Coastal Waters Forecast
Issued by NWS Miami, FL

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FZUS52 KMFL 122006
CWFMFL

Coastal Waters Forecast for Florida
National Weather Service Miami FL
406 PM EDT Wed Aug 12 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-GMZ606-130900-
406 PM EDT Wed Aug 12 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...

Gentle winds and low seas are expected through Thursday, then
increasing to moderate easterly winds Friday and Saturday as a
tropical wave moves across the local waters. Daily wind increases to
around 10-15 knots are expected in the seabreeze zone, as well as a
light chop. Showers and thunderstorms will remain fairly isolated
and mostly limited to the morning hours for the east coast and the
evening for the Gulf, except Friday night and Saturday when the
passage of the tropical wave will result in an increase in showers
and thunderstorms over all local waters.

Gulf Stream Hazards: None

The approximate location of the west wall of the Gulf Stream as of
Aug 10, 2026.

  6 nautical miles south southeast of Fowey Rocks.
 10 nautical miles northeast of Port Everglades.
  3 nautical miles east northeast of Lake Worth.
  6 nautical miles east southeast of Jupiter Inlet.

This data courtesy of the Naval Oceanographic Office.

$$

AMZ650-670-130900-
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 PM EDT Wed Aug 12 2026

.TONIGHT...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. A
slight chance of showers and tstms early this evening.
.THU...S winds around 5 kt. Seas less than 2 ft or less. Wave
Detail: SE 1 foot at 2 seconds. Intracoastal waters smooth.
.THU NIGHT...SE winds 5 to 10 kt. Seas less than 2 ft or less. Wave
Detail: SE 1 foot at 2 seconds. Intracoastal waters light chop.
.FRI...SE winds 5 to 10 kt. Seas less than 2 ft or less. Wave
Detail: SE 1 foot at 3 seconds. Intracoastal waters light chop.
.FRI NIGHT...SE winds 10 to 15 kt. Seas around 2 ft. Wave Detail: E
2 ft at 4 seconds. Intracoastal waters a moderate chop. A chance of
showers and tstms after midnight.
.SAT...SE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 2 ft
at 5 seconds. Intracoastal waters light chop. A chance of showers
and tstms early in the morning.
.SAT NIGHT...SE winds 5 to 10 kt. Seas around 2 ft. Intracoastal
waters light chop.
.SUN...SE winds 5 to 10 kt. Seas less than 2 ft or less.
Intracoastal waters light chop.
.SUN NIGHT...SE winds 5 to 10 kt. Seas less than 2 ft or less.
Intracoastal waters light chop.
.MON...S winds 5 to 10 kt. Seas less than 2 ft or less. Intracoastal
waters light chop.
.MON NIGHT...S winds 5 to 10 kt. Seas less than 2 ft or less.
Intracoastal waters light chop.

Winds and seas higher in and near tstms.

$$

AMZ651-671-130900-
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 PM EDT Wed Aug 12 2026

.TONIGHT...S winds around 5 kt. Seas less than 2 ft or less. Wave
Detail: SE 1 foot at 2 seconds. Intracoastal waters smooth.
.THU...SE winds around 5 kt. Seas less than 2 ft or less. Wave
Detail: SE 1 foot at 2 seconds. Intracoastal waters smooth.
.THU NIGHT...SE winds 5 to 10 kt, increasing to 10 to 15 kt after
midnight. Seas less than 2 ft or less, then around 2 ft after
midnight. Wave Detail: SE 1 foot at 3 seconds. Intracoastal waters a
moderate chop.
.FRI...E winds 5 to 10 kt. Seas around 2 ft in the morning, then
1 foot or less. Wave Detail: SE 1 foot at 4 seconds. Intracoastal
waters light chop. A chance of showers and tstms in the afternoon.
.FRI NIGHT...E winds 10 to 15 kt. Seas around 2 ft. Wave Detail: E
2 ft at 3 seconds. Intracoastal waters a moderate chop. A chance of
showers and tstms.
.SAT...SE winds 10 to 15 kt, becoming E 5 to 10 kt in the afternoon.
Seas around 2 ft. Wave Detail: SE 2 ft at 4 seconds. Intracoastal
waters a moderate chop. A chance of showers and tstms early in the
morning.
.SAT NIGHT...E winds 5 to 10 kt, becoming SE 10 to 15 kt after
midnight. Seas around 2 ft. Intracoastal waters a moderate chop.
.SUN...E winds 5 to 10 kt. Seas around 2 ft. Intracoastal waters
light chop.
.SUN NIGHT...E winds 5 to 10 kt. Seas around 2 ft. Intracoastal
waters light chop.
.MON...SE winds around 5 kt, increasing to 5 to 10 kt in the
afternoon. Seas less than 2 ft or less. Intracoastal waters light
chop.
.MON NIGHT...SE winds 5 to 10 kt. Seas less than 2 ft or less.
Intracoastal waters light chop.

Winds and seas higher in and near tstms.

$$

GMZ656-657-676-130900-
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 PM EDT Wed Aug 12 2026

.TONIGHT...N winds 5 to 10 kt, diminishing to around 5 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 early this evening, then a slight chance of showers and tstms
late this evening.
.THU...N winds around 5 kt. Seas less than 2 ft or less. Wave
Detail: N 1 foot at 3 seconds. Bay and inland waters smooth. A
chance of showers and tstms late.
.THU NIGHT...N winds 5 to 10 kt, becoming E 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 early in the
evening. A chance of showers and tstms late.
.FRI...E winds 5 to 10 kt, diminishing to around 5 kt in the
afternoon. Seas less than 2 ft or less. Wave Detail: SE 1 foot at
2 seconds and NW 1 foot at 4 seconds. Bay and inland waters light
chop. A chance of showers and tstms late.
.FRI NIGHT...E winds 5 to 10 kt. Seas less than 2 ft or less. Wave
Detail: NW 1 foot at 4 seconds. Bay and inland waters light chop. A
chance of showers and tstms.
.SAT...E winds 5 to 10 kt. Seas less than 2 ft or less. Wave Detail:
E 1 foot at 3 seconds. Bay and inland waters light chop. A chance of
tstms. Showers likely until late afternoon, then a chance of showers
late.
.SAT NIGHT...E winds 5 to 10 kt. Seas less than 2 ft or less. Bay
and inland waters light chop. A chance of showers and tstms early in
the evening.
.SUN...SE winds 5 to 10 kt. Seas less than 2 ft or less. Bay and
inland waters light chop.
.SUN NIGHT...S winds 5 to 10 kt, becoming E after midnight. Seas
less than 2 ft or less. Bay and inland waters light chop.
.MON...NE winds around 5 kt, becoming NW in the afternoon. Seas less
than 2 ft or less. Bay and inland waters light chop.
.MON NIGHT...N winds 5 to 10 kt. Seas less than 2 ft or less. Bay
and inland waters light chop.

Winds and seas higher in and near tstms.

$$

AMZ610-130900-
Lake Okeechobee-
406 PM EDT Wed Aug 12 2026

.TONIGHT...S winds 5 to 10 kt, becoming SW after midnight. Lake
waters light chop. A chance of showers and tstms early this evening,
then a slight chance of showers and tstms late this evening.
.THU...NW winds around 5 kt, becoming E in the afternoon. Lake
waters smooth.
.THU NIGHT...SE winds 5 to 10 kt. Lake waters light chop. A chance
of showers and tstms early in the evening.
.FRI...S winds around 5 kt, becoming E in the afternoon. Lake waters
light chop. A chance of showers and tstms in the afternoon.
.FRI NIGHT...E winds 10 to 15 kt, becoming SE 5 to 10 kt after
midnight. Lake waters a moderate chop. A chance of showers and tstms
early in the evening.
.SAT...SE winds around 5 kt. Lake waters smooth. Showers and tstms
likely in the afternoon.
.SAT NIGHT...SE winds 5 to 10 kt. Lake waters light chop. Showers
and tstms likely early in the evening.
.SUN...SE winds around 5 kt. Lake waters smooth.
.SUN NIGHT...SE winds 5 to 10 kt, becoming S after midnight. Lake
waters light chop.
.MON...W winds around 5 kt. Lake waters smooth. A chance of showers
and tstms in the afternoon.
.MON NIGHT...W 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.

$$

AMZ630-130900-
Biscayne Bay-
406 PM EDT Wed Aug 12 2026

.TONIGHT...S winds around 5 kt. Smooth. A chance of showers and
tstms early this evening.
.THU...S winds around 5 kt, becoming SE in the afternoon. Light
chop.
.THU NIGHT...SE winds 5 to 10 kt. Light chop.
.FRI...E winds 5 to 10 kt. Light chop.
.FRI NIGHT...E winds 10 to 15 kt. A moderate chop. A chance of
showers and tstms.
.SAT...SE winds around 10 kt. Light chop. A chance of showers and
tstms until late afternoon.
.SAT NIGHT...E winds 5 to 10 kt. Light chop.
.SUN...E winds 5 to 10 kt. Light chop.
.SUN NIGHT...E winds 5 to 10 kt. Light chop.
.MON...SE winds around 5 kt, increasing to 5 to 10 kt in the
afternoon. Light chop.
.MON NIGHT...S winds 5 to 10 kt. Light chop.

Winds and waves higher in and near tstms.

$$