268
FZUS54 KBRO 081738
CWFBRO

Coastal Waters Forecast for the Lower Texas Coast
National Weather Service Brownsville TX
1238 PM CDT Wed Oct 8 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.

GMZ100-090615-
1238 PM CDT Wed Oct 8 2025

.SYNOPSIS...The pressure gradient will strengthen into Thursday
resulting in moderate northeasterly winds and building seas into
late 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.

$$

GMZ130-132-135-090615-
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-
1238 PM CDT Wed Oct 8 2025

...SMALL CRAFT EXERCISE CAUTION THIS AFTERNOON...

.TODAY...Northeast winds around 15 knots. A moderate chop on the
bay. A chance of showers and thunderstorms until late afternoon,
then a slight chance of showers and thunderstorms late this
afternoon.
.TONIGHT...Northeast winds 10 to 15 knots. A moderate chop on the
bay. A slight chance of showers.
.THURSDAY...Northeast winds 15 to 20 knots. Choppy on the bay. A
chance of showers. A slight chance of thunderstorms in the
afternoon.
.THURSDAY NIGHT...Northeast winds 10 to 15 knots. A moderate chop
on the bay. A chance of showers.
.FRIDAY...Northeast winds 15 to 20 knots. Choppy on the bay. A
chance of showers until late afternoon, then a slight chance of
showers late in the afternoon.
.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. A slight chance of
showers early in the evening.
.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.

$$

GMZ150-155-090615-
Gulf waters from Port Mansfield to the Rio Grande out 20 nm-
Gulf waters from Baffin Bay to Port Mansfield out 20 nm-
1238 PM CDT Wed Oct 8 2025

.TODAY...Northeast winds 10 to 15 knots. Seas 2 to 4 feet. Wave
Detail: East 4 feet at 6 seconds. A chance of thunderstorms this
morning. A chance of showers. A slight chance of thunderstorms
this afternoon.
.TONIGHT...Northeast winds 10 to 15 knots. Seas 4 to 5 feet. Wave
Detail: East 4 feet at 6 seconds. A slight chance of showers in
the evening, then a chance of showers after midnight.
.THURSDAY...Northeast winds 10 to 15 knots, increasing to 15 to
20 knots in the afternoon. Seas 4 to 6 feet, occasionally to
8 feet. Wave Detail: East 5 feet at 7 seconds. A chance of
showers. A slight chance of thunderstorms in the afternoon.
.THURSDAY 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 5 feet at 7 seconds. A chance of
showers.
.FRIDAY...Northeast winds 15 to 20 knots. Seas 4 to 5 feet. Wave
Detail: Southeast 5 feet at 7 seconds. A chance of showers until
late afternoon, then a slight chance of showers late in the
afternoon.
.FRIDAY NIGHT...Northeast winds 10 to 15 knots, becoming east
5 to 10 knots after midnight. Seas 3 to 5 feet. Wave Detail: East
4 feet at 7 seconds. A slight chance of showers early in the
evening.
.SATURDAY...Northeast winds 5 to 10 knots. Seas 3 to 4 feet.
.SATURDAY NIGHT...East winds 5 to 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 around 10 knots. Seas 3 to
4 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-
1238 PM CDT Wed Oct 8 2025

.TODAY...Northeast winds 10 to 15 knots. Seas 3 to 4 feet. Wave
Detail: East 4 feet at 5 seconds. A chance of thunderstorms this
morning. A chance of showers.
.TONIGHT...Northeast winds 15 to 20 knots. Seas 4 to 5 feet. Wave
Detail: East 5 feet at 6 seconds. A slight chance of showers
early in the evening, then a chance of showers in the late
evening and overnight.
.THURSDAY...Northeast winds 15 to 20 knots. Seas 5 to 7 feet,
occasionally to 9 feet. Wave Detail: East 5 feet at 6 seconds. A
chance of showers.
.THURSDAY NIGHT...Northeast winds 15 to 20 knots. Seas 5 to
7 feet, occasionally to 9 feet. Wave Detail: East 5 feet at
7 seconds. A chance of showers.
.FRIDAY...Northeast winds 15 to 20 knots. Seas 5 to 7 feet,
occasionally to 9 feet. Wave Detail: East 5 feet at 7 seconds. A
chance of showers.
.FRIDAY NIGHT...Northeast winds 10 to 15 knots. Seas 4 to 5 feet.
Wave Detail: East 5 feet at 7 seconds. A chance of showers early
in the evening.
.SATURDAY...Northeast winds 5 to 10 knots. Seas 3 to 5 feet.
.SATURDAY NIGHT...East winds around 10 knots, becoming southeast
after midnight. Seas 4 to 5 feet.
.SUNDAY...Southeast winds 5 to 10 knots. Seas 3 to 4 feet.
.SUNDAY NIGHT...Southeast winds around 10 knots. Seas 3 to
4 feet.

Winds and seas higher in and near thunderstorms.

$$