655
FZUS54 KBRO 040548
CWFBRO

Coastal Waters Forecast for the Lower Texas Coast
National Weather Service Brownsville TX
1248 AM CDT Mon Aug 4 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.

GMZ100-041815-
1248 AM CDT Mon Aug 4 2025

.SYNOPSIS...Favorable marine conditions prevail this week as high
pressure over the Gulf continues to result in mainly gentle
southeasterly to southerly winds and slight seas, though moderate
winds are possible across the Laguna Madre each afternoon and
early evening hours. There will be low of showers and thunderstorms
across all lower Texas coastal waters at times this week.

$$

GMZ130-132-135-041815-
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-
1248 AM CDT Mon Aug 4 2025

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

Winds and waves higher in and near thunderstorms.

$$

GMZ150-155-041815-
Gulf waters from Port Mansfield to the Rio Grande out 20 nm-
Gulf waters from Baffin Bay to Port Mansfield out 20 nm-
1248 AM CDT Mon Aug 4 2025

.TODAY...South winds 5 to 10 knots, becoming southeast this
afternoon. Seas 1 to 2 feet. Wave Detail: Southeast 1 foot at
4 seconds.
.TONIGHT...Southeast winds around 10 knots, becoming south after
midnight. Seas 1 to 2 feet. Wave Detail: Southeast 2 feet at
4 seconds.
.TUESDAY...South winds 5 to 10 knots, becoming east 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.
.TUESDAY NIGHT...Southeast winds around 10 knots, becoming 5 to
10 knots after midnight. Seas 1 to 2 feet. Wave Detail: Southeast
1 foot at 3 seconds.
.WEDNESDAY...Southeast winds 5 to 10 knots. Seas 1 to 2 feet.
Wave Detail: Southeast 2 feet at 4 seconds. A slight chance of
showers and thunderstorms in the morning.
.WEDNESDAY NIGHT...Southeast winds around 10 knots, becoming
south early in the morning. Seas 2 to 3 feet. Wave Detail:
Southeast 2 feet at 6 seconds.
.THURSDAY...South winds 5 to 10 knots, becoming southeast late in
the afternoon. Seas 2 to 3 feet.
.THURSDAY NIGHT...Southeast winds around 10 knots, becoming south
early in the morning. Seas 2 to 3 feet.
.FRIDAY...South winds 5 to 10 knots, becoming southeast in the
afternoon. Seas 2 to 3 feet.
.FRIDAY NIGHT...Southeast winds 10 to 15 knots, becoming south
early in the morning. Seas 2 to 3 feet.

Winds and seas higher in and near thunderstorms.

$$

GMZ170-175-041815-
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-
1248 AM CDT Mon Aug 4 2025

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

Winds and seas higher in and near thunderstorms.

$$