747
FZUS54 KBRO 130536
CWFBRO

Coastal Waters Forecast for the Lower Texas Coast
National Weather Service Brownsville TX
1236 AM CDT Mon Oct 13 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.

GMZ100-131815-
1236 AM CDT Mon Oct 13 2025

.SYNOPSIS...Generally favorable conditions are expected through
the period. Light to moderate onshore winds, moderate to slight
seas, and low rain chances should prevail through much of the
week. However, tropical moisture increasing over the region may
bring a low to medium chance of rain on Tuesday.

$$

GMZ130-132-135-131815-
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-
1236 AM CDT Mon Oct 13 2025

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

$$

GMZ150-155-131815-
Gulf waters from Port Mansfield to the Rio Grande out 20 nm-
Gulf waters from Baffin Bay to Port Mansfield out 20 nm-
1236 AM CDT Mon Oct 13 2025

.TODAY...Southeast winds 5 to 10 knots. Seas 2 to 4 feet. Wave
Detail: East 3 feet at 8 seconds.
.TONIGHT...East winds 10 to 15 knots. Seas 2 to 4 feet. Wave
Detail: East 3 feet at 7 seconds. A slight chance of showers.
.TUESDAY...East winds around 10 knots. Seas 3 to 4 feet. Wave
Detail: East 3 feet at 6 seconds. A slight chance of showers
until late afternoon.
.TUESDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 4 feet. Wave
Detail: East 3 feet at 6 seconds.
.WEDNESDAY...Northeast winds 5 to 10 knots. Seas 2 to 3 feet.
Wave Detail: East 2 feet at 5 seconds.
.WEDNESDAY NIGHT...East winds 5 to 10 knots, becoming southeast
after midnight. Seas 2 to 3 feet. Wave Detail: East 2 feet at
5 seconds.
.THURSDAY...Southeast winds 5 to 10 knots. Seas 2 to 3 feet.
.THURSDAY NIGHT...Southeast winds 5 to 10 knots. Seas 2 to
3 feet.
.FRIDAY...Southeast winds 5 to 10 knots. Seas 2 to 3 feet.
.FRIDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to 4 feet.

$$

GMZ170-175-131815-
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-
1236 AM CDT Mon Oct 13 2025

.TODAY...Southeast winds 5 to 10 knots. Seas 3 to 4 feet. Wave
Detail: East 3 feet at 8 seconds. A slight chance of showers late
this afternoon.
.TONIGHT...East winds 10 to 15 knots. Seas 3 to 4 feet. Wave
Detail: East 3 feet at 7 seconds. A slight chance of showers.
.TUESDAY...East winds 10 to 15 knots. Seas 3 to 4 feet. Wave
Detail: East 3 feet at 6 seconds. A slight chance of showers.
.TUESDAY NIGHT...East winds around 10 knots. Seas 2 to 4 feet.
Wave Detail: East 3 feet at 5 seconds.
.WEDNESDAY...Northeast winds 5 to 10 knots. Seas 2 to 3 feet.
Wave Detail: East 2 feet at 5 seconds.
.WEDNESDAY NIGHT...East winds 5 to 10 knots, becoming southeast
after midnight. Seas 2 to 3 feet. Wave Detail: East 2 feet at
5 seconds.
.THURSDAY...Southeast winds 5 to 10 knots. Seas 2 to 3 feet.
.THURSDAY NIGHT...Southeast winds 5 to 10 knots. Seas 2 to
3 feet.
.FRIDAY...Southeast winds 5 to 10 knots. Seas 2 to 3 feet.
.FRIDAY NIGHT...Southeast winds around 10 knots. Seas 2 to
4 feet.

$$