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FZUS52 KMFL 210521
CWFMFL

Coastal Waters Forecast for Florida
National Weather Service Miami FL
120 AM EDT Thu Aug 21 2025

Atlantic coastal waters from Jupiter Inlet to Ocean Reef out to
60 nm and Gulf coastal waters from East Cape Sable to Chokoloskee
out 20 nm and Chokoloskee to Bonita Beach out 60 nm...including the
waters of Biscayne Bay and Lake Okeechobee.

Seas are provided as a range of the average height of the highest
1/3 of the waves...along with the occasional height of the average
highest 10 percent of the waves.

AMZ600-GMZ606-211800-
120 AM EDT Thu Aug 21 2025

.Synopsis for Jupiter Inlet to Ocean Reef FL out to 60 nm and for
East Cape Sable to Bonita Beach FL out to 60 nm...

Increasing northeasterly swell from Hurricane Erin will result in
hazardous seas for the near and offshore Palm Beach waters through
late tonight. Scattered showers and thunderstorms may affect the
local waters each day through the weekend. Any showers or
thunderstorms are capable of producing brief periods of rough seas
and gusty winds.

Gulf Stream Hazards: Waves of 6-8 ft possible through late tonight
across the Palm Beach portion of the Gulf Stream.

The approximate location of the west wall of the Gulf Stream as of
Aug 21, 2025.

  1 nautical miles north northeast of Fowey Rocks.
  7 nautical miles east of Port Everglades.
  3 nautical miles east northeast of Lake Worth.
  6 nautical miles east northeast of Jupiter Inlet.

This data courtesy of the Naval Oceanographic Office.

$$

AMZ650-670-211800-
Coastal waters from Jupiter Inlet to Deerfield Beach FL out 20 NM-
Waters from Jupiter Inlet to Deerfield Beach FL from 20 to 60 NM-
120 AM EDT Thu Aug 21 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING...

.TODAY...W winds around 10 kt, becoming SW late. Seas 4 to 6 ft,
occasionally to 8 ft. Wave Detail: NE 4 ft at 11 seconds and W 3 ft
at 7 seconds. Intracoastal waters light chop. A chance of showers
and tstms.
.TONIGHT...SW winds around 10 kt. Seas 4 to 6 ft, occasionally to
8 ft. Wave Detail: NE 5 ft at 11 seconds and W 3 ft at 7 seconds.
Intracoastal waters light chop. A chance of showers and tstms.
.FRI...W winds 5 to 10 kt, becoming SW in the afternoon. Seas 3 to
5 ft, occasionally to 6 ft. Wave Detail: NE 5 ft at 11 seconds and W
3 ft at 8 seconds. Intracoastal waters light chop. A chance of
showers and tstms in the morning, then showers and tstms likely in
the afternoon.
.FRI NIGHT...SW winds 5 to 10 kt. Seas 3 to 5 ft, occasionally to
6 ft. Wave Detail: NE 4 ft at 12 seconds and W 3 ft at 8 seconds.
Intracoastal waters light chop. Showers and tstms likely, mainly in
the evening.
.SAT AND SAT NIGHT...SW winds 5 to 10 kt. Seas 3 to 5 ft,
occasionally to 6 ft. Wave Detail: NE 4 ft at 13 seconds and NW 2 ft
at 8 seconds. Intracoastal waters light chop. Showers and tstms
likely.
.SUN...SW winds around 10 kt. Seas 3 to 5 ft, occasionally to 6 ft.
Wave Detail: NE 4 ft at 12 seconds and W 2 ft at 8 seconds.
Intracoastal waters light chop. A chance of showers and tstms in the
morning, then showers and tstms likely through the night. A chance
of showers and tstms after midnight.
.MON...SW winds around 10 kt, becoming 5 to 10 kt. Seas 2 to 4 ft,
occasionally to 5 ft. Intracoastal waters light chop. A chance of
showers and tstms.

Winds and seas higher in and near tstms.

$$

AMZ651-671-211800-
Coastal waters from Deerfield Beach to Ocean Reef FL out 20 NM-
Waters from Deerfield Beach to Ocean Reef FL from 20 to 60 NM
excluding the territorial waters of Bahamas-
120 AM EDT Thu Aug 21 2025

.TODAY...SW winds around 10 kt. Seas 2 to 4 ft, occasionally to
5 ft. Wave Detail: SW 3 ft at 7 seconds and N 2 ft at 7 seconds.
Intracoastal waters light chop. A chance of showers and tstms.
.TONIGHT...SW winds around 10 kt. Seas 2 to 4 ft, occasionally to
5 ft. Wave Detail: SW 3 ft at 8 seconds and N 2 ft at 7 seconds.
Intracoastal waters light chop. A chance of showers and tstms.
.FRI...SW winds 5 to 10 kt. Seas 2 to 4 ft, occasionally to 5 ft.
Wave Detail: W 3 ft at 9 seconds and NE 2 ft at 7 seconds.
Intracoastal waters light chop. A chance of showers and tstms.
.FRI NIGHT...SW winds 5 to 10 kt. Seas 2 to 4 ft, occasionally to
5 ft. Wave Detail: W 3 ft at 9 seconds and NE 2 ft at 3 seconds.
Intracoastal waters light chop. A chance of showers and tstms.
.SAT AND SAT NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave
Detail: NW 3 ft at 9 seconds. Intracoastal waters light chop. A
chance of showers and tstms.
.SUN THROUGH MON...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail:
SW 2 ft at 8 seconds. Intracoastal waters light chop. A chance of
showers and tstms.

Winds and seas higher in and near tstms.

$$

GMZ656-657-676-211800-
Coastal waters from Chokoloskee to Bonita Beach FL out 20 NM-
Coastal waters from East Cape Sable to Chokoloskee FL out 20 NM-
Waters from Chokoloskee to Bonita Beach FL from 20 to 60 NM-
120 AM EDT Thu Aug 21 2025

.TODAY...W winds 5 to 10 kt. Seas less than 2 ft or less. Wave
Detail: W 1 foot at 3 seconds. Bay and inland waters light chop. A
chance of showers and tstms.
.TONIGHT...SW winds 5 to 10 kt. Seas less than 2 ft or less. Wave
Detail: W 1 foot at 3 seconds. Bay and inland waters light chop. A
chance of showers and tstms after midnight.
.FRI...SW winds 5 to 10 kt. Seas less than 2 ft or less. Wave
Detail: SW 1 foot at 3 seconds. Bay and inland waters light chop. A
chance of showers and tstms.
.FRI NIGHT...W winds 5 to 10 kt. Seas less than 2 ft or less. Wave
Detail: W 1 foot at 4 seconds. Bay and inland waters light chop. A
chance of showers and tstms.
.SAT AND SAT NIGHT...W winds 5 to 10 kt. Seas less than 2 ft or
less. Wave Detail: W 1 foot at 4 seconds. Bay and inland waters
light chop. A chance of showers and tstms.
.SUN THROUGH MON...W winds 5 to 10 kt. Seas around 2 ft. Wave
Detail: W 1 foot at 4 seconds. Bay and inland waters light chop. A
chance of showers and tstms.

Winds and seas higher in and near tstms.

$$

AMZ610-211800-
Lake Okeechobee-
120 AM EDT Thu Aug 21 2025

.TODAY...W winds 5 to 10 kt. Lake waters light chop. A chance of
showers and tstms early this afternoon. Showers and tstms likely
late.
.TONIGHT...SW winds 5 to 10 kt. Lake waters light chop. A chance of
showers and tstms in the evening.
.FRI...SW winds 5 to 10 kt. Lake waters light chop. A chance of
showers in the morning, then showers and tstms likely in the
afternoon.
.FRI NIGHT...SW winds around 5 kt. Lake waters smooth. Showers and
tstms likely in the evening.
.SAT AND SAT NIGHT...SW winds 5 to 10 kt. Lake waters light chop.
Showers and tstms likely.
.SUN...SW winds 5 to 10 kt. Lake waters light chop. A chance of
showers and tstms in the morning, then showers and tstms likely
through the night.
.MON...SW winds 5 to 10 kt. Lake waters light chop. A chance of
showers and tstms.
.MON NIGHT...W winds 5 to 10 kt. Lake waters light chop.

Winds and waves higher in and near tstms.

$$

AMZ630-211800-
Biscayne Bay-
120 AM EDT Thu Aug 21 2025

.TODAY...W winds 5 to 10 kt, becoming SW this afternoon. Light chop.
A chance of showers and tstms this morning, then showers and tstms
likely this afternoon.
.TONIGHT...SW winds 5 to 10 kt. Light chop. A chance of showers and
tstms in the evening.
.FRI...SW winds 5 to 10 kt. Light chop. A chance of showers. A
chance of tstms in the afternoon.
.FRI NIGHT...W winds 5 to 10 kt. Light chop. A chance of showers and
tstms.
.SAT AND SAT NIGHT...SW winds 5 to 10 kt. Light chop. A chance of
showers and tstms.
.SUN THROUGH MON...W winds 5 to 10 kt. Light chop. A chance of
showers and tstms.

Winds and waves higher in and near tstms.

$$