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Coastal Waters Forecast for Florida
National Weather Service Miami FL
106 AM 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-GMZ606-181800-
106 AM 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 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.

$$

AMZ650-670-181800-
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-
106 AM EDT Mon Aug 18 2025

.TODAY...N winds around 5 kt, increasing to 5 to 10 kt this
afternoon. Seas less than 2 ft or less, then around 2 ft this
afternoon. Wave Detail: E 1 foot at 3 seconds and E 1 foot at
13 seconds, becoming NE 2 ft at 3 seconds and E 1 foot at
14 seconds. Intracoastal waters light chop. A slight chance of
showers and tstms this afternoon.
.TONIGHT...N winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: NE 2 ft
at 4 seconds and N 1 foot at 7 seconds. Intracoastal waters light
chop. A chance of showers and tstms.
.TUE...N winds 10 to 15 kt. Seas 2 to 4 ft, occasionally to 5 ft.
Wave Detail: NE 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 AND WED NIGHT...W 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 NE 4 ft at 12 seconds. Intracoastal waters light chop.
Showers and tstms likely.
.THU...W winds around 10 kt, becoming SW. Seas 5 to 7 ft,
occasionally to 9 ft. Wave Detail: NE 5 ft at 13 seconds and NW 3 ft
at 7 seconds. Intracoastal waters light chop. A chance of showers
and tstms.
.FRI...W winds 5 to 10 kt. Seas 4 to 6 ft, occasionally to 8 ft.
Intracoastal waters light chop. A chance of showers and tstms.
.FRI NIGHT...S winds 5 to 10 kt, becoming SW 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.

$$

AMZ651-671-181800-
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-
106 AM EDT Mon Aug 18 2025

.TODAY...N winds around 5 kt, becoming NE this afternoon. Seas less
than 2 ft or less. Wave Detail: E 1 foot at 2 seconds. Intracoastal
waters light chop. A slight chance of showers and tstms late.
.TONIGHT...N winds 5 to 10 kt. Seas around 2 ft. Wave Detail: NE
2 ft at 4 seconds. Intracoastal waters light chop. A chance of
showers and tstms.
.TUE...N winds 10 to 15 kt. Seas 2 to 4 ft, occasionally to 5 ft.
Wave Detail: N 3 ft at 4 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 AND WED NIGHT...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.
.THU THROUGH FRI...SW winds 10 to 15 kt. Seas 2 to 4 ft,
occasionally to 5 ft. Wave Detail: N 3 ft at 12 seconds and W 2 ft
at 3 seconds. Intracoastal waters light chop. A chance of showers
and tstms.

Winds and seas higher in and near tstms.

$$

GMZ656-657-676-181800-
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-
106 AM EDT Mon Aug 18 2025

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

Winds and seas higher in and near tstms.

$$

AMZ610-181800-
Lake Okeechobee-
106 AM EDT Mon Aug 18 2025

.TODAY...E winds around 5 kt, becoming NE around 5 kt this
afternoon. Lake waters smooth. A slight chance of showers and tstms
early this afternoon. A chance of showers and tstms late.
.TONIGHT...NE winds 5 to 10 kt, becoming N after midnight. Lake
waters light chop. Showers and tstms likely in the 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 AND WED NIGHT...NW winds 5 to 10 kt. Lake waters light chop. A
chance of showers and tstms.
.THU THROUGH FRI...W winds 5 to 10 kt. Lake waters light chop.
Showers and tstms likely.

Winds and waves higher in and near tstms.

$$

AMZ630-181800-
Biscayne Bay-
106 AM EDT Mon Aug 18 2025

.TODAY...NE winds around 5 kt. Smooth. A chance of showers and tstms
late.
.TONIGHT...NE winds around 5 kt, becoming NW after midnight. Light
chop. A chance of tstms in the evening. A chance of showers.
.TUE...NW winds 5 to 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...N winds 5 to 10 kt, becoming NW after midnight. Light
chop. Showers and tstms likely, mainly in the evening.
.WED AND WED NIGHT...W winds around 10 kt. Light chop. A chance of
showers and tstms.
.THU THROUGH FRI...W winds 5 to 10 kt. Light chop. A chance of
showers and tstms.

Winds and waves higher in and near tstms.

$$