189
FZUS54 KBRO 230704
CWFBRO

Coastal Waters Forecast for the Lower Texas Coast
National Weather Service Brownsville TX
104 AM CST Sun Nov 23 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.

GMZ100-231930-
104 AM CST Sun Nov 23 2025

.SYNOPSIS...Generally favorable marine conditions are expected to
continue into this afternoon. Adverse conditions will likely
develop this evening into Monday as the pressure gradient
strengthens along the lower Texas coast. Generally favorable
conditions are briefly forecast to return Tuesday before the next
frontal passage by Wednesday brings moderate northeasterly winds
and briefly elevated seas. The chance of showers and
thunderstorms continues into Wednesday.


$$

GMZ130-132-135-231930-
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-
104 AM CST Sun Nov 23 2025

...SMALL CRAFT EXERCISE CAUTION THIS AFTERNOON THROUGH TONIGHT...

.TODAY...Southeast winds 5 to 10 knots, increasing to 10 to
15 knots this afternoon. A moderate chop on the bay. A chance of
showers with a slight chance of thunderstorms this morning, then
a slight chance of showers early this afternoon.
.TONIGHT...Southeast winds 15 to 20 knots. Choppy on the bay.
.MONDAY...South winds 15 to 20 knots. Choppy on the bay.
.MONDAY NIGHT...South winds 10 to 15 knots, diminishing to 5 to
10 knots early in the morning. A moderate chop on the bay,
diminishing to light chop early in the morning.
.TUESDAY...South winds 5 to 10 knots, becoming southeast in the
afternoon. Light chop on the bay, diminishing to smooth late in
the morning, then increasing to light chop in the afternoon.
.TUESDAY NIGHT...East winds 5 to 10 knots, becoming northeast
early in the morning. Light chop on the bay. A slight chance of
showers in the evening. A slight chance of thunderstorms late in
the evening, then a chance of showers and thunderstorms after
midnight.
.WEDNESDAY...Northeast winds 10 to 15 knots, increasing to 15 to
20 knots in the afternoon. Choppy on the bay. A chance of showers
and thunderstorms.
.WEDNESDAY NIGHT...Northeast winds 10 to 15 knots. A moderate
chop on the bay. A slight chance of showers.
.THURSDAY...Northeast winds 10 to 15 knots. A moderate chop on
the bay. A slight chance of showers.
.THURSDAY NIGHT...East winds around 10 knots. Light chop on the
bay.

Winds and waves higher in and near thunderstorms.

$$

GMZ150-155-231930-
Gulf waters from Port Mansfield to the Rio Grande out 20 nm-
Gulf waters from Baffin Bay to Port Mansfield out 20 nm-
104 AM CST Sun Nov 23 2025

...SMALL CRAFT EXERCISE CAUTION THIS AFTERNOON THROUGH TONIGHT...

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

Winds and seas higher in and near thunderstorms.

$$

GMZ170-175-231930-
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-
104 AM CST Sun Nov 23 2025

...SMALL CRAFT EXERCISE CAUTION THIS AFTERNOON THROUGH TONIGHT...

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

Winds and seas higher in and near thunderstorms.

$$