Coastal Waters Forecast
Issued by NWS Brownsville, TX

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526
FZUS54 KBRO 110546
CWFBRO

Coastal Waters Forecast for the Lower Texas Coast
National Weather Service Brownsville TX
1246 AM CDT Sat Oct 11 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.

GMZ100-111830-
1246 AM CDT Sat Oct 11 2025

.SYNOPSIS...Conditions continue to improve tonight and through the
weekend as high pressure settles in. Gentle onshore winds,
moderate to slight seas, and low (less than 10 percent) rain
chances should prevail by the end of the weekend and continue
through next week. Tropical moisture increasing over the region
may bring a low (20 percent) chance of rain Tuesday.

$$

GMZ130-132-135-111830-
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-
1246 AM CDT Sat Oct 11 2025

.TODAY...North winds around 5 knots, becoming northeast this
afternoon. Smooth on the bay, increasing to light chop this
afternoon.
.TONIGHT...East winds 5 to 10 knots, becoming southeast after
midnight. Light chop on the bay, diminishing to smooth after
midnight.
.SUNDAY...Southeast winds around 5 knots, increasing to 5 to
10 knots in the afternoon. Smooth on the bay, increasing to light
chop in the afternoon.
.SUNDAY NIGHT...Southeast winds 5 to 10 knots. Light chop on the
bay.
.MONDAY...Southeast winds 5 to 10 knots, becoming east 10 to
15 knots in the afternoon. Light chop on the bay, increasing to a
moderate chop in the afternoon.
.MONDAY NIGHT...East winds 5 to 10 knots. Light chop on the bay.
A slight chance of showers after midnight.
.TUESDAY...East winds 5 to 10 knots. Light chop on the bay. A
slight chance of showers until late afternoon.
.TUESDAY NIGHT...East winds 5 to 10 knots. Light chop on the bay.
.WEDNESDAY...Northeast winds 5 to 10 knots. Light chop on the
bay.
.WEDNESDAY NIGHT...East winds 5 to 10 knots. Light chop on the
bay.

$$

GMZ150-155-111830-
Gulf waters from Port Mansfield to the Rio Grande out 20 nm-
Gulf waters from Baffin Bay to Port Mansfield out 20 nm-
1246 AM CDT Sat Oct 11 2025

.TODAY...Northeast winds 5 to 10 knots. Seas 3 to 4 feet. Wave
Detail: East 4 feet at 7 seconds.
.TONIGHT...East winds 5 to 10 knots, becoming southeast after
midnight. Seas 3 to 4 feet. Wave Detail: East 3 feet at
8 seconds.
.SUNDAY...Southeast winds 5 to 10 knots. Seas 3 to 4 feet. Wave
Detail: East 3 feet at 8 seconds.
.SUNDAY NIGHT...Southeast winds around 10 knots. Seas 3 to
4 feet. Wave Detail: East 3 feet at 8 seconds.
.MONDAY...Southeast winds 5 to 10 knots. Seas 2 to 4 feet. Wave
Detail: East 3 feet at 8 seconds.
.MONDAY NIGHT...East winds around 10 knots. Seas 2 to 3 feet.
Wave Detail: East 3 feet at 7 seconds and east 2 feet at
4 seconds. A slight chance of showers.
.TUESDAY...East winds around 10 knots. Seas 2 to 3 feet. A slight
chance of showers until late afternoon.
.TUESDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet.
.WEDNESDAY...Northeast winds 5 to 10 knots. Seas 2 to 3 feet.
.WEDNESDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet.

$$

GMZ170-175-111830-
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-
1246 AM CDT Sat Oct 11 2025

.TODAY...Northeast winds 5 to 10 knots. Seas 3 to 4 feet. Wave
Detail: East 4 feet at 7 seconds.
.TONIGHT...East winds 5 to 10 knots. Seas 3 to 4 feet. Wave
Detail: East 4 feet at 8 seconds.
.SUNDAY...East winds 5 to 10 knots. Seas 3 to 4 feet. Wave
Detail: East 4 feet at 8 seconds.
.SUNDAY NIGHT...Southeast winds around 10 knots. Seas 3 to
4 feet. Wave Detail: East 3 feet at 8 seconds.
.MONDAY...Southeast winds 5 to 10 knots. Seas 2 to 4 feet. Wave
Detail: East 3 feet at 8 seconds.
.MONDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: East 3 feet at 6 seconds. A slight chance of showers.
.TUESDAY...East winds around 10 knots. Seas 2 to 3 feet. A slight
chance of showers in the morning.
.TUESDAY NIGHT...East winds around 10 knots. Seas 2 to 3 feet.
.WEDNESDAY...Northeast winds around 10 knots. Seas 2 to 3 feet.
.WEDNESDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet.

$$