Coastal Waters Forecast
Issued by NWS Brownsville, TX

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754
FZUS54 KBRO 170624
CWFBRO

Coastal Waters Forecast for the Lower Texas Coast
National Weather Service Brownsville TX
1224 AM CST Mon Nov 17 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.

GMZ100-171930-
1224 AM CST Mon Nov 17 2025

.SYNOPSIS...A gradually more enhanced pressure gradient over
the western Gulf of America will produce increasing winds and
building seas along the Lower Texas Coast during the forecast.
Small Craft Should Exercise Caution and Small Craft Advisory
are likely to be needed, especially around the middle of the
week.

$$

GMZ130-132-135-171930-
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-
1224 AM CST Mon Nov 17 2025

...SMALL CRAFT SHOULD EXERCISE CAUTION...

.TODAY...South winds 10 to 15 knots, becoming southeast 15 to
20 knots this afternoon. A moderate chop on the bay, increasing
to choppy bay waters this afternoon.
.TONIGHT...Southeast winds 10 to 15 knots. A moderate chop on the
bay.
.TUESDAY...Southeast winds 10 to 15 knots. A moderate chop on the
bay.
.TUESDAY NIGHT...Southeast winds 10 to 15 knots. A moderate chop
on the bay. A slight chance of showers after midnight.
.WEDNESDAY...Southeast winds 10 to 15 knots, increasing to 15 to
20 knots in the afternoon. A moderate chop on the bay, increasing
to choppy bay waters in the afternoon.
.WEDNESDAY NIGHT...Southeast winds 15 to 20 knots. Choppy bay
waters. A slight chance of showers after midnight.
.THURSDAY...Southeast winds 15 to 20 knots. Choppy bay waters. A
slight chance of showers in the morning.
.THURSDAY NIGHT...South winds 15 to 20 knots. Choppy bay waters.
A slight chance of showers after midnight.
.FRIDAY...South winds 10 to 15 knots, becoming southeast in the
afternoon. A moderate chop on the bay. A chance of showers in the
morning, then a slight chance of showers and thunderstorms in the
afternoon.
.FRIDAY NIGHT...Southeast winds 5 to 10 knots. A light chop on
the bay. A slight chance of showers in the evening, then a chance
of showers after midnight.

Winds and waves higher in and near thunderstorms.

$$

GMZ150-155-171930-
Gulf waters from Port Mansfield to the Rio Grande out 20 nm-
Gulf waters from Baffin Bay to Port Mansfield out 20 nm-
1224 AM CST Mon Nov 17 2025

.TODAY...Southeast winds 10 to 15 knots. Seas 2 to 4 feet. Wave
Detail: Southeast 3 feet at 5 seconds.
.TONIGHT...Southeast winds 10 to 15 knots. Seas 3 to 4 feet. Wave
Detail: Southeast 4 feet at 5 seconds.
.TUESDAY...Southeast winds 10 to 15 knots. Seas 3 to 4 feet. Wave
Detail: Southeast 3 feet at 5 seconds.
.TUESDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to
4 feet. Wave Detail: Southeast 4 feet at 6 seconds. A slight
chance of showers.
.WEDNESDAY...Southeast winds 10 to 15 knots. Seas 3 to 4 feet.
Wave Detail: Southeast 4 feet at 6 seconds. A slight chance of
showers in the morning.
.WEDNESDAY NIGHT...Southeast winds 15 to 20 knots. Seas 3 to
5 feet. Wave Detail: Southeast 5 feet at 6 seconds. A slight
chance of showers.
.THURSDAY...Southeast winds 15 to 20 knots. Seas 5 to 7 feet,
occasionally to 9 feet. A slight chance of showers.
.THURSDAY NIGHT...South winds 15 to 20 knots, diminishing to
10 to 15 knots after midnight. Seas 4 to 5 feet. A slight chance
of showers.
.FRIDAY...South winds 10 to 15 knots, becoming southeast in the
afternoon. Seas 3 to 4 feet. A chance of showers with a slight
chance of thunderstorms.
.FRIDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to 4 feet.
A slight chance of showers in the evening, then a chance of
showers with a slight chance of thunderstorms after midnight.

Winds and seas higher in and near thunderstorms.

$$

GMZ170-175-171930-
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-
1224 AM CST Mon Nov 17 2025

.TODAY...Southeast winds 10 to 15 knots. Seas 3 to 4 feet. Wave
Detail: South 3 feet at 5 seconds.
.TONIGHT...Southeast winds 15 to 20 knots. Seas 3 to 5 feet. Wave
Detail: Southeast 4 feet at 5 seconds.
.TUESDAY...Southeast winds 10 to 15 knots. Seas 3 to 4 feet. Wave
Detail: Southeast 4 feet at 5 seconds. A slight chance of showers
in the afternoon.
.TUESDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to
5 feet. Wave Detail: Southeast 4 feet at 5 seconds. A slight
chance of showers.
.WEDNESDAY...Southeast winds around 15 knots. Seas 4 to 5 feet.
Wave Detail: Southeast 4 feet at 6 seconds. A slight chance of
showers.
.WEDNESDAY NIGHT...Southeast winds 15 to 20 knots. Seas 4 to
5 feet. Wave Detail: Southeast 5 feet at 5 seconds. A slight
chance of showers.
.THURSDAY...Southeast winds 15 to 20 knots. Seas 5 to 7 feet,
occasionally to 9 feet. A slight chance of showers.
.THURSDAY NIGHT...South winds 15 to 20 knots. Seas 4 to 5 feet. A
slight chance of showers.
.FRIDAY...South winds 10 to 15 knots. Seas 4 to 5 feet. A chance
of showers with a slight chance of thunderstorms.
.FRIDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to 5 feet.
A chance of showers with a slight chance of thunderstorms.

Winds and seas higher in and near thunderstorms.

$$