605
FZUS52 KKEY 022128
CWFKEY

Coastal Waters Forecast for the Florida Keys
National Weather Service Key West FL
428 PM EST Sun Nov 2 2025

Florida Bay, Hawk Channel and Straits of Florida from Ocean Reef
to south of Dry Tortugas, and the extreme southeastern Gulf of
America, 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.

Wave Detail will include details about the period and direction
of origin for the highest energy waves. Long-period swells coming
from a different direction than the wind would be included in the
Wave Detail.

GMZ005-030930-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
428 PM EST Sun Nov 2 2025

.SYNOPSIS...Gentle to moderate northeasterly breezes will continue
today, but an upper level weather system currently over the
Mississippi Valley will track east southeast, and will likely
freshen winds as an associated front surges across the region
sometime Monday and Tuesday. Thereafter, the next ridge will build
in and breezes will slacken.

The Approximate Shoreward Edge of the Gulf Stream as of October
28...

49 NM South of Dry Tortugas Light...on Loggerhead Key.
40 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
20 NM South of Sand Key Light...off Key West.
17 NM South of Looe Key...off Big Pine Key.
17 NM Southeast of Sombrero Key Light...off Marathon.
 4 NM Southeast of Alligator Reef Light...off Islamorada.
 2 NM Southeast of Molasses Reef Light...off Key Largo.
 2 NM Southeast of Carysfort Reef Light...off Ocean Reef.

Gulf Stream Information Courtesy of the National Weather Service in
Key West based on products from NASA SPoRT.

$$

GMZ031-030930-
Florida Bay including Barnes Sound, Blackwater Sound, and
Buttonwood Sound-
428 PM EST Sun Nov 2 2025

.TONIGHT...Northeast to east winds 10 to 15 knots, becoming north
to northeast late. Bay waters a light to moderate chop, becoming
a light chop late. Scattered showers and isolated thunderstorms.
.MONDAY...North to northeast winds near 10 knots, becoming
northwest to north 10 to 15 knots late. Bay waters a light chop,
becoming a light to moderate chop. Isolated showers.
.MONDAY NIGHT...North winds near 15 knots, becoming north to
northeast 15 to 20 knots. Bay waters a moderate chop, becoming
choppy.
.TUESDAY...Northeast winds 15 to 20 knots, briefly decreasing to
near 15 knots in the afternoon. Bay waters choppy, becoming a
moderate chop.
.TUESDAY NIGHT...Northeast winds 15 to 20 knots, decreasing to
near 15 knots. Bay waters choppy, becoming a moderate chop.
.WEDNESDAY...Northeast to east winds near 15 knots. Bay waters a
moderate chop.
.WEDNESDAY NIGHT...Northeast winds decreasing to 10 to 15 knots.
Bay waters becoming a light to moderate chop. Isolated showers.
.THURSDAY...Northeast to east winds increasing to near 15 knots.
Bay waters becoming a moderate chop. Isolated showers.
.THURSDAY NIGHT...Northeast to east winds near 15 knots,
decreasing to 10 to 15 knots. Bay waters a moderate chop, becoming
a light to moderate chop. Scattered showers.
.FRIDAY AND FRIDAY NIGHT...East winds 10 to 15 knots. Bay waters
a light to moderate chop. Scattered showers.

$$

GMZ032-035-030930-
Bayside and Gulfside from Craig Key to west end of Seven Mile
Bridge-
Gulf of America from west end of Seven Mile Bridge to Halfmoon
Shoal out to 5 Fathoms-
428 PM EST Sun Nov 2 2025

.TONIGHT...Northeast winds 10 to 15 knots, becoming north to
northeast. Seas 1 to 2 feet. Nearshore waters a light to moderate
chop. Scattered showers and isolated thunderstorms.
.MONDAY...North to northeast winds 10 to 15 knots, becoming
northwest to north 15 to 20 knots late. Seas 1 to 2 feet, except
building to 2 to 3 feet west of the Marquesas Keys. Nearshore
waters a light to moderate chop, becoming choppy. Isolated
showers.
.MONDAY NIGHT...North to northeast winds 15 to 20 knots. Seas
building to 2 to 4 feet, occasionally to 5 feet, except building
to 4 to 5 feet, occasionally to 6 feet west of the Marquesas
Keys. Nearshore waters choppy.
.TUESDAY...Northeast winds 15 to 20 knots, briefly decreasing to
near 15 knots in the afternoon. Seas 2 to 4 feet, occasionally to
5 feet, except 4 to 6 feet, occasionally to 8 feet west of the
Marquesas Keys. Nearshore waters choppy, becoming a moderate chop.
.TUESDAY NIGHT...Northeast to east winds 15 to 20 knots. Seas
2 to 3 feet, except 3 to 4 feet, occasionally to 5 feet west of
the Marquesas Keys. Nearshore waters choppy.
.WEDNESDAY...Northeast to east winds near 15 knots. Seas 2 to
3 feet, subsiding to 1 to 2 feet. West of the Marquesas Keys, seas
3 to 4 feet, subsiding to 2 to 3 feet. Nearshore waters a
moderate chop.
.WEDNESDAY NIGHT...Northeast to east winds near 15 knots. Seas
1 to 2 feet, except 2 to 3 feet west of the Marquesas Keys.
Nearshore waters a moderate chop. Isolated showers.
.THURSDAY...Northeast to east winds 10 to 15 knots. Seas 1 to
2 feet, except 2 to 3 feet west of the Marquesas Keys. Nearshore
waters a light to moderate chop. Isolated showers.
.THURSDAY NIGHT...Northeast to east winds near 15 knots. Seas
1 to 2 feet, except 2 to 3 feet west of the Marquesas Key.
Nearshore waters a moderate chop. Scattered showers.
.FRIDAY...East winds 10 to 15 knots. Seas 1 to 2 feet, except
2 to 3 feet west of the Marquesas Keys. Nearshore waters a light
to moderate chop. Scattered showers.
.FRIDAY NIGHT...East to southeast winds 10 to 15 knots. Seas
1 to 2 feet. Nearshore waters a light to moderate chop. Scattered
showers.

$$

GMZ042>044-030930-
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-
428 PM EST Sun Nov 2 2025

.TONIGHT...Northeast winds near 15 knots. Seas 1 to 2 feet.
Nearshore waters a moderate chop. Scattered showers and isolated
thunderstorms.
.MONDAY...North to northeast winds 10 to 15 knots, becoming
northwest to north 15 to 20 knots late. Seas 1 to 2 feet. West of
Cosgrove Shoal Light, seas building to 2 to 3 feet. Nearshore
waters a light to moderate chop, becoming choppy. Isolated
showers.
.MONDAY NIGHT...North to northeast winds 15 to 20 knots. Seas
2 to 3 feet, except 3 to 5 feet, occasionally to 6 feet west of
Cosgrove Shoal Light. Nearshore waters choppy. Isolated showers.
.TUESDAY...Northeast winds 15 to 20 knots. Seas 2 to 3 feet,
except 4 to 5 feet, occasionally to 6 feet west of Cosgrove Shoal
Light. Nearshore waters choppy.
.TUESDAY NIGHT...Northeast to east winds 15 to 20 knots. Seas
2 to 3 feet, except 3 to 4 feet, occasionally to 5 feet west of
Cosgrove Shoal Light. Nearshore waters choppy.
.WEDNESDAY...Northeast to east winds near 15 knots. Seas 2 to
4 feet, occasionally to 5 feet. Nearshore waters a moderate chop.
.WEDNESDAY NIGHT...Northeast to east winds near 15 knots. Seas
2 to 3 feet. Nearshore waters a moderate chop. Isolated showers.
.THURSDAY...Northeast to east winds near 15 knots. Seas 2 to
3 feet. Nearshore waters a moderate chop. Isolated showers.
.THURSDAY NIGHT...Northeast to east winds near 15 knots. Seas
2 to 3 feet. Nearshore waters a moderate chop. Scattered showers.
.FRIDAY...East winds 10 to 15 knots. Seas 2 to 3 feet. Nearshore
waters a light to moderate chop. Scattered showers.
.FRIDAY NIGHT...East winds near 15 knots, becoming east to
southeast. Seas 2 to 3 feet. Nearshore waters a moderate chop.
Scattered showers.

$$

GMZ052>055-072>075-030930-
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-
428 PM EST Sun Nov 2 2025

.TONIGHT...Northeast winds near 15 knots. Seas 2 to 3 feet. Wave
Detail: Northeast to east 3 feet at 5 seconds. Scattered showers
and isolated thunderstorms.
.MONDAY...North to northeast winds 10 to 15 knots, increasing to
near 15 knots in the afternoon. Seas 2 to 3 feet. Wave Detail:
Northeast 3 feet at 5 seconds. Isolated showers.
.MONDAY NIGHT...North to northeast winds 15 to 20 knots,
increasing to near 20 knots. Seas 2 to 4 feet, occasionally to 5
feet, building to 4 to 6 feet, occasionally to 8 feet. Wave
Detail: North to northeast 4 feet at 5 seconds, becoming north to
northeast 5 feet at 6 seconds. Isolated showers.
.TUESDAY...Northeast winds near 20 knots, decreasing to 15 to 20
knots. Seas 5 to 7 feet, occasionally to 9 feet.
.TUESDAY NIGHT...Northeast to east winds 15 to 20 knots. Seas
5 to 7 feet, occasionally to 9 feet. Isolated showers.
.WEDNESDAY...Northeast to east winds near 15 knots. Seas 4 to
6 feet, occasionally to 8 feet. Isolated showers.
.WEDNESDAY NIGHT...Northeast to east winds near 15 knots. Seas
4 to 5 feet, occasionally to 6 feet, subsiding to 3 to 4 feet,
occasionally to 5 feet. Scattered showers.
.THURSDAY...Northeast to east winds near 15 knots. Seas 3 to
4 feet, occasionally to 5 feet. Scattered showers.
.THURSDAY NIGHT...Northeast to east winds 15 to 20 knots. Seas
4 to 5 feet, occasionally to 6 feet. Scattered showers.
.FRIDAY...East winds 10 to 15 knots. Seas 2 to 4 feet,
occasionally to 5 feet. Scattered showers.
.FRIDAY NIGHT...East to southeast winds 10 to 15 knots. Seas
around 2 feet. Scattered showers.

$$

GMZ033-034-030930-
Gulf of America from East Cape Sable to Chokoloskee 20 to 60 NM
out and beyond 5 fathoms-
Gulf of America including Dry Tortugas and Rebecca Shoal Channel-
428 PM EST Sun Nov 2 2025

.TONIGHT...Northeast to east winds 10 to 15 knots. Seas 1 to 2
feet. Wave Detail: Northeast to east 2 feet at 4 seconds.
Scattered showers and isolated thunderstorms.
.MONDAY....MONDAY...North to northeast winds 10 to 15 knots,
increasing to 15 to 20 knots in the afternoon. Seas building to 2
to 3 feet. Wave Detail: North 3 feet at 4 seconds. Wave Detail:
North 3 feet at 4 seconds. Isolated showers.
.MONDAY NIGHT...North to northeast winds 15 to 20 knots,
increasing to near 20 knots. Seas 3 to 5 feet, occasionally to 6
feet. Wave Detail: North 5 feet at 5 seconds.
.TUESDAY...Northeast winds near 20 knots, becoming northeast to
east 15 to 20 knots. Seas 3 to 5 feet, occasionally to 6 feet.
.TUESDAY NIGHT...Northeast to east winds 15 to 20 knots. Seas
3 to 4 feet, occasionally to 5 feet.
.WEDNESDAY...Northeast to east winds near 15 knots, decreasing to
10 to 15 knots. Seas 2 to 4 feet, occasionally to 5 feet.
.WEDNESDAY NIGHT...Northeast to east winds 10 to 15 knots. Seas
2 to 3 feet. Isolated showers.
.THURSDAY...Northeast winds 10 to 15 knots. Seas 2 to 3 feet.
Isolated showers.
.THURSDAY NIGHT...Northeast to east winds near 15 knots. Seas
2 to 3 feet. Isolated showers.
.FRIDAY...East winds 10 to 15 knots. Seas 2 to 3 feet. Scattered
showers.
.FRIDAY NIGHT...East to southeast winds 10 to 15 knots. Seas 1 to
2 feet. Scattered showers.

$$