831
FZUS54 KBRO 291751
CWFBRO

Coastal Waters Forecast for the Lower Texas Coast
National Weather Service Brownsville TX
1151 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.

GMZ100-300615-
1151 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. Winds are
expected to pick up again Sunday evening, and more Small Craft
Advisories could be needed.

$$

GMZ130-132-135-300615-
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-
1151 AM CST Sat Nov 29 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM CST THIS EVENING...

.REST OF TODAY...South winds 20 to 25 knots with gusts up to
30 knots, diminishing to 15 to 20 knots late this afternoon.
Rough on the bay, diminishing to choppy late this afternoon.
.TONIGHT...South winds 10 to 15 knots. A moderate chop on the
bay. A slight chance of showers after midnight. A chance of
showers with a slight chance of thunderstorms early in the
morning.
.SUNDAY...North winds 10 to 15 knots, increasing to 15 to
20 knots in the afternoon. Choppy on the bay. Showers likely in
the morning. A chance of thunderstorms. A chance of showers in
the afternoon.
.SUNDAY NIGHT...North winds 15 to 20 knots. Choppy on the bay. A
slight chance of thunderstorms in the evening. Showers.
.MONDAY...Northwest winds 10 to 15 knots. A moderate chop on the
bay. A chance of showers, mainly in the morning.
.MONDAY NIGHT...North winds 5 to 10 knots, increasing to 10 to
15 knots after midnight. A moderate chop on the bay. A slight
chance of showers.
.TUESDAY...North winds 10 to 15 knots. A moderate chop on the
bay. A slight chance of showers in the morning.
.TUESDAY NIGHT...Northeast winds 5 to 10 knots. Light chop on the
bay.
.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...Southeast winds around 10 knots, becoming
south after midnight. Light chop on the bay. A chance of showers.

Winds and waves higher in and near thunderstorms.

$$

GMZ150-155-300615-
Gulf waters from Port Mansfield to the Rio Grande out 20 nm-
Gulf waters from Baffin Bay to Port Mansfield out 20 nm-
1151 AM CST Sat Nov 29 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM CST THIS EVENING...

.REST OF TODAY...South winds 20 to 25 knots with gusts up to
30 knots, diminishing to 15 to 20 knots late this afternoon. Seas
6 to 8 feet, occasionally to 10 feet. Wave Detail: Southeast
7 feet at 7 seconds. A slight chance of showers late this
afternoon.
.TONIGHT...South winds 15 to 20 knots, diminishing to 10 to
15 knots early in the morning. Seas 4 to 6 feet, occasionally to
8 feet. Wave Detail: Southeast 5 feet at 7 seconds. A slight
chance of showers and thunderstorms in the late evening and early
morning. A chance of showers with a slight chance of
thunderstorms early in the morning.
.SUNDAY...East winds 10 to 15 knots, becoming north late in the
morning, then increasing to 15 to 20 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 3 feet at 7 seconds,
becoming east 6 feet at 7 seconds. Showers with a chance of
thunderstorms until late afternoon, then a chance of showers with
a slight chance of thunderstorms late in the afternoon.
.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. A slight chance of
thunderstorms until early morning. Showers.
.MONDAY...Northwest winds 10 to 15 knots. Seas 4 to 6 feet,
occasionally to 8 feet. Wave Detail: North 4 feet at 6 seconds
and south 1 foot at 5 seconds. Showers likely, mainly in the
morning.
.MONDAY NIGHT...North winds 10 to 15 knots, increasing to 15 to
20 knots early in the morning. Seas 3 to 5 feet. Wave Detail:
North 3 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 4 to 6 feet, occasionally to
8 feet. A slight chance of showers in the morning.
.TUESDAY NIGHT...Northeast winds 10 to 15 knots, diminishing to
5 to 10 knots in the late evening and early morning, then
becoming east early in the morning. Seas 3 to 5 feet.
.WEDNESDAY...Southeast winds around 10 knots. Seas 3 to 4 feet. A
chance of showers in the afternoon.
.WEDNESDAY NIGHT...South winds 10 to 15 knots. Seas 3 to 4 feet.
A chance of showers in the evening, then showers likely after
midnight.

Winds and seas higher in and near thunderstorms.

$$

GMZ170-175-300615-
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-
1151 AM CST Sat Nov 29 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM CST THIS EVENING...

.REST OF 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 6 feet at 7 seconds. A slight
chance of showers late 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, subsiding to 4 to 5 feet after midnight. Wave Detail:
Southeast 4 feet at 7 seconds. A slight chance of showers until
early morning. A slight chance of thunderstorms after midnight. A
chance of showers early in the morning.
.SUNDAY...Southeast winds 10 to 15 knots, becoming northeast in
the afternoon, then becoming north 15 to 20 knots late in the
afternoon. Seas 3 to 4 feet, building to 4 to 6 feet,
occasionally to 8 feet in the afternoon. Wave Detail: Southeast
3 feet at 7 seconds, becoming east 6 feet at 7 seconds and south
2 feet at 6 seconds. Showers with a chance of thunderstorms.
.SUNDAY NIGHT...Northeast winds 15 to 20 knots, diminishing to
10 to 15 knots after midnight, then becoming north early in the
morning. Seas 5 to 7 feet, occasionally to 9 feet. Wave Detail:
Northeast 6 feet at 7 seconds and south 2 feet at 5 seconds.
Showers with a chance of thunderstorms until early morning, then
showers with a slight chance of thunderstorms early in the
morning.
.MONDAY...Northwest winds 10 to 15 knots. Seas 4 to 5 feet. Wave
Detail: North 4 feet at 6 seconds and south 1 foot 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...North winds 10 to 15 knots, increasing to 15 to
20 knots early in the morning. Seas 4 to 5 feet. Wave Detail:
Northwest 4 feet at 5 seconds and southeast 3 feet at 6 seconds.
A chance of showers in the evening, then showers likely after
midnight.
.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 5 feet. A slight chance of showers. A
slight chance of thunderstorms 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...South winds 10 to 15 knots. Seas 3 to 4 feet.
Showers likely.

Winds and seas higher in and near thunderstorms.

$$