574
FZUS54 KBRO 200830
CWFBRO

Coastal Waters Forecast for the Lower Texas Coast
National Weather Service Brownsville TX
330 AM CDT Sun Apr 20 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.

GMZ100-201530-
330 AM CDT Sun Apr 20 2025

.SYNOPSIS...A recent enhanced pressure gradient will produce
adverse marine conditions on the Gulf of America waters through
early in the new work week. Afterwards, more moderate winds and
seas are forecast along the Lower Texas Coast as high pressure
becomes more dominant. However, the resumption of an enhanced
pressure gradient may produce adverse marine conditions again
later in the week.

$$

GMZ130-132-135-201530-
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-
330 AM CDT Sun Apr 20 2025

.TODAY...Southeast winds 10 to 15 knots. A moderate chop on the
bay. A chance of showers with a slight chance of thunderstorms
this afternoon.
.TONIGHT...Southeast winds 5 to 10 knots. A light chop on the
bay. A slight chance of showers and thunderstorms early in the
evening. A slight chance of showers and thunderstorms early in the
morning. Patchy fog early in the morning.
.MONDAY...Southeast winds 5 to 10 knots. A light chop on the bay.
A chance of thunderstorms. A chance of showers.
.MONDAY NIGHT...Southeast winds 5 to 10 knots. A light chop on
the bay. A chance of showers with a slight chance of thunderstorms
early in the evening.
.TUESDAY...Southeast winds 5 to 10 knots, increasing to 10 to 15
knots in the afternoon. A light chop on the bay, increasing to a
moderate chop on the bay in the afternoon. A chance of showers
with a slight chance of thunderstorms.
.TUESDAY NIGHT...Southeast winds 10 to 15 knots. A moderate chop
on the bay. A slight chance of showers and thunderstorms.
.WEDNESDAY...Southeast winds 10 to 15 knots, increasing to 15 to
20 knots in the afternoon. Choppy bay waters. A slight chance of
showers and thunderstorms until late afternoon.
.WEDNESDAY NIGHT...Southeast winds 10 to 15 knots. A moderate
chop on the bay.
.THURSDAY...Southeast winds 10 to 15 knots, increasing to 15 to
20 knots in the afternoon. Choppy bay waters.
.THURSDAY NIGHT...Southeast winds 10 to 15 knots. A moderate chop
on the bay.

Winds and waves higher in and near thunderstorms.

$$

GMZ150-155-201530-
Gulf waters from Port Mansfield to the Rio Grande out 20 nm-
Gulf waters from Baffin Bay to Port Mansfield out 20 nm-
330 AM CDT Sun Apr 20 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING...

.TODAY...Southeast winds 15 to 20 knots, diminishing to 10 to
15 knots this afternoon. Seas 5 to 7 feet, occasionally to
9 feet. Wave Detail: Southeast 6 feet at 8 seconds. A slight
chance of thunderstorms late this morning. A slight chance of
showers this afternoon. A slight chance of thunderstorms late
this afternoon.
.TONIGHT...Southeast winds 5 to 10 knots. Seas 4 to 6 feet,
occasionally to 8 feet. Wave Detail: East 5 feet at 8 seconds. A
chance of showers with a slight chance of thunderstorms early in
the evening. A slight chance of showers and thunderstorms early
in the morning.
.MONDAY...Southeast winds 5 to 10 knots. Seas 4 to 5 feet. Wave
Detail: East 5 feet at 8 seconds. A chance of showers and
thunderstorms until late afternoon, then a slight chance of
showers and thunderstorms late in the afternoon.
.MONDAY NIGHT...Southeast winds around 10 knots. Seas 4 to
5 feet. Wave Detail: East 4 feet at 8 seconds. A slight chance of
showers early in the evening.
.TUESDAY...Southeast winds 10 to 15 knots. Seas 4 to 5 feet. Wave
Detail: East 4 feet at 8 seconds. A chance of showers with a
slight chance of thunderstorms.
.TUESDAY NIGHT...Southeast winds 10 to 15 knots. Seas 4 to
5 feet. Wave Detail: East 4 feet at 8 seconds. A slight chance of
showers until early morning. A slight chance of thunderstorms in
the late evening and overnight. A chance of showers early in the
morning.
.WEDNESDAY...Southeast winds 10 to 15 knots. Seas 4 to 5 feet. A
slight chance of showers and thunderstorms.
.WEDNESDAY NIGHT...Southeast winds 10 to 15 knots. Seas 4 to
5 feet.
.THURSDAY...Southeast winds 10 to 15 knots. Seas 4 to 5 feet.
.THURSDAY NIGHT...Southeast winds around 15 knots. Seas 4 to
5 feet.

Winds and seas higher in and near thunderstorms.

$$

GMZ170-175-201530-
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-
330 AM CDT Sun Apr 20 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING...

.TODAY...Southeast winds 15 to 20 knots, diminishing to 10 to
15 knots this afternoon. Seas 6 to 8 feet, occasionally to
10 feet. Wave Detail: Southeast 7 feet at 8 seconds. A slight
chance of showers this afternoon.
.TONIGHT...Southeast winds 5 to 10 knots. Seas 6 to 8 feet,
occasionally to 10 feet. Wave Detail: Southeast 6 feet at
9 seconds. A slight chance of showers after midnight. A slight
chance of showers and thunderstorms early in the morning.
.MONDAY...Southeast winds 5 to 10 knots. Seas 5 to 7 feet,
occasionally to 9 feet, subsiding to 4 to 5 feet in the
afternoon. Wave Detail: East 5 feet at 8 seconds. A chance of
showers and thunderstorms in the morning, then a chance of
showers with a slight chance of thunderstorms early in the
afternoon.
.MONDAY NIGHT...East winds around 10 knots, becoming southeast
after midnight. Seas 4 to 5 feet. Wave Detail: East 4 feet at
8 seconds.
.TUESDAY...Southeast winds 10 to 15 knots. Seas 4 to 5 feet. Wave
Detail: East 4 feet at 8 seconds. A slight chance of showers and
thunderstorms in the morning, then a slight chance of showers
early in the afternoon.
.TUESDAY NIGHT...Southeast winds 10 to 15 knots. Seas 4 to
5 feet. Wave Detail: East 5 feet at 8 seconds. A slight chance of
showers and thunderstorms after midnight.
.WEDNESDAY...Southeast winds 10 to 15 knots. Seas 4 to 6 feet,
occasionally to 8 feet. A slight chance of showers and
thunderstorms in the morning.
.WEDNESDAY NIGHT...Southeast winds 10 to 15 knots. Seas 4 to
6 feet, occasionally to 8 feet.
.THURSDAY...Southeast winds around 15 knots. Seas 5 to 7 feet,
occasionally to 9 feet.
.THURSDAY NIGHT...Southeast winds around 15 knots. Seas 5 to
7 feet, occasionally to 9 feet.

Winds and seas higher in and near thunderstorms.

$$