698
FZUS52 KKEY 010214
CWFKEY

Coastal Waters Forecast for the Florida Keys
National Weather Service Key West FL
1014 PM EDT Tue Sep 30 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.

GMZ005-011415-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
1014 PM EDT Tue Sep 30 2025

.SYNOPSIS...Hurricane Imelda will continue to track northeastward,
and will allow for higher pressure to build in its place, and
gentle to moderate west to northwest breezes will gradually
slacken. The high pressure over the Eastern Seaboard will slowly
slide eastward into the western North Atlantic, with mainly gentle
northwesterly breezes eventually veering to the northeast to east
for the middle to latter part of the work week. Winds will then
clock around towards the southeast towards the end of the week and
into the upcoming weekend.

The Approximate Shoreward Edge of the Gulf Stream as of September
24...

53 NM South of Dry Tortugas Light...on Loggerhead Key.
37 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
37 NM South of Sand Key Light...off Key West.
28 NM South of Looe Key...off Big Pine Key.
22 NM Southeast of Sombrero Key Light...off Marathon.
18 NM Southeast of Alligator Reef Light...off Islamorada.
15 NM Southeast of Molasses Reef Light...off Key Largo.
 6 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.

$$

GMZ031-011415-
Florida Bay including Barnes Sound, Blackwater Sound, and
Buttonwood Sound-
1014 PM EDT Tue Sep 30 2025

.OVERNIGHT...West to northwest winds near 15 knots, becoming
northwest to north 10 to 15 knots late. Bay waters a moderate
chop, becoming a light to moderate chop. Scattered showers and
isolated thunderstorms.
.WEDNESDAY...Northwest to north winds near 10 knots, becoming
west to northwest in the afternoon. Bay waters a light chop.
Scattered showers and isolated thunderstorms.
.WEDNESDAY NIGHT...Northwest to north winds near 10 knots,
becoming north to northeast. Bay waters a light chop. Scattered
showers and isolated thunderstorms.
.THURSDAY...Northeast winds near 10 knots, briefly decreasing to
5 to 10 knots in the afternoon. Bay waters a light chop, becoming
smooth to a light chop. Scattered showers and isolated
thunderstorms.
.THURSDAY NIGHT...Northeast winds near 10 knots, increasing to 10
to 15 knots. Bay waters a light chop, becoming a light to
moderate chop. Scattered showers and isolated thunderstorms.
.FRIDAY...Northeast to east winds near 10 knots. Bay waters a
light chop. Scattered showers and isolated thunderstorms.
.FRIDAY NIGHT...Northeast to east winds near 10 knots, becoming
southeast 10 to 15 knots. Bay waters a light chop, becoming a
light to moderate chop. Scattered showers and isolated
thunderstorms.
.SATURDAY...Southeast to south winds 10 to 15 knots. Bay waters a
light to moderate chop. Scattered showers and isolated
thunderstorms.
.SATURDAY NIGHT...Southeast winds 10 to 15 knots. Bay waters a
light to moderate chop. Scattered showers and isolated
thunderstorms.
.SUNDAY...Southeast winds near 10 knots. Bay waters a light chop.
Scattered showers and isolated thunderstorms.
.SUNDAY NIGHT...East winds 10 to 15 knots. Bay waters a light to
moderate chop. Scattered showers and isolated thunderstorms.

$$

GMZ032-035-011415-
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-
1014 PM EDT Tue Sep 30 2025

.OVERNIGHT...West to northwest winds near 15 knots, becoming
northwest 10 to 15 knots late. Seas 2 to 3 feet, subsiding to 1
to 2 feet. Nearshore waters a moderate chop, becoming a light to
moderate chop. Scattered showers and isolated thunderstorms.
.WEDNESDAY...North to northeast winds near 10 knots, becoming
northwest to north and briefly decreasing to 5 to 10 knots in the
afternoon. Seas 1 to 2 feet. Nearshore waters a light chop,
becoming smooth to a light chop. Scattered showers and isolated
thunderstorms.
.WEDNESDAY NIGHT...Northwest to north winds near 10 knots,
becoming north to northeast. Seas 1 to 2 feet. Nearshore waters a
light chop. Scattered showers and isolated thunderstorms.
.THURSDAY...North to northeast winds near 10 knots, briefly
decreasing to 5 to 10 knots in the afternoon. Seas 1 to 2 feet,
subsiding to around 1 foot. West of the Marquesas Keys, seas 1 to
2 feet. Nearshore waters a light chop, becoming smooth to a light
chop. Scattered showers and isolated thunderstorms.
.THURSDAY NIGHT...Northeast winds near 10 knots, increasing to 10
to 15 knots. Seas 1 to 2 feet, except building to 2 to 3 feet west
of the Marquesas Keys. Nearshore waters a light chop, becoming a
light to moderate chop. Scattered showers and isolated
thunderstorms.
.FRIDAY...Northeast to east winds near 10 knots. Seas 1 to
2 feet. West of the Marquesas Keys, seas 2 to 3 feet, subsiding to
around 2 feet. Nearshore waters a light chop. Scattered showers
and isolated thunderstorms.
.FRIDAY NIGHT...Northeast to east winds near 10 knots, becoming
east to southeast 10 to 15 knots. Seas 1 to 2 feet. Nearshore
waters a light chop, becoming a light to moderate chop. Scattered
showers and isolated thunderstorms.
.SATURDAY...Southeast to south winds 10 to 15 knots. Seas 1 to 2
feet. Nearshore waters a light to moderate chop. Scattered
showers and isolated thunderstorms.
.SATURDAY NIGHT...Southeast winds 10 to 15 knots. Seas 1 to
2 feet. Nearshore waters a light to moderate chop. Scattered
showers and isolated thunderstorms.
.SUNDAY...Southeast winds 10 to 15 knots. Seas around 1 foot.
Nearshore waters a light to moderate chop. Scattered showers and
isolated thunderstorms.
.SUNDAY NIGHT...East to southeast winds 10 to 15 knots. Seas 1 to
2 feet. Nearshore waters a light to moderate chop. Scattered
showers and isolated thunderstorms.

$$

GMZ042>044-011415-
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-
1014 PM EDT Tue Sep 30 2025

.OVERNIGHT...West to northwest winds near 15 knots, becoming
northwest to north and decreasing to 10 to 15 knots late. Seas 2
to 3 feet, subsiding to 1 to 2 feet. Nearshore waters a moderate
chop, becoming a light to moderate chop. Isolated showers and
thunderstorms.
.WEDNESDAY...Northwest to north winds near 10 knots, briefly
decreasing to 5 to 10 knots in the afternoon. Seas 1 to 2 feet,
subsiding to around 1 foot. West of Cosgrove Shoal Light, seas 1
to 2 feet. Nearshore waters a light chop, becoming smooth to a
light chop. Isolated showers and thunderstorms.
.WEDNESDAY NIGHT...Northwest to north winds near 10 knots,
becoming north to northeast. Seas around 1 foot, except 1 to 2
feet west of Cosgrove Shoal Light. Nearshore waters a light chop.
Scattered showers and isolated thunderstorms.
.THURSDAY...North to northeast winds near 10 knots, briefly
decreasing to 5 to 10 knots in the afternoon. Seas around 1 foot.
Nearshore waters a light chop, becoming smooth to a light chop.
Scattered showers and isolated thunderstorms.
.THURSDAY NIGHT...North to northeast winds near 10 knots,
increasing to 10 to 15 knots. Seas building to 1 to 2 feet.
Nearshore waters a light chop, becoming a light to moderate chop.
Scattered showers and isolated thunderstorms.
.FRIDAY...Northeast to east winds near 10 knots. Seas 1 to
2 feet. Nearshore waters a light chop. Scattered showers and
isolated thunderstorms.
.FRIDAY NIGHT...Northeast to east winds near 10 knots, becoming
southeast 10 to 15 knots. Seas 1 to 2 feet. Nearshore waters a
light chop, becoming a light to moderate chop. Scattered showers
and isolated thunderstorms.
.SATURDAY...Southeast to south winds 10 to 15 knots. Seas 1 to 3
feet. Nearshore waters a light to moderate chop. Scattered
showers and isolated thunderstorms.
.SATURDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to
3 feet. Nearshore waters a light to moderate chop. Scattered
showers and isolated thunderstorms.
.SUNDAY...Southeast winds 10 to 15 knots. Seas 1 to 2 feet.
Nearshore waters a light to moderate chop. Scattered showers and
isolated thunderstorms.
.SUNDAY NIGHT...East to southeast winds 10 to 15 knots. Seas 1 to
2 feet. Nearshore waters a light to moderate chop. Scattered
showers and isolated thunderstorms.

$$

GMZ052>055-072>075-011415-
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-
1014 PM EDT Tue Sep 30 2025

.OVERNIGHT...West to northwest winds near 15 knots, decreasing to
10 to 15 knots late. Seas briefly 4 to 6 feet, occasionally to 7
feet, due to northerly swell, subsiding to 3 to 6 feet. Wave
Detail: West 4 feet at 5 seconds and north to northeast 4 feet at
10 seconds. Scattered showers and isolated thunderstorms.
.WEDNESDAY...Northwest winds near 10 knots, decreasing to 5 to 10
knots in the afternoon. Seas 3 to 5 feet, occasionally to 6 feet,
due to northerly swell, subsiding to 2 to 4 feet. Wave Detail:
North to northeast 4 feet at 9 seconds and west 2 feet at 5
seconds. Scattered showers and isolated thunderstorms.
.WEDNESDAY NIGHT...Northwest winds 5 to 10 knots. Seas 2 to
4 feet, occasionally to 5 feet, due to northerly swell, subsiding
to 2 to 3 feet. Wave Detail: North to northeast 4 feet at 10
seconds and west 2 feet at 4 seconds. Scattered showers and
isolated thunderstorms.
.THURSDAY...North to northeast winds 5 to 10 knots, becoming
northeast to east. Seas 2 to 3 feet due to northerly swell.
Scattered showers and isolated thunderstorms.
.THURSDAY NIGHT...Northeast to east winds near 10 knots,
increasing to 10 to 15 knots. Seas building to 3 to 4 feet,
occasionally to 5 feet. Scattered showers and isolated
thunderstorms.
.FRIDAY...East winds near 10 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Isolated showers and thunderstorms.
.FRIDAY NIGHT...East to southeast winds 10 to 15 knots. Seas 3 to
4 feet, occasionally to 5 feet. Scattered showers and isolated
thunderstorms.
.SATURDAY...Southeast to south winds 10 to 15 knots. Seas 3 to 4
feet, occasionally to 5 feet. Scattered showers and isolated
thunderstorms.
.SATURDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to
4 feet, occasionally to 5 feet. Scattered showers and isolated
thunderstorms.
.SUNDAY...Southeast winds 10 to 15 knots. Seas 2 to 3 feet.
Scattered showers and isolated thunderstorms.
.SUNDAY NIGHT...East winds near 15 knots. Seas around 2 feet.
Scattered showers and isolated thunderstorms.

$$

GMZ033-034-011415-
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-
1014 PM EDT Tue Sep 30 2025

.OVERNIGHT...Northwest winds near 15 knots, decreasing to 10 to
15 knots. Seas 2 to 3 feet. Wave Detail: Northwest 3 feet at 5
seconds. Scattered showers and isolated thunderstorms.
.WEDNESDAY...North to northeast winds 10 to 15 knots, becoming
northwest to north near 10 knots. Seas around 2 feet. Wave
Detail: Northwest to north 2 feet at 5 seconds. Scattered showers
and isolated thunderstorms.
.WEDNESDAY NIGHT...North to northeast winds 10 to 15 knots. Seas
around 2 feet. Wave Detail: Northwest to north 2 feet at
5 seconds. Scattered showers and isolated thunderstorms.
.THURSDAY...North to northeast winds near 10 knots. Seas subsiding
to 1 to 2 feet. Scattered showers and isolated thunderstorms.
.THURSDAY NIGHT...Northeast to east winds increasing to 15 to 20
knots. Seas around 2 feet, building to 3 to 4 feet, occasionally
to 5 feet. Scattered showers and isolated thunderstorms.
.FRIDAY...Northeast winds decreasing to 10 to 15 knots. Seas 2 to
4 feet, occasionally to 5 feet, subsiding to 1 to 3 feet.
Scattered showers and isolated thunderstorms.
.FRIDAY NIGHT...Northeast to east winds near 10 knots, becoming
southeast 10 to 15 knots. Seas 1 to 2 feet. Scattered showers and
isolated thunderstorms.
.SATURDAY...Southeast to south winds 10 to 15 knots, decreasing
to near 10 knots. Seas around 2 feet, subsiding to 1 to 2 feet.
Scattered showers and isolated thunderstorms.
.SATURDAY NIGHT...Southeast to south winds increasing to 10 to 15
knots. Seas building to around 2 feet. Scattered showers and
isolated thunderstorms.
.SUNDAY...Southeast to south winds 10 to 15 knots. Seas 1 to
2 feet. Scattered showers and isolated thunderstorms.
.SUNDAY NIGHT...East to southeast winds 10 to 15 knots. Seas 1 to
2 feet. Scattered showers and isolated thunderstorms.

$$