Coastal Waters Forecast
Issued by NWS Brownsville, TX

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584
FZUS54 KBRO 070650 AAA
CWFBRO

Coastal Waters Forecast for the Lower Texas Coast...UPDATED
National Weather Service Brownsville TX
150 AM CDT Wed May 7 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.

GMZ100-071915-
150 AM CDT Wed May 7 2025

.SYNOPSIS...Moderate to fresh southeast winds will weaken through
Wednesday before shifting to north and northeast behind a potential
cold front. On and off isolated to scattered convection will be
possible through the end of the workweek.

$$

GMZ135-071915-
Laguna Madre from 5 nm north of Port Mansfield to Baffin Bay TX-
150 AM CDT Wed May 7 2025

...SEVERE THUNDERSTORM WATCH 237 IN EFFECT UNTIL 8 AM CDT THIS
MORNING...

.REST OF TONIGHT...Southeast winds 5 to 10 knots. Light chop on
the bay. A slight chance of showers and thunderstorms, then a
chance of showers and thunderstorms early this morning.
.WEDNESDAY...East winds 5 to 10 knots, becoming around 10 knots
late in the afternoon. Light chop on the bay. A chance of showers
with a slight chance of thunderstorms early in the morning, then
a slight chance of showers and thunderstorms in the afternoon.
.WEDNESDAY NIGHT...Northeast winds 5 to 10 knots. Light chop on
the bay. Patchy fog after midnight.
.THURSDAY...Northeast winds 5 to 10 knots. Light chop on the bay.
Showers likely. A slight chance of thunderstorms early in the
morning, then a chance of thunderstorms in the afternoon.
.THURSDAY NIGHT...Northeast winds around 10 knots. Light chop on
the bay. A chance of thunderstorms. Showers likely until early
morning, then a chance of showers early in the morning.
.FRIDAY...North winds 10 to 15 knots. A moderate chop on the bay.
A chance of thunderstorms in the morning. A chance of showers. A
slight chance of thunderstorms in the afternoon.
.FRIDAY NIGHT...Northeast winds 5 to 10 knots, becoming north
after midnight. Light chop on the bay, diminishing to smooth late
in the evening, then increasing to light chop after midnight. A
slight chance of showers early in the evening.
.SATURDAY...North winds 10 to 15 knots. A moderate chop on the
bay.
.SATURDAY NIGHT...North winds 5 to 10 knots. Light chop on the
bay.
.SUNDAY...North winds 5 to 10 knots, becoming northeast late in
the afternoon. Light chop on the bay.
.SUNDAY NIGHT...East winds 5 to 10 knots, becoming south early in
the morning. Light chop on the bay, diminishing to smooth after
midnight.

Winds and waves higher in and near thunderstorms.

$$

GMZ130-132-071915-
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-
150 AM CDT Wed May 7 2025

.REST OF TONIGHT...Southeast winds around 10 knots. Light chop on
the bay. A slight chance of showers and thunderstorms, then a
chance of showers and thunderstorms early this morning.
.WEDNESDAY...East winds 5 to 10 knots, becoming around 10 knots
late in the afternoon. Light chop on the bay. A slight chance of
showers and thunderstorms early in the morning.
.WEDNESDAY NIGHT...East winds 5 to 10 knots. Light chop on the
bay.
.THURSDAY...Northeast winds 5 to 10 knots. Light chop on the bay.
A chance of thunderstorms. Showers likely. Patchy fog in the
afternoon.
.THURSDAY NIGHT...Northeast winds 10 to 15 knots, becoming north
early in the morning. A moderate chop on the bay, diminishing to
light chop early in the morning. A chance of thunderstorms.
Showers likely.
.FRIDAY...North winds 10 to 15 knots. A moderate chop on the bay.
Showers likely with a chance of thunderstorms in the morning,
then a chance of showers with a slight chance of thunderstorms in
the afternoon.
.FRIDAY NIGHT...Northeast winds 5 to 10 knots, becoming north
early in the morning. Light chop on the bay. A slight chance of
showers early in the evening.
.SATURDAY...North winds 10 to 15 knots. A moderate chop on the
bay.
.SATURDAY NIGHT...North winds 5 to 10 knots, becoming northwest
early in the morning. Light chop on the bay.
.SUNDAY...North winds 5 to 10 knots, becoming around 10 knots in
the afternoon. Light chop on the bay.
.SUNDAY NIGHT...East winds 5 to 10 knots, becoming south early in
the morning. Light chop on the bay, diminishing to smooth after
midnight.

Winds and waves higher in and near thunderstorms.

$$

GMZ150-155-071915-
Gulf waters from Port Mansfield to the Rio Grande out 20 nm-
Gulf waters from Baffin Bay to Port Mansfield out 20 nm-
150 AM CDT Wed May 7 2025

.REST OF TONIGHT...Southeast winds around 10 knots. Seas 4 to
5 feet. Wave Detail: Southeast 5 feet at 7 seconds. A slight
chance of showers and thunderstorms, then a chance of showers and
thunderstorms early this morning.
.WEDNESDAY...East winds 5 to 10 knots. Seas 4 to 5 feet. Wave
Detail: Southeast 5 feet at 8 seconds. A chance of showers and
thunderstorms early in the morning.
.WEDNESDAY NIGHT...East winds 5 to 10 knots. Seas 4 to 5 feet.
Wave Detail: Southeast 4 feet at 7 seconds.
.THURSDAY...Northeast winds 5 to 10 knots. Seas 3 to 5 feet. Wave
Detail: Southeast 4 feet at 8 seconds. A chance of thunderstorms.
Showers likely.
.THURSDAY NIGHT...Northeast winds 10 to 15 knots. Seas 3 to
4 feet. Wave Detail: East 4 feet at 7 seconds. A chance of
thunderstorms. Showers likely.
.FRIDAY...North winds 10 to 15 knots. Seas 4 to 6 feet,
occasionally to 8 feet. Wave Detail: North 5 feet at 6 seconds.
Showers likely with a chance of thunderstorms in the morning,
then a chance of showers with a slight chance of thunderstorms in
the afternoon.
.FRIDAY NIGHT...Northeast winds 5 to 10 knots, becoming north
early in the morning. Seas 3 to 5 feet. A slight chance of
showers early in the evening.
.SATURDAY...North winds 10 to 15 knots. Seas 3 to 5 feet.
.SATURDAY NIGHT...North winds 5 to 10 knots. Seas 3 to 5 feet.
.SUNDAY...North winds around 10 knots, becoming northeast late in
the afternoon. Seas 2 to 3 feet.
.SUNDAY NIGHT...East winds 5 to 10 knots, becoming south early in
the morning. Seas 2 to 3 feet.

Winds and seas higher in and near thunderstorms.

$$

GMZ170-175-071915-
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-
150 AM CDT Wed May 7 2025

.REST OF TONIGHT...Southeast winds around 10 knots. Seas 5 to
7 feet, occasionally to 9 feet. Wave Detail: Southeast 5 feet at
7 seconds. A slight chance of showers and thunderstorms.
.WEDNESDAY...East winds 5 to 10 knots. Seas 5 to 7 feet,
occasionally to 9 feet. Wave Detail: Southeast 5 feet at
8 seconds. A chance of showers and thunderstorms early in the
morning, then a slight chance of showers and thunderstorms late
in the morning.
.WEDNESDAY NIGHT...East winds 5 to 10 knots, becoming southeast
early in the morning. Seas 4 to 5 feet. Wave Detail: Southeast
5 feet at 7 seconds.
.THURSDAY...Southeast winds 5 to 10 knots, becoming east in the
afternoon. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail:
Southeast 5 feet at 8 seconds. Showers likely. A slight chance of
thunderstorms early in the morning, then a chance of
thunderstorms in the afternoon.
.THURSDAY NIGHT...Northeast winds 10 to 15 knots. Seas 4 to
5 feet. Wave Detail: East 4 feet at 7 seconds. A chance of
thunderstorms. Showers.
.FRIDAY...North winds 10 to 15 knots. Seas 4 to 6 feet,
occasionally to 8 feet. Wave Detail: North 5 feet at 6 seconds. A
chance of thunderstorms in the morning. A chance of showers. A
slight chance of thunderstorms in the afternoon.
.FRIDAY NIGHT...North winds around 10 knots. Seas 3 to 5 feet. A
slight chance of showers early in the evening.
.SATURDAY...North winds 10 to 15 knots. Seas 3 to 5 feet. A
slight chance of showers in the morning.
.SATURDAY NIGHT...North winds around 10 knots. Seas 3 to 5 feet.
A slight chance of showers after midnight.
.SUNDAY...North winds 10 to 15 knots. Seas 3 to 4 feet. A slight
chance of showers until late afternoon.
.SUNDAY NIGHT...Northeast winds 5 to 10 knots, becoming south
early in the morning. Seas 2 to 3 feet.

Winds and seas higher in and near thunderstorms.

$$