Coastal Waters Forecast
Issued by NWS Brownsville, TX

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FZUS54 KBRO 081713
CWFBRO

Coastal Waters Forecast for the Lower Texas Coast
National Weather Service Brownsville TX
1213 PM CDT Fri Aug 8 2025

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.

GMZ100-090615-
1213 PM CDT Fri Aug 8 2025

.SYNOPSIS...Generally favorable marine conditions will occur over
the Laguna Madre and Gulf waters for the next several days, with
generally light to moderate south to southeasterly winds and low
to moderate seas expected. Daily low (20-30%) rain chances
continue through mid week next week.

$$

GMZ130-132-135-090615-
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-
1213 PM CDT Fri Aug 8 2025

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

Winds and waves higher in and near thunderstorms.

$$

GMZ150-155-090615-
Gulf waters from Port Mansfield to the Rio Grande out 20 nm-
Gulf waters from Baffin Bay to Port Mansfield out 20 nm-
1213 PM CDT Fri Aug 8 2025

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

Winds and seas higher in and near thunderstorms.

$$

GMZ170-175-090615-
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-
1213 PM CDT Fri Aug 8 2025

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

Winds and seas higher in and near thunderstorms.

$$