Coastal Waters Forecast
Issued by NWS Brownsville, TX

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767
FZUS54 KBRO 021826
CWFBRO

Coastal Waters Forecast for the Lower Texas Coast
National Weather Service Brownsville TX
1226 PM CST Tue Dec 2 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.

GMZ100-030715-
1226 PM CST Tue Dec 2 2025

.SYNOPSIS...Moderate to gentle northerly winds are expected to
continue Small Craft Exercise Caution headlines through this
afternoon. Gentle to moderate southeasterly winds and slight to
moderate seas return tonight through tomorrow night. Adverse
marine conditions arrive in the wake of a cold front moving
through Thursday morning along with increased rain chances.
Conditions improve Friday into this weekend.

$$

GMZ130-132-135-030715-
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-
1226 PM CST Tue Dec 2 2025

...SMALL CRAFT SHOULD EXERCISE CAUTION...

.REST OF TODAY...North winds 15 to 20 knots, becoming 10 to 15
knots later this afternoon. A moderate chop on the bay.
.TONIGHT...Northeast winds 5 to 10 knots, becoming east late in
the evening, then becoming south after midnight, becoming east
around 5 knots early in the morning. Light chop on the bay,
diminishing to smooth in the late evening and overnight.
.WEDNESDAY...East winds 5 to 10 knots, becoming south late in the
morning, then becoming southeast in the afternoon. Light chop on
the bay. A slight chance of showers early in the afternoon. A
chance of showers with a slight chance of thunderstorms late in
the afternoon.
.WEDNESDAY NIGHT...Southeast winds 5 to 10 knots, becoming
southwest after midnight. Light chop on the bay. A slight chance
of thunderstorms until early morning. A chance of showers.
.THURSDAY...Southwest winds 5 to 10 knots, becoming west late in
the morning, then becoming north in the afternoon. Light chop on
the bay, increasing to a moderate chop in the afternoon. A chance
of showers in the morning. A slight chance of thunderstorms in
the afternoon. Showers likely in the afternoon.
.THURSDAY NIGHT...North winds 15 to 20 knots, diminishing to
10 to 15 knots early in the morning. Choppy on the bay,
diminishing to a moderate chop early in the morning. Showers
likely. A slight chance of thunderstorms after midnight.
.FRIDAY...North winds 10 to 15 knots. A moderate chop on the bay.
A chance of showers in the morning.
.FRIDAY NIGHT...North winds 5 to 10 knots. Light chop on the bay.
A chance of showers.
.SATURDAY...North winds 5 to 10 knots. Light chop on the bay. A
slight chance of showers in the morning.
.SATURDAY NIGHT...Northeast winds 5 to 10 knots, becoming east
late in the evening, then becoming west after midnight. Light
chop on the bay, diminishing to smooth in the late evening and
overnight.

Winds and waves higher in and near thunderstorms.

$$

GMZ150-155-030715-
Gulf waters from Port Mansfield to the Rio Grande out 20 nm-
Gulf waters from Baffin Bay to Port Mansfield out 20 nm-
1226 PM CST Tue Dec 2 2025

...SMALL CRAFT SHOULD EXERCISE CAUTION...

.REST OF TODAY...North winds 15 to 20 knots becoming 10 to 15
knots later this afternoon. Seas 5 to 7 feet, occasionally to 9
feet. Wave Detail: Northeast 6 feet at 7 seconds.
.TONIGHT...Northeast winds 5 to 10 knots, becoming southeast
after midnight. Seas 2 to 4 feet. Wave Detail: Northeast 4 feet
at 7 seconds.
.WEDNESDAY...Southeast winds 10 to 15 knots. Seas 2 to 3 feet.
Wave Detail: East 3 feet at 6 seconds. A chance of showers with a
slight chance of thunderstorms in the afternoon.
.WEDNESDAY NIGHT...South winds 10 to 15 knots, becoming around
10 knots after midnight. Seas 2 to 3 feet. Wave Detail: Southeast
3 feet at 5 seconds. A chance of showers with a slight chance of
thunderstorms.
.THURSDAY...Southwest winds 10 to 15 knots, becoming northwest
early in the afternoon, then becoming north 15 to 20 knots late
in the afternoon. Seas 3 to 4 feet, building to 4 to 6 feet,
occasionally to 8 feet in the afternoon. Wave Detail: Southeast
3 feet at 6 seconds, becoming east 6 feet at 6 seconds. A chance
of showers in the morning. A slight chance of thunderstorms in
the afternoon. Showers in the afternoon.
.THURSDAY NIGHT...North winds 15 to 20 knots. Seas 5 to 7 feet,
occasionally to 9 feet. Wave Detail: Northeast 6 feet at
7 seconds. Showers. A slight chance of thunderstorms after
midnight.
.FRIDAY...North winds 10 to 15 knots. Seas 5 to 7 feet,
occasionally to 9 feet, subsiding to 3 to 4 feet in the
afternoon. A slight chance of thunderstorms early in the morning.
A chance of showers in the morning, then a slight chance of
showers in the afternoon.
.FRIDAY NIGHT...North winds around 10 knots. Seas 2 to 3 feet. A
chance of showers.
.SATURDAY...North winds 5 to 10 knots. Seas 2 to 3 feet. A slight
chance of showers in the morning.
.SATURDAY NIGHT...Northeast winds 5 to 10 knots, becoming east
late in the evening, then becoming northwest after midnight. Seas
2 to 3 feet.

Winds and seas higher in and near thunderstorms.

$$

GMZ170-175-030715-
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-
1226 PM CST Tue Dec 2 2025

...SMALL CRAFT SHOULD EXERCISE CAUTION...

.REST OF TODAY...North winds 15 to 20 knots, becoming 10 to 15
this evening. Seas 5 to 7 feet, occasionally to 9 feet. Wave
Detail: North 6 feet at 7 seconds.
.TONIGHT...Northeast winds around 10 knots, becoming southeast
early in the morning. Seas 3 to 5 feet. Wave Detail: North 4 feet
at 7 seconds.
.WEDNESDAY...Southeast winds 10 to 15 knots. Seas 3 to 4 feet.
Wave Detail: East 3 feet at 5 seconds. A chance of showers with a
slight chance of thunderstorms in the afternoon.
.WEDNESDAY NIGHT...South winds 10 to 15 knots. Seas 3 to 4 feet.
Wave Detail: Southeast 4 feet at 5 seconds. Showers likely with a
chance of thunderstorms in the evening, then a chance of showers
with a slight chance of thunderstorms after midnight.
.THURSDAY...South winds around 15 knots, becoming northwest late
in the afternoon. Seas 3 to 4 feet, building to 4 to 6 feet,
occasionally to 8 feet in the afternoon. Wave Detail: South
4 feet at 6 seconds, becoming north 4 feet at 6 seconds and south
3 feet at 6 seconds. Showers likely with a slight chance of
thunderstorms in the morning, then showers with a chance of
thunderstorms in the afternoon.
.THURSDAY NIGHT...North winds 15 to 20 knots. Seas 5 to 7 feet,
occasionally to 9 feet. Wave Detail: Southeast 6 feet at
6 seconds and north 5 feet at 7 seconds. Showers. A chance of
thunderstorms after midnight.
.FRIDAY...North winds 10 to 15 knots. Seas 5 to 7 feet,
occasionally to 9 feet, subsiding to 3 to 4 feet in the
afternoon. Showers likely with a slight chance of thunderstorms
in the morning, then a chance of showers in the afternoon.
.FRIDAY NIGHT...Northeast winds around 10 knots. Seas 3 to
4 feet. A chance of showers in the evening, then showers likely
after midnight.
.SATURDAY...North winds around 10 knots. Seas 2 to 4 feet. A
chance of showers in the morning, then a slight chance of showers
and thunderstorms in the afternoon.
.SATURDAY NIGHT...Northeast winds 5 to 10 knots, becoming
northwest early in the morning. Seas 2 to 3 feet.

Winds and seas higher in and near thunderstorms.

$$