687
FZUS54 KBRO 081726
CWFBRO

Coastal Waters Forecast for the Lower Texas Coast
National Weather Service Brownsville TX
1226 PM CDT Sun Mar 8 2026

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.

GMZ100-090615-
1226 PM CDT Sun Mar 8 2026

.SYNOPSIS...Generally favorable marine conditions for the next
couple of days with light southeast winds and low to moderate
seas. The pressure gradient is expected to tighten again around
Tuesday that could see the return of adverse conditions for the
waters that in turn could bring Small Craft Exercise Caution
conditions and possibly Small Craft Advisory conditions. Showers
are possible over the waters this afternoon into this evening.


$$

GMZ130-132-135-090615-
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-
1226 PM CDT Sun Mar 8 2026

.REST OF TODAY...East winds 5 to 10 knots. Light chop on the bay.
A chance of showers and thunderstorms early this afternoon, then
a slight chance of showers and thunderstorms late this afternoon.
.TONIGHT...Southeast winds 5 to 10 knots, becoming around 5 knots
after midnight. Light chop on the bay. A slight chance of showers
until early morning.
.MONDAY...South winds 5 to 10 knots, becoming southeast 10 to
15 knots in the afternoon. A moderate chop on the bay.
.MONDAY NIGHT...Southeast winds 10 to 15 knots. A moderate chop
on the bay.
.TUESDAY...Southeast winds 10 to 15 knots, increasing to 15 to
20 knots with gusts up to 30 knots in the afternoon. A moderate
chop on the bay, increasing to choppy in the afternoon.
.TUESDAY NIGHT...Southeast winds 15 to 20 knots with gusts up to
30 knots, becoming south 10 to 15 knots early in the morning.
Choppy on the bay, diminishing to a moderate chop early in the
morning.
.WEDNESDAY...Southwest winds around 10 knots, becoming northwest
early in the afternoon, then becoming northeast late in the
afternoon. Light chop on the bay. A slight chance of showers in
the morning.
.WEDNESDAY NIGHT...Northeast winds 5 to 10 knots, becoming north
15 to 20 knots after midnight. Choppy on the bay.
.THURSDAY...North winds 15 to 20 knots, becoming northeast 10 to
15 knots late in the afternoon. Choppy on the bay, diminishing to
a moderate chop late in the afternoon.
.THURSDAY NIGHT...Northeast winds 10 to 15 knots, becoming east
5 to 10 knots in the late evening and early morning, then
becoming southeast early in the morning. A moderate chop on the
bay, diminishing to light chop in the late evening and early
morning, then diminishing to smooth early in the morning.

Winds and waves higher in and near thunderstorms.

$$

GMZ150-155-090615-
Gulf waters from Port Mansfield to the Rio Grande out 20 nm-
Gulf waters from Baffin Bay to Port Mansfield out 20 nm-
1226 PM CDT Sun Mar 8 2026

.REST OF TODAY...East winds 5 to 10 knots. Seas 3 to 4 feet. Wave
Detail: East 4 feet at 7 seconds. A slight chance of
thunderstorms. A chance of showers early this afternoon, then a
slight chance of showers late this afternoon.
.TONIGHT...East winds 5 to 10 knots, becoming southeast after
midnight. Seas 3 to 4 feet. Wave Detail: East 3 feet at
7 seconds. A slight chance of showers until early morning.
.MONDAY...South winds 5 to 10 knots, becoming southeast 10 to
15 knots in the afternoon. Seas 3 to 4 feet. Wave Detail: East
3 feet at 7 seconds.
.MONDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to 4 feet.
Wave Detail: Southeast 4 feet at 7 seconds.
.TUESDAY...South winds 15 to 20 knots. Gusts to 30 knots in the
afternoon. Seas 4 to 5 feet. Wave Detail: Southeast 5 feet at
7 seconds.
.TUESDAY NIGHT...South winds 15 to 20 knots. Seas 4 to 6 feet,
occasionally to 8 feet. Wave Detail: Southeast 5 feet at
7 seconds. A slight chance of showers early in the morning.
.WEDNESDAY...South winds 10 to 15 knots, becoming southwest 5 to
10 knots early in the afternoon, then becoming southeast late in
the afternoon. Seas 3 to 5 feet. A slight chance of showers in
the morning.
.WEDNESDAY NIGHT...East winds around 5 knots, becoming northeast
late in the evening, then becoming north 15 to 20 knots after
midnight. Seas 3 to 4 feet, building to 5 to 7 feet, occasionally
to 9 feet after midnight.
.THURSDAY...North winds 15 to 20 knots, becoming northeast 10 to
15 knots late in the afternoon. Seas 7 to 10 feet, occasionally
to 13 feet, subsiding to 6 to 8 feet, occasionally to 10 feet in
the afternoon.
.THURSDAY NIGHT...Northeast winds 10 to 15 knots, becoming east
5 to 10 knots after midnight. Seas 4 to 6 feet, occasionally to
8 feet.

Winds and seas higher in and near thunderstorms.

$$

GMZ170-175-090615-
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-
1226 PM CDT Sun Mar 8 2026

.REST OF TODAY...Southeast winds 5 to 10 knots. Seas 3 to 4 feet.
Wave Detail: East 4 feet at 7 seconds. A slight chance of showers
and thunderstorms early this afternoon.
.TONIGHT...Southeast winds 5 to 10 knots, becoming south early in
the morning. Seas 3 to 4 feet. Wave Detail: East 3 feet at
7 seconds.
.MONDAY...South winds around 10 knots. Seas 3 to 4 feet. Wave
Detail: Southeast 4 feet at 7 seconds.
.MONDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to 5 feet.
Wave Detail: Southeast 4 feet at 7 seconds.
.TUESDAY...Southeast winds 15 to 20 knots. Seas 4 to 6 feet,
occasionally to 8 feet. Wave Detail: Southeast 5 feet at
6 seconds.
.TUESDAY NIGHT...Southeast winds 15 to 20 knots. Seas 6 to
8 feet, occasionally to 10 feet. Wave Detail: Southeast 6 feet at
7 seconds.
.WEDNESDAY...South winds 10 to 15 knots, becoming southwest 5 to
10 knots in the afternoon. Seas 5 to 7 feet, occasionally to
9 feet, subsiding to 4 to 5 feet in the afternoon. A slight
chance of showers in the morning.
.WEDNESDAY NIGHT...Southeast winds around 5 knots, becoming
northeast late in the evening, then becoming north 15 to 20 knots
after midnight, increasing to 20 to 25 knots with gusts up to
30 knots early in the morning. Seas 4 to 5 feet, building to 6 to
9 feet, occasionally to 11 feet after midnight.
.THURSDAY...North winds 20 to 25 knots with gusts up to 30 knots,
diminishing to 15 to 20 knots in the afternoon. Seas 8 to
11 feet, occasionally to 14 feet, subsiding to 6 to 9 feet,
occasionally to 11 feet in the afternoon.
.THURSDAY NIGHT...Northeast winds 10 to 15 knots, becoming east
5 to 10 knots after midnight. Seas 5 to 7 feet, occasionally to
9 feet, subsiding to 4 to 5 feet after midnight.

Winds and seas higher in and near thunderstorms.

$$