Coastal Waters Forecast
Issued by NWS Brownsville, TX

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895
FZUS54 KBRO 290628
CWFBRO

Coastal Waters Forecast for the Lower Texas Coast
National Weather Service Brownsville TX
1228 AM 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.

GMZ100-291915-
1228 AM CST Sat Nov 29 2025

.SYNOPSIS...A Small Craft Advisory is in effect through 6 PM
this evening, and may need to be extended depending on the
strength of the pressure gradient/cold front. SCEC conditions are
still expected through tonight and possibly into Sunday.

$$

GMZ130-132-135-291915-
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-
1228 AM CST Sat Nov 29 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON...

.TODAY...South winds 15 to 20 knots, increasing to 20 to 25 knots
early this afternoon, then diminishing to 15 to 20 knots late
this afternoon. Choppy on the bay, increasing to rough early this
afternoon, then diminishing to choppy late this afternoon. A
slight chance of showers early this afternoon.
.TONIGHT...South winds 10 to 15 knots, becoming southwest early
in the morning. A moderate chop on the bay, diminishing to light
chop early in the morning. A slight chance of showers and
thunderstorms after midnight. A chance of showers with a slight
chance of thunderstorms early in the morning.
.SUNDAY...Northwest winds 10 to 15 knots, becoming north late in
the morning, then increasing to 15 to 20 knots in the afternoon.
Choppy on the bay. A chance of thunderstorms in the morning.
Showers. A slight chance of thunderstorms early in the afternoon.
.SUNDAY NIGHT...North winds 15 to 20 knots. Choppy on the bay.
Showers likely.
.MONDAY...Northwest winds 10 to 15 knots. A moderate chop on the
bay. A chance of showers, mainly in the morning.
.MONDAY NIGHT...Northwest winds 10 to 15 knots. A moderate chop
on the bay. A slight chance of showers.
.TUESDAY...North winds 10 to 15 knots. A moderate chop on the
bay.
.TUESDAY NIGHT...Northeast winds 5 to 10 knots, becoming east
after midnight. Light chop on the bay.
.WEDNESDAY...Southeast winds 5 to 10 knots. Light chop on the
bay. A slight chance of showers in the afternoon.
.WEDNESDAY NIGHT...Southeast winds around 10 knots. Light chop on
the bay. A chance of showers.

Winds and waves higher in and near thunderstorms.

$$

GMZ150-155-291915-
Gulf waters from Port Mansfield to the Rio Grande out 20 nm-
Gulf waters from Baffin Bay to Port Mansfield out 20 nm-
1228 AM CST Sat Nov 29 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON...

.TODAY...South winds 20 to 25 knots, diminishing to 15 to
20 knots late this afternoon. Seas 6 to 9 feet, occasionally to
11 feet. Wave Detail: Southeast 8 feet at 7 seconds. A slight
chance of showers this afternoon.
.TONIGHT...South winds 15 to 20 knots, diminishing to 10 to
15 knots after midnight. Seas 5 to 7 feet, occasionally to
9 feet, subsiding to 3 to 5 feet after midnight. Wave Detail:
Southeast 6 feet at 7 seconds, becoming southeast 5 feet at
7 seconds. A slight chance of showers and thunderstorms in the
late evening and early morning. A chance of showers and
thunderstorms early in the morning.
.SUNDAY...Northwest winds 10 to 15 knots, becoming north 15 to
20 knots with gusts up to 30 knots in the afternoon. Seas 3 to
4 feet, building to 4 to 6 feet, occasionally to 8 feet in the
afternoon. Wave Detail: Southeast 4 feet at 7 seconds, becoming
northeast 6 feet at 7 seconds. A chance of thunderstorms in the
morning, then a slight chance of thunderstorms early in the
afternoon. Showers.
.SUNDAY NIGHT...North winds 15 to 20 knots. Seas 5 to 7 feet,
occasionally to 9 feet. Wave Detail: Northeast 6 feet at
7 seconds and north 3 feet at 4 seconds. Showers.
.MONDAY...Northwest winds 15 to 20 knots, diminishing to 10 to
15 knots in the afternoon. Seas 4 to 6 feet, occasionally to
8 feet. Wave Detail: North 5 feet at 6 seconds. Showers likely,
mainly in the morning.
.MONDAY NIGHT...North winds 10 to 15 knots. Seas 4 to 5 feet.
Wave Detail: North 5 feet at 5 seconds. A chance of showers.
.TUESDAY...North winds 15 to 20 knots, diminishing to 10 to
15 knots late in the afternoon. Seas 5 to 7 feet, occasionally to
9 feet. A slight chance of showers.
.TUESDAY NIGHT...Northeast winds 10 to 15 knots, becoming east
5 to 10 knots after midnight. Seas 3 to 4 feet.
.WEDNESDAY...Southeast winds around 10 knots. Seas 3 to 4 feet. A
slight chance of showers and thunderstorms in the afternoon.
.WEDNESDAY NIGHT...Southeast winds around 10 knots, becoming
south early in the morning. Seas 3 to 4 feet. A chance of
showers.

Winds and seas higher in and near thunderstorms.

$$

GMZ170-175-291915-
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-
1228 AM CST Sat Nov 29 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON...

.TODAY...South winds 20 to 25 knots, diminishing to 15 to
20 knots late this afternoon. Seas 7 to 9 feet, occasionally to
11 feet. Wave Detail: Southeast 8 feet at 7 seconds. A slight
chance of showers early this morning. A slight chance of showers
this afternoon.
.TONIGHT...South winds 15 to 20 knots, diminishing to 10 to
15 knots early in the morning. Seas 5 to 7 feet, occasionally to
9 feet. Wave Detail: South 7 feet at 7 seconds. A slight chance
of showers and thunderstorms in the evening. A chance of showers
and thunderstorms after midnight.
.SUNDAY...South winds 10 to 15 knots, becoming northeast late in
the morning, then becoming north 15 to 20 knots in the afternoon.
Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: Northeast
5 feet at 7 seconds. Showers with a chance of thunderstorms in
the morning, then showers with a slight chance of thunderstorms
in the afternoon.
.SUNDAY NIGHT...Northeast winds 15 to 20 knots. Seas 4 to 6 feet,
occasionally to 8 feet. Wave Detail: North 5 feet at 7 seconds.
Showers. A slight chance of thunderstorms in the late evening and
early morning.
.MONDAY...North winds around 15 knots, becoming northwest in the
afternoon. Seas 4 to 5 feet. Wave Detail: Northeast 5 feet at
7 seconds and west 3 feet at 5 seconds. A slight chance of
thunderstorms early in the morning. Showers in the morning, then
a chance of showers in the afternoon.
.MONDAY NIGHT...Northwest winds 10 to 15 knots, becoming north
15 to 20 knots early in the morning. Seas 4 to 5 feet. Wave
Detail: North 5 feet at 6 seconds. A chance of showers.
.TUESDAY...North winds 15 to 20 knots. Seas 5 to 7 feet,
occasionally to 9 feet. A chance of showers, mainly in the
morning.
.TUESDAY NIGHT...Northeast winds 10 to 15 knots, becoming east
after midnight. Seas 3 to 4 feet. A slight chance of showers
after midnight.
.WEDNESDAY...Southeast winds 10 to 15 knots. Seas 3 to 4 feet. A
slight chance of thunderstorms. A slight chance of showers in the
morning, then a chance of showers in the afternoon.
.WEDNESDAY NIGHT...Southeast winds 10 to 15 knots. Seas 4 to
5 feet. A slight chance of thunderstorms. A chance of showers in
the evening, then showers likely after midnight.

Winds and seas higher in and near thunderstorms.

$$