843
FZUS54 KBRO 061847
CWFBRO

Coastal Waters Forecast for the Lower Texas Coast
National Weather Service Brownsville TX
1247 PM CST Sat Dec 6 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.

GMZ100-070715-
1247 PM CST Sat Dec 6 2025

.SYNOPSIS...Favorable conditions with moderate winds of varying
directions and slight seas continues through Sunday. A passing cold
front on Sunday will bring elevated winds and seas in its wake.
Sunday night, expect strong northerly winds and rough seas building.
Small Craft Advisory Conditions are possible Sunday night into
Monday. Favorable conditions return Tuesday and persist through the
workweek.

$$

GMZ130-132-135-070715-
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-
1247 PM CST Sat Dec 6 2025

.TONIGHT...East winds around 5 knots, becoming southwest early
this morning. Smooth on the bay.
.SUNDAY...West winds around 5 knots, becoming north late in the
afternoon. Smooth on the bay, increasing to light chop late in
the afternoon. Areas of fog early in the morning. Patchy fog late
in the morning.
.SUNDAY NIGHT...North winds 5 to 10 knots, increasing to 15 to
20 knots in the late evening and overnight. Light chop on the
bay, increasing to choppy in the late evening and overnight.
.MONDAY...North winds 15 to 20 knots, diminishing to 10 to
15 knots in the afternoon. Choppy on the bay, diminishing to a
moderate chop in the afternoon.
.MONDAY NIGHT...Northeast winds 5 to 10 knots. Light chop on the
bay.
.TUESDAY...East winds around 5 knots, becoming southeast in the
afternoon. Light chop on the bay.
.TUESDAY NIGHT...Southeast winds 5 to 10 knots, becoming south
after midnight. Light chop on the bay.
.WEDNESDAY...South winds 10 to 15 knots. A moderate chop on the
bay.
.WEDNESDAY NIGHT...South winds 10 to 15 knots. A moderate chop on
the bay.
.THURSDAY...South winds around 10 knots. Light chop on the bay.
.THURSDAY NIGHT...Southeast winds around 10 knots, becoming north
early in the morning. Light chop on the bay.

$$

GMZ150-155-070715-
Gulf waters from Port Mansfield to the Rio Grande out 20 nm-
Gulf waters from Baffin Bay to Port Mansfield out 20 nm-
1247 PM CST Sat Dec 6 2025

.TONIGHT...East winds around 5 knots, becoming southwest early
this morning. Seas 2 to 3 feet. Wave Detail: East 2 feet at
5 seconds.
.SUNDAY...West winds around 5 knots, becoming north late in the
afternoon. Seas 1 to 2 feet. Wave Detail: East 2 feet at
5 seconds and northwest 1 foot at 2 seconds.
.SUNDAY NIGHT...North winds 10 to 15 knots, increasing to 20 to
25 knots. Seas 3 to 5 feet, building to 6 to 8 feet, occasionally
to 10 feet after midnight. Wave Detail: North 4 feet at
5 seconds, becoming north 7 feet at 6 seconds.
.MONDAY...North winds 15 to 20 knots, becoming northeast 10 to
15 knots late in the afternoon. Seas 6 to 9 feet, occasionally to
11 feet, subsiding to 5 to 7 feet, occasionally to 9 feet in the
afternoon. Wave Detail: North 7 feet at 6 seconds, becoming north
6 feet at 6 seconds.
.MONDAY NIGHT...Northeast winds 10 to 15 knots, diminishing to
5 to 10 knots after midnight. Seas 3 to 5 feet, subsiding to 2 to
3 feet after midnight. Wave Detail: Northeast 4 feet at 7 seconds
and north 2 feet at 4 seconds, becoming northeast 3 feet at
7 seconds.
.TUESDAY...East winds 5 to 10 knots, becoming southeast in the
afternoon. Seas 2 to 3 feet. Wave Detail: Northeast 3 feet at
6 seconds.
.TUESDAY NIGHT...South winds 5 to 10 knots, increasing to 10 to
15 knots after midnight. Seas 2 to 3 feet.
.WEDNESDAY...South winds 10 to 15 knots. Seas 2 to 3 feet.
.WEDNESDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet.
.THURSDAY...South winds 10 to 15 knots. Seas 2 to 3 feet.
.THURSDAY NIGHT...South winds 10 to 15 knots, becoming northeast
early in the morning. Seas 2 to 4 feet.

$$

GMZ170-175-070715-
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-
1247 PM CST Sat Dec 6 2025

.TONIGHT...East winds 5 to 10 knots, becoming south early this
morning. Seas 2 to 3 feet. Wave Detail: East 2 feet at 5 seconds.
A slight chance of showers this evening. A slight chance of
showers early this morning.
.SUNDAY...Southwest winds 5 to 10 knots, becoming northwest late
in the afternoon. Seas 1 to 2 feet. Wave Detail: Northwest 2 feet
at 3 seconds and east 2 feet at 5 seconds. A slight chance of
showers until late afternoon.
.SUNDAY NIGHT...North winds 10 to 15 knots, increasing to 20 to
25 knots with gusts up to 30 knots. Seas 3 to 5 feet, building to
6 to 9 feet, occasionally to 11 feet after midnight. Wave Detail:
North 4 feet at 4 seconds, becoming north 9 feet at 6 seconds.
.MONDAY...North winds 20 to 25 knots, diminishing to 15 to
20 knots in the afternoon. Seas 6 to 9 feet, occasionally to
11 feet, subsiding to 5 to 7 feet, occasionally to 9 feet in the
afternoon. Wave Detail: North 9 feet at 7 seconds, becoming
northeast 6 feet at 7 seconds.
.MONDAY NIGHT...Northeast winds 10 to 15 knots. Seas 3 to 5 feet.
Wave Detail: Northeast 5 feet at 7 seconds.
.TUESDAY...East winds 5 to 10 knots, becoming around 5 knots in
the afternoon. Seas 2 to 3 feet. Wave Detail: Northeast 3 feet at
6 seconds.
.TUESDAY NIGHT...Southeast winds around 10 knots, becoming south
after midnight. Seas 2 to 3 feet.
.WEDNESDAY...South winds 10 to 15 knots. Seas 2 to 3 feet.
.WEDNESDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 4 feet.
.THURSDAY...South winds 10 to 15 knots. Seas 3 to 4 feet.
.THURSDAY NIGHT...South winds 10 to 15 knots, becoming southeast
early in the morning. Seas 3 to 4 feet.

$$