088
FZUS54 KBRO 071737
CWFBRO

Coastal Waters Forecast for the Lower Texas Coast
National Weather Service Brownsville TX
1237 PM CDT Tue Oct 7 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.

GMZ100-080615-
1237 PM CDT Tue Oct 7 2025

.SYNOPSIS...Generally favorable marine conditions with light
onshore easterly flow continues into tonight. Weaker pressure
along the lower Texas coast arrives by Wednesday, with breezy
northeasterly winds through Friday. Long period swell is
expected to continue into next weekend. Expect an increasing
chance of showers and thunderstorms through Thursday before
diminishing on Friday.

$$

GMZ130-132-135-080615-
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-
1237 PM CDT Tue Oct 7 2025

.TONIGHT...East winds 5 to 10 knots. Light chop on the bay. A
chance of showers with a slight chance of thunderstorms early
this evening. A slight 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. A
chance of showers until late afternoon, then a slight chance of
showers late in the afternoon.
.WEDNESDAY NIGHT...Northeast winds 10 to 15 knots. A moderate
chop on the bay. A slight chance of showers in the evening, then
a chance of showers after midnight.
.THURSDAY...Northeast winds 15 to 20 knots. Choppy on the bay.
Showers likely until late afternoon. A slight chance of
thunderstorms in the afternoon. A chance of showers late in the
afternoon.
.THURSDAY NIGHT...Northeast winds 15 to 20 knots, diminishing to
10 to 15 knots after midnight. Choppy on the bay, diminishing to
a moderate chop after midnight. A chance of showers. A slight
chance of thunderstorms early in the morning.
.FRIDAY...Northeast winds 15 to 20 knots. Choppy on the bay. A
slight chance of showers.
.FRIDAY NIGHT...Northeast winds 10 to 15 knots, becoming east
5 to 10 knots after midnight. A moderate chop on the bay,
diminishing to light chop after midnight.
.SATURDAY...Northeast winds 5 to 10 knots. Light chop on the bay.
.SATURDAY NIGHT...East winds 5 to 10 knots, becoming southeast
after midnight. Light chop on the bay.
.SUNDAY...Southeast winds 5 to 10 knots. Light chop on the bay.
.SUNDAY NIGHT...Southeast winds 5 to 10 knots. Light chop on the
bay.

Winds and waves higher in and near thunderstorms.

$$

GMZ150-155-080615-
Gulf waters from Port Mansfield to the Rio Grande out 20 nm-
Gulf waters from Baffin Bay to Port Mansfield out 20 nm-
1237 PM CDT Tue Oct 7 2025

.TONIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 2 feet at 4 seconds and east 2 feet at
7 seconds. A chance of showers with a slight chance of
thunderstorms.
.WEDNESDAY...Northeast winds 10 to 15 knots. Seas 2 to 4 feet.
Wave Detail: East 3 feet at 6 seconds. A slight chance of
thunderstorms. A chance of showers.
.WEDNESDAY NIGHT...Northeast winds 15 to 20 knots. Seas 3 to
4 feet. Wave Detail: East 4 feet at 6 seconds. A chance of
showers.
.THURSDAY...Northeast winds 15 to 20 knots. Seas 4 to 5 feet.
Wave Detail: East 5 feet at 6 seconds. Showers likely until late
afternoon. A slight chance of thunderstorms in the afternoon. A
chance of showers late in the afternoon.
.THURSDAY NIGHT...Northeast winds 15 to 20 knots. Seas 4 to
5 feet. Wave Detail: East 5 feet at 7 seconds. A chance of
showers. A slight chance of thunderstorms early in the morning.
.FRIDAY...Northeast winds 15 to 20 knots. Seas 4 to 5 feet. Wave
Detail: East 5 feet at 7 seconds. A slight chance of
thunderstorms early in the morning. A slight chance of showers.
.FRIDAY NIGHT...Northeast winds 10 to 15 knots. Seas 3 to 4 feet.
A slight chance of showers.
.SATURDAY...Northeast winds around 10 knots. Seas 3 to 4 feet.
.SATURDAY NIGHT...East winds around 10 knots, becoming southeast
after midnight. Seas 3 to 4 feet.
.SUNDAY...Southeast winds 5 to 10 knots. Seas 3 to 4 feet.
.SUNDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to 4 feet.

Winds and seas higher in and near thunderstorms.

$$

GMZ170-175-080615-
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-
1237 PM CDT Tue Oct 7 2025

.TONIGHT...East winds 10 to 15 knots. Seas 2 to 4 feet. Wave
Detail: East 2 feet at 4 seconds and east 2 feet at 7 seconds. A
chance of showers with a slight chance of thunderstorms.
.WEDNESDAY...Northeast winds 10 to 15 knots. Seas 3 to 4 feet.
Wave Detail: East 4 feet at 5 seconds. A slight chance of
thunderstorms until late afternoon. A chance of showers.
.WEDNESDAY NIGHT...Northeast winds 15 to 20 knots. Seas 3 to
5 feet. Wave Detail: East 4 feet at 6 seconds. A chance of
showers.
.THURSDAY...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 slight chance of thunderstorms.
.THURSDAY NIGHT...Northeast winds 15 to 20 knots. Seas 4 to
6 feet, occasionally to 8 feet. Wave Detail: East 5 feet at
7 seconds. Showers likely early in the evening, then a chance of
showers in the late evening and early morning. A slight chance of
showers and thunderstorms early in the morning.
.FRIDAY...Northeast winds 15 to 20 knots. Seas 4 to 6 feet,
occasionally to 8 feet. Wave Detail: East 5 feet at 7 seconds. A
slight chance of thunderstorms early in the morning. A slight
chance of showers.
.FRIDAY NIGHT...Northeast winds 10 to 15 knots. Seas 3 to 5 feet.
A slight chance of showers until early morning.
.SATURDAY...Northeast winds 10 to 15 knots. Seas 3 to 4 feet.
.SATURDAY NIGHT...East winds around 10 knots. Seas 3 to 4 feet.
.SUNDAY...East winds 5 to 10 knots. Seas 3 to 4 feet.
.SUNDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to 4 feet.
A slight chance of showers late in the evening.

Winds and seas higher in and near thunderstorms.

$$