Coastal Waters Forecast
Issued by NWS Brownsville, TX

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698
FZUS54 KBRO 181409
CWFBRO

Coastal Waters Forecast for the Lower Texas Coast
National Weather Service Brownsville TX
909 AM CDT Thu Jul 18 2024

Lower Texas coastal waters from Baffin Bay to the mouth of the
Rio Grande out 60 NM.

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.

GMZ100-190315-
909 AM CDT Thu Jul 18 2024

.SYNOPSIS...High pressure persisting over the northern Gulf of
Mexico through the weekend, continues to support moderate or
weaker winds and slight seas. Showers and thunderstorm chances
increase Friday and the weekend.

$$

GMZ130-132-135-190315-
Laguna Madre from the Port of Brownsville to the Arroyo Colorado-
Laguna Madre from the Arroyo Colorado To 5 NM north of Port
Mansfield TX-
Laguna Madre from 5 nm north of Port Mansfield to Baffin Bay TX-
909 AM CDT Thu Jul 18 2024

.REST OF TODAY...South winds around 5 knots, becoming east this
afternoon. Light chop on the bay.
.TONIGHT...Southeast winds around 10 knots, becoming south after
midnight. Light chop on the bay.
.FRIDAY...Southwest winds around 5 knots, becoming east in the
afternoon. Smooth on the bay, increasing to light chop in the
afternoon. A slight chance of showers late in the afternoon.
.FRIDAY NIGHT...Southeast winds around 10 knots, becoming south
after midnight. Light chop on the bay.
.SATURDAY...South winds around 5 knots, becoming southeast in the
afternoon. Smooth on the bay, increasing to light chop in the
afternoon.
.SATURDAY NIGHT...Southeast winds around 10 knots, becoming south
after midnight. Light chop on the bay.
.SUNDAY...South winds 5 to 10 knots, becoming southeast early in
the afternoon, then increasing to 10 to 15 knots late in the
afternoon. Light chop on the bay, increasing to a moderate chop
late in the afternoon. A slight chance of showers and
thunderstorms.
.SUNDAY NIGHT...Southeast winds 10 to 15 knots, becoming south
early in the morning. A moderate chop on the bay, diminishing to
light chop early in the morning. A slight chance of showers and
thunderstorms early in the evening.
.MONDAY...Southeast winds 10 to 15 knots. A moderate chop on the
bay. A slight chance of showers and thunderstorms until late
afternoon, then a chance of showers and thunderstorms late in the
afternoon.
.MONDAY NIGHT...Southeast winds 10 to 15 knots. A moderate chop
on the bay. A chance of showers and thunderstorms early in the
evening. A slight chance of showers and thunderstorms after
midnight.

Winds and waves higher in and near thunderstorms.

$$

GMZ150-155-190315-
Gulf waters from Port Mansfield to the Rio Grande out 20 nm-
Gulf waters from Baffin Bay to Port Mansfield out 20 nm-
909 AM CDT Thu Jul 18 2024

.REST OF TODAY...South winds around 5 knots, becoming east late
this afternoon. Seas 1 to 2 feet. Wave Detail: Southeast 1 foot
at 5 seconds.
.TONIGHT...Southeast winds 5 to 10 knots, becoming south after
midnight. Seas 1 to 2 feet. Wave Detail: Southeast 1 foot at
5 seconds.
.FRIDAY...Southwest winds 5 to 10 knots, becoming east early in
the afternoon, then increasing to 5 to 10 knots late in the
afternoon. Seas 1 to 2 feet. Wave Detail: Southeast 1 foot at
5 seconds. A slight chance of showers in the morning.
.FRIDAY NIGHT...Southeast winds 5 to 10 knots, becoming south
after midnight. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet
at 4 seconds.
.SATURDAY...South winds 5 to 10 knots, becoming southeast in the
afternoon. Seas 1 to 2 feet. Wave Detail: Southeast 1 foot at
5 seconds. A slight chance of showers and thunderstorms until
late afternoon.
.SATURDAY NIGHT...Southeast winds around 10 knots, becoming south
after midnight. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet
at 4 seconds.
.SUNDAY...South winds 5 to 10 knots, becoming southeast late in
the afternoon. Seas 2 to 3 feet. A slight chance of showers and
thunderstorms.
.SUNDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to 3 feet.
A slight chance of showers and thunderstorms early in the
evening. A slight chance of showers and thunderstorms after
midnight.
.MONDAY...Southeast winds 10 to 15 knots. Seas 2 to 3 feet. A
slight chance of thunderstorms. A chance of showers, mainly in
the morning.
.MONDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to 3 feet.
A slight chance of showers and thunderstorms early in the
evening. A slight chance of showers and thunderstorms after
midnight.

Winds and seas higher in and near thunderstorms.

$$

GMZ170-175-190315-
Gulf waters from Port Mansfield to the Rio Grande extending from
20 to 60 nm-
Gulf waters from Baffin Bay to Port Mansfield extending from
20 to 60 nm-
909 AM CDT Thu Jul 18 2024

.REST OF TODAY...Southwest winds around 5 knots, becoming east
around 5 knots late this afternoon. Seas 1 to 2 feet. Wave
Detail: Southeast 1 foot at 5 seconds.
.TONIGHT...Southeast winds 5 to 10 knots, becoming south after
midnight. Seas 1 to 2 feet. Wave Detail: Southeast 1 foot at
5 seconds.
.FRIDAY...Southwest winds 5 to 10 knots, becoming west late in
the morning, then becoming north early in the afternoon, becoming
east late in the afternoon. Seas 1 to 2 feet. Wave Detail:
Southeast 1 foot at 5 seconds. A slight chance of showers early
in the morning, then a slight chance of showers and thunderstorms
in the afternoon.
.FRIDAY NIGHT...Southeast winds 5 to 10 knots, becoming south
after midnight. Seas 1 to 2 feet. Wave Detail: Southeast 1 foot
at 5 seconds.
.SATURDAY...South winds 5 to 10 knots, becoming southeast in the
afternoon. Seas 1 to 2 feet. Wave Detail: Southeast 1 foot at
5 seconds. A slight chance of showers and thunderstorms.
.SATURDAY NIGHT...Southeast winds 5 to 10 knots, becoming south
early in the morning. Seas 2 to 3 feet. Wave Detail: Southeast
2 feet at 3 seconds and southeast 1 foot at 6 seconds. A slight
chance of showers and thunderstorms after midnight.
.SUNDAY...South winds 5 to 10 knots. Seas 2 to 3 feet. A chance
of showers and thunderstorms until late afternoon, then a slight
chance of showers and thunderstorms late in the afternoon.
.SUNDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to 4 feet.
A slight chance of showers and thunderstorms early in the
evening. A slight chance of showers and thunderstorms after
midnight.
.MONDAY...Southeast winds around 10 knots. Seas 3 to 4 feet. A
chance of showers and thunderstorms until late afternoon, then a
slight chance of showers and thunderstorms late in the afternoon.
.MONDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to 4 feet.
A slight chance of showers and thunderstorms early in the
evening. A chance of showers with a slight chance of
thunderstorms after midnight.

Winds and seas higher in and near thunderstorms.

$$