502
FZUS54 KBRO 161734
CWFBRO

Coastal Waters Forecast for the Lower Texas Coast
National Weather Service Brownsville TX
1234 PM CDT Thu Oct 16 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.

GMZ100-170630-
1234 PM CDT Thu Oct 16 2025

.SYNOPSIS...Weak high pressure will extend from the southeast U.S.
across the Gulf through Saturday. A wind shift line may slide
across the waters Sunday, with little to no impact other than a
wind shift from southeast to northeast. The line will dissipate,
with southeast winds returning Monday and Tuesday. Light to
moderate onshore winds and slight to moderate seas should prevail
through the period with limited rain chances offshore Friday
through Sunday.


$$

GMZ130-132-135-170630-
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-
1234 PM CDT Thu Oct 16 2025

.TONIGHT...Southeast winds 5 to 10 knots. Light chop on the bay.
.FRIDAY...South winds around 5 knots, becoming east 10 knots in
the afternoon. Smooth on the bay, increasing to light chop in the
afternoon.
.FRIDAY NIGHT...Southeast winds around 10 knots, becoming south
after midnight. Light chop on the bay.
.SATURDAY...South winds 5 to 10 knots, becoming southeast 10 knots in
the afternoon. Light chop on the bay.
.SATURDAY NIGHT...Southeast winds 5 to 10 knots, becoming south
early in the morning. Light chop on the bay.
.SUNDAY...South winds around 5 knots, becoming east and increasing
to 10 to 15 knots by late afternoon. Smooth on the bay,
increasing to a moderate chop late in the afternoon.
.SUNDAY NIGHT...East winds around 10 knots, becoming southeast
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
after midnight. A moderate chop on the bay becoming a light chop
after midnight.
.TUESDAY...South winds around 10 knots, becoming southeast 10 to
15 knots in the afternoon. A light chop on the bay becoming a
moderate chop in the afternoon.
.TUESDAY NIGHT...Southeast winds 10 to 15 knots. A moderate chop
on the bay.

$$

GMZ150-155-170630-
Gulf waters from Port Mansfield to the Rio Grande out 20 nm-
Gulf waters from Baffin Bay to Port Mansfield out 20 nm-
1234 PM CDT Thu Oct 16 2025

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

$$

GMZ170-175-170630-
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-
1234 PM CDT Thu Oct 16 2025

.TONIGHT...Southeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: East 2 feet at 5 seconds. A slight chance of showers and
thunderstorms after midnight.
.FRIDAY...Southeast winds 5 to 10 knots, becoming east in the
afternoon. Seas 2 to 3 feet. Wave Detail: East 3 feet at 5
seconds. A slight chance of showers and thunderstorms.
.FRIDAY NIGHT...Southeast winds 5 to 10 knots, becoming south
10 to 15 knots after midnight. Seas 3 to 4 feet. Wave Detail:
East 3 feet at 7 seconds. A slight chance of thunderstorms until
early morning. A slight chance of showers.
.SATURDAY...South winds 5 to 10 knots. Seas 2 to 4 feet. Wave
Detail: Southeast 3 feet at 5 seconds. A slight chance of showers
early in the morning.
.SATURDAY NIGHT...Southeast winds 5 to 10 knots. Seas 2 to
3 feet. Wave Detail: Southeast 2 feet at 5 seconds.
.SUNDAY...South winds around 5 knots, becoming northeast in the
afternoon. Seas 2 to 3 feet. Wave Detail: East 3 feet at
7 seconds and south 1 foot at 4 seconds. A slight chance of
showers.
.SUNDAY NIGHT...East winds 10 to 15 knots, becoming around
10 knots after midnight. Seas 3 to 4 feet. A slight chance of
showers early in the evening.
.MONDAY...Southeast winds around 10 knots. Seas 3 to 4 feet.
.MONDAY NIGHT...Southeast winds 10 to 15 knots, becoming south
early in the morning. Seas 3 to 4 feet.
.TUESDAY...South winds 10 to 15 knots, becoming southeast late in
the afternoon. Seas 3 to 4 feet.
.TUESDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to
4 feet. A slight chance of showers after midnight.

Winds and seas higher in and near thunderstorms Friday and Friday
night.

$$

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