177
FZUS54 KBRO 300348
CWFBRO

Coastal Waters Forecast for the Lower Texas Coast
National Weather Service Brownsville TX
948 PM CST Sat Nov 29 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.

GMZ100-301630-
948 PM CST Sat Nov 29 2025

.SYNOPSIS...Small Craft Exercise Caution (SCEC) conditions are
expected to persist through tonight. An enhanced pressure
gradient from a strong cold front will result in strong winds and
increased seas on Sunday. These hazardous marine conditions will
persist into Monday before showing some improvements. A Small
Craft Advisory has been issued from 6 AM CST Sunday to 6 AM CST
Monday as a result.

$$

GMZ130-132-135-301630-
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-
948 PM CST Sat Nov 29 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 6 AM CST SUNDAY THROUGH
LATE SUNDAY NIGHT...

...SMALL CRAFT SHOULD EXERCISE CAUTION THROUGH TONIGHT...

.REST OF TONIGHT...South winds 10 to 15 knots. A moderate chop on
the bay. A chance of showers with a slight chance of
thunderstorms.
.SUNDAY...Northeast winds 10 to 15 knots becoming north 15 to
20 knots in the afternoon. A moderate chop on the bay becoming
choppy in the afternoon. Showers likely with a chance of
thunderstorms in the morning, then a chance of showers with a
slight chance of thunderstorms in the afternoon.
.SUNDAY NIGHT...North winds 15 to 20 knots. Choppy on the bay. A
chance of showers in the evening. A slight chance of
thunderstorms. Showers likely after midnight.
.MONDAY...Northwest winds 10 to 15 knots. A moderate chop on the
bay. Showers likely, mainly in the morning.
.MONDAY NIGHT...North winds 5 to 10 knots increasing to 15 to
20 knots after midnight. Light chop on the bay becoming choppy
after midnight. A chance of showers.
.TUESDAY...North winds 15 to 20 knots decreasing to 10 to
15 knots in the afternoon. Choppy on the bay becoming a moderate
chop in the afternoon. A slight chance of showers in the morning.
.TUESDAY NIGHT...Northeast winds 5 to 10 knots. Light chop on the
bay. A slight chance of showers in the evening.
.WEDNESDAY...East winds 5 to 10 knots becoming southeast in the
afternoon. Light chop on the bay. A slight chance of showers in
the afternoon.
.WEDNESDAY NIGHT...South winds 5 to 10 knots. Light chop on the
bay. A chance of showers with a slight chance of thunderstorms.
.THURSDAY...Northeast winds 5 to 10 knots becoming north 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.
.THURSDAY NIGHT...North winds 10 to 15 knots. A moderate chop on
the bay. A slight chance of thunderstorms in the evening. A
chance of showers.

Winds and waves higher in and near thunderstorms.

$$

GMZ150-155-301630-
Gulf waters from Port Mansfield to the Rio Grande out 20 nm-
Gulf waters from Baffin Bay to Port Mansfield out 20 nm-
948 PM CST Sat Nov 29 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 6 AM CST SUNDAY THROUGH
LATE SUNDAY NIGHT...

...SMALL CRAFT SHOULD EXERCISE CAUTION THROUGH TONIGHT...

.REST OF TONIGHT...South winds 10 to 15 knots. Seas 3 to 5 feet.
Wave Detail: Southeast 5 feet at 7 seconds. A slight chance of
showers late this evening, then a chance of showers with a slight
chance of thunderstorms.
.SUNDAY...Northwest winds 15 to 20 knots becoming north 20 to
25 knots with gusts up to 30 knots in the afternoon. Seas 4 to
6 feet, with occasional seas up to 7 feet. Wave Detail: Northeast
6 feet at 6 seconds. Showers likely in the morning. A chance of
thunderstorms. A chance of showers in the afternoon.
.SUNDAY NIGHT...North winds 20 to 25 knots decreasing to 15 to
20 knots after midnight. Seas 5 to 7 feet, with occasional seas
up to 8 feet. Wave Detail: North 6 feet at 6 seconds. A chance of
showers and thunderstorms in the evening, then showers likely
with a slight chance of thunderstorms after midnight.
.MONDAY...North winds 15 to 20 knots becoming northwest 10 to
15 knots in the afternoon. Seas 4 to 6 feet, with occasional seas
up to 7 feet. Wave Detail: North 5 feet at 6 seconds. Showers
likely with a slight chance of thunderstorms in the morning, then
a chance of showers in the afternoon.
.MONDAY NIGHT...North winds 10 to 15 knots increasing to 15 to
20 knots after midnight. Seas 3 to 4 feet building to 4 to
6 feet, with occasional seas up to 7 feet after midnight. Wave
Detail: Northeast 4 feet at 6 seconds becoming north 5 feet at
5 seconds. A chance of showers in the evening, then showers
likely after midnight.
.TUESDAY...North winds 15 to 20 knots. Seas 4 to 6 feet, with
occasional seas up to 7 feet. Wave Detail: Northeast 6 feet at
7 seconds. A chance of showers, mainly in the morning.
.TUESDAY NIGHT...Northeast winds 5 to 10 knots becoming east
after midnight. Seas 3 to 5 feet. A slight chance of showers.
.WEDNESDAY...Southeast winds 5 to 10 knots becoming south in the
afternoon. Seas 3 to 4 feet. A slight chance of showers in the
morning, then a chance of showers with a slight chance of
thunderstorms in the afternoon.
.WEDNESDAY NIGHT...South winds around 10 knots. Seas 3 to 4 feet.
A chance of showers with a slight chance of thunderstorms.
.THURSDAY...Southeast winds around 10 knots becoming northeast in
the afternoon. Seas 3 to 4 feet. Showers likely with a slight
chance of thunderstorms.
.THURSDAY NIGHT...North winds 10 to 15 knots. Seas 3 to 4 feet. A
slight chance of thunderstorms in the evening. Showers likely.

Winds and seas higher in and near thunderstorms.

$$

GMZ170-175-301630-
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-
948 PM CST Sat Nov 29 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 6 AM CST SUNDAY THROUGH
LATE SUNDAY NIGHT...

...SMALL CRAFT SHOULD EXERCISE CAUTION THROUGH TONIGHT...

.REST OF TONIGHT...South winds 15 to 20 knots decreasing to 10 to
15 knots. Seas 4 to 6 feet, with occasional seas up to 7 feet.
Wave Detail: South 5 feet at 7 seconds. A chance of showers. A
slight chance of thunderstorms.
.SUNDAY...Southeast winds 15 to 20 knots becoming north 20 to
25 knots in the afternoon. Seas 3 to 5 feet building to 5 to
7 feet, with occasional seas up to 8 feet in the afternoon. Wave
Detail: Southeast 4 feet at 6 seconds becoming northeast 5 feet
at 6 seconds. Showers with a chance of thunderstorms.
.SUNDAY NIGHT...North winds 15 to 20 knots. Seas 5 to 7 feet,
with occasional seas up to 8 feet. Wave Detail: Northeast 6 feet
at 6 seconds. Showers likely with a chance of thunderstorms.
.MONDAY...North winds 10 to 15 knots. Seas 4 to 5 feet. Wave
Detail: North 4 feet at 6 seconds. A slight chance of
thunderstorms in the morning. Showers.
.MONDAY NIGHT...North winds 10 to 15 knots increasing to 15 to
20 knots after midnight. Seas 4 to 5 feet. Wave Detail: North
4 feet at 6 seconds. Showers.
.TUESDAY...North winds 15 to 20 knots. Seas 5 to 7 feet, with
occasional seas up to 8 feet. Wave Detail: North 6 feet at
6 seconds. A chance of showers.
.TUESDAY NIGHT...Northeast winds 10 to 15 knots becoming east
after midnight. Seas 3 to 5 feet. A slight chance of showers.
.WEDNESDAY...Southeast winds 10 to 15 knots becoming south in the
afternoon. Seas 3 to 4 feet. A chance of showers in the morning.
A slight chance of thunderstorms. Showers likely in the
afternoon.
.WEDNESDAY NIGHT...South winds 10 to 15 knots. Seas 4 to 5 feet.
Showers likely with a slight chance of thunderstorms.
.THURSDAY...South winds 10 to 15 knots becoming southeast in the
afternoon. Seas 3 to 4 feet. Showers likely with a slight chance
of thunderstorms.
.THURSDAY NIGHT...Northeast winds 10 to 15 knots. Seas 3 to
5 feet. A chance of thunderstorms in the evening. Showers likely.

Winds and seas higher in and near thunderstorms.

$$