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FZUS52 KMFL 181721
CWFMFL

Coastal Waters Forecast for Florida
National Weather Service Miami FL
121 PM EDT Mon Aug 18 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-GMZ606-190600-
121 PM EDT Mon Aug 18 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...

As Hurricane Erin passes east of the Florida peninsula early this
week, flow across local waters will be veering northerly through the
day today and will remain northerly through Tuesday. Surface winds
become northwesterly by the middle of the week and westerly towards
the end of the week as Erin continues northward.

Northeasterly swell from this system may increase wave heights
across the northern Gulf stream waters towards the middle of this
week, however current guidance indicates that conditions should
remain below hazardous levels for most of the local waters at this
time. Scattered showers and thunderstorms may affect the local
waters each day this week. Any showers or thunderstorms are capable
of producing brief periods of rough seas and gusty winds.

Gulf Stream Hazards: None.

The approximate location of the west wall of the Gulf Stream as of
Aug 16, 2025.

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

This data courtesy of the Naval Oceanographic Office.

$$

AMZ650-670-190600-
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-
121 PM EDT Mon Aug 18 2025

.TONIGHT...NE winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: NE
3 ft at 4 seconds and E 1 foot at 16 seconds. Intracoastal waters
light chop. A chance of showers and tstms this evening, then a
slight chance of showers and tstms after midnight. A chance of
showers and tstms late.
.TUE...N winds 10 to 15 kt. Seas 3 to 5 ft, occasionally to 6 ft.
Wave Detail: N 4 ft at 5 seconds and E 2 ft at 15 seconds.
Intracoastal waters light chop. A chance of showers and tstms.
.TUE NIGHT...N winds 10 to 15 kt. Seas 3 to 5 ft, occasionally to
6 ft. Wave Detail: N 4 ft at 6 seconds and E 2 ft at 15 seconds.
Intracoastal waters light chop. A chance of showers and tstms.
.WED...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft,
occasionally to 6 ft. Wave Detail: N 4 ft at 6 seconds and E 1 foot
at 12 seconds. Intracoastal waters light chop. A chance of tstms. A
chance of showers in the morning, then showers likely in the
afternoon.
.WED NIGHT...NW winds around 10 kt. Seas 4 to 6 ft, occasionally to
8 ft. Wave Detail: N 3 ft at 7 seconds. Intracoastal waters light
chop. A chance of tstms. Showers likely, mainly in the evening.
.THU AND THU NIGHT...W winds 5 to 10 kt. Seas 5 to 7 ft,
occasionally to 9 ft. Wave Detail: NE 5 ft at 12 seconds and NW 3 ft
at 8 seconds. Intracoastal waters light chop. Showers and tstms
likely.
.FRI...W winds 5 to 10 kt, becoming S in the evening, then becoming
SW after midnight. Seas 4 to 6 ft, occasionally to 8 ft.
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.
.SAT...NW winds around 5 kt, becoming NE in the afternoon, then
becoming SE in the evening, becoming S after midnight. Seas 3 to
5 ft, occasionally to 6 ft. Intracoastal waters light chop. A chance
of showers and tstms.

Winds and seas higher in and near tstms.

$$

AMZ651-671-190600-
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-
121 PM EDT Mon Aug 18 2025

.TONIGHT...N winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: NE 2 ft
at 3 seconds. Intracoastal waters light chop. A chance of showers
and tstms, mainly this evening.
.TUE...N winds 10 to 15 kt. Seas 2 to 4 ft, occasionally to 5 ft.
Wave Detail: N 3 ft at 5 seconds. Intracoastal waters light chop. A
chance of showers and tstms.
.TUE NIGHT...NW winds 10 to 15 kt. Seas 2 to 4 ft, occasionally to
5 ft. Wave Detail: N 3 ft at 6 seconds. Intracoastal waters light
chop. A chance of showers and tstms.
.WED...W winds 10 to 15 kt. Seas 2 to 4 ft, occasionally to 5 ft.
Wave Detail: N 3 ft at 6 seconds. Intracoastal waters light chop. A
chance of showers and tstms.
.WED NIGHT THROUGH THU NIGHT...W winds 10 to 15 kt. Seas 2 to 4 ft,
occasionally to 5 ft. Wave Detail: N 3 ft at 7 seconds and N 3 ft at
11 seconds. Intracoastal waters light chop. A chance of showers and
tstms.
.FRI THROUGH SAT...S winds 5 to 10 kt. Seas 2 to 4 ft, occasionally
to 5 ft. Wave Detail: N 3 ft at 12 seconds and W 1 foot at
3 seconds. Intracoastal waters light chop. A chance of showers and
tstms.

Winds and seas higher in and near tstms.

$$

GMZ656-657-676-190600-
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-
121 PM EDT Mon Aug 18 2025

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

Winds and seas higher in and near tstms.

$$

AMZ610-190600-
Lake Okeechobee-
121 PM EDT Mon Aug 18 2025

.TONIGHT...NE winds 5 to 10 kt. Lake waters light chop. A chance of
showers and tstms early this evening, then a slight chance of
showers and tstms late this evening.
.TUE...N winds 5 to 10 kt. Lake waters light chop. A chance of
showers and tstms in the afternoon.
.TUE NIGHT...N winds 5 to 10 kt. Lake waters light chop. A chance of
showers and tstms in the evening.
.WED...NW winds 5 to 10 kt. Lake waters light chop. A chance of
showers and tstms in the afternoon.
.WED NIGHT...NW winds 5 to 10 kt. Lake waters light chop. A chance
of showers and tstms in the evening.
.THU AND THU NIGHT...W winds 5 to 10 kt. Lake waters light chop.
Showers and tstms likely.
.FRI THROUGH SAT...S winds around 5 kt. Lake waters smooth. Showers
and tstms likely.

Winds and waves higher in and near tstms.

$$

AMZ630-190600-
Biscayne Bay-
121 PM EDT Mon Aug 18 2025

.TONIGHT...NE winds 5 to 10 kt, becoming N late this evening and
overnight. Light chop. A chance of showers and tstms this evening.
.TUE...N winds around 10 kt, becoming NE in the afternoon. Light
chop. A chance of showers and tstms in the morning, then showers and
tstms likely in the afternoon.
.TUE NIGHT...NW winds 5 to 10 kt. Light chop. Showers and tstms
likely, mainly in the evening.
.WED...W winds around 10 kt. Light chop. A chance of showers and
tstms in the afternoon.
.WED NIGHT...W winds around 10 kt. Light chop. A chance of showers
and tstms.
.THU AND THU NIGHT...W winds 5 to 10 kt. Light chop. A chance of
showers and tstms.
.FRI THROUGH SAT...S winds around 5 kt. Smooth. A chance of showers
and tstms.

Winds and waves higher in and near tstms.

$$