175
FZUS54 KBRO 111803
CWFBRO

Coastal Waters Forecast for the Lower Texas Coast
National Weather Service Brownsville TX
Issued by National Weather Service Lake Charles LA
103 PM CDT Thu Sep 11 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.

GMZ100-120630-
103 PM CDT Thu Sep 11 2025

.SYNOPSIS...

A weak pressure gradient over the western Gulf will keep light to
moderate winds and low seas in place throughout the forecast
period. A prolonged period of sustained easterly winds over the
next several days could result in rougher surf at area beaches
with a slightly increased risk of rip currents. Tonight`s rip
current risk is low, but tomorrow`s rip current risk is expected
to increase to moderate. Isolated to scattered showers will be
possible through the next few days, with rain chances increasing
next week.

$$

GMZ130-132-135-120630-
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-
103 PM CDT Thu Sep 11 2025

.TONIGHT...East winds 5 to 10 knots. Light chop on the bay. A
slight chance of showers and thunderstorms after midnight.
.THURSDAY...East winds 5 to 10 knots. Light chop on the bay. A
slight chance of thunderstorms in the morning. A chance of
showers. A chance of thunderstorms in the afternoon.
.THURSDAY NIGHT...East winds 5 to 10 knots. Light chop on the
bay. A slight chance of showers and thunderstorms in the evening,
then a chance of showers and thunderstorms after midnight.
.FRIDAY...East winds 5 to 10 knots increasing to 10 to 15 knots
in the afternoon. Light chop on the bay becoming a moderate chop
in the afternoon. Showers likely in the morning. A chance of
thunderstorms. A chance of showers in the afternoon.
.FRIDAY NIGHT...East winds 5 to 10 knots. Light chop on the bay.
A chance of showers with a slight chance of thunderstorms.
.SATURDAY...East winds 5 to 10 knots increasing to 10 to 15 knots
in the afternoon. Light chop on the bay becoming a moderate chop
in the afternoon. A chance of showers. A slight chance of
thunderstorms in the afternoon.
.SATURDAY NIGHT...East winds 10 to 15 knots becoming southeast
5 to 10 knots after midnight. A moderate chop on the bay becoming
light chop after midnight. A slight chance of showers.
.SUNDAY...East winds 5 to 10 knots increasing to 10 to 15 knots
in the afternoon. Light chop on the bay becoming a moderate chop
in the afternoon. A chance of showers. A slight chance of
thunderstorms in the afternoon.
.SUNDAY NIGHT...East winds 5 to 10 knots. Light chop on the bay.
A chance of showers.

Winds and waves higher in and near thunderstorms.

$$

GMZ150-155-120630-
Gulf waters from Port Mansfield to the Rio Grande out 20 nm-
Gulf waters from Baffin Bay to Port Mansfield out 20 nm-
103 PM CDT Thu Sep 11 2025

.TONIGHT...East winds 10 to 15 knots decreasing to 5 to 10 knots
after midnight. Seas 2 to 3 feet. Wave Detail: East 2 feet at
5 seconds. A slight chance of showers and thunderstorms in the
evening. A chance of showers and thunderstorms after midnight.
.THURSDAY...East winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: East 2 feet at 5 seconds. A chance of showers and
thunderstorms.
.THURSDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet.
Wave Detail: East 3 feet at 6 seconds. A slight chance of showers
and thunderstorms in the evening, then a chance of showers and
thunderstorms after midnight.
.FRIDAY...East winds 5 to 10 knots increasing to 10 to 15 knots
in the afternoon. Seas 2 to 4 feet. Wave Detail: East 3 feet at
6 seconds. Showers likely in the morning. A chance of
thunderstorms. A chance of showers in the afternoon.
.FRIDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 4 feet. Wave
Detail: Southeast 3 feet at 6 seconds. A chance of showers with a
slight chance of thunderstorms.
.SATURDAY...East winds 5 to 10 knots increasing to 10 to 15 knots
in the afternoon. Seas 3 to 4 feet. A chance of showers with a
slight chance of thunderstorms.
.SATURDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 4 feet. A
slight chance of showers in the evening, then a chance of showers
after midnight.
.SUNDAY...East winds around 10 knots. Seas 3 to 4 feet. A chance
of showers. A slight chance of thunderstorms in the afternoon.
.SUNDAY NIGHT...East winds 5 to 10 knots. Seas 3 to 4 feet. A
chance of showers with a slight chance of thunderstorms.

Winds and seas higher in and near thunderstorms.

$$

GMZ170-175-120630-
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-
103 PM CDT Thu Sep 11 2025

.TONIGHT...East winds 10 to 15 knots decreasing to 5 to 10 knots
after midnight. Seas 2 to 3 feet. Wave Detail: East 2 feet at
5 seconds. A slight chance of thunderstorms in the evening. A
chance of showers. A chance of thunderstorms after midnight.
.THURSDAY...East winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: East 2 feet at 6 seconds. A chance of showers and
thunderstorms.
.THURSDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 4 feet.
Wave Detail: East 3 feet at 6 seconds. A chance of showers and
thunderstorms.
.FRIDAY...East winds 5 to 10 knots increasing to 10 to 15 knots
in the afternoon. Seas 3 to 4 feet. Wave Detail: East 3 feet at
6 seconds. Showers likely in the morning. A chance of
thunderstorms. A chance of showers in the afternoon.
.FRIDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 4 feet. Wave
Detail: East 3 feet at 6 seconds. A chance of showers with a
slight chance of thunderstorms.
.SATURDAY...East winds 10 to 15 knots. Seas 3 to 4 feet. A chance
of showers.
.SATURDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 4 feet. A
chance of showers.
.SUNDAY...East winds around 10 knots. Seas 3 to 4 feet. A chance
of showers. A slight chance of thunderstorms in the afternoon.
.SUNDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 4 feet. A
chance of showers with a slight chance of thunderstorms.

Winds and seas higher in and near thunderstorms.

$$