FZUS52 KKEY 050321
CWFKEY
Coastal Waters Forecast for the Florida Keys
National Weather Service Key West FL
1021 PM EST Wed Mar 4 2026
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.
GMZ005-051530-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
1021 PM EST Wed Mar 4 2026
.SYNOPSIS...
A large and robust high remains centered over the central North
Atlantic. This will continue to promote a prolonged period of
moderate to fresh breezes across Florida Keys coastal waters
through the remainder of the week and into the weekend. Winds
will be strongest across the Florida Straits and weakest over the
cooler Gulf side waters.
The Approximate Shoreward Edge of the Gulf Stream as of March 1...
47 NM South of Dry Tortugas Light...on Loggerhead Key.
16 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
9 NM South of Sand Key Light...off Key West.
7 NM South of Looe Key...off Big Pine Key.
8 NM Southeast of Sombrero Key Light...off Marathon.
8 NM Southeast of Alligator Reef Light...off Islamorada.
7 NM Southeast of Molasses Reef Light...off Key Largo.
8 NM Southeast 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 and RTOFS.
$$
GMZ031-051530-
Florida Bay including Barnes Sound, Blackwater Sound, and
Buttonwood Sound-
1021 PM EST Wed Mar 4 2026
...SMALL CRAFT SHOULD EXERCISE CAUTION...
.OVERNIGHT...East winds 15 to 20 knots. Bay waters choppy.
Bay waters rough and winds higher in and around scattered showers
and isolated thunderstorms.
.THURSDAY...East winds near 15 knots. Bay waters a moderate chop.
Isolated showers and thunderstorms.
.THURSDAY NIGHT...East winds 15 to 20 knots. Bay waters choppy.
Isolated showers and thunderstorms.
.FRIDAY THROUGH SATURDAY...East winds 15 to 20 knots. Bay waters
choppy. Scattered showers and isolated thunderstorms.
.SATURDAY NIGHT AND SUNDAY...East winds 15 to 20 knots. Bay
waters choppy. Scattered showers and isolated thunderstorms.
.SUNDAY NIGHT...East winds near 15 knots. Bay waters a moderate
chop. Isolated showers and thunderstorms.
.MONDAY AND MONDAY NIGHT...East winds near 15 knots. Bay waters a
moderate chop. Isolated showers.
$$
GMZ032-035-051530-
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-
1021 PM EST Wed Mar 4 2026
...SMALL CRAFT SHOULD EXERCISE CAUTION...
.OVERNIGHT...East winds 15 to 20 knots. Seas 2 to 3 feet.
Nearshore waters choppy. Winds and seas higher in and around
isolated showers and thunderstorms.
.THURSDAY...East winds near 15 knots. Seas around 2 feet, except
2 to 4 feet, occasionally to 5 feet west of the Marquesas Keys.
Nearshore waters choppy. Isolated showers and thunderstorms.
.THURSDAY NIGHT AND FRIDAY...East winds 15 to 20 knots. Seas
around 2 feet, except 2 to 4 feet, occasionally to 5 feet west of
the Marquesas Keys. Nearshore waters choppy. Isolated showers and
thunderstorms.
.FRIDAY NIGHT AND SATURDAY...East winds 15 to 20 knots. Seas
around 2 feet, except 2 to 4 feet, occasionally to 5 feet west of
the Marquesas Keys. Nearshore waters choppy. Scattered showers
and isolated thunderstorms.
.SATURDAY NIGHT AND SUNDAY...East winds 15 to 20 knots. Seas
around 2 feet, except 2 to 4 feet, occasionally to 5 feet west of
the Marquesas Keys. Nearshore waters choppy. Scattered showers
and isolated thunderstorms.
.SUNDAY NIGHT...East 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.
.MONDAY AND MONDAY NIGHT...East 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.
$$
GMZ042>044-051530-
Hawk Channel from Ocean Reef to Craig Key out to the reef-
Hawk Channel from Craig Key to west end of Seven Mile Bridge out
to the reef-
Hawk Channel from west end of Seven Mile Bridge to Halfmoon Shoal
out to the reef-
1021 PM EST Wed Mar 4 2026
...SMALL CRAFT SHOULD EXERCISE CAUTION...
.OVERNIGHT...East winds 15 to 20 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Nearshore waters choppy. Winds and seas
higher in and around isolated showers and thunderstorms.
.THURSDAY...East winds 15 to 20 knots. Seas 3 to 5 feet,
occasionally to 6 feet. Nearshore waters choppy. Isolated showers
and thunderstorms.
.THURSDAY NIGHT...East winds 15 to 20 knots. Seas 3 to 5 feet,
occasionally to 6 feet. Nearshore waters choppy. Scattered showers
and isolated thunderstorms.
.FRIDAY...East winds 15 to 20 knots. Seas 3 to 5 feet,
occasionally to 6 feet. Nearshore waters choppy. Isolated showers
and thunderstorms.
.FRIDAY NIGHT AND SATURDAY...East winds 15 to 20 knots. Seas 3 to
5 feet, occasionally to 6 feet. Nearshore waters choppy. Scattered
showers and isolated thunderstorms.
.SATURDAY NIGHT AND SUNDAY...East winds 15 to 20 knots. Seas 3 to
5 feet, occasionally to 6 feet. Nearshore waters choppy.
Scattered showers and isolated thunderstorms.
.SUNDAY NIGHT...East winds near 15 knots. Seas 2 to 4 feet,
occasionally to 5 feet. Nearshore waters a moderate chop. Isolated
showers and thunderstorms.
.MONDAY AND MONDAY NIGHT...East winds near 15 knots. Seas 2 to 4
feet, occasionally to 5 feet. Nearshore waters a moderate chop.
Isolated showers.
$$
GMZ052>055-072>075-051530-
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-
1021 PM EST Wed Mar 4 2026
...SMALL CRAFT ADVISORY IN EFFECT...
.OVERNIGHT...East winds near 20 knots. Seas 4 to 7 feet,
occasionally to 9 feet. Wave Detail: East 6 feet at 6 seconds.
Winds and seas higher in and around scattered showers and
isolated thunderstorms.
.THURSDAY...East winds 15 to 20 knots. Seas 4 to 7 feet,
occasionally to 9 feet. Wave Detail: East 6 feet at 6 seconds.
Isolated showers and thunderstorms.
.THURSDAY NIGHT...East winds near 20 knots. Seas 4 to 7 feet,
occasionally to 9 feet. Wave Detail: East 6 feet at 6 seconds.
Scattered showers and isolated thunderstorms.
.FRIDAY...East winds 15 to 20 knots. Seas 4 to 7 feet,
occasionally to 9 feet. Scattered showers and isolated
thunderstorms.
.FRIDAY NIGHT...East winds near 20 knots. Seas 4 to 7 feet,
occasionally to 9 feet. Scattered showers and isolated
thunderstorms.
.SATURDAY...East winds 15 to 20 knots. Seas 4 to 7 feet,
occasionally to 9 feet. Scattered showers and isolated
thunderstorms.
.SATURDAY NIGHT...East winds near 20 knots. Seas 4 to 7 feet,
occasionally to 9 feet. Scattered showers and isolated
thunderstorms.
.SUNDAY...East winds 15 to 20 knots. Seas 4 to 7 feet,
occasionally to 9 feet. Scattered showers and isolated
thunderstorms.
.SUNDAY NIGHT...East winds 15 to 20 knots. Seas 4 to 7 feet,
occasionally to 7 feet. Isolated showers and thunderstorms.
.MONDAY...East winds 15 to 20 knots. Seas 4 to 6 feet,
occasionally to 8 feet. Scattered showers.
.MONDAY NIGHT...East winds 15 to 20 knots. Seas 4 to 6 feet,
occasionally to 8 feet. Isolated showers.
$$
GMZ033-034-051530-
Gulf of America from East Cape Sable to Chokoloskee 20 to 60 NM
out and beyond 5 fathoms-
Gulf of America including Dry Tortugas and Rebecca Shoal Channel-
1021 PM EST Wed Mar 4 2026
...SMALL CRAFT SHOULD EXERCISE CAUTION UNTIL WINDS DECREASE...
.OVERNIGHT...East winds 15 to 20 knots, becoming 10 to 15 knots
late. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: East
3 feet at 4 seconds. Isolated showers and thunderstorms.
.THURSDAY...East winds near 15 knots, decreasing to 10 to 15
knots. Seas 2 to 3 feet. Wave Detail: East 3 feet at 4 seconds.
Isolated showers and thunderstorms.
.THURSDAY NIGHT...East winds 10 to 15 knots, increasing to near 15
knots. Seas 2 to 3 feet. Wave Detail: East 3 feet at 4 seconds.
Isolated showers and thunderstorms.
.FRIDAY...East winds near 15 knots. Seas 2 to 4 feet,
occasionally to 5 feet. Isolated showers and thunderstorms.
.FRIDAY NIGHT...East winds 15 to 20 knots. Seas 2 to 4 feet,
occasionally to 5 feet. Isolated showers and thunderstorms.
.SATURDAY...East winds 15 to 20 knots, decreasing to near 15
knots. Seas 2 to 4 feet, occasionally to 5 feet. Isolated showers
and thunderstorms.
.SATURDAY NIGHT...East winds near 15 knots. Seas 2 to 4 feet,
occasionally to 5 feet. Isolated showers and thunderstorms.
.SUNDAY...East winds near 15 knots, decreasing to 10 to 15 knots.
Seas 2 to 4 feet, occasionally to 5 feet. Isolated showers and
thunderstorms.
.SUNDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet.
Isolated showers and thunderstorms.
.MONDAY...East winds 10 to 15 knots. Seas 2 to 3 feet. Isolated
showers.
.MONDAY NIGHT...East winds 10 to 15 knots, increasing to near 15
knots. Seas 2 to 4 feet, occasionally to 5 feet. Isolated showers.
$$
CWFKEY
Coastal Waters Forecast for the Florida Keys
National Weather Service Key West FL
1021 PM EST Wed Mar 4 2026
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.
GMZ005-051530-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
1021 PM EST Wed Mar 4 2026
.SYNOPSIS...
A large and robust high remains centered over the central North
Atlantic. This will continue to promote a prolonged period of
moderate to fresh breezes across Florida Keys coastal waters
through the remainder of the week and into the weekend. Winds
will be strongest across the Florida Straits and weakest over the
cooler Gulf side waters.
The Approximate Shoreward Edge of the Gulf Stream as of March 1...
47 NM South of Dry Tortugas Light...on Loggerhead Key.
16 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
9 NM South of Sand Key Light...off Key West.
7 NM South of Looe Key...off Big Pine Key.
8 NM Southeast of Sombrero Key Light...off Marathon.
8 NM Southeast of Alligator Reef Light...off Islamorada.
7 NM Southeast of Molasses Reef Light...off Key Largo.
8 NM Southeast 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 and RTOFS.
$$
GMZ031-051530-
Florida Bay including Barnes Sound, Blackwater Sound, and
Buttonwood Sound-
1021 PM EST Wed Mar 4 2026
...SMALL CRAFT SHOULD EXERCISE CAUTION...
.OVERNIGHT...East winds 15 to 20 knots. Bay waters choppy.
Bay waters rough and winds higher in and around scattered showers
and isolated thunderstorms.
.THURSDAY...East winds near 15 knots. Bay waters a moderate chop.
Isolated showers and thunderstorms.
.THURSDAY NIGHT...East winds 15 to 20 knots. Bay waters choppy.
Isolated showers and thunderstorms.
.FRIDAY THROUGH SATURDAY...East winds 15 to 20 knots. Bay waters
choppy. Scattered showers and isolated thunderstorms.
.SATURDAY NIGHT AND SUNDAY...East winds 15 to 20 knots. Bay
waters choppy. Scattered showers and isolated thunderstorms.
.SUNDAY NIGHT...East winds near 15 knots. Bay waters a moderate
chop. Isolated showers and thunderstorms.
.MONDAY AND MONDAY NIGHT...East winds near 15 knots. Bay waters a
moderate chop. Isolated showers.
$$
GMZ032-035-051530-
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-
1021 PM EST Wed Mar 4 2026
...SMALL CRAFT SHOULD EXERCISE CAUTION...
.OVERNIGHT...East winds 15 to 20 knots. Seas 2 to 3 feet.
Nearshore waters choppy. Winds and seas higher in and around
isolated showers and thunderstorms.
.THURSDAY...East winds near 15 knots. Seas around 2 feet, except
2 to 4 feet, occasionally to 5 feet west of the Marquesas Keys.
Nearshore waters choppy. Isolated showers and thunderstorms.
.THURSDAY NIGHT AND FRIDAY...East winds 15 to 20 knots. Seas
around 2 feet, except 2 to 4 feet, occasionally to 5 feet west of
the Marquesas Keys. Nearshore waters choppy. Isolated showers and
thunderstorms.
.FRIDAY NIGHT AND SATURDAY...East winds 15 to 20 knots. Seas
around 2 feet, except 2 to 4 feet, occasionally to 5 feet west of
the Marquesas Keys. Nearshore waters choppy. Scattered showers
and isolated thunderstorms.
.SATURDAY NIGHT AND SUNDAY...East winds 15 to 20 knots. Seas
around 2 feet, except 2 to 4 feet, occasionally to 5 feet west of
the Marquesas Keys. Nearshore waters choppy. Scattered showers
and isolated thunderstorms.
.SUNDAY NIGHT...East 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.
.MONDAY AND MONDAY NIGHT...East 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.
$$
GMZ042>044-051530-
Hawk Channel from Ocean Reef to Craig Key out to the reef-
Hawk Channel from Craig Key to west end of Seven Mile Bridge out
to the reef-
Hawk Channel from west end of Seven Mile Bridge to Halfmoon Shoal
out to the reef-
1021 PM EST Wed Mar 4 2026
...SMALL CRAFT SHOULD EXERCISE CAUTION...
.OVERNIGHT...East winds 15 to 20 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Nearshore waters choppy. Winds and seas
higher in and around isolated showers and thunderstorms.
.THURSDAY...East winds 15 to 20 knots. Seas 3 to 5 feet,
occasionally to 6 feet. Nearshore waters choppy. Isolated showers
and thunderstorms.
.THURSDAY NIGHT...East winds 15 to 20 knots. Seas 3 to 5 feet,
occasionally to 6 feet. Nearshore waters choppy. Scattered showers
and isolated thunderstorms.
.FRIDAY...East winds 15 to 20 knots. Seas 3 to 5 feet,
occasionally to 6 feet. Nearshore waters choppy. Isolated showers
and thunderstorms.
.FRIDAY NIGHT AND SATURDAY...East winds 15 to 20 knots. Seas 3 to
5 feet, occasionally to 6 feet. Nearshore waters choppy. Scattered
showers and isolated thunderstorms.
.SATURDAY NIGHT AND SUNDAY...East winds 15 to 20 knots. Seas 3 to
5 feet, occasionally to 6 feet. Nearshore waters choppy.
Scattered showers and isolated thunderstorms.
.SUNDAY NIGHT...East winds near 15 knots. Seas 2 to 4 feet,
occasionally to 5 feet. Nearshore waters a moderate chop. Isolated
showers and thunderstorms.
.MONDAY AND MONDAY NIGHT...East winds near 15 knots. Seas 2 to 4
feet, occasionally to 5 feet. Nearshore waters a moderate chop.
Isolated showers.
$$
GMZ052>055-072>075-051530-
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-
1021 PM EST Wed Mar 4 2026
...SMALL CRAFT ADVISORY IN EFFECT...
.OVERNIGHT...East winds near 20 knots. Seas 4 to 7 feet,
occasionally to 9 feet. Wave Detail: East 6 feet at 6 seconds.
Winds and seas higher in and around scattered showers and
isolated thunderstorms.
.THURSDAY...East winds 15 to 20 knots. Seas 4 to 7 feet,
occasionally to 9 feet. Wave Detail: East 6 feet at 6 seconds.
Isolated showers and thunderstorms.
.THURSDAY NIGHT...East winds near 20 knots. Seas 4 to 7 feet,
occasionally to 9 feet. Wave Detail: East 6 feet at 6 seconds.
Scattered showers and isolated thunderstorms.
.FRIDAY...East winds 15 to 20 knots. Seas 4 to 7 feet,
occasionally to 9 feet. Scattered showers and isolated
thunderstorms.
.FRIDAY NIGHT...East winds near 20 knots. Seas 4 to 7 feet,
occasionally to 9 feet. Scattered showers and isolated
thunderstorms.
.SATURDAY...East winds 15 to 20 knots. Seas 4 to 7 feet,
occasionally to 9 feet. Scattered showers and isolated
thunderstorms.
.SATURDAY NIGHT...East winds near 20 knots. Seas 4 to 7 feet,
occasionally to 9 feet. Scattered showers and isolated
thunderstorms.
.SUNDAY...East winds 15 to 20 knots. Seas 4 to 7 feet,
occasionally to 9 feet. Scattered showers and isolated
thunderstorms.
.SUNDAY NIGHT...East winds 15 to 20 knots. Seas 4 to 7 feet,
occasionally to 7 feet. Isolated showers and thunderstorms.
.MONDAY...East winds 15 to 20 knots. Seas 4 to 6 feet,
occasionally to 8 feet. Scattered showers.
.MONDAY NIGHT...East winds 15 to 20 knots. Seas 4 to 6 feet,
occasionally to 8 feet. Isolated showers.
$$
GMZ033-034-051530-
Gulf of America from East Cape Sable to Chokoloskee 20 to 60 NM
out and beyond 5 fathoms-
Gulf of America including Dry Tortugas and Rebecca Shoal Channel-
1021 PM EST Wed Mar 4 2026
...SMALL CRAFT SHOULD EXERCISE CAUTION UNTIL WINDS DECREASE...
.OVERNIGHT...East winds 15 to 20 knots, becoming 10 to 15 knots
late. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: East
3 feet at 4 seconds. Isolated showers and thunderstorms.
.THURSDAY...East winds near 15 knots, decreasing to 10 to 15
knots. Seas 2 to 3 feet. Wave Detail: East 3 feet at 4 seconds.
Isolated showers and thunderstorms.
.THURSDAY NIGHT...East winds 10 to 15 knots, increasing to near 15
knots. Seas 2 to 3 feet. Wave Detail: East 3 feet at 4 seconds.
Isolated showers and thunderstorms.
.FRIDAY...East winds near 15 knots. Seas 2 to 4 feet,
occasionally to 5 feet. Isolated showers and thunderstorms.
.FRIDAY NIGHT...East winds 15 to 20 knots. Seas 2 to 4 feet,
occasionally to 5 feet. Isolated showers and thunderstorms.
.SATURDAY...East winds 15 to 20 knots, decreasing to near 15
knots. Seas 2 to 4 feet, occasionally to 5 feet. Isolated showers
and thunderstorms.
.SATURDAY NIGHT...East winds near 15 knots. Seas 2 to 4 feet,
occasionally to 5 feet. Isolated showers and thunderstorms.
.SUNDAY...East winds near 15 knots, decreasing to 10 to 15 knots.
Seas 2 to 4 feet, occasionally to 5 feet. Isolated showers and
thunderstorms.
.SUNDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet.
Isolated showers and thunderstorms.
.MONDAY...East winds 10 to 15 knots. Seas 2 to 3 feet. Isolated
showers.
.MONDAY NIGHT...East winds 10 to 15 knots, increasing to near 15
knots. Seas 2 to 4 feet, occasionally to 5 feet. Isolated showers.
$$