856
FZUS54 KBRO 020545
CWFBRO

Coastal Waters Forecast for the Lower Texas Coast
National Weather Service Brownsville TX
1245 AM CDT Tue Sep 2 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.

GMZ100-021815-
1245 AM CDT Tue Sep 2 2025

.SYNOPSIS...Favorable marine conditions are expected to continue
through the period. Light to moderate winds will likely continue
to support slight seas along the Lower Texas Coast. Showers and
thunderstorms will be possible over the waters through Wednesday
morning, with additional rain chances returning this weekend.

$$

GMZ130-132-135-021815-
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-
1245 AM CDT Tue Sep 2 2025

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

Winds and waves higher in and near thunderstorms.

$$

GMZ150-155-021815-
Gulf waters from Port Mansfield to the Rio Grande out 20 nm-
Gulf waters from Baffin Bay to Port Mansfield out 20 nm-
1245 AM CDT Tue Sep 2 2025

.TODAY...West winds around 5 knots, becoming north this
afternoon. Seas 1 to 2 feet. Wave Detail: Northwest 1 foot at
2 seconds and east 1 foot at 4 seconds. A chance of showers and
thunderstorms until late afternoon, then a slight chance of
showers and thunderstorms late this afternoon.
.TONIGHT...Northeast winds 5 to 10 knots, becoming north early in
the morning. Seas 2 to 3 feet. Wave Detail: Northeast 2 feet at
4 seconds and east 1 foot at 8 seconds. A slight chance of
showers and thunderstorms early in the evening.
.WEDNESDAY...Northwest winds 5 to 10 knots, becoming northeast
late in the afternoon. Seas 2 to 3 feet. Wave Detail: North
1 foot at 4 seconds and east 1 foot at 8 seconds. A slight chance
of showers and thunderstorms early in the morning.
.WEDNESDAY NIGHT...East winds around 10 knots, becoming 5 to
10 knots late in the evening, then becoming southeast after
midnight, becoming south early in the morning. Seas 2 to 3 feet.
Wave Detail: Northeast 2 feet at 4 seconds and east 1 foot at
7 seconds.
.THURSDAY...Southwest winds around 5 knots, becoming west around
5 knots late in the morning, then becoming east early in the
afternoon, increasing to 5 to 10 knots late in the afternoon.
Seas 1 to 2 feet. Wave Detail: East 1 foot at 5 seconds.
.THURSDAY NIGHT...Southeast winds around 10 knots. Seas 1 to
2 feet. Wave Detail: East 2 feet at 3 seconds and east 1 foot at
6 seconds.
.FRIDAY...Southeast winds 5 to 10 knots, becoming around 10 knots
late in the afternoon. Seas 1 to 2 feet.
.FRIDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to 3 feet.
A chance of showers with a slight chance of thunderstorms after
midnight.
.SATURDAY...Southeast winds 5 to 10 knots. Seas 2 to 3 feet. A
chance of showers and thunderstorms.
.SATURDAY NIGHT...Southeast winds around 10 knots. Seas 2 to
3 feet. A chance of showers.

Winds and seas higher in and near thunderstorms.

$$

GMZ170-175-021815-
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-
1245 AM CDT Tue Sep 2 2025

.TODAY...West winds 5 to 10 knots, becoming north late this
afternoon. Seas 1 to 2 feet. Wave Detail: North 2 feet at
4 seconds and southeast 1 foot at 4 seconds. A chance of showers
and thunderstorms until late afternoon, then a slight chance of
showers and thunderstorms late this afternoon.
.TONIGHT...Northeast winds 5 to 10 knots, becoming north early in
the morning. Seas 2 to 3 feet. Wave Detail: Northeast 2 feet at
4 seconds and east 1 foot at 8 seconds. A slight chance of
showers and thunderstorms early in the evening. A slight chance
of showers and thunderstorms after midnight.
.WEDNESDAY...North winds 5 to 10 knots, becoming northeast in the
afternoon. Seas 2 to 3 feet. Wave Detail: Northeast 2 feet at
4 seconds and east 1 foot at 8 seconds. A slight chance of
thunderstorms.
.WEDNESDAY NIGHT...Northeast winds around 10 knots, becoming east
late in the evening, then becoming southeast after midnight,
becoming south early in the morning. Seas 2 to 3 feet. Wave
Detail: Northeast 2 feet at 4 seconds and east 1 foot at
7 seconds.
.THURSDAY...Southwest winds around 5 knots, becoming northwest
late in the morning, then becoming northeast around 5 knots early
in the afternoon, becoming east around 5 knots late in the
afternoon. Seas 1 to 2 feet. Wave Detail: Northeast 1 foot at
5 seconds.
.THURSDAY NIGHT...East winds around 10 knots, becoming southeast
after midnight. Seas 1 to 2 feet. Wave Detail: East 1 foot at
3 seconds and east 1 foot at 6 seconds.
.FRIDAY...Southeast winds 5 to 10 knots. Seas 1 to 2 feet.
.FRIDAY NIGHT...Southeast winds around 10 knots. Seas 2 to
3 feet. A slight chance of showers and thunderstorms in the
evening, then a chance of showers and thunderstorms after
midnight.
.SATURDAY...Southeast winds 5 to 10 knots. Seas 2 to 3 feet. A
chance of showers and thunderstorms.
.SATURDAY NIGHT...Southeast winds around 10 knots. Seas 2 to
3 feet. A chance of thunderstorms. A chance of showers until
early morning, then showers likely early in the morning.

Winds and seas higher in and near thunderstorms.

$$