Coastal Waters Forecast
Issued by NWS Brownsville, TX

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542
FZUS54 KBRO 160850
CWFBRO

Coastal Waters Forecast for the Lower Texas Coast
National Weather Service Brownsville TX
350 AM CDT Sun Mar 16 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.

GMZ100-162115-
350 AM CDT Sun Mar 16 2025

.SYNOPSIS...Light to moderate winds and low to moderate seas are
expected to prevail through Monday. Adverse marine conditions will
develop Monday night into Tuesday as winds increase and seas
build ahead of another cold front that will arrive on Wednesday.
Small Craft Should Exercise Caution and Small Craft Advisories
will likely to be needed Monday night through late week.

$$

GMZ130-132-135-162115-
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-
350 AM CDT Sun Mar 16 2025

.TODAY...North winds 5 to 10 knots, becoming east late this
afternoon. Light chop on the bay.
.TONIGHT...Southeast winds around 10 knots, becoming south after
midnight. Light chop on the bay.
.MONDAY...South winds 5 to 10 knots, becoming southeast 15 to
20 knots. Light chop on the bay, increasing to choppy.
.MONDAY NIGHT...Southeast winds 15 to 20 knots. Choppy on the
bay.
.TUESDAY...South winds 15 to 20 knots, becoming southeast 20 to
25 knots with gusts up to 30 knots in the afternoon. Rough on the
bay.
.TUESDAY NIGHT...South winds 15 to 20 knots. Gusts to 30 knots
early in the evening. Choppy on the bay.
.WEDNESDAY...Southwest winds 10 to 15 knots, becoming north in
the afternoon. A moderate chop on the bay.
.WEDNESDAY NIGHT...Northeast winds 10 to 15 knots, increasing to
15 to 20 knots after midnight. Choppy on the bay.
.THURSDAY...Northeast winds 15 to 20 knots, diminishing to 10 to
15 knots late in the afternoon. Choppy on the bay, diminishing to
a moderate chop late in the afternoon.
.THURSDAY NIGHT...East winds 10 to 15 knots, becoming southeast
after midnight. Light chop on the bay.

$$

GMZ150-155-162115-
Gulf waters from Port Mansfield to the Rio Grande out 20 nm-
Gulf waters from Baffin Bay to Port Mansfield out 20 nm-
350 AM CDT Sun Mar 16 2025

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

$$

GMZ170-175-162115-
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-
350 AM CDT Sun Mar 16 2025

.TODAY...North winds 10 to 15 knots, becoming northeast 5 to
10 knots late this afternoon. Seas 4 to 5 feet. Wave Detail:
Southeast 4 feet at 8 seconds and north 3 feet at 4 seconds.
.TONIGHT...East winds around 10 knots, becoming southeast after
midnight. Seas 3 to 4 feet. Wave Detail: Southeast 3 feet at
8 seconds and north 2 feet at 4 seconds.
.MONDAY...Southeast winds 10 to 15 knots. Seas 3 to 4 feet. Wave
Detail: Southeast 3 feet at 4 seconds and southeast 2 feet at
8 seconds.
.MONDAY NIGHT...Southeast winds 15 to 20 knots. Seas 3 to 5 feet.
Wave Detail: Southeast 5 feet at 5 seconds and east 1 foot at
8 seconds.
.TUESDAY...South winds 20 to 25 knots. Seas 5 to 7 feet,
occasionally to 9 feet. Wave Detail: Southeast 7 feet at
7 seconds.
.TUESDAY NIGHT...South winds 20 to 25 knots. Seas 6 to 8 feet,
occasionally to 10 feet. Wave Detail: Southeast 7 feet at
7 seconds.
.WEDNESDAY...South winds 15 to 20 knots, becoming west 10 to
15 knots late in the morning, then becoming northwest early in
the afternoon, becoming north late in the afternoon. Seas 4 to
6 feet, occasionally to 8 feet.
.WEDNESDAY NIGHT...North winds around 10 knots, increasing to
20 to 25 knots with gusts up to 30 knots. Seas 4 to 5 feet,
building to 5 to 7 feet, occasionally to 9 feet after midnight.
.THURSDAY...Northeast winds 20 to 25 knots with gusts up to
30 knots, diminishing to 10 to 15 knots. Seas 6 to 9 feet,
occasionally to 11 feet.
.THURSDAY NIGHT...East winds 10 to 15 knots, becoming southeast
after midnight. Seas 5 to 7 feet, occasionally to 9 feet.

$$