027
FZUS54 KBRO 031734
CWFBRO

Coastal Waters Forecast for the Lower Texas Coast
National Weather Service Brownsville TX
1234 PM CDT Fri Oct 3 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.

GMZ100-040630-
1234 PM CDT Fri Oct 3 2025

.SYNOPSIS...Light to moderate easterly winds and moderate seas
are expected this weekend. Seas are expected to subside slightly
Monday, with slight to moderate seas continuing through mid week.
Isolated to scattered showers and thunderstorms will be possible
through the period.

$$

GMZ130-132-135-040630-
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 Fri Oct 3 2025

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

Winds and waves higher in and near thunderstorms.

$$

GMZ150-155-040630-
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 Fri Oct 3 2025

.TONIGHT...Northeast winds 10 to 15 knots. Seas 2 to 4 feet. Wave
Detail: East 3 feet at 5 seconds. A slight chance of showers. A
slight chance of thunderstorms early this evening. A slight
chance of thunderstorms after midnight.
.SATURDAY...Northeast winds 10 to 15 knots. Seas 3 to 4 feet.
Wave Detail: Northeast 4 feet at 6 seconds. A slight chance of
showers and thunderstorms early in the morning, then a chance of
showers and thunderstorms in the afternoon. A slight chance of
showers and thunderstorms late in the afternoon.
.SATURDAY NIGHT...Northeast winds 10 to 15 knots, becoming east
5 to 10 knots after midnight. Seas 3 to 4 feet. Wave Detail: East
4 feet at 8 seconds. A chance of showers. A slight chance of
thunderstorms early in the morning.
.SUNDAY...Northeast winds 5 to 10 knots. Seas 3 to 4 feet. Wave
Detail: East 4 feet at 8 seconds. A slight chance of
thunderstorms. A chance of showers, mainly in the morning.
.SUNDAY NIGHT...East winds 5 to 10 knots, becoming southeast
after midnight. Seas 3 to 4 feet. Wave Detail: East 4 feet at
8 seconds. A slight chance of showers.
.MONDAY...Southeast winds around 5 knots, becoming east in the
afternoon. Seas 2 to 3 feet. Wave Detail: East 3 feet at
7 seconds. A slight chance of showers. A slight chance of
thunderstorms in the afternoon.
.MONDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet. A
slight chance of showers early in the evening. A slight chance of
showers after midnight.
.TUESDAY...East winds 5 to 10 knots. Seas 2 to 3 feet. A chance
of showers. A slight chance of thunderstorms in the afternoon.
.TUESDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet. A
chance of showers with a slight chance of thunderstorms early in
the evening, then a slight chance of showers late in the evening.
A chance of showers with a slight chance of thunderstorms after
midnight.
.WEDNESDAY...Northeast winds 10 to 15 knots. Seas 2 to 3 feet. A
chance of showers with a slight chance of thunderstorms.
.WEDNESDAY NIGHT...Northeast winds around 10 knots. Seas 2 to
4 feet. A chance of showers early in the evening, then a slight
chance of showers late in the evening. A chance of showers after
midnight.

Winds and seas higher in and near thunderstorms.

$$

GMZ170-175-040630-
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 Fri Oct 3 2025

.TONIGHT...Northeast winds 10 to 15 knots. Seas 2 to 4 feet. Wave
Detail: Northeast 3 feet at 5 seconds. A chance of showers and
thunderstorms early this evening, then a slight chance of showers
and thunderstorms late this evening and early morning. A chance
of showers and thunderstorms early this morning.
.SATURDAY...Northeast winds 10 to 15 knots. Seas 3 to 4 feet.
Wave Detail: Northeast 4 feet at 6 seconds. A chance of showers.
A chance of thunderstorms until late afternoon, then a slight
chance of thunderstorms late in the afternoon.
.SATURDAY NIGHT...Northeast winds 10 to 15 knots, becoming east
5 to 10 knots after midnight. Seas 4 to 5 feet. Wave Detail:
Northeast 4 feet at 8 seconds. A chance of showers with a slight
chance of thunderstorms.
.SUNDAY...East winds 5 to 10 knots. Seas 4 to 5 feet. Wave
Detail: East 4 feet at 8 seconds. A slight chance of
thunderstorms. A chance of showers until late afternoon, then a
slight chance of showers late in the afternoon.
.SUNDAY NIGHT...East winds 5 to 10 knots, becoming southeast
after midnight. Seas 3 to 4 feet. Wave Detail: East 4 feet at
8 seconds. A slight chance of showers until early morning, then a
chance of showers early in the morning.
.MONDAY...Southeast winds 5 to 10 knots, becoming east in the
afternoon. Seas 2 to 4 feet. Wave Detail: East 3 feet at
8 seconds. A slight chance of showers. A slight chance of
thunderstorms in the afternoon.
.MONDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet. A
slight chance of showers in the evening, then a chance of showers
after midnight.
.TUESDAY...East winds 5 to 10 knots. Seas 2 to 3 feet. A chance
of showers. A slight chance of thunderstorms in the afternoon.
.TUESDAY NIGHT...East winds around 10 knots. Seas 2 to 3 feet. A
chance of showers. A slight chance of thunderstorms early in the
evening. A slight chance of thunderstorms early in the morning.
.WEDNESDAY...Northeast winds 10 to 15 knots. Seas 2 to 3 feet. A
slight chance of thunderstorms until late afternoon. A chance of
showers.
.WEDNESDAY NIGHT...Northeast winds 10 to 15 knots. Seas 2 to
4 feet. A chance of showers.

Winds and seas higher in and near thunderstorms.

$$