Coastal Waters Forecast
Issued by NWS Brownsville, TX

Home |  Current Version |  Previous Version |  Text Only |  Print | Product List |  Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
798
FZUS54 KBRO 150626
CWFBRO

Coastal Waters Forecast for the Lower Texas Coast
National Weather Service Brownsville TX
1226 AM CST Sat Nov 15 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.

GMZ100-151930-
1226 AM CST Sat Nov 15 2025

.SYNOPSIS...Generally favorable conditions are expected across the
Gulf waters and the Laguna Madre this weekend. Wind speeds will
likely increase early next week and Small Craft Should Exercise
Caution headlines may be needed at times.

$$

GMZ130-132-135-151930-
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-
1226 AM CST Sat Nov 15 2025

.TODAY...Southeast winds 5 to 10 knots, increasing to 10 to
15 knots this afternoon. Light chop on the bay, increasing to a
moderate chop this afternoon.
.TONIGHT...Southeast winds 10 to 15 knots, becoming south 5 to
10 knots after midnight. A moderate chop on the bay, diminishing
to light chop after midnight.
.SUNDAY...South winds 5 to 10 knots, becoming southeast 10 to
15 knots in the afternoon. Light chop on the bay, increasing to a
moderate chop in the afternoon.
.SUNDAY NIGHT...South winds 10 to 15 knots. A moderate chop on
the bay.
.MONDAY...Southeast winds 10 to 15 knots. A moderate chop on the
bay.
.MONDAY NIGHT...Southeast winds 10 to 15 knots. A moderate chop
on the bay.
.TUESDAY...Southeast 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.
.TUESDAY NIGHT...Southeast winds 10 to 15 knots. A moderate chop
on the bay.
.WEDNESDAY...Southeast winds 15 to 20 knots. Choppy on the bay.
.WEDNESDAY NIGHT...Southeast winds 15 to 20 knots, increasing to
20 to 25 knots after midnight. Choppy on the bay, increasing to
rough after midnight. A slight chance of showers after midnight.

$$

GMZ150-155-151930-
Gulf waters from Port Mansfield to the Rio Grande out 20 nm-
Gulf waters from Baffin Bay to Port Mansfield out 20 nm-
1226 AM CST Sat Nov 15 2025

.TODAY...Southeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 3 feet at 5 seconds.
.TONIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 3 feet at 5 seconds.
.SUNDAY...South winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 2 feet at 5 seconds.
.SUNDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 4 feet.
Wave Detail: Southeast 3 feet at 6 seconds.
.MONDAY...Southeast winds 10 to 15 knots. Seas 3 to 4 feet. Wave
Detail: Southeast 3 feet at 5 seconds.
.MONDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to 4 feet.
Wave Detail: Southeast 4 feet at 6 seconds.
.TUESDAY...Southeast winds 10 to 15 knots. Seas 3 to 4 feet.
.TUESDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to
4 feet. A slight chance of showers after midnight.
.WEDNESDAY...Southeast winds 15 to 20 knots. Seas 4 to 5 feet.
.WEDNESDAY NIGHT...Southeast winds 15 to 20 knots. Seas 4 to
5 feet, building to 5 to 7 feet, occasionally to 9 feet after
midnight. A slight chance of showers in the evening, then a
chance of showers after midnight.

$$

GMZ170-175-151930-
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-
1226 AM CST Sat Nov 15 2025

.TODAY...Southeast winds around 10 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 3 feet at 5 seconds and southeast 1 foot at
8 seconds.
.TONIGHT...South winds 10 to 15 knots. Seas 2 to 4 feet. Wave
Detail: Southeast 3 feet at 6 seconds.
.SUNDAY...South winds around 10 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 3 feet at 5 seconds.
.SUNDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 4 feet.
Wave Detail: Southeast 3 feet at 6 seconds.
.MONDAY...Southeast winds 10 to 15 knots. Seas 3 to 4 feet. Wave
Detail: Southeast 3 feet at 5 seconds.
.MONDAY NIGHT...Southeast winds around 15 knots. Seas 3 to
5 feet. Wave Detail: South 4 feet at 5 seconds.
.TUESDAY...Southeast winds around 15 knots. Seas 3 to 4 feet.
.TUESDAY NIGHT...Southeast winds 15 to 20 knots. Seas 3 to
5 feet. A slight chance of showers after midnight.
.WEDNESDAY...Southeast winds 15 to 20 knots. Seas 4 to 5 feet. A
slight chance of showers.
.WEDNESDAY NIGHT...Southeast winds 15 to 20 knots, increasing to
20 to 25 knots after midnight. Seas 4 to 5 feet, building to 5 to
7 feet, occasionally to 9 feet after midnight. A slight chance of
showers in the evening, then a chance of showers after midnight.

$$