236
FZUS52 KKEY 242015
CWFKEY

Coastal Waters Forecast for the Florida Keys
National Weather Service Key West FL
415 PM EDT Sat May 24 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.

GMZ005-250815-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
415 PM EDT Sat May 24 2025

.SYNOPSIS...Light to gentle breezes this evening will freshen to
gentle to moderate across the Florida Keys coastal waters
overnight. High pressure will build over the northeastern CONUS,
allowing breezes to veer southeasterly. In response, shower and
thunderstorm chances will return to near normal values. Moderate
to fresh breezes are possible early next week.

The Approximate Shoreward Edge of the Gulf Stream as of May 23rd...

51 NM South of Dry Tortugas Light...on Loggerhead Key.
21 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
16 NM South of Sand Key Light...off Key West.
 8 NM South of Looe Key...off Big Pine Key.
 8 NM South of Sombrero Key Light...off Marathon.
 8 NM Southeast of Alligator Reef Light...off Islamorada.
 4 NM Southeast of Molasses Reef Light...off Key Largo.
 2 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 NASA SPoRT.

$$

GMZ031-250815-
Florida Bay including Barnes Sound, Blackwater Sound, and
Buttonwood Sound-
415 PM EDT Sat May 24 2025

.TONIGHT...East 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.
.SUNDAY THROUGH MONDAY...East to southeast winds 10 to 15 knots.
Bay waters a light to moderate chop. Scattered showers and
isolated thunderstorms.
.MONDAY NIGHT THROUGH TUESDAY...East to southeast winds 10 to 15
knots. Bay waters a light to moderate chop. Isolated showers and
thunderstorms.
.TUESDAY NIGHT...East to southeast winds 10 to 15 knots. Bay
waters a light to moderate chop. Isolated showers and
thunderstorms.
.WEDNESDAY AND WEDNESDAY NIGHT...East to southeast winds 10 to 15
knots. Bay waters a light to moderate chop. Scattered showers and
isolated thunderstorms.

$$

GMZ032-035-250815-
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-
415 PM EDT Sat May 24 2025

.TONIGHT...East winds near 10 knots, increasing to 10 to 15
knots. Seas less than 1 foot, building to around 1 foot.
Nearshore waters a light chop, becoming a light to moderate chop.
Scattered showers and isolated thunderstorms.
.SUNDAY...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.
.SUNDAY NIGHT...East to southeast 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 and isolated
thunderstorms.
.MONDAY...East to southeast 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 and
thunderstorms.
.MONDAY NIGHT...East to southeast 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 and thunderstorms.
.TUESDAY...East to southeast 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 and thunderstorms.
.TUESDAY NIGHT...East to southeast 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 and thunderstorms.
.WEDNESDAY...East to southeast 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 and
thunderstorms.
.WEDNESDAY NIGHT...East to southeast 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 and isolated
thunderstorms.

$$

GMZ042>044-250815-
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-
415 PM EDT Sat May 24 2025

.TONIGHT...East winds near 10 knots, increasing to 10 to 15
knots. Seas 1 to 2 feet, building to 1 to 3 feet. Nearshore
waters a light chop, becoming a light to moderate chop. Isolated
showers and thunderstorms.
.SUNDAY...East to southeast winds 10 to 15 knots. Seas 1 to
3 feet. Nearshore waters a light to moderate chop. Isolated
showers and thunderstorms.
.SUNDAY NIGHT...East to southeast winds near 15 knots. Seas 2 to
3 feet. Nearshore waters a moderate chop. Scattered showers and
isolated thunderstorms.
.MONDAY...East to southeast winds 10 to 15 knots. Seas 1 to
3 feet. Nearshore waters a light to moderate chop. Isolated
showers and thunderstorms.
.MONDAY NIGHT...East to southeast winds near 15 knots. Seas
2 to 3 feet. Nearshore waters a moderate chop. Isolated showers
and thunderstorms.
.TUESDAY...East to southeast winds 10 to 15 knots. Seas 1 to
3 feet. Nearshore waters a light to moderate chop. Isolated
showers and thunderstorms.
.TUESDAY NIGHT...East to southeast winds near 15 knots, increasing
to 15 to 20 knots. Seas building to 2 to 4 feet, occasionally to
5 feet. Nearshore waters a moderate chop, becoming choppy.
Isolated showers and thunderstorms.
.WEDNESDAY...East to southeast winds near 15 knots, decreasing to
10 to 15 knots. Seas 2 to 3 feet, subsiding to 1 to 3 feet.
Nearshore waters a moderate chop, becoming a light to moderate
chop. Isolated showers and thunderstorms.
.WEDNESDAY NIGHT...East to southeast winds 10 to 15 knots. Seas
1 to 3 feet. Nearshore waters a light to moderate chop. Isolated
showers and thunderstorms.

$$

GMZ052>055-072>075-250815-
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-
415 PM EDT Sat May 24 2025

.TONIGHT...East winds 10 to 15 knots. Seas 1 to 2 feet, building
to 2 to 3 feet. Wave Detail: East 3 feet at 4 seconds. Isolated
showers and thunderstorms.
.SUNDAY...East winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: East 3 feet at 5 seconds. Isolated showers and
thunderstorms.
.SUNDAY NIGHT...East to southeast winds near 15 knots. Seas 2 to
4 feet, occasionally to 5 feet. Scattered showers and isolated
thunderstorms.
.MONDAY...East to southeast winds 10 to 15 knots. Seas 2 to
3 feet. Isolated showers and thunderstorms.
.MONDAY NIGHT...East to southeast winds near 15 knots. Seas 2 to
4 feet, occasionally to 5 feet. Isolated showers and
thunderstorms.
.TUESDAY...East to southeast winds near 15 knots, decreasing to
10 to 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. Isolated
showers and thunderstorms.
.TUESDAY NIGHT...East to southeast winds increasing to 15 to 20
knots. Seas 3 to 5 feet, occasionally to 6 feet. Isolated showers
and thunderstorms.
.WEDNESDAY...East to southeast winds near 15 knots, decreasing to 10
to 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. Isolated
showers and thunderstorms.
.WEDNESDAY NIGHT...East to southeast winds near 15 knots. Seas 2
to 3 feet. Isolated showers and thunderstorms.

$$

GMZ033-034-250815-
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-
415 PM EDT Sat May 24 2025

.TONIGHT...Northeast to east winds 5 to 10 knots, becoming east
and increasing to 10 to 15 knots. Seas 1 to 2 feet. Wave Detail:
East to southeast 2 feet at 3 seconds and northwest to north 1
foot at 4 seconds. Scattered showers and isolated thunderstorms.
.SUNDAY...East to southeast winds near 10 knots. Seas 1 to 2
feet. Wave Detail: East to southeast 2 feet at 3 seconds. Isolated
showers and thunderstorms.
.SUNDAY NIGHT...East to southeast winds 10 to 15 knots. Seas
building to 2 to 3 feet. Scattered showers and isolated
thunderstorms.
.MONDAY...East to southeast winds 10 to 15 knots. Seas 2 to 3 feet.
Isolated showers and thunderstorms.
.MONDAY NIGHT AND TUESDAY...East to southeast winds 10 to 15
knots. Seas 2 to 3 feet. Isolated showers and thunderstorms.
.TUESDAY NIGHT...East to southeast winds 10 to 15 knots,
increasing to near 15 knots. Seas 2 to 3 feet, building to 2 to 4
feet. Isolated showers and thunderstorms.
.WEDNESDAY AND WEDNESDAY NIGHT...East to southeast winds 10 to 15
knots. Seas 2 to 3 feet. Isolated showers and thunderstorms.

$$