142
FZUS54 KBRO 301758
CWFBRO

Coastal Waters Forecast for the Lower Texas Coast
National Weather Service Brownsville TX
1158 AM CST Sun Nov 30 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.

GMZ100-010615-
1158 AM CST Sun Nov 30 2025

.SYNOPSIS...Hazardous marine conditions will likely continue into
Monday morning. A Small Craft Advisory is in effect until 6 AM
Monday. Conditions will briefly improve through the day Monday,
however adverse conditions will likely develop Monday night into
Tuesday. Generally favorable conditions are forecast to return by
Wednesday and continue through the remainder of the forecast.

$$

GMZ130-132-135-010615-
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-
1158 AM CST Sun Nov 30 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...

.TONIGHT...North winds 15 to 20 knots. Choppy on the bay. A
chance of showers.
.MONDAY...Northwest winds 15 to 20 knots, diminishing to 10 to
15 knots in the afternoon. Choppy on the bay, diminishing to a
moderate chop in the afternoon. A chance of showers early in the
morning, then a slight chance of showers in the afternoon.
.MONDAY NIGHT...North winds 10 to 15 knots, increasing to 15 to
20 knots early in the morning. A moderate chop on the bay,
increasing to choppy early in the morning. A chance of showers.
.TUESDAY...North winds 15 to 20 knots, diminishing to 10 to
15 knots in the afternoon. Choppy on the bay, diminishing to a
moderate chop in the afternoon. A slight chance of showers in the
morning.
.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...South winds 5 to 10 knots. Light chop on the
bay. A chance of showers with a slight chance of thunderstorms.
.THURSDAY...South winds 5 to 10 knots, becoming southeast 10 to
15 knots early in the afternoon, then becoming east late in the
afternoon. Light chop on the bay, increasing to a moderate chop
in the afternoon. A chance of showers in the morning, then
showers likely with a slight chance of thunderstorms in the
afternoon.
.THURSDAY NIGHT...North winds 10 to 15 knots, becoming northwest
after midnight. A moderate chop on the bay. Showers likely with a
chance of thunderstorms in the evening, then showers likely after
midnight.
.FRIDAY...Northwest winds 10 to 15 knots, becoming north late in
the afternoon. A moderate chop on the bay, diminishing to light
chop late in the afternoon. A chance of showers.
.FRIDAY NIGHT...North winds 5 to 10 knots, becoming around
10 knots early in the morning. Light chop on the bay. A chance of
showers.

Winds and waves higher in and near thunderstorms.

$$

GMZ150-155-010615-
Gulf waters from Port Mansfield to the Rio Grande out 20 nm-
Gulf waters from Baffin Bay to Port Mansfield out 20 nm-
1158 AM CST Sun Nov 30 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...

.TONIGHT...North winds 15 to 20 knots, becoming around 20 knots
early this morning. Seas 6 to 8 feet, occasionally to 10 feet.
Wave Detail: North 7 feet at 6 seconds. A slight chance of
thunderstorms. A chance of showers this evening, then showers
likely after midnight.
.MONDAY...Northwest winds 15 to 20 knots, diminishing to 10 to
15 knots in the afternoon. Seas 5 to 7 feet, occasionally to
9 feet, subsiding to 4 to 5 feet in the afternoon. Wave Detail:
North 5 feet at 6 seconds. A chance of showers until late
afternoon, then a slight chance of showers late in the afternoon.
.MONDAY NIGHT...North winds 10 to 15 knots, increasing to 15 to
20 knots after midnight. Seas 4 to 6 feet, occasionally to
8 feet. Wave Detail: Northeast 6 feet at 6 seconds and north
2 feet at 3 seconds. A chance of showers in the evening, then
showers likely after midnight.
.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. Wave Detail: Northeast 6 feet at 7 seconds. A slight
chance of showers in the morning.
.TUESDAY NIGHT...Northeast winds 5 to 10 knots, becoming east
after midnight. Seas 3 to 5 feet. Wave Detail: Northeast 5 feet
at 7 seconds.
.WEDNESDAY...Southeast winds around 10 knots. Seas 2 to 4 feet.
Wave Detail: East 3 feet at 7 seconds. A chance of showers in the
afternoon.
.WEDNESDAY NIGHT...South winds around 10 knots. Seas 3 to 4 feet.
A chance of showers. A slight chance of thunderstorms after
midnight.
.THURSDAY...South winds 10 to 15 knots, becoming southeast late
in the afternoon. Seas 3 to 4 feet. A chance of showers in the
morning, then showers likely with a slight chance of
thunderstorms in the afternoon.
.THURSDAY NIGHT...East winds 10 to 15 knots, becoming north in
the late evening and early morning, then becoming northwest early
in the morning. Seas 3 to 5 feet. Showers likely with a chance of
thunderstorms in the evening, then showers likely after midnight.
.FRIDAY...Northwest winds 10 to 15 knots, becoming north late in
the afternoon. Seas 3 to 5 feet. A chance of showers.
.FRIDAY NIGHT...North winds 10 to 15 knots. Seas 3 to 4 feet. A
chance of showers with a slight chance of thunderstorms.

Winds and seas higher in and near thunderstorms.

$$

GMZ170-175-010615-
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-
1158 AM CST Sun Nov 30 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...

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

$$