571
FZUS52 KKEY 222022
CWFKEY

Coastal Waters Forecast for the Florida Keys
National Weather Service Key West FL
422 PM EDT Thu May 22 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.

GMZ005-230830-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
422 PM EDT Thu May 22 2025

.SYNOPSIS...Winds across the Florida Keys coastal waters will
remain light and generally variable through Friday. Rain and
thunder chances will gradually increase by Saturday, along with
freshening east to southeast breezes. These conditions will then
last through early next week.

The Approximate Shoreward Edge of the Gulf Stream as of May
10th...

22 NM South of Dry Tortugas Light...on Loggerhead Key.
 8 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
 6 NM South of Sand Key Light...off Key West.
 5 NM South of Looe Key...off Big Pine Key.
 7 NM South of Sombrero Key Light...off Marathon.
12 NM Southeast of Alligator Reef Light...off Islamorada.
 8 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 Naval Oceanographic
Office.

$$

GMZ031-230830-
Florida Bay including Barnes Sound, Blackwater Sound, and
Buttonwood Sound-
422 PM EDT Thu May 22 2025

.TONIGHT...Variable winds 5 to 10 knots. Bay waters smooth.
Isolated showers and thunderstorms.
.FRIDAY...Southwest winds 5 to 10 knots. Bay waters smooth to a
light chop. Scattered showers and isolated thunderstorms.
.FRIDAY NIGHT...West winds 5 to 10 knots, becoming east to
southeast after midnight. Bay waters smooth to a light chop.
Isolated showers and thunderstorms.
.SATURDAY...East to southeast winds 5 to 10 knots, increasing to
near 10 knots. Bay waters smooth to a light chop, becoming a light
chop. Isolated showers and thunderstorms.
.SATURDAY NIGHT...East winds near 10 knots. Bay waters a light
chop. Isolated showers and thunderstorms.
.SUNDAY...East to southeast winds 10 to 15 knots. Bay waters a
light to moderate chop. Isolated showers and thunderstorms.
.SUNDAY NIGHT...East winds increasing to near 15 knots. Bay
waters becoming a moderate chop. Isolated showers and
thunderstorms.
.MONDAY AND MONDAY NIGHT...East to southeast winds near 15 knots.
Bay waters a moderate chop. Isolated showers and thunderstorms.
.TUESDAY...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.

$$

GMZ032-035-230830-
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 EDT Thu May 22 2025

.TONIGHT...West to northwest winds near 10 knots, becoming north
5 to 10 knots. Seas 1 foot or less. Nearshore waters a light chop,
becoming smooth to a light chop. Isolated showers and
thunderstorms.
.FRIDAY...Variable winds near 5 knots, becoming west to northwest
5 to 10 knots in the afternoon. Seas 1 foot or less. Nearshore
waters smooth, becoming smooth to a light chop. Isolated showers
and thunderstorms.
.FRIDAY NIGHT...Northwest to north winds 5 to 10 knots, becoming
northeast to east. Seas 1 foot or less. Nearshore waters smooth
to a light chop. Isolated showers and thunderstorms.
.SATURDAY...East to southeast winds increasing to near 10 knots.
Seas building to around 1 foot. Nearshore waters becoming a light
chop. Isolated showers and thunderstorms.
.SATURDAY NIGHT...Northeast to east winds 10 to 15 knots. Seas
around 1 foot, except building to 1 to 2 feet west of the
Marquesas Keys. Nearshore waters a light to moderate chop.
Isolated showers and 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 THROUGH 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...Southeast winds near 15 knots, becoming east to
southeast 10 to 15 knots. Seas 1 to 2 feet. Nearshore waters a
moderate chop, becoming a light to moderate chop. Isolated
showers and thunderstorms.
.TUESDAY NIGHT...East to southeast winds 10 to 15 knots. Seas
2 to 3 feet. Nearshore waters a light to moderate chop. Isolated
showers and thunderstorms.

$$

GMZ042>044-230830-
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 EDT Thu May 22 2025

.TONIGHT...Variable winds near 10 knots, becoming southeast 5 to
10 knots after midnight. Seas 1 foot or less. Nearshore waters a
light chop, becoming smooth to a light chop. Isolated showers and
thunderstorms.
.FRIDAY...Variable winds near 5 knots. Off the Upper Keys, winds
south to southwest 5 to 10 knots. Seas 1 foot or less. Nearshore
waters smooth, except smooth to a light chop off the Upper Keys.
Isolated showers and thunderstorms.
.FRIDAY NIGHT...North to northeast winds 5 to 10 knots, becoming
northeast to east. Seas around 1 foot. Nearshore waters smooth to
a light chop. Isolated showers and thunderstorms.
.SATURDAY...East to southeast winds increasing to 10 knots. Seas
around 1 foot. Nearshore waters becoming a light chop. Isolated
showers and thunderstorms.
.SATURDAY NIGHT...East winds 10 to 15 knots. Seas 1 to 2 feet,
building to around 2 feet. Nearshore waters a light to moderate
chop. Isolated showers and thunderstorms.
.SUNDAY...East to southeast winds 10 to 15 knots. Seas around 2
feet. Nearshore waters a light to moderate chop. Isolated showers
and thunderstorms.
.SUNDAY NIGHT AND SUNDAY NIGHT...East to southeast winds near 15
knots. Seas 2 to 3 feet. Nearshore waters a moderate chop.
Isolated showers and thunderstorms.
.MONDAY NIGHT...East to southeast winds 15 to 20 knots. Seas 2 to
4 feet, occasionally to 5 feet. Nearshore waters choppy. Isolated
showers and thunderstorms.
.TUESDAY...Southeast winds 10 to 15 knots. Seas 2 to 4 feet,
occasionally to 5 feet. Nearshore waters a light to moderate
chop. Isolated showers and thunderstorms.
.TUESDAY NIGHT...East to southeast winds 10 to 15 knots. Seas
2 to 3 feet. Nearshore waters a light to moderate chop. Isolated
showers and thunderstorms.

$$

GMZ052>055-072>075-230830-
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 EDT Thu May 22 2025

.TONIGHT...North to northeast winds 5 to 10 knots, becoming east
to southeast after midnight. Seas around 1 foot. Wave Detail:
Northeast 1 foot at 3 seconds. Isolated showers and thunderstorms.
.FRIDAY...Southeast winds 5 to 10 knots, becoming northeast in
the afternoon. Seas around 1 foot. Wave Detail: East to southeast
1 foot at 3 seconds. Isolated showers and thunderstorms.
.FRIDAY NIGHT...East winds 5 to 10 knots. Seas building to 1 to 2
feet. Isolated showers and thunderstorms.
.SATURDAY...East winds near 10 knots. Seas 1 to 2 feet. Isolated
showers and thunderstorms.
.SATURDAY NIGHT...East winds 10 to 15 knots. Seas building to 2
to 3 feet. Isolated showers and thunderstorms.
.SUNDAY...East winds 10 to 15 knots. Seas 2 to 3 feet. Isolated
showers and thunderstorms.
.SUNDAY NIGHT AND MONDAY...East winds near 15 knots. Seas 3 to 4
feet, occasionally to 5 feet. Isolated showers and thunderstorms.
.MONDAY NIGHT...East to southeast winds 15 to 20 knots. Seas 3 to
5 feet, occasionally to 6 feet. Isolated showers and
thunderstorms.
.TUESDAY...East to southeast winds near 15 knots, decreasing to 10
to 15 knots. Seas 3 to 5 feet, occasionally to 6 feet, subsiding
to 2 to 4 feet. Isolated showers and thunderstorms.
.TUESDAY NIGHT...East to southeast winds 10 to 15 knots. Seas
2 to 4 feet, occasionally to 5 feet. Isolated showers and
thunderstorms.

$$

GMZ033-034-230830-
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-
422 PM EDT Thu May 22 2025

.TONIGHT...Northwest to north winds 5 to 10 knots, becoming
variable. Seas around 1 foot. Wave Detail: Northwest 1 foot at 3
seconds.
.FRIDAY...Northwest to north winds near 5 knots. Seas around
1 foot. Wave Detail: Northwest to north 1 foot at 4 seconds.
Isolated showers and thunderstorms.
.FRIDAY NIGHT...North to northeast winds 5 to 10 knots. Seas
around 1 foot. Isolated showers and thunderstorms.
.SATURDAY...East to southeast winds 5 to 10 knots. Seas around
1 foot. Isolated showers and thunderstorms.
.SATURDAY NIGHT...Northeast to east winds 5 to 10 knots, becoming
east 10 to 15 knots. Seas 1 to 2 feet. Isolated showers and
thunderstorms.
.SUNDAY...East to southeast winds near 10 knots knots. Seas 1 to
2 feet. Isolated showers and thunderstorms.
.SUNDAY NIGHT...East winds 10 to 15 knots. Seas building to 2 to 3
feet. Isolated showers and 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. Isolated showers and thunderstorms.
.TUESDAY...Southeast winds near 15 knots, decreasing to 10 to 15
knots. Seas 2 to 3 feet. Isolated showers and thunderstorms.
.TUESDAY NIGHT...East to southeast winds 10 to 15 knots. Seas
2 to 3 feet. Isolated showers and thunderstorms.

$$