395
FZUS52 KKEY 042125
CWFKEY

Coastal Waters Forecast for the Florida Keys
National Weather Service Key West FL
425 PM EST Sat Jan 4 2025

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.

GMZ005-050330-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
425 PM EST Sat Jan 4 2025

.SYNOPSIS...Small Craft Advisories remain in effect for the
Straits of Florida waters. Moderate to fresh breezes will persist
for the overnight through Sunday, with the strongest winds
remaining across the southern waters. Breezes will clock around
over the weekend into early next week, as high pressure moves off
the eastern United States and across the southwestern North
Atlantic. This will also allow breezes to slacken through Monday.
Another cold frontal passage is expected Monday night to Tuesday,
prompting a second round of freshening breezes.


The Approximate Shoreward Edge of the Gulf Stream as of January 4...

51 NM South of Dry Tortugas Light...on Loggerhead Key.
17 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
 9 NM South of Sand Key Light...off Key West.
24 NM South of Looe Key...off Big Pine Key.
35 NM South of Sombrero Key Light...off Marathon.
23 NM Southeast of Alligator Reef Light...off Islamorada.
23 NM Southeast of Molasses Reef Light...off Key Largo.
17 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.

$$

GMZ031-050330-
Florida Bay including Barnes Sound, Blackwater Sound, and
Buttonwood Sound-
425 PM EST Sat Jan 4 2025

...SMALL CRAFT SHOULD EXERCISE CAUTION FOR INCREASING WINDS...

.TONIGHT...Northeast winds near 15 knots, increasing to 15 to 20
knots. Bay waters a moderate chop, becoming choppy.
.SUNDAY...Northeast to east winds 15 to 20 knots. Bay waters
choppy.
.SUNDAY NIGHT...East to southeast winds 15 to 20 knots, decreasing
to near 15 knots. Bay waters choppy, becoming a moderate chop.
.MONDAY...Southeast to south winds near 15 knots, becoming south
to southwest winds 10 to 15 knots. Bay waters a moderate chop,
becoming a light to moderate chop. Isolated showers.
.MONDAY NIGHT...Southwest winds 10 to 15 knots, becoming west to
northwest near 20 knots after midnight. Bay waters a light to
moderate chop, becoming rough. Isolated showers.
.TUESDAY...Northwest to north winds near 20 knots, decreasing to
15 to 20 knots. Bay waters rough, becoming choppy.
.TUESDAY NIGHT...North winds near 15 knots. Bay waters a moderate
chop.
.WEDNESDAY...Northwest to north winds 10 to 15 knots. Bay waters
a light to moderate chop.
.WEDNESDAY NIGHT...Northwest to north winds 10 to 15 knots,
increasing to 15 to 20 knots. Bay waters a light to moderate
chop, becoming choppy.
.THURSDAY...North winds decreasing to near 15 knots. Bay waters
becoming a moderate chop.
.THURSDAY NIGHT...North to northeast winds 10 to 15 knots. Bay
waters a light to moderate chop.

$$

GMZ032-035-050330-
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-
425 PM EST Sat Jan 4 2025

...SMALL CRAFT SHOULD EXERCISE CAUTION...

.TONIGHT...Northeast 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.
.SUNDAY...Northeast to east winds 15 to 20 knots. Seas 2 to 3
feet, except 4 to 5 feet, occasionally to 6 feet west of the
Marquesas Keys. Nearshore waters choppy.
.SUNDAY NIGHT...East to southeast winds 15 to 20 knots. Seas 2 to
3 feet, except 3 to 5 feet, occasionally to 6 feet west of the
Marquesas Keys. Nearshore waters choppy.
.MONDAY...Southeast to south winds near 15 knots, becoming south
to southwest 10 to 15 knots. Seas 1 to 2 feet, except 2 to 3 feet
west of the Marquesas Keys. Nearshore waters a moderate chop,
becoming a light to moderate chop. Isolated showers.
.MONDAY NIGHT...Southwest to west winds 10 to 15 knots, becoming
northwest near 20 knots after midnight. Seas 1 to 2 feet,
building to 2 to 4 feet, except building to 4 to 5, occasionally
to 6 feet west of the Marquesas Keys. Nearshore waters a light to
moderate chop, becoming rough. Isolated showers.
.TUESDAY...Northwest to north winds near 20 knots. Seas 3 to
5 feet, occasionally to 6 feet, except 5 to 7 feet, occasionally
to 9 feet west of the Marquesas Keys. Nearshore waters rough.
.TUESDAY NIGHT...North to northeast winds 15 to 20 knots,
decreasing to near 15 knots. Seas 3 to 5 feet, occasionally to 6
feet. West of the Marquesas Keys, seas 6 to 7 feet, occasionally
to 9 feet, subsiding to 4 to 5 feet, occasionally to 6 feet after
midnight. Nearshore waters choppy, becoming a moderate chop.
.WEDNESDAY...North winds 10 to 15 knots. Seas 2 to 4 feet,
occasionally to 5 feet. Nearshore waters a light to moderate
chop.
.WEDNESDAY NIGHT...Northwest to north winds near 15 knots,
increasing to 15 to 20 knots. Seas 2 to 4 feet, occasionally to 5
feet, except around 4 feet, occasionally to 5 feet west of the
Marquesas Keys. Nearshore waters a moderate chop, becoming
choppy.
.THURSDAY...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.
.THURSDAY NIGHT...North to northeast winds near 15 knots. Seas
2 to 3 feet. Nearshore waters a moderate chop.

$$

GMZ042>044-050330-
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-
425 PM EST Sat Jan 4 2025

...SMALL CRAFT SHOULD EXERCISE CAUTION...

.TONIGHT...Northeast to east 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 Cosgrove Shoal Light. Nearshore waters choppy.
.SUNDAY...East 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 Cosgrove Shoal Light. Nearshore waters choppy.
.SUNDAY NIGHT...Southeast winds 15 to 20 knots. Seas 3 to 5 feet,
occasionally to 6 feet. Nearshore waters choppy. Isolated
showers.
.MONDAY...Southeast to south winds near 15 knots, becoming south
to southwest 10 to 15 knots. Seas 2 to 4 feet, occasionally to 5
feet, subsiding to 1 to 3 feet. Nearshore waters a moderate chop,
becoming a light to moderate chop. Isolated showers.
.MONDAY NIGHT...Southwest to west winds 10 to 15 knots, becoming
northwest near 20 knots after midnight. Seas 1 to 2 feet, except
building to 2 to 4 feet, occasionally to 5 feet west of Cosgrove
Shoal Light. Nearshore waters a light to moderate chop, becoming
rough. Isolated showers.
.TUESDAY...Northwest to north winds near 20 knots, except
decreasing to 15 to 20 knots off the Upper Keys. Seas 2 to 3
feet, except 4 to 6 feet, occasionally to 8 feet west of Cosgrove
Shoal Light. Nearshore waters rough.
.TUESDAY NIGHT...North winds 15 to 20 knots, decreasing to near 15
knots. Seas 2 to 3 feet, except 4 to 6 feet, occasionally to 8
feet west of Cosgrove Shoal Light. Nearshore waters choppy,
becoming a moderate chop.
.WEDNESDAY...North winds 10 to 15 knots. Seas 1 to 2 feet, except
3 to 4 feet, occasionally to 5 feet west of Cosgrove Shoal Light.
Nearshore waters a light to moderate chop.
.WEDNESDAY NIGHT...Northwest to north winds near 15 knots,
increasing to 15 to 20 knots. Seas 1 to 2 feet, except 3 to 4
feet, occasionally to 5 feet west of Cosgrove Shoal Light.
Nearshore waters a moderate chop, becoming choppy.
.THURSDAY...North winds 15 to 20 knots. Seas 1 to 2 feet, except
around 4 feet, occasionally to 5 feet west of Cosgrove Shoal
Light. Nearshore waters choppy.
.THURSDAY NIGHT...North to northeast winds near 15 knots. Seas
1 to 2 feet, except 2 to 4 feet, occasionally to 5 feet west of
Cosgrove Shoal Light. Nearshore waters a moderate chop.

$$

GMZ052>055-072>075-050330-
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-
425 PM EST Sat Jan 4 2025

...SMALL CRAFT ADVISORY IN EFFECT...

.TONIGHT...Northeast to east winds near 20 knots. Seas 5 to
7 feet, occasionally to 9 feet. Wave Detail: Northeast to east
6 feet at 7 seconds.
.SUNDAY...East winds near 20 knots. Seas 5 to 7 feet,
occasionally to 9 feet. Wave Detail: East 6 feet at 7 seconds.
.SUNDAY NIGHT...Southeast winds decreasing to 15 to 20 knots.
Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: East to
southeast 6 feet at 6 seconds. Isolated showers.
.MONDAY...Southeast to south winds near 15 knots, becoming south
to southwest 10 to 15 knots. Seas 4 to 5 feet, subsiding to 2 to 3
feet, occasionally to 5 feet. Isolated showers.
.MONDAY NIGHT...Southwest to west winds 10 to 15 knots, becoming
west to northwest near 20 knots after midnight. Seas 2 to 3 feet,
building to 3 to 5 feet. Isolated showers.
.TUESDAY...Northwest to north winds 20 to 25 knots, decreasing to
near 20 knots. Seas 4 to 6 feet, occasionally to 8 feet. Isolated
showers.
.TUESDAY NIGHT...North winds 15 to 20 knots, decreasing to near 15
knots. Seas 4 to 6 feet, occasionally to 8 feet.
.WEDNESDAY...North winds 10 to 15 knots. Seas 3 to 5 feet,
occasionally to 6 feet.
.WEDNESDAY NIGHT...North winds near 15 knots, increasing to 15 to
20 knots. Seas 3 to 4 feet, occasionally to 5 feet.
.THURSDAY...North winds near 20 knots, decreasing to 15 to 20
knots. Seas 4 to 5 feet, occasionally to 6 feet.
.THURSDAY NIGHT...North to northeast winds decreasing to near 15
knots. Seas 3 to 5 feet, occasionally to 6 feet.

$$

GMZ033-034-050330-
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-
425 PM EST Sat Jan 4 2025

...SMALL CRAFT SHOULD EXERCISE CAUTION...

.TONIGHT...Northeast to east winds 15 to 20 knots. Seas 3 to
5 feet, occasionally to 6 feet. Wave Detail: North to northeast
4 feet at 6 seconds.
.SUNDAY...East winds 15 to 20 knots. Seas 3 to 5 feet,
occasionally to 6 feet. Wave Detail: Northeast to east 4 feet at
5 seconds and northwest to north 1 foot at 6 seconds.
.SUNDAY NIGHT...Southeast winds 15 to 20 knots, decreasing to near
15 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail:
East to southeast 4 feet at 5 seconds. Isolated showers.
.MONDAY...Southeast to south winds near 15 knots, becoming south
to southwest. Seas 2 to 4 feet, occasionally to 5 feet. Isolated
showers.
.MONDAY NIGHT...Southwest to west winds 10 to 15 knots, becoming
northwest 20 to 25 knots after midnight. Seas 2 to 3 feet,
building to 4 to 6 feet, occasionally to 7 feet. Isolated
showers.
.TUESDAY...Northwest to north winds 20 to 25 knots, decreasing to
near 20 knots. Seas 5 to 7 feet, occasionally to 9 feet.
.TUESDAY NIGHT...North winds 15 to 20 knots, decreasing to near 15
knots. Seas 5 to 7 feet, occasionally to 9 feet, subsiding to 4 to
5 feet.
.WEDNESDAY...North winds near 15 knots. Seas 3 to 5 feet,
occasionally to 6 feet.
.WEDNESDAY NIGHT...North winds 15 to 20 knots. Seas 3 to 4 feet,
occasionally to 5 feet.
.THURSDAY...North winds near 20 knots, decreasing to 15 to 20
knots. Seas 4 to 5 feet, occasionally to 6 feet, subsiding to 3 to
4 feet.
.THURSDAY NIGHT...Northeast winds decreasing to near 15 knots.
Seas 2 to 4 feet, occasionally to 5 feet.

$$