016
FZUS54 KBRO 010552
CWFBRO

Coastal Waters Forecast for the Lower Texas Coast
National Weather Service Brownsville TX
1152 PM 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.

GMZ100-011815-
1152 PM CST Sun Nov 30 2025

.SYNOPSIS...Hazardous marine conditions continue into Monday
morning. A Small Craft Advisory is in effect until noon Monday.
Conditions will briefly improve Monday afternoon, however adverse
conditions will likely develop Monday night into Tuesday.
Generally favorable conditions are forecast to return by Wednesday.
A cold front late week could result in more adverse marine
conditions.

$$

GMZ130-132-135-011815-
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-
1152 PM CST Sun Nov 30 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY MORNING...

.TODAY...North winds 10 to 15 knots, increasing to 15 to 20 knots
this afternoon. A moderate chop on the bay, increasing to choppy
this afternoon. Showers likely with a chance of thunderstorms
this morning, then a chance of showers with a slight chance of
thunderstorms this afternoon.
.TONIGHT...North winds 20 to 25 knots with gusts up to 30 knots,
diminishing to 15 to 20 knots after midnight. Rough on the bay,
diminishing to choppy after midnight. A chance of showers. A
slight chance of thunderstorms in the late evening and overnight.
.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 with a slight
chance of thunderstorms 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 slight chance of
showers late in the evening. A chance of showers after midnight,
then a slight chance of showers early in the morning.
.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
southeast after midnight. Light chop on the bay, diminishing to
smooth in the late evening and overnight.
.WEDNESDAY...Southeast winds 5 to 10 knots. Light chop on the
bay. A chance of showers in the afternoon.
.WEDNESDAY NIGHT...South winds 5 to 10 knots. Light chop on the
bay. A chance of showers.
.THURSDAY...South winds 5 to 10 knots, becoming southeast 10 to
15 knots early in the afternoon, then becoming northeast late in
the afternoon. Light chop on the bay, increasing to a moderate
chop in the afternoon. A chance of showers. A chance of
thunderstorms in the afternoon.
.THURSDAY NIGHT...North winds 10 to 15 knots. A moderate chop on
the bay. Showers likely. A chance of thunderstorms, mainly in the
evening.

Winds and waves higher in and near thunderstorms.

$$

GMZ150-155-011815-
Gulf waters from Port Mansfield to the Rio Grande out 20 nm-
Gulf waters from Baffin Bay to Port Mansfield out 20 nm-
1152 PM CST Sun Nov 30 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY MORNING...

.TODAY...South winds 10 to 15 knots, becoming north 15 to
20 knots with gusts up to 30 knots late this morning, then
increasing to 20 to 25 knots with gusts up to 30 knots this
afternoon. Seas 3 to 4 feet, building to 4 to 6 feet,
occasionally to 8 feet this afternoon. Wave Detail: Southeast
4 feet at 7 seconds, becoming east 6 feet at 7 seconds. Showers
with a chance of thunderstorms this morning, then a chance of
showers with a slight chance of thunderstorms this afternoon.
.TONIGHT...North winds 20 to 25 knots with gusts up to 30 knots,
diminishing to 15 to 20 knots after midnight. Seas 6 to 8 feet,
occasionally to 10 feet. Wave Detail: Northeast 7 feet at
7 seconds and southeast 2 feet at 6 seconds. A slight chance of
thunderstorms.
.MONDAY...North winds 15 to 20 knots, becoming northwest 10 to
15 knots in the afternoon. Seas 6 to 8 feet, occasionally to
10 feet, subsiding to 4 to 6 feet, occasionally to 8 feet in the
afternoon. Wave Detail: North 6 feet at 6 seconds and southeast
1 foot at 6 seconds, becoming northeast 5 feet at 7 seconds and
southeast 1 foot at 6 seconds. Patchy fog early in the morning. A
chance of showers with a slight chance of thunderstorms 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 after midnight. Seas 4 to 5 feet, building to 5 to
7 feet, occasionally to 9 feet after midnight. Wave Detail:
Northeast 4 feet at 7 seconds, becoming northeast 6 feet at
6 seconds. A slight chance of showers early in the evening, then
a chance of showers in the late evening and early morning. A
slight chance of showers early in the morning.
.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: Northeast 7 feet at 7 seconds. A slight
chance of showers in the morning.
.TUESDAY NIGHT...Northeast winds around 10 knots, becoming
southeast after midnight. Seas 3 to 5 feet, subsiding to 2 to
3 feet after midnight. Wave Detail: Northeast 4 feet at
7 seconds, becoming northeast 3 feet at 7 seconds.
.WEDNESDAY...Southeast winds 10 to 15 knots. Seas 2 to 3 feet. A
slight chance of showers in the morning, then a chance of showers
in the afternoon.
.WEDNESDAY NIGHT...South winds 10 to 15 knots. Seas 3 to 4 feet.
A chance of showers.
.THURSDAY...South winds around 10 knots, becoming southeast late
in the afternoon. Seas 3 to 4 feet. A chance of showers in the
morning, then showers likely with a chance of thunderstorms in
the afternoon.
.THURSDAY NIGHT...Northeast winds 10 to 15 knots, becoming north
in the late evening and overnight. Seas 3 to 5 feet. Showers
likely with a chance of thunderstorms in the evening, then
showers with a slight chance of thunderstorms after midnight.

Winds and seas higher in and near thunderstorms.

$$

GMZ170-175-011815-
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-
1152 PM CST Sun Nov 30 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY MORNING...

.TODAY...South winds 5 to 10 knots, becoming east 10 to 15 knots
late this morning, then becoming north 15 to 20 knots this
afternoon. Seas 3 to 4 feet, building to 5 to 7 feet,
occasionally to 9 feet this afternoon. Wave Detail: Southeast
4 feet at 6 seconds, becoming north 4 feet at 7 seconds and
southeast 2 feet at 7 seconds. Showers with a chance of
thunderstorms.
.TONIGHT...Northeast winds 15 to 20 knots. Seas 5 to 7 feet,
occasionally to 9 feet. Wave Detail: North 7 feet at 7 seconds
and south 2 feet at 6 seconds. Patchy fog early in the evening. A
chance of thunderstorms. Showers.
.MONDAY...North winds 15 to 20 knots, diminishing to 10 to
15 knots in the afternoon. Seas 5 to 7 feet, occasionally to
9 feet. Wave Detail: North 4 feet at 7 seconds and south 1 foot
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 20 to
25 knots. Seas 4 to 5 feet, building to 5 to 7 feet, occasionally
to 9 feet after midnight. Wave Detail: North 4 feet at 7 seconds
and south 1 foot at 5 seconds, becoming north 6 feet at
6 seconds. A chance of showers in the evening, then showers
likely after midnight. A chance of showers early in the morning.
.TUESDAY...North winds 15 to 20 knots, becoming northeast 10 to
15 knots late in the afternoon. Seas 6 to 8 feet, occasionally to
10 feet. Wave Detail: North 7 feet at 6 seconds. A chance of
showers, mainly in the morning.
.TUESDAY NIGHT...Northeast winds 10 to 15 knots, becoming
southeast early in the morning. 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. A
slight chance of showers in the morning, then showers likely in
the afternoon. A slight chance of thunderstorms late in the
afternoon.
.WEDNESDAY NIGHT...South winds around 15 knots. Seas 3 to 4 feet.
Showers likely, mainly in the evening.
.THURSDAY...South winds 10 to 15 knots. Seas 3 to 4 feet. A
chance of showers in the morning, then showers likely with a
chance of thunderstorms in the afternoon.
.THURSDAY NIGHT...South winds 10 to 15 knots, becoming northwest
in the late evening and early morning, then becoming north early
in the morning. Seas 3 to 5 feet. Showers with a chance of
thunderstorms.

Winds and seas higher in and near thunderstorms.

$$