SATURDAY NIGHT...Northwest to north winds 10 to 15 knots. Bay
waters a light to moderate chop. Isolated showers.
.SUNDAY...North winds 10 to 15 knots. Bay waters a light to
moderate chop. Isolated showers.
.SUNDAY NIGHT...North to northeast winds 10 to 15 knots. Bay
waters a light to moderate chop. Isolated showers.
.MONDAY...Northeast winds 10 to 15 knots. Bay waters a light
to moderate chop. Isolated showers.
.MONDAY NIGHT...Northeast to east winds near 15 knots. Bay waters
a moderate chop. Isolated showers.

$$

GMZ032-035-232130-
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-
1008 AM EST Thu Nov 23 2017

.THIS AFTERNOON...South winds 10 to 15 knots. Seas around 1 foot.
Nearshore waters a light to moderate chop. Scattered showers.
.TONIGHT...South to southwest winds 10 to 15 knots. Seas around 1
foot. Nearshore waters a light to moderate chop. Scattered showers
and thunderstorms.
.FRIDAY...Southwest winds 10 to 15 knots. Seas around 1 foot.
Nearshore waters a light to moderate chop. Scattered showers and
isolated thunderstorms.
.FRIDAY NIGHT...Southwest to west winds 10 to 15 knots, becoming
northwest after midnight. Seas around 1 foot. Nearshore waters a
light to moderate chop. Isolated showers.
.SATURDAY...Northwest winds 10 to 15 knots. Seas around 1 foot.
Nearshore waters a light to moderate chop. Isolated showers.
.SATURDAY NIGHT...Northwest to north winds 10 to 15 knots. Seas 1
to 2 feet. Nearshore waters a light to moderate chop. Isolated
showers.
.SUNDAY...North winds 10 to 15 knots. Seas 1 to 2 feet. Nearshore
waters a light to moderate chop. Isolated showers.
.SUNDAY NIGHT...North to northeast winds 10 to 15 knots. Seas 1 to
2 feet. Nearshore waters a light to moderate chop. Isolated
showers.
.MONDAY...Northeast winds 10 to 15 knots. Seas 1 to 2 feet.
Nearshore waters a light to moderate chop. Isolated showers.
.MONDAY NIGHT...Northeast to east winds near 15 knots. Seas 1 to 2
feet. Nearshore waters a moderate chop. Isolated showers.

$$

GMZ042>044-232130-
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-
1008 AM EST Thu Nov 23 2017

.THIS AFTERNOON...South winds near 15 knots. Seas 2 to 3 feet.
Nearshore waters a moderate chop. Scattered showers.
.TONIGHT...South to southwest winds 10 to 15 knots. Seas around 2
feet. Nearshore waters a light to moderate chop. Scattered showers
and thunderstorms.
.FRIDAY...Southwest winds 10 to 15 knots. Seas around 2 feet.
Nearshore waters a light to moderate chop. Scattered showers and
isolated thunderstorms.
.FRIDAY NIGHT...Southwest to west winds 10 to 15 knots, becoming
northwest after midnight. Seas around 2 feet. Nearshore waters a
light to moderate chop. Isolated showers.
.SATURDAY...Northwest winds 10 to 15 knots. Seas around 2 feet.
Nearshore waters a light to moderate chop. Isolated showers.
.SATURDAY NIGHT...Northwest to north winds 10 to 15 knots. Seas
around 2 feet. Nearshore waters a light to moderate chop. Isolated
showers.
.SUNDAY...North winds 10 to 15 knots. Seas around 2 feet.
Nearshore waters a light to moderate chop. Isolated showers.
.SUNDAY NIGHT...North to northeast winds 10 to 15 knots. Seas
around 2 feet. Nearshore waters a light to moderate chop.
Isolated showers.
.MONDAY...Northeast winds near 15 knots. Seas 2 to 3 feet.
Nearshore waters a moderate chop. Isolated showers.
.MONDAY NIGHT...Northeast to east winds 15 to 20 knots. Seas 2 to
4 feet. Nearshore waters choppy. Isolated showers.

$$

GMZ052>055-072>075-232130-
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-
1008 AM EST Thu Nov 23 2017

.THIS AFTERNOON...South winds near 15 knots. Seas 3 to 4 feet.
Scattered showers.
.TONIGHT...South to southwest winds 10 to 15 knots. Seas 2 to 4
feet. Scattered showers and thunderstorms.
.FRIDAY...Southwest winds 10 to 15 knots. Seas 2 to 4 feet.
Scattered showers and isolated thunderstorms.
.FRIDAY NIGHT...Southwest to west winds 10 to 15 knots, becoming
northwest after midnight. Seas 2 to 4 feet. Isolated showers.
.SATURDAY...Northwest winds 10 to 15 knots. Seas 2 to 4 feet.
Isolated showers.
.SATURDAY NIGHT...Northwest to north winds 10 to 15 knots. Seas 2
to 4 feet. Isolated showers.
.SUNDAY...North winds 10 to 15 knots. Seas 2 to 4 feet. Isolated
showers.
.SUNDAY NIGHT...North to northeast winds near 15 knots. Seas 3 to
4 feet. Isolated showers.
.MONDAY...Northeast winds near 15 knots. Seas 3 to 5 feet.
Isolated showers.
.MONDAY NIGHT...Northeast to east winds 15 to 20 knots. Seas 4 to
6 feet. Isolated showers.

$$

GMZ033-034-232130-
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-
1008 AM EST Thu Nov 23 2017

.THIS AFTERNOON...South winds near 15 knots. Seas 2 to 4 feet.
Scattered showers.
.TONIGHT...South to southwest winds 10 to 15 knots. Seas 2 to 3
feet. Scattered showers and thunderstorms.
.FRIDAY...Southwest winds 10 to 15 knots. Seas 2 to 3 feet.
Scattered showers and isolated thunderstorms.
.FRIDAY NIGHT...Southwest to west winds 10 to 15 knots, becoming
northwest after midnight. Seas 2 to 3 feet. Isolated showers.
.SATURDAY...Northwest winds 10 to 15 knots. Seas 2 to 3 feet.
Isolated showers.
.SATURDAY NIGHT...Northwest to north winds 10 to 15 knots. Seas 2
to 3 feet. Isolated showers.
.SUNDAY...North winds 10 to 15 knots. Seas 2 to 3 feet. Isolated
showers.
.SUNDAY NIGHT...North to northeast winds 10 to 15 knots. Seas 2 to
3 feet. Isolated showers.
.MONDAY...Northeast winds near 15 knots. Seas 2 to 4 feet.
Isolated showers.
.MONDAY NIGHT...Northeast to east winds 15 to 20 knots. Seas 3 to
4 feet. Isolated showers.

$$
BS



USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.