Coastal Waters Forecast
Issued by NWS Key West, FL

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 29
892
FZUS52 KKEY 060309 CCA
CWFKEY

Coastal Waters Forecast for the Florida Keys...CORRECTED
National Weather Service Key West FL
1109 PM EDT Sat Oct 5 2024

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.

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.

GMZ005-061000-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
1109 PM EDT Sat Oct 5 2024

.SYNOPSIS...Gentle mainly southeast breezes will continue through
the rest of the weekend, coupled with bouts of rainy and thundery
conditions. Tropical Storm Milton will continue to intensify in
the Gulf of Mexico, likely strengthening into a hurricane as it
moves east northeastward across the Gulf and toward the western
Florida Peninsula early next week. Regardless of the eventual
strength and track of the system, an extended period of above
normal rain and thunder chances along with freshening breezes and
building seas are expected for the Florida Keys coastal waters
next week.

The Approximate Shoreward Edge of the Gulf Stream as of October
1...

25 NM South of Dry Tortugas Light...on Loggerhead Key.
15 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
14 NM South of Sand Key Light...off Key West.
13 NM South of Looe Key...off Big Pine Key.
15 NM South of Sombrero Key Light...off Marathon.
 8 NM Southeast of Alligator Reef Light...off Islamorada.
 3 NM Southeast of Molasses Reef Light...off Key Largo.
 3 NM East of Carysfort Reef Light...off Ocean Reef.

Gulf Stream Information Courtesy of the National Weather Service in
Key West based on products from the Real Time Ocean Forecast
System.

$$

GMZ031-061000-
Florida Bay including Barnes Sound, Blackwater Sound, and
Buttonwood Sound-
1109 PM EDT Sat Oct 5 2024

.OVERNIGHT...East to southeast winds 5 to 10 knots. Bay waters
smooth to a light chop. Isolated showers and thunderstorms late
this evening, then numerous showers and scattered thunderstorms.
.SUNDAY AND SUNDAY NIGHT...Southeast winds 5 to 10 knots. Bay
waters smooth to a light chop. Numerous showers and scattered
thunderstorms.
.MONDAY...South to southwest winds near 10 knots. Bay waters a
light chop. Numerous showers and scattered thunderstorms.
.MONDAY NIGHT...Southwest winds near 10 knots. Bay waters a light
chop. Numerous showers and scattered thunderstorms.
.TUESDAY...South to southwest winds 10 to 15 knots, becoming south
near 15 knots in the afternoon. Bay waters a light to moderate
chop, becoming a moderate chop. Numerous showers and scattered
thunderstorms.
.TUESDAY NIGHT THROUGH WEDNESDAY NIGHT...Tropical storm
conditions possible.
.THURSDAY...Northwest winds 15 to 20 knots, decreasing to near
15 knots. Bay waters choppy, becoming a moderate chop. Scattered
showers and isolated thunderstorms.
.THURSDAY NIGHT...North winds near 15 knots. Bay waters a
moderate chop. Scattered showers and isolated thunderstorms.

$$

GMZ032-061000-
Bayside and Gulf side from Craig Key to west end of Seven Mile
Bridge-
1109 PM EDT Sat Oct 5 2024

.OVERNIGHT...East to southeast winds 5 to 10 knots. Seas around 1
foot. Nearshore waters smooth to a light chop. Isolated showers
and thunderstorms late this evening, then numerous showers and
scattered thunderstorms.
.SUNDAY AND SUNDAY NIGHT...Southeast to south winds 5 to 10
knots. Seas around 1 foot. Nearshore waters smooth to a light
chop. Numerous showers and scattered thunderstorms.
.MONDAY...South to southwest winds near 10 knots. Seas around 1
foot. Nearshore waters a light chop. Numerous showers and
scattered thunderstorms.
.MONDAY NIGHT...Southwest winds near 10 knots. Seas around 1
foot. Nearshore waters a light chop. Numerous showers and
scattered thunderstorms.
.TUESDAY...South to southwest winds 10 to 15 knots, becoming south
near 15 knots in the afternoon. Seas building to 2 to 3 feet.
Nearshore waters a light to moderate chop, becoming a moderate
chop. Numerous showers and scattered thunderstorms.
.TUESDAY NIGHT THROUGH WEDNESDAY NIGHT...Tropical storm
conditions possible.
.THURSDAY...Northwest winds 15 to 20 knots, decreasing to near 15
knots. Seas 1 to 2 feet. Nearshore waters choppy, becoming a
moderate chop. Scattered showers and isolated thunderstorms.
.THURSDAY NIGHT...North to northeast winds near 15 knots. Seas 1
to 2 feet. Nearshore waters a moderate chop. Scattered showers
and isolated thunderstorms.

$$

GMZ035-061000-
Gulf of Mexico from west end of Seven Mile Bridge to Halfmoon
Shoal out to 5 Fathoms-
1109 PM EDT Sat Oct 5 2024

.OVERNIGHT...East to southeast winds 5 to 10 knots. Seas around 1
foot. Nearshore waters smooth to a light chop. Isolated showers
and thunderstorms late this evening, then numerous showers and
scattered thunderstorms.
.SUNDAY AND SUNDAY NIGHT...Southeast to south winds near 10
knots. Seas around 1 foot. Nearshore waters a light chop. Numerous
showers and scattered thunderstorms.
.MONDAY...Southwest winds 10 to 15 knots. Seas 1 to 2 feet.
Nearshore waters a light to moderate chop. Numerous showers and
scattered thunderstorms.
.MONDAY NIGHT...Southwest 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. Numerous showers and scattered
thunderstorms.
.TUESDAY...South to southwest winds 10 to 15 knots, becoming south
15 to 20 knots in the afternoon. Seas building to 2 to 3 feet,
except building to 3 to 5 feet, occasionally to 6 feet west of
the Marquesas Keys. Nearshore waters a light to moderate chop,
becoming choppy. Numerous showers and scattered thunderstorms.
.TUESDAY NIGHT THROUGH WEDNESDAY NIGHT...Tropical storm
conditions possible.
.THURSDAY...Northwest to north winds 15 to 20 knots. Seas 2 to
4 feet, occasionally to 5 feet, except 4 to 5 feet, occasionally
to 6 feet west of the Marquesas Keys. Nearshore waters choppy.
Scattered showers and isolated thunderstorms.
.THURSDAY NIGHT...North to northeast winds 15 to 20 knots. Seas 3
to 5 feet, occasionally to 6 feet, except 5 to 6 feet,
occasionally to 8 feet west of the Marquesas Keys. Nearshore
waters choppy. Scattered showers and isolated thunderstorms.

$$

GMZ042-043-061000-
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-
1109 PM EDT Sat Oct 5 2024

.OVERNIGHT...East to southeast winds 5 to 10 knots. Seas 1 to
2 feet. Nearshore waters smooth to a light chop. Isolated showers
and thunderstorms late this evening, then numerous showers and
scattered thunderstorms.
.SUNDAY...Southeast winds 5 to 10 knots. Seas 1 to 2 feet.
Nearshore waters smooth to a light chop. Numerous showers and
scattered thunderstorms.
.SUNDAY NIGHT...Southeast to south winds 5 to 10 knots. Seas 1 to
2 feet. Nearshore waters smooth to a light chop. Numerous showers
and scattered thunderstorms.
.MONDAY...South to southwest winds 10 to 15 knots. Seas 1 to 2
feet. Nearshore waters a light to moderate chop. Numerous showers
and scattered thunderstorms.
.MONDAY NIGHT...Southwest winds 10 to 15 knots. Seas 1 to 2 feet.
Nearshore waters a light to moderate chop. Numerous showers and
scattered thunderstorms.
.TUESDAY...South to southwest winds 10 to 15 knots, becoming south
near 15 knots in the afternoon. Seas 2 to 3 feet. Nearshore
waters a light to moderate chop, becoming a moderate chop.
Numerous showers and scattered thunderstorms.
.TUESDAY NIGHT THROUGH WEDNESDAY NIGHT...Tropical storm
conditions possible.
.THURSDAY...West to northwest winds 15 to 20 knots, becoming
northwest to north near 15 knots. Seas 1 to 2 feet. Nearshore
waters choppy, becoming a moderate chop. Scattered showers and
isolated thunderstorms.
.THURSDAY NIGHT...North winds near 15 knots. Seas building to 2
to 4 feet, occasionally to 5 feet. Nearshore waters a moderate
chop. Scattered showers and isolated thunderstorms.

$$

GMZ044-061000-
Hawk Channel from west end of Seven Mile Bridge to Halfmoon Shoal
out to the reef-
1109 PM EDT Sat Oct 5 2024

.OVERNIGHT...Southeast winds 5 to 10 knots. Seas around 1 foot.
Nearshore waters smooth to a light chop. Isolated showers and
thunderstorms late this evening, then numerous showers and
scattered thunderstorms.
.SUNDAY...Southeast to south winds near 10 knots. Seas 1 to 2
feet. Nearshore waters a light chop. Numerous showers and
scattered thunderstorms.
.SUNDAY NIGHT...South to southwest winds near 10 knots. Seas 1 to
2 feet. Nearshore waters a light chop. Numerous showers and
scattered thunderstorms.
.MONDAY...Southwest winds 10 to 15 knots. Seas building to around
2 feet. Nearshore waters a light to moderate chop. Numerous
showers and scattered thunderstorms.
.MONDAY NIGHT...Southwest winds 10 to 15 knots. Seas around 2
feet. Nearshore waters a light to moderate chop. Numerous showers
and scattered thunderstorms.
.TUESDAY...South to southwest winds 10 to 15 knots, becoming
south 15 to 20 knots in the afternoon. Seas building to 3 to 5
feet, occasionally to 6 feet. Nearshore waters a light to moderate
chop, becoming choppy. Numerous showers and scattered
thunderstorms.
.TUESDAY NIGHT THROUGH WEDNESDAY NIGHT...Tropical storm
conditions possible.
.THURSDAY...Northwest to north 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. Scattered showers
and isolated thunderstorms.
.THURSDAY NIGHT...North to northeast winds 15 to 20 knots. Seas 3
to 5 feet, occasionally to 6 feet, except 4 to 6 feet,
occasionally to 8 feet west of Cosgrove Shoal Light. Nearshore
waters choppy. Scattered showers and isolated thunderstorms.

$$

GMZ052-053-072-073-061000-
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 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-
1109 PM EDT Sat Oct 5 2024

.OVERNIGHT...East to southeast winds near 10 knots. Seas 2 to 3
feet. Wave Detail: East 2 feet at 4 seconds. Isolated showers and
thunderstorms late this evening, then numerous showers and
scattered thunderstorms.
.SUNDAY...Southeast winds near 10 knots. Seas 2 to 3 feet. Wave
Detail: East to southeast 2 feet at 4 seconds. Numerous showers
and scattered thunderstorms.
.SUNDAY NIGHT...Southeast to south winds near 10 knots. Seas
around 2 feet. Wave Detail: Southeast 2 feet at 4 seconds and
north to northeast 1 foot at 12 seconds. Numerous showers and
scattered thunderstorms.
.MONDAY...South to southwest winds 10 to 15 knots. Seas around
2 feet. Scattered showers and thunderstorms.
.MONDAY NIGHT...Southwest winds 10 to 15 knots. Seas around
2 feet. Numerous showers and scattered thunderstorms.
.TUESDAY...South to southwest winds 10 to 15 knots, becoming south
near 15 knots in the afternoon. Seas building to 3 to 4 feet.
Numerous showers and scattered thunderstorms.
.TUESDAY NIGHT THROUGH WEDNESDAY NIGHT...Tropical storm
conditions possible.
.THURSDAY...West to northwest winds 15 to 20 knots, becoming
northwest to north near 15 knots. Seas 2 to 4 feet, occasionally
to 5 feet. Scattered showers and isolated thunderstorms.
.THURSDAY NIGHT...North winds near 15 knots. Seas 4 to 6 feet,
occasionally to 8 feet. Scattered showers and isolated
thunderstorms.

$$

GMZ054-074-061000-
Straits of Florida from west end of Seven Mile Bridge to south of
Halfmoon Shoal out 20 NM-
Straits of Florida from west end of Seven Mile Bridge to south of
Halfmoon Shoal 20 to 60 NM out-
1109 PM EDT Sat Oct 5 2024

.OVERNIGHT...East to southeast winds near 10 knots. Seas around 2
feet. Wave Detail: East 2 feet at 4 seconds. Numerous showers and
scattered thunderstorms.
.SUNDAY...Southeast to south winds near 10 knots. Seas around 2
feet. Wave Detail: East 1 foot at 4 seconds. Scattered showers and
thunderstorms.
.SUNDAY NIGHT...South to southwest winds near 10 knots. Seas
around 2 feet. Wave Detail: East 1 foot at 4 seconds. Numerous
showers and scattered thunderstorms.
.MONDAY...Southwest winds 10 to 15 knots. Seas 2 to 3 feet.
Scattered showers and thunderstorms.
.MONDAY NIGHT...Southwest winds 10 to 15 knots. Seas 2 to 3 feet.
Numerous showers and scattered thunderstorms.
.TUESDAY...South winds 10 to 15 knots, increasing to 15 to
20 knots in the afternoon. Seas 3 to 5 feet, occasionally to
6 feet. Numerous showers and scattered thunderstorms.
.TUESDAY NIGHT THROUGH WEDNESDAY NIGHT...Tropical storm
conditions possible.
.THURSDAY...Northwest to north winds 15 to 20 knots. Seas 2 to
4 feet, occasionally to 5 feet. Scattered showers and isolated
thunderstorms.
.THURSDAY NIGHT...North to northeast winds near 15 knots. Seas 3
to 5 feet, occasionally to 6 feet. Scattered showers and isolated
thunderstorms.

$$

GMZ055-075-061000-
Straits of Florida from Halfmoon Shoal to 20 NM west of Dry
Tortugas out 20 NM-
Straits of Florida from Halfmoon Shoal to 20 NM west of Dry
Tortugas 20 to 60 NM out-
1109 PM EDT Sat Oct 5 2024

Corrected format

.OVERNIGHT...Southeast winds near 10 knots. Seas 1 to 2 feet.
Wave Detail: East 1 foot at 4 seconds. Numerous showers and
scattered thunderstorms.
.SUNDAY...South to southwest winds 5 to 10 knots. Seas 1 to
2 feet. Wave Detail: East to southeast 1 foot at 4 seconds.
Scattered showers and thunderstorms.
.SUNDAY NIGHT...Southwest winds near 10 knots. Seas 1 to 2 feet.
Wave Detail: Southwest 1 foot at 3 seconds and east to southeast 1
foot at 4 seconds. Numerous showers and scattered thunderstorms.
.MONDAY...Southwest winds 10 to 15 knots. Seas 2 to 3 feet.
Numerous showers and scattered thunderstorms.
.MONDAY NIGHT...South to southwest winds 10 to 15 knots. Seas
2 to 3 feet. Numerous showers and scattered thunderstorms.
.TUESDAY...Tropical storm conditions possible.
.TUESDAY NIGHT THROUGH WEDNESDAY NIGHT...Tropical storm
conditions possible.
.THURSDAY...Northwest to north winds 15 to 20 knots. Seas 4 to
6 feet, occasionally to 8 feet. Scattered showers and isolated
thunderstorms.
.THURSDAY NIGHT...North to northeast winds 15 to 20 knots. Seas
5 to 6 feet, occasionally to 8 feet. Scattered showers and
isolated thunderstorms.

$$

GMZ033-034-061000-
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-
1109 PM EDT Sat Oct 5 2024

.OVERNIGHT...East to southeast winds 5 to 10 knots. Seas around
1 foot. Wave Detail: East to southeast 1 foot at 3 seconds.
Isolated showers and thunderstorms early this evening, then
numerous showers and scattered thunderstorms.
.SUNDAY...Southeast to south winds near 10 knots. Seas 1 to 2
feet. Wave Detail: South 1 foot at 3 seconds. Numerous showers and
scattered thunderstorms.
.SUNDAY NIGHT...South to southwest winds near 10 knots. Seas 1 to
2 feet. Wave Detail: South 1 foot at 3 seconds. Numerous showers
and scattered thunderstorms.
.MONDAY...Southwest winds 10 to 15 knots. Seas 2 to 3 feet.
Numerous showers and scattered thunderstorms.
.MONDAY NIGHT...South to southwest winds 10 to 15 knots. Seas 2
to 3 feet. Numerous showers and scattered thunderstorms.
.TUESDAY...Tropical storm conditions possible.
.TUESDAY NIGHT AND WEDNESDAY...Hurricane conditions possible.
.WEDNESDAY NIGHT...Tropical storm conditions possible.
.THURSDAY...Northwest to north winds 15 to 20 knots. Seas 4 to
6 feet, occasionally to 8 feet. Scattered showers and isolated
thunderstorms.
.THURSDAY NIGHT...North to northeast winds 15 to 20 knots. Seas
4 to 6 feet, occasionally to 8 feet. Scattered showers and
isolated thunderstorms.

$$