373
FZUS54 KBRO 291723
CWFBRO

Coastal Waters Forecast for the Lower Texas Coast
National Weather Service Brownsville TX
1223 PM CDT Fri Aug 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-
1223 PM CDT Fri Aug 29 2025

.SYNOPSIS...Favorable marine conditions continue as mainly light
to gentle, moderate in the afternoon, southeasterly winds and
slight (1-2 feet) seas prevail. Chances of showers and
thunderstorms increase to a medium to likely (30-60%) chance
Monday into Tuesday.

$$

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-
1223 PM CDT Fri Aug 29 2025

.REST OF TODAY...Southeast winds 10 to 15 knots. A moderate chop
on the bay.
.TONIGHT...Southeast winds 10 to 15 knots, becoming south early
in the morning. A moderate chop on the bay, diminishing to light
chop early in the morning.
.SATURDAY...South winds 5 to 10 knots, becoming southeast 10 to
15 knots in the afternoon. A moderate chop on the bay.
.SATURDAY NIGHT...Southeast winds 10 to 15 knots, diminishing to
5 to 10 knots after midnight. Light chop on the bay.
.SUNDAY...South winds 5 to 10 knots, becoming southeast early in
the afternoon, then increasing to 10 to 15 knots late in the
afternoon. Light chop on the bay, increasing to a moderate chop
late in the afternoon.
.SUNDAY NIGHT...Southeast winds 5 to 10 knots, becoming around
5 knots early in the morning. Light chop on the bay, diminishing
to smooth early in the morning. A slight chance of showers and
thunderstorms after midnight.
.MONDAY...South winds around 5 knots, becoming east in the
afternoon. Smooth on the bay, increasing to light chop in the
afternoon. A chance of showers and thunderstorms.
.MONDAY NIGHT...East winds 5 to 10 knots, becoming south early in
the morning. Light chop on the bay, diminishing to smooth after
midnight. A chance of showers and thunderstorms early in the
evening. A slight chance of showers and thunderstorms late in the
evening, then a chance of showers and thunderstorms after
midnight.
.TUESDAY...Northwest winds around 5 knots, becoming northeast in
the afternoon. Smooth on the bay, increasing to light chop in the
afternoon. A chance of showers and thunderstorms.
.TUESDAY NIGHT...East winds 5 to 10 knots, becoming southwest
early in the morning. Light chop on the bay, diminishing to
smooth after midnight. A chance of showers and thunderstorms
early in the evening, then a slight chance of showers and
thunderstorms in the late evening and overnight.

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-
1223 PM CDT Fri Aug 29 2025

.REST OF TODAY...Southeast winds around 10 knots. Seas 2 to
3 feet. Wave Detail: Southeast 2 feet at 5 seconds.
.TONIGHT...Southeast winds 10 to 15 knots, becoming south early
in the morning. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet
at 5 seconds.
.SATURDAY...South winds 5 to 10 knots, becoming southeast in the
afternoon. Seas 2 to 3 feet. Wave Detail: South 2 feet at
5 seconds.
.SATURDAY NIGHT...Southeast winds around 10 knots. Seas 2 to
3 feet. Wave Detail: Southeast 2 feet at 4 seconds and east
1 foot at 8 seconds.
.SUNDAY...South winds 5 to 10 knots, becoming southeast in the
afternoon. Seas 2 to 3 feet. Wave Detail: South 2 feet at
4 seconds and east 1 foot at 8 seconds.
.SUNDAY NIGHT...Southeast winds 5 to 10 knots. Seas 2 to 3 feet.
Wave Detail: Southeast 2 feet at 4 seconds and east 2 feet at
8 seconds. A slight chance of showers and thunderstorms after
midnight.
.MONDAY...South winds around 5 knots, becoming east in the
afternoon. Seas 2 to 3 feet. A chance of showers and
thunderstorms until late afternoon, then a slight chance of
showers and thunderstorms late in the afternoon.
.MONDAY NIGHT...East winds 5 to 10 knots, becoming south early in
the morning. Seas 2 to 3 feet. A slight chance of showers and
thunderstorms in the evening, then a chance of showers and
thunderstorms after midnight.
.TUESDAY...Northwest winds around 5 knots, becoming northeast
late in the afternoon. Seas 2 to 3 feet. A chance of showers and
thunderstorms until late afternoon, then a slight chance of
showers and thunderstorms late in the afternoon.
.TUESDAY NIGHT...East winds around 10 knots, becoming 5 to
10 knots late in the evening, then becoming southeast after
midnight, becoming southwest early in the morning. Seas 2 to
3 feet. A slight chance of showers and thunderstorms.

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-
1223 PM CDT Fri Aug 29 2025

.REST OF TODAY...Southeast winds 5 to 10 knots. Seas 2 to 3 feet.
Wave Detail: Southeast 2 feet at 6 seconds.
.TONIGHT...Southeast winds around 10 knots, becoming south early
in the morning. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet
at 6 seconds.
.SATURDAY...South winds 5 to 10 knots, becoming southeast late in
the afternoon. Seas 2 to 3 feet. Wave Detail: South 2 feet at
5 seconds and east 1 foot at 9 seconds.
.SATURDAY NIGHT...Southeast winds 5 to 10 knots, becoming south
early in the morning. Seas 2 to 3 feet. Wave Detail: Southeast
2 feet at 4 seconds and east 1 foot at 8 seconds.
.SUNDAY...Southeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: South 2 feet at 4 seconds and east 1 foot at 8 seconds. A
slight chance of showers and thunderstorms until late afternoon.
.SUNDAY NIGHT...Southeast winds 5 to 10 knots. Seas 2 to 3 feet.
Wave Detail: Southeast 2 feet at 4 seconds and southeast 2 feet
at 8 seconds. A chance of showers with a slight chance of
thunderstorms after midnight.
.MONDAY...South winds around 5 knots, becoming northeast in the
afternoon. Seas 2 to 3 feet. A chance of showers and
thunderstorms.
.MONDAY NIGHT...East winds 5 to 10 knots, becoming south early in
the morning. Seas 2 to 3 feet. A chance of showers and
thunderstorms early in the evening. A slight chance of showers
late in the evening, then a chance of showers and thunderstorms
after midnight.
.TUESDAY...Northwest winds around 5 knots, becoming northeast
late in the afternoon. Seas 2 to 3 feet. A chance of showers and
thunderstorms until late afternoon, then a slight chance of
showers and thunderstorms late in the afternoon.
.TUESDAY NIGHT...Northeast winds around 10 knots, becoming east
late in the evening, then becoming southeast after midnight,
becoming southwest early in the morning. Seas 2 to 3 feet. A
slight chance of showers and thunderstorms early in the evening.
A chance of showers with a slight chance of thunderstorms after
midnight.

Winds and seas higher in and near thunderstorms.

$$