078
FZUS52 KKEY 200219
CWFKEY

Coastal Waters Forecast for the Florida Keys
National Weather Service Key West FL
1019 PM EDT Sun May 19 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.

GMZ005-200900-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
1019 PM EDT Sun May 19 2024

.SYNOPSIS...The western extent of a low-level ridge axis that
extends west-northwest has begun to loosen its grip across the
Florida Keys. At the same time a frontal boundary is sliding south
across the Florida Peninsula, which has shifted breezes from the
northwest. These breezes will briefly go light and variable
overnight before becoming south to southwest by Monday morning.
Lastly, there may be a break in the rain-free conditions tonight
through Tuesday, followed by variable breezes turning to the east
Wednesday through Thursday.

The Approximate Shoreward Edge of the Gulf Stream as of May 15,
2024...

49 NM South of Dry Tortugas Light...on Loggerhead Key.
32 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
24 NM South of Sand Key Light...off Key West.
27 NM South of Looe Key...off Big Pine Key.
29 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.

Gulf Stream Information Courtesy of the National Weather Service in
Key West.

$$

GMZ031-200900-
Florida Bay including Barnes Sound, Blackwater Sound, and
Buttonwood Sound-
1019 PM EDT Sun May 19 2024

.OVERNIGHT...West to northwest winds near 10 knots, becoming
south to southwest 5 to 10 knots. Bay waters a light chop,
becoming smooth to a light chop. Scattered showers and isolated
thunderstorms.
.MONDAY...Southwest to west winds 5 to 10 knots, becoming west and
increasing to near 10 knots. Bay waters smooth to a light chop,
becoming a light chop. Scattered showers and isolated
thunderstorms.
.MONDAY NIGHT...West to northwest winds 10 to 15 knots, becoming
northwest to north and decreasing to 5 to 10 knots after
midnight. Bay waters a light to moderate chop, becoming smooth to
a light chop. Scattered showers and isolated thunderstorms.
.TUESDAY...North to northeast winds near 5 knots, becoming
variable in the afternoon. Bay waters smooth. Scattered showers
and isolated thunderstorms.
.TUESDAY NIGHT...Light and variable winds, becoming northeast to
east near 5 knots. Bay waters smooth. Isolated showers and
thunderstorms.
.WEDNESDAY...Northeast to east winds 5 to 10 knots, becoming east
and increasing to near 10 knots. Bay waters smooth to a light
chop, becoming a light chop. Scattered showers and isolated
thunderstorms.
.WEDNESDAY NIGHT...East winds near 10 knots, increasing to 10 to
15 knots. Bay waters a light chop, becoming a light to moderate
chop. Isolated showers and thunderstorms.
.THURSDAY...Northeast to east winds near 10 knots, becoming east
and increasing to 10 to 15 knots. Bay waters a light chop,
becoming a light to moderate chop. Isolated showers and
thunderstorms.
.THURSDAY NIGHT...East winds 10 to 15 knots, decreasing to near 10
knots. Bay waters a light to moderate chop, becoming a light
chop. Isolated showers and thunderstorms.
.FRIDAY...East winds 5 to 10 knots, becoming east to southeast.
Bay waters smooth to a light chop. Isolated showers and
thunderstorms.
.FRIDAY NIGHT...East to southeast winds near 10 knots. Bay waters
a light chop. Isolated showers and thunderstorms.

$$

GMZ032-035-200900-
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-
1019 PM EDT Sun May 19 2024

.OVERNIGHT...Northwest winds near 10 knots, becoming south to
southwest 5 to 10 knots. Seas 1 foot or less. Nearshore waters a
light chop, becoming smooth to a light chop. Scattered showers
and isolated thunderstorms.
.MONDAY...Southwest to west winds 5 to 10 knots, becoming west to
northwest and increasing to near 10 knots. Seas 1 foot or less,
building to around 1 foot. Nearshore waters smooth to a light
chop, becoming a light chop. Scattered showers and isolated
thunderstorms.
.MONDAY NIGHT...Northwest winds 10 to 15 knots, becoming
northwest to north and decreasing to 5 to 10 knots after
midnight. Seas 1 to 2 feet, subsiding to around 1 foot. Nearshore
waters a light to moderate chop, becoming smooth to a light chop.
Scattered showers and isolated thunderstorms.
.TUESDAY...North to northeast winds near 5 knots, becoming west
to northwest in the afternoon. Seas 1 foot or less. Nearshore
waters smooth. Scattered showers and isolated thunderstorms.
.TUESDAY NIGHT...West to northwest winds near 5 knots, becoming
northeast to east and increasing to 5 to 10 knots after midnight.
Seas 1 foot or less. Nearshore waters smooth, becoming smooth to
a light chop. Isolated showers and thunderstorms.
.WEDNESDAY...East winds 5 to 10 knots. Seas 1 foot or less.
Nearshore waters smooth to a light chop. Isolated showers and
thunderstorms.
.WEDNESDAY NIGHT...East winds near 10 knots, increasing to 10 to
15 knots. Seas 1 foot or less, building to around 1 foot, except
building to 1 to 2 feet west of the Marquesas Keys. Nearshore
waters a light chop, becoming a light to moderate chop. Isolated
showers and thunderstorms.
.THURSDAY...East winds near 10 knots. Seas around 1 foot.
Nearshore waters a light chop. Isolated showers and
thunderstorms.
.THURSDAY NIGHT...East winds 10 to 15 knots, becoming east to
southeast and decreasing to near 10 knots. Seas around 1 foot,
except 1 to 2 feet west of the Marquesas Keys. Nearshore waters a
light to moderate chop, becoming a light chop. Isolated showers
and thunderstorms.
.FRIDAY...East to southeast winds 5 to 10 knots. Seas around 1
foot. Nearshore waters smooth to a light chop. Isolated showers
and thunderstorms.
.FRIDAY NIGHT...East to southeast winds near 10 knots. Seas
around 1 foot. Nearshore waters a light chop. Isolated showers
and thunderstorms.

$$

GMZ042>044-200900-
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-
1019 PM EDT Sun May 19 2024

.OVERNIGHT...Northwest winds near 10 knots, becoming south to
southwest 5 to 10 knots. Seas around 1 foot. Nearshore waters a
light chop, becoming smooth to a light chop. Scattered showers
and isolated thunderstorms.
.MONDAY...Southwest to west winds 5 to 10 knots, becoming west to
northwest and increasing to near 10 knots. Seas around 1 foot.
Nearshore waters smooth to a light chop, becoming a light chop.
Scattered showers and isolated thunderstorms.
.MONDAY NIGHT...Northwest winds 10 to 15 knots, becoming
northwest to north and decreasing to 5 to 10 knots after
midnight. Seas 1 to 2 feet, subsiding to around 1 foot. Nearshore
waters a light to moderate chop, becoming smooth to a light chop.
Scattered showers and isolated thunderstorms.
.TUESDAY...North to northeast winds near 5 knots, becoming
variable. Seas 1 foot or less. Nearshore waters smooth. Scattered
showers and isolated thunderstorms.
.TUESDAY NIGHT...Variable winds near 5 knots, becoming northeast
to east and increasing to 5 to 10 knots. Seas 1 foot or less.
Nearshore waters smooth, becoming smooth to a light chop. Isolated
showers and thunderstorms.
.WEDNESDAY...Northeast to east winds 5 to 10 knots, increasing to
near 10 knots. Seas 1 foot or less, building to around 1 foot.
Nearshore waters smooth to a light chop, becoming a light chop.
Isolated showers and thunderstorms.
.WEDNESDAY NIGHT...East winds near 10 knots, increasing to 10 to
15 knots. Seas around 1 foot, building to 1 to 2 feet. Nearshore
waters a light chop, becoming a light to moderate chop. Isolated
showers and thunderstorms.
.THURSDAY...East winds near 10 knots, increasing to 10 to 15
knots. Seas 1 to 2 feet. Nearshore waters a light chop, becoming
a light to moderate chop. Isolated showers and thunderstorms.
.THURSDAY NIGHT...East winds 10 to 15 knots, becoming east to
southeast. Seas around 2 feet. Nearshore waters a light to
moderate chop. Isolated showers and thunderstorms.
.FRIDAY AND FRIDAY NIGHT...East to southeast winds near 10 knots.
Seas 1 to 2 feet. Nearshore waters a light chop. Isolated showers
and thunderstorms.

$$

GMZ052>055-072>075-200900-
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-
1019 PM EDT Sun May 19 2024

.OVERNIGHT...Variable winds 5 to 10 knots, becoming southeast to
south. Seas around 1 foot. Wave Detail: East 1 foot at 5 seconds
and northwest 1 foot at 3 seconds. Winds and seas higher in and
around scattered showers and thunderstorms.
.MONDAY...South to southwest winds 5 to 10 knots, becoming west
to northwest in the afternoon. Seas around 1 foot. Wave Detail:
Northwest 1 foot at 4 seconds and east to southeast 1 foot at 4
seconds. Scattered showers and isolated thunderstorms.
.MONDAY NIGHT...Northwest winds 5 to 10 knots. Seas around
1 foot. Wave Detail: Northwest 1 foot at 3 seconds. Scattered
showers and isolated thunderstorms.
.TUESDAY...Northwest to north winds near 5 knots, becoming
variable. Seas around 1 foot. Scattered showers and isolated
thunderstorms.
.TUESDAY NIGHT...Variable winds near 5 knots, becoming northeast
to east. Seas around 1 foot. Scattered showers and isolated
thunderstorms.
.WEDNESDAY...East winds 5 to 10 knots. Seas 1 to 2 feet. Isolated
showers and thunderstorms.
.WEDNESDAY NIGHT...Northeast to east winds near 10 knots,
increasing to 10 to 15 knots. Seas 1 to 2 feet, building to 1 to
3 feet. Isolated showers and thunderstorms.
.THURSDAY...East winds near 10 knots, becoming northeast to east
and increasing to 10 to 15 knots. Seas 1 to 3 feet. Isolated
showers and thunderstorms.
.THURSDAY NIGHT...Northeast to east winds 10 to 15 knots, becoming
east and decreasing to near 10 knots. Seas 2 to 3 feet. Isolated
showers and thunderstorms.
.FRIDAY...East winds 5 to 10 knots, becoming northeast to east and
increasing to near 10 knots. Seas around 2 feet. Isolated showers
and thunderstorms.
.FRIDAY NIGHT...Northeast to east winds 10 to 15 knots, becoming
east to southeast. Seas 2 to 3 feet. Isolated showers and
thunderstorms.

$$

GMZ033-034-200900-
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-
1019 PM EDT Sun May 19 2024

.OVERNIGHT...Northwest winds 5 to 10 knots, becoming south to
southwest near 5 knots. Seas 1 to 2 feet. Wave Detail:
Southwest to west 1 foot at 5 seconds. Scattered showers and
isolated thunderstorms.
.MONDAY...Southwest to west winds near 5 knots, becoming west to
northwest and increasing to near 10 knots in the afternoon. Seas
1 foot or less, building to 1 to 2 feet. Wave Detail: West to
northwest 1 foot at 5 seconds. Scattered showers and isolated
thunderstorms.
.MONDAY NIGHT...Northwest to north winds 10 to 15 knots, becoming
north and decreasing to 5 to 10 knots after midnight. Seas 1 to 3
feet, subsiding to 1 to 2 feet. Wave Detail: Northwest 2 feet at
4 seconds. Scattered showers and isolated thunderstorms.
.TUESDAY...North winds near 5 knots. Seas around 1 foot. Isolated
showers and thunderstorms.
.TUESDAY NIGHT...Northwest to north winds 5 to 10 knots, becoming
northeast after midnight. Seas around 1 foot. Isolated showers
and thunderstorms.
.WEDNESDAY...East winds 5 to 10 knots. Seas around 1 foot.
Isolated showers and thunderstorms.
.WEDNESDAY NIGHT...East winds 5 to 10 knots, becoming east to
southeast and increasing to 10 to 15 knots after midnight. Seas 1
to 2 feet. Isolated showers and thunderstorms.
.THURSDAY...East winds near 10 knots, decreasing to 5 to 10 knots.
Seas 1 to 2 feet. Isolated showers and thunderstorms.
.THURSDAY NIGHT...East winds 5 to 10 knots, becoming east to
southeast and increasing to 10 to 15 knots after midnight. Seas 1
to 2 feet. Isolated showers and thunderstorms.
.FRIDAY...East to southeast winds near 10 knots, decreasing to 5
to 10 knots. Seas 1 to 2 feet. Isolated showers and
thunderstorms.
.FRIDAY NIGHT...Southeast winds 5 to 10 knots, increasing to near
10 knots. Seas around 1 foot. Isolated showers and thunderstorms.

$$