709
FZUS54 KBRO 240630
CWFBRO

Coastal Waters Forecast for the Lower Texas Coast
National Weather Service Brownsville TX
1230 AM CST Mon Nov 24 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.

GMZ100-241915-
1230 AM CST Mon Nov 24 2025

.SYNOPSIS...Adverse conditions will likely develop early this
morning into the afternoon 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.

$$

GMZ130-132-135-241915-
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-
1230 AM CST Mon Nov 24 2025

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

.TODAY...South winds around 20 knots diminishing to 15 to 20 knots
late. Rough becoming choppy on the bay.
.TONIGHT...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 east 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
10 to 15 knots early in the morning. Light chop on the bay,
increasing to a moderate chop early in the morning. A slight
chance of showers and thunderstorms 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. A moderate chop on the bay, increasing
to choppy in the afternoon. A slight chance of thunderstorms
early in the morning. A slight chance of thunderstorms early in
the afternoon. A chance of showers.
.WEDNESDAY NIGHT...Northeast winds 15 to 20 knots, diminishing to
10 to 15 knots in the late evening and overnight. Choppy on the
bay, diminishing to a moderate chop in the late evening and
overnight.
.THURSDAY...Northeast winds 10 to 15 knots. A moderate chop on
the bay.
.THURSDAY NIGHT...East winds around 10 knots. Light chop on the
bay.
.FRIDAY...Southeast winds 10 to 15 knots. A moderate chop on the
bay.
.FRIDAY NIGHT...Southeast winds 15 to 20 knots. Choppy on the
bay. A slight chance of showers.

Winds and waves higher in and near thunderstorms.

$$

GMZ150-155-241915-
Gulf waters from Port Mansfield to the Rio Grande out 20 nm-
Gulf waters from Baffin Bay to Port Mansfield out 20 nm-
1230 AM CST Mon Nov 24 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 5 to 7 feet, occasionally to
9 feet. Wave Detail: Southeast 6 feet at 6 seconds.
.TONIGHT...South winds 15 to 20 knots, diminishing to 10 to
15 knots early in the morning. Seas 3 to 5 feet. Wave Detail:
Southeast 4 feet at 6 seconds.
.TUESDAY...Southwest winds 5 to 10 knots, becoming east late in
the afternoon. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at
6 seconds. A slight chance of showers.
.TUESDAY NIGHT...East winds around 10 knots, becoming northeast
early in the morning. Seas 2 to 3 feet. Wave Detail: Southeast
3 feet at 6 seconds. A chance of showers. A slight chance of
thunderstorms late in the evening. A chance of thunderstorms
after midnight.
.WEDNESDAY...Northeast winds 15 to 20 knots. Seas 4 to 6 feet,
occasionally to 8 feet. Wave Detail: East 6 feet at 6 seconds. A
slight chance of thunderstorms until late afternoon. A chance of
showers.
.WEDNESDAY NIGHT...Northeast winds 15 to 20 knots. Seas 5 to
7 feet, occasionally to 9 feet, subsiding to 4 to 5 feet after
midnight. Wave Detail: East 6 feet at 6 seconds, becoming
northeast 5 feet at 6 seconds. A slight chance of showers in the
evening.
.THURSDAY...Northeast winds 10 to 15 knots. Seas 3 to 5 feet.
.THURSDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 5 feet.
.FRIDAY...Southeast winds around 15 knots. Seas 4 to 5 feet. A
slight chance of showers in the afternoon.
.FRIDAY NIGHT...Southeast winds 15 to 20 knots. Seas 5 to 7 feet,
occasionally to 9 feet. A slight chance of showers.

Winds and seas higher in and near thunderstorms.

$$

GMZ170-175-241915-
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-
1230 AM CST Mon Nov 24 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 5 to 7 feet, occasionally to
9 feet. Wave Detail: South 6 feet at 6 seconds.
.TONIGHT...South winds 15 to 20 knots, diminishing to 10 to
15 knots early in the morning. Seas 3 to 5 feet. Wave Detail:
South 4 feet at 6 seconds. A slight chance of showers and
thunderstorms early in the morning.
.TUESDAY...Southwest 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 in the morning. A slight chance
of thunderstorms until late afternoon. A slight chance of showers
in the afternoon.
.TUESDAY NIGHT...East winds 5 to 10 knots, becoming northeast
10 to 15 knots early in the morning. Seas 3 to 4 feet. Wave
Detail: Southeast 3 feet at 6 seconds and northeast 2 feet at
3 seconds. A chance of showers in the evening, then showers
likely with a chance of thunderstorms after midnight.
.WEDNESDAY...Northeast winds 15 to 20 knots. Seas 4 to 6 feet,
occasionally to 8 feet. Wave Detail: East 5 feet at 6 seconds.
Showers likely with a chance of thunderstorms in the morning,
then a chance of showers with a slight chance of thunderstorms in
the afternoon.
.WEDNESDAY NIGHT...Northeast winds 15 to 20 knots. Seas 5 to
7 feet, occasionally to 9 feet. Wave Detail: East 6 feet at
7 seconds. A slight chance of showers in the evening.
.THURSDAY...Northeast winds 15 to 20 knots. Seas 4 to 5 feet.
.THURSDAY NIGHT...East winds around 15 knots. Seas 4 to 5 feet.
.FRIDAY...Southeast winds around 15 knots. Seas 4 to 5 feet,
building to 5 to 7 feet, occasionally to 9 feet in the afternoon.
A slight chance of showers in the afternoon.
.FRIDAY NIGHT...Southeast winds 15 to 20 knots. Seas 6 to 8 feet,
occasionally to 10 feet. A chance of showers.

Winds and seas higher in and near thunderstorms.

$$