HomeForecastsFlorida ForecastsPoint Charles, FL - Key Largo Coastal Forecast

Point Charles, FL - Key Largo Coastal Forecast

FZUS52 KKEY 202122
CWFKEY

Coastal Waters Forecast for the Florida Keys
National Weather Service Key West FL
422 PM EST Mon Jan 20 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.

GMZ005-210330-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
422 PM EST Mon Jan 20 2025

.SYNOPSIS...Fresh northeast breezes will prevail across the Keys
coastal waters through this evening. Breezes will slacken
somewhat late tonight through Tuesday evening, before another cold
front pushes through the area late Tuesday night into Wednesday
morning. This will bring another surge of strong north to
northeast winds. Breezes will slacken briefly late Wednesday
and Thursday, before a reinforcing cold front pushes through the
waters Thursday night, with freshened northeasterly winds expected
for Friday and Saturday.

The Approximate Shoreward Edge of the Gulf Stream as of January 18...

24 NM South of Dry Tortugas Light...on Loggerhead Key.
23 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
21 NM South of Sand Key Light...off Key West.
18 NM South of Looe Key...off Big Pine Key
20 NM South of Sombrero Key Light...off Marathon.
24 NM Southeast of Alligator Reef Light...off Islamorada.
11 NM Southeast of Molasses Reef Light...off Key Largo.
10 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 and
NASA SPoRT.

$$

GMZ031-210330-
Florida Bay including Barnes Sound, Blackwater Sound, and
Buttonwood Sound-
422 PM EST Mon Jan 20 2025

...SMALL CRAFT ADVISORY IN EFFECT...

.TONIGHT...Northeast to east winds 15 to 20 knots, becoming
northeast and increasing to near 20 knots, then decreasing to near
15 knots. Bay waters choppy, becoming rough, then becoming a
moderate chop. Scattered showers.
.TUESDAY...Northeast winds 10 to 15 knots, becoming northeast to
east and decreasing to near 10 knots. Bay waters a light to
moderate chop, becoming a light chop. Scattered showers.
.TUESDAY NIGHT...Northeast to east winds 5 to 10 knots, becoming
north to northeast and increasing to 15 to 20 knots. Bay waters
smooth to a light chop, becoming choppy. Scattered showers.
.WEDNESDAY...North to northeast winds near 20 knots. Bay waters
rough. Scattered showers.
.WEDNESDAY NIGHT...North to northeast winds near 20 knots,
becoming northeast and decreasing to near 15 knots. Bay waters
rough, becoming a moderate chop. Scattered showers.
.THURSDAY...Northeast winds 10 to 15 knots, becoming north to
northeast. Bay waters a light to moderate chop. Scattered
showers.
.THURSDAY NIGHT...Northwest to north winds near 15 knots. Bay
waters a moderate chop. Scattered showers.
.FRIDAY...Northwest to north winds 15 to 20 knots, increasing to
near 20 knots. Bay waters choppy, becoming rough. Isolated
showers.
.FRIDAY NIGHT...Northwest to north winds near 20 knots. Bay
waters rough.
.SATURDAY...North to northeast winds near 20 knots, becoming
northeast and decreasing to 15 to 20 knots. Bay waters rough,
becoming choppy.
.SATURDAY NIGHT...Northeast to east winds 15 to 20 knots. Bay
waters choppy.

$$

GMZ032-035-210330-
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-
422 PM EST Mon Jan 20 2025

...SMALL CRAFT ADVISORY IN EFFECT...

.TONIGHT...North to northeast winds 15 to 20 knots, becoming
northeast and increasing to near 20 knots, then decreasing to near
15 knots. Seas 2 to 4 feet, occasionally to 5 feet, except 5 to 6
feet, occasionally to 8 feet west of the Marquesas Keys.
Nearshore waters choppy, becoming rough, then becoming a moderate
chop. Scattered showers.
.TUESDAY...Northeast winds near 15 knots, becoming northeast to
east and decreasing to 10 to 15 knots. Seas 2 to 4 feet,
occasionally to 5 feet, subsiding to 1 to 3 feet. West of the
Marquesas Keys, seas 4 to 5 feet, occasionally to 6 feet,
subsiding to 3 to 4 feet, occasionally to 5 feet. Nearshore
waters a moderate chop, becoming a light to moderate chop.
Scattered showers.
.TUESDAY NIGHT...Northeast to east winds 5 to 10 knots, becoming
north to northeast and increasing to near 20 knots. Seas 1 to 3
feet, except building to 3 to 5 feet, occasionally to 5 feet west
of the Marquesas Keys. Nearshore waters smooth to a light chop,
becoming rough. Scattered showers.
.WEDNESDAY...North to northeast winds 20 to 25 knots, decreasing
to near 20 knots. Seas building to 3 to 5 feet, occasionally to 6
feet, except building to 6 to 8 feet, occasionally to 10 feet
west of the Marquesas Keys. Nearshore waters very rough, becoming
rough. Scattered showers.
.WEDNESDAY NIGHT...North to northeast winds near 20 knots,
decreasing to 15 to 20 knots. Seas 3 to 5 feet, occasionally to 6
feet. West of the Marquesas Keys, seas 5 to 7 feet, occasionally
to 9 feet, subsiding to 5 to 6 feet, occasionally to 8 feet west
of the Marquesas Keys. Nearshore waters rough, becoming choppy.
Scattered showers.
.THURSDAY...North to northeast 15 to 20 knots, becoming northwest
to north. 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.
.THURSDAY NIGHT...Northwest to north winds near 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 rough. Scattered showers.
.FRIDAY...Northwest to north winds near 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 rough.
Isolated showers.
.FRIDAY NIGHT...Northwest to north winds near 20 knots, becoming
north to northeast and increasing to 20 to 25 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,
becoming very rough.
.SATURDAY...North to northeast winds 20 to 25 knots, becoming
northeast and decreasing to 15 to 20 knots. Seas 3 to 5 feet,
occasionally to 6 feet. West of the Marquesas Keys, seas 5 to 7
feet, occasionally to 9 feet, subsiding to 4 to 6 feet,
occasionally to 8 feet. Nearshore waters very rough, becoming
choppy.
.SATURDAY NIGHT...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 the Marquesas Keys. Nearshore
waters choppy.

$$

GMZ042>044-210330-
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-
422 PM EST Mon Jan 20 2025

...SMALL CRAFT ADVISORY IN EFFECT...

.TONIGHT...North to northeast winds near 20 knots, decreasing to
15 to 20 knots. Seas 2 to 4 feet, except 4 to 5 feet,
occasionally to 6 feet west of Cosgrove Shoal Light. Nearshore
waters rough, becoming choppy. Scattered showers.
.TUESDAY...Northeast winds 15 to 20 knots, becoming northeast to
east and decreasing to 10 to 15 knots. Seas 2 to 3 feet, subsiding
to around 2 feet. West of Cosgrove Shoal Light, seas 3 to 5 feet,
occasionally to 6 feet, subsiding to 2 to 4 feet. Nearshore
waters choppy, becoming a light to moderate chop. Scattered
showers.
.TUESDAY NIGHT...Northeast to east winds 5 to 10 knots, becoming
north to northeast and increasing to near 20 knots. Seas 1 to 3
feet, except building to 3 to 4 feet, occasionally to 5 feet west
of Cosgrove Shoal Light. Nearshore waters smooth to a light chop,
becoming rough. Scattered showers.
.WEDNESDAY...North to northeast winds 20 to 25 knots, decreasing
to near 20 knots. Seas 2 to 3 feet, except building to 5 to 7
feet, occasionally to 9 feet west of Cosgrove Shoal Light.
Nearshore waters very rough, becoming rough. Scattered showers.
.WEDNESDAY NIGHT...Northeast winds near 20 knots, decreasing to 15
to 20 knots. Seas 2 to 3 feet, except 4 to 6 feet, occasionally
to 8 feet west of Cosgrove Shoal Light. Nearshore waters rough,
becoming choppy. Scattered showers.
.THURSDAY....North to northeast winds 15 to 20 knots, becoming
northwest to north. Seas 2 to 3 feet, except 3 to 5 feet,
occasionally to 6 feet west of Cosgrove Shoal Light. Nearshore
waters choppy. Scattered showers.
.THURSDAY NIGHT...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.
.FRIDAY...Northwest to north winds 15 to 20 knots, increasing to
near 20 knots. Seas 2 to 3 feet, except 4 to 5 feet, occasionally
to 6 feet west of Cosgrove Shoal Light. Nearshore waters choppy,
becoming rough. Isolated showers.
.FRIDAY NIGHT...Northwest to north winds 20 to 25 knots. Seas 2
to 3 feet, except building to 4 to 6 feet, occasionally to 8 feet
west of Cosgrove Shoal Light. Nearshore waters very rough.
.SATURDAY...North to northeast winds 20 to 25 knots, becoming
northeast and decreasing to near 20 knots. Seas 2 to 4 feet,
occasionally to 5 feet, except 4 to 6 feet, occasionally to 8 feet
west of Cosgrove Shoal Light. Nearshore waters very rough,
becoming rough.
.SATURDAY NIGHT...Northeast to east winds near 20 knots. Seas 2
to 4 feet, occasionally to 5 feet, except 4 to 6 feet,
occasionally to 8 feet west of Cosgrove Shoal Light. Nearshore
waters rough.

$$

GMZ052>055-072>075-210330-
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-
422 PM EST Mon Jan 20 2025

...SMALL CRAFT ADVISORY IN EFFECT...

.TONIGHT...Northeast winds near 20 knots, decreasing to 15 to 20
knots. Seas 4 to 7 feet, occasionally to 9 feet, subsiding to 4 to
6 feet, occasionally to 8 feet. Wave Detail: Northeast 5 feet at
6 seconds and west to northwest 4 feet at 8 seconds. Scattered
showers.
.TUESDAY...Northeast winds 15 to 20 knots, becoming northeast to
east and decreasing to 10 to 15 knots. Seas 4 to 6 feet,
occasionally to 8 feet, subsiding to 3 to 5 feet, occasionally to
6 feet. Wave Detail: Northeast to east 4 feet at 6 seconds and
west to northwest 3 feet at 8 seconds. Scattered showers.
.TUESDAY NIGHT...East winds near 10 knots, becoming north to
northeast and increasing to 15 to 20 knots. Seas 2 to 4 feet,
occasionally to 5 feet, building to 3 to 5 feet, occasionally to 6
feet. Wave Detail: East 3 feet at 6 seconds and northwest 2 feet
at 7 seconds. Scattered showers.
.WEDNESDAY...North to northeast winds 20 to 25 knots, becoming
northeast and decreasing to near 20 knots. Seas building to 5 to
7 feet, occasionally to 9 feet. Scattered showers.
.WEDNESDAY NIGHT...Northeast winds near 20 knots, decreasing to 15
to 20 knots. Seas 5 to 7 feet, occasionally to 9 feet. Scattered
showers.
.THURSDAY...Northeast winds 15 to 20 knots, becoming northwest to
north. Seas 4 to 6 feet, occasionally to 8 feet. Scattered
showers.
.THURSDAY NIGHT...Northwest to north winds 15 to 20 knots. Seas
4 to 6 feet, occasionally to 8 feet. Scattered showers.
.FRIDAY...Northwest to north winds 15 to 20 knots, increasing to
near 20 knots. Seas 4 to 6 feet, occasionally to 8 feet. Isolated
showers.
.FRIDAY NIGHT...North winds 20 to 25 knots. Seas 5 to 7 feet,
occasionally to 9 feet.
.SATURDAY...North to northeast winds 20 to 25 knots, decreasing
to near 20 knots. Seas 6 to 8 feet, occasionally to 10 feet.
.SATURDAY NIGHT...Northeast to east winds near 20 knots. Seas
5 to 7 feet, occasionally to 9 feet. Isolated showers.

$$

GMZ033-034-210330-
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-
422 PM EST Mon Jan 20 2025

...SMALL CRAFT ADVISORY IN EFFECT...

.TONIGHT...North to northeast winds near 20 knots, becoming
northeast and decreasing to 15 to 20 knots. Seas 5 to 7 feet,
occasionally to 9 feet, subsiding to 4 to 6 feet, occasionally to
8 feet. Wave Detail: Northwest 6 feet at 8 seconds and northeast
3 feet at 5 seconds. Scattered showers.
.TUESDAY...Northeast winds 15 to 20 knots, decreasing to near 15
knots in the afternoon. Seas subsiding to 3 to 5 feet,
occasionally to 6 feet. Wave Detail: North 4 feet at 6 seconds.
Scattered showers.
.TUESDAY NIGHT...Northeast to east winds 10 to 15 knots, becoming
north to northeast and increasing to 25 to 30 knots. Seas 2 to 4
feet, occasionally to 5 feet, building to 4 to 6 feet, occasionally
to 8 feet. Wave Detail: Northwest to north 3 feet at 6 seconds,
becoming north 6 feet at 6 seconds. Numerous showers.
.WEDNESDAY...North to northeast winds 25 to 30 knots, becoming
northeast and decreasing to near 20 knots. Seas building to 6 to
9 feet, occasionally to 11 feet. Scattered showers.
.WEDNESDAY NIGHT...North to northeast winds near 20 knots,
decreasing to 15 to 20 knots. Seas 5 to 7 feet, occasionally to 9
feet, subsiding to 4 to 6 feet, occasionally to 8 feet. Scattered
showers.
.THURSDAY...North to northeast winds 15 to 20 knots, becoming
northwest to north and increasing to near 20 knots. Seas 4 to 6
feet, occasionally to 8 feet. Scattered showers.
.THURSDAY NIGHT...Northwest to north winds near 20 knots. Seas 4
to 6 feet, occasionally to 8 feet. Scattered showers.
.FRIDAY...Northwest to north winds near 20 knots. Seas 4 to
6 feet, occasionally to 8 feet. Isolated showers.
.FRIDAY NIGHT...Northwest to north winds near 20 knots, becoming
north to northeast and increasing to 20 to 25 knots. Seas 5 to 7
feet, occasionally to 9 feet.
.SATURDAY...Northeast winds 20 to 25 knots, decreasing to 15 to
20 knots. Seas 5 to 7 feet, occasionally to 9 feet, subsiding to 4
to 6 feet, occasionally to 8 feet.
.SATURDAY NIGHT...Northeast to east winds 15 to 20 knots. Seas
3 to 5 feet, occasionally to 6 feet.

$$

BT


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