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FZUS52 KMFL 180806
CWFMFL

Coastal Waters Forecast for Florida
National Weather Service Miami FL
406 AM EDT Tue Aug 18 2026

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-GMZ606-182100-
406 AM EDT Tue Aug 18 2026

.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...

Moderate to fresh westerly winds are expected today across the Gulf
waters, with moderate southerly winds over the Atlantic.
Thunderstorms return to the forecast beginning mid week.

Gulf Stream Hazards: None

The approximate location of the west wall of the Gulf Stream as of
Aug 17, 2026.

 57 nautical miles north northeast of Fowey Rocks.
 25 nautical miles northeast of Port Everglades.
  9 nautical miles north northeast of Lake Worth.
  6 nautical miles east northeast of Jupiter Inlet.

This data courtesy of the Naval Oceanographic Office.

$$

AMZ650-670-182100-
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-
406 AM EDT Tue Aug 18 2026

.TODAY...NW winds 5 to 10 kt, becoming N this afternoon. Seas around
2 ft. Wave Detail: NW 2 ft at 3 seconds. Intracoastal waters light
chop.
.TONIGHT...S winds 5 to 10 kt, becoming W after midnight. Seas less
than 2 ft or less, then around 2 ft after midnight. Wave Detail: SW
1 foot at 3 seconds and N 1 foot at 5 seconds. Intracoastal waters
light chop.
.WED...NW winds 5 to 10 kt, becoming NE in the afternoon. Seas
around 2 ft. Wave Detail: N 2 ft at 5 seconds. Intracoastal waters
light chop.
.WED NIGHT...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: N
1 foot at 5 seconds. Intracoastal waters light chop.
.THU...S winds around 5 kt, increasing to 5 to 10 kt in the
afternoon. Seas less than 2 ft or less. Wave Detail: SW 1 foot at
4 seconds. Intracoastal waters light chop. A chance of showers and
tstms in the afternoon.
.THU NIGHT...S winds 5 to 10 kt. Seas less than 2 ft or less. Wave
Detail: S 1 foot at 4 seconds. Intracoastal waters light chop.
.FRI...S winds 5 to 10 kt. Seas less than 2 ft or less. Intracoastal
waters light chop. A chance of showers and tstms late.
.FRI NIGHT...S winds 10 to 15 kt. Seas less than 2 ft or less.
Intracoastal waters light chop.
.SAT...S winds 5 to 10 kt. Seas less than 2 ft or less. Intracoastal
waters light chop.
.SAT NIGHT...S winds 10 to 15 kt. Seas less than 2 ft or less.
Intracoastal waters light chop. A chance of showers and tstms late.

Winds and seas higher in and near tstms.

$$

AMZ651-671-182100-
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-
406 AM EDT Tue Aug 18 2026

.TODAY...W winds 5 to 10 kt. Seas less than 2 ft or less. Wave
Detail: NW 1 foot at 2 seconds. Intracoastal waters light chop.
.TONIGHT...SW winds 10 to 15 kt, becoming W 5 to 10 kt after
midnight. Seas less than 2 ft or less. Wave Detail: SW 1 foot at
2 seconds. Intracoastal waters light chop.
.WED...NW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: NW 2 ft
at 3 seconds. Intracoastal waters light chop.
.WED NIGHT...SW winds 5 to 10 kt. Seas less than 2 ft or less. Wave
Detail: SW 1 foot at 2 seconds and N 1 foot at 5 seconds.
Intracoastal waters light chop.
.THU...S winds 5 to 10 kt. Seas less than 2 ft or less. Wave Detail:
SW 1 foot at 3 seconds. Intracoastal waters light chop.
.THU NIGHT...S winds 5 to 10 kt. Seas less than 2 ft or less. Wave
Detail: S 1 foot at 2 seconds. Intracoastal waters light chop.
.FRI...S winds 5 to 10 kt. Seas less than 2 ft or less. Intracoastal
waters light chop.
.FRI NIGHT...SE winds 5 to 10 kt. Seas less than 2 ft or less.
Intracoastal waters light chop.
.SAT...S winds 5 to 10 kt. Seas less than 2 ft or less. Intracoastal
waters light chop.
.SAT NIGHT...SE winds 5 to 10 kt. Seas less than 2 ft or less.
Intracoastal waters light chop. A chance of showers and tstms late.

Winds and seas higher in and near tstms.

$$

GMZ656-657-676-182100-
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-
406 AM EDT Tue Aug 18 2026

...SMALL CRAFT SHOULD EXERCISE CAUTION...

.TODAY...NW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts
up to 20 kt this afternoon. Seas less than 2 ft or less. Wave
Detail: NW 1 foot at 3 seconds. Bay and inland waters a moderate
chop.
.TONIGHT...NW winds 10 to 15 kt with gusts up to 20 kt, diminishing
to 5 to 10 kt after midnight. Seas around 2 ft. Wave Detail: NW 2 ft
at 4 seconds. Bay and inland waters a moderate chop.
.WED...NW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up
to 20 kt in the afternoon. Seas around 2 ft. Wave Detail: NW 2 ft at
4 seconds. Bay and inland waters a moderate chop.
.WED NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt,
diminishing to 5 to 10 kt after midnight. Seas around 2 ft. Wave
Detail: NW 2 ft at 4 seconds. Bay and inland waters light chop. A
chance of showers and tstms.
.THU...NW winds around 5 kt, becoming W in the afternoon. Seas
around 2 ft. Wave Detail: NW 2 ft at 5 seconds. Bay and inland
waters light chop. A chance of showers and tstms until late
afternoon.
.THU NIGHT...W winds 5 to 10 kt, becoming SW after midnight. Seas
around 2 ft in the evening, then 1 foot or less. Wave Detail: NW
2 ft at 5 seconds. Bay and inland waters light chop.
.FRI...SW winds around 5 kt, increasing to 5 to 10 kt in the
afternoon. Seas less than 2 ft or less. Bay and inland waters light
chop.
.FRI NIGHT...SW winds 5 to 10 kt, becoming S after midnight. Seas
less than 2 ft or less. Bay and inland waters light chop.
.SAT...SW winds around 5 kt, increasing to 5 to 10 kt in the
afternoon. Seas less than 2 ft or less. Bay and inland waters light
chop.
.SAT NIGHT...W winds 5 to 10 kt, becoming S after midnight. Seas
less than 2 ft or less. Bay and inland waters light chop.

Winds and seas higher in and near tstms.

$$

AMZ610-182100-
Lake Okeechobee-
406 AM EDT Tue Aug 18 2026

.TODAY...W winds 5 to 10 kt. Lake waters light chop. A slight chance
of showers and tstms late.
.TONIGHT...W winds 5 to 10 kt. Lake waters light chop.
.WED...W winds 5 to 10 kt, diminishing to around 5 kt in the
afternoon. Lake waters light chop. Tstms likely with a chance of
showers late.
.WED NIGHT...W winds around 5 kt. Lake waters smooth. A chance of
showers and tstms early in the evening.
.THU...W winds around 5 kt. Lake waters smooth. A chance of showers
and tstms in the afternoon.
.THU NIGHT...SW winds around 5 kt. Lake waters smooth. A chance of
showers and tstms early in the evening.
.FRI...SW winds around 5 kt. Lake waters smooth. Showers and tstms
likely in the afternoon.
.FRI NIGHT...S winds around 5 kt, becoming SW after midnight. Lake
waters light chop. Showers and tstms likely early in the evening.
.SAT...SW winds around 5 kt. Lake waters smooth. A chance of showers
and tstms in the afternoon.
.SAT NIGHT...SW winds 5 to 10 kt. Lake waters light chop. A chance
of showers and tstms early in the evening.

Winds and waves higher in and near tstms.

$$

AMZ630-182100-
Biscayne Bay-
406 AM EDT Tue Aug 18 2026

.TODAY...NW winds around 5 kt, becoming S 10 to 15 kt this
afternoon. A moderate chop.
.TONIGHT...SW winds 10 to 15 kt, becoming NW 5 to 10 kt after
midnight. A moderate chop.
.WED...NW winds 5 to 10 kt, becoming SE 10 to 15 kt in the
afternoon. A moderate chop.
.WED NIGHT...SW winds 5 to 10 kt. Light chop. A chance of showers
and tstms early in the evening.
.THU...SW winds around 5 kt, becoming S in the afternoon. Light
chop. A chance of showers and tstms in the afternoon.
.THU NIGHT...S winds 5 to 10 kt. Light chop. A chance of showers and
tstms early in the evening.
.FRI...S winds 5 to 10 kt. Light chop. A chance of showers and tstms
in the afternoon.
.FRI NIGHT...S winds 5 to 10 kt. Light chop. A chance of showers and
tstms early in the evening.
.SAT...S winds around 5 kt, becoming SE in the afternoon. Light
chop. A chance of showers and tstms in the afternoon.
.SAT NIGHT...S winds 5 to 10 kt. Light chop. A chance of showers and
tstms early in the evening.

Winds and waves higher in and near tstms.

$$