005
FZUS54 KBRO 061829
CWFBRO

Coastal Waters Forecast for the Lower Texas Coast
National Weather Service Brownsville TX
129 PM CDT Mon Oct 6 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.

GMZ100-070715-
129 PM CDT Mon Oct 6 2025

.SYNOPSIS...Gentle to moderate southeasterly winds and slight to
moderate (2-3 ft) seas continue into tomorrow, becoming east-
northeasterly tomorrow night. Moderate east northeasterly winds
and moderate seas (3-5 ft) develop Wednesday into Friday as the
result of a slight pressure gradient before gentle to moderate
east-southeasterly winds return over the weekend. Small Craft
Exercise Caution conditions are possible for the Laguna Madre
Wednesday into Friday. There is a medium to likely (40-70%)
chance of showers and thunderstorms Tuesday into Friday.

$$

GMZ130-132-135-070715-
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-
129 PM CDT Mon Oct 6 2025

.TONIGHT...Southeast winds 5 to 10 knots. Light chop on the bay.
.TUESDAY...Southeast winds 5 to 10 knots, becoming east in the
afternoon. Light chop on the bay. A slight chance of showers and
thunderstorms early in the morning, then a chance of showers and
thunderstorms in the afternoon.
.TUESDAY NIGHT...East winds 5 to 10 knots. Light chop on the bay.
A slight chance of showers and thunderstorms in the evening. A
chance of showers and thunderstorms after midnight.
.WEDNESDAY...Northeast winds 10 to 15 knots. A moderate chop on
the bay. A chance of showers.
.WEDNESDAY NIGHT...Northeast winds 10 to 15 knots. A moderate
chop on the bay. 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 after midnight.
.THURSDAY...Northeast winds 10 to 15 knots, increasing to 15 to
20 knots in the afternoon. A moderate chop on the bay, increasing
to choppy in the afternoon. A chance of showers. A slight chance
of thunderstorms in the afternoon.
.THURSDAY NIGHT...Northeast winds 10 to 15 knots. A moderate chop
on the bay. 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.
.FRIDAY...Northeast winds 10 to 15 knots. A moderate chop on the
bay. A slight chance of showers and thunderstorms.
.FRIDAY NIGHT...Northeast winds 10 to 15 knots, becoming east
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 in the evening.
.SATURDAY...Northeast winds 5 to 10 knots. Light chop on the bay.
.SATURDAY NIGHT...East winds 5 to 10 knots, becoming southeast
after midnight. Light chop on the bay.

Winds and waves higher in and near thunderstorms.

$$

GMZ150-155-070715-
Gulf waters from Port Mansfield to the Rio Grande out 20 nm-
Gulf waters from Baffin Bay to Port Mansfield out 20 nm-
129 PM CDT Mon Oct 6 2025

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

Winds and seas higher in and near thunderstorms.

$$

GMZ170-175-070715-
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-
129 PM CDT Mon Oct 6 2025

.TONIGHT...Southeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 2 feet at 3 seconds and east 2 feet at
7 seconds. A slight chance of showers and thunderstorms early
this morning.
.TUESDAY...Southeast winds 5 to 10 knots, becoming east in the
afternoon. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at
4 seconds and east 2 feet at 7 seconds. A chance of showers. A
slight chance of thunderstorms early in the morning, then a
chance of thunderstorms in the afternoon.
.TUESDAY NIGHT...East winds around 10 knots. Seas 2 to 3 feet.
Wave Detail: East 3 feet at 6 seconds. A slight chance of
thunderstorms. A slight chance of showers in the evening, then a
chance of showers after midnight.
.WEDNESDAY...Northeast winds 10 to 15 knots. Seas 3 to 4 feet.
Wave Detail: East 3 feet at 6 seconds. A chance of showers. A
slight chance of thunderstorms early in the morning. A slight
chance of thunderstorms in the afternoon.
.WEDNESDAY NIGHT...Northeast winds 10 to 15 knots. Seas 3 to
4 feet. Wave Detail: East 4 feet at 6 seconds. A chance of
showers. A slight chance of thunderstorms early in the evening. A
slight chance of thunderstorms early in the morning.
.THURSDAY...Northeast winds 15 to 20 knots. Seas 4 to 5 feet.
Wave Detail: East 5 feet at 6 seconds. Showers likely with a
slight chance of thunderstorms.
.THURSDAY NIGHT...Northeast winds around 15 knots. Seas 4 to
5 feet. Showers likely with a slight chance of thunderstorms
early in the evening, then a chance of showers in the late
evening and overnight.
.FRIDAY...Northeast winds around 15 knots. Seas 4 to 5 feet. A
chance of showers with a slight chance of thunderstorms until
late afternoon, then a slight chance of showers late in the
afternoon.
.FRIDAY NIGHT...Northeast winds 10 to 15 knots. Seas 3 to 5 feet.
A slight chance of showers.
.SATURDAY...Northeast winds around 10 knots. Seas 3 to 4 feet. A
slight chance of showers.
.SATURDAY NIGHT...East winds 5 to 10 knots. Seas 3 to 4 feet. A
slight chance of showers until early morning.

Winds and seas higher in and near thunderstorms.

$$