Coastal Waters Forecast
Issued by NWS Brownsville, TX

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889
FZUS54 KBRO 281758
CWFBRO

Coastal Waters Forecast for the Lower Texas Coast
National Weather Service Brownsville TX
1158 AM CST Fri Nov 28 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.

GMZ100-290615-
1158 AM CST Fri Nov 28 2025

.SYNOPSIS...A Small Craft Advisory is in effect through 6 PM
Saturday evening, and may need to be extended depending on the
strength of the pressure gradient/cold front. SCEC conditions are
still expected through Saturday night and possibly into Sunday.

$$

GMZ130-132-135-290615-
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-
1158 AM CST Fri Nov 28 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY AFTERNOON...

.REST OF TODAY...Southeast winds 15 to 20 knots. Choppy on the
bay. A slight chance of showers this afternoon.
.TONIGHT...Southeast winds 15 to 20 knots, increasing to 20 to
25 knots in the late evening and overnight. Choppy on the bay,
increasing to rough in the late evening and overnight.
.SATURDAY...South winds 20 to 25 knots. Rough on the bay. A
slight chance of showers in the afternoon.
.SATURDAY NIGHT...South winds 15 to 20 knots, diminishing to
10 to 15 knots in the late evening and early morning, then
diminishing to 5 to 10 knots early in the morning. Choppy on the
bay, diminishing to a moderate chop in the late evening and early
morning, then diminishing to light chop early in the morning. A
slight chance of showers and thunderstorms in the evening, then a
chance of showers and thunderstorms after midnight.
.SUNDAY...Northwest winds 10 to 15 knots, becoming north 15 to
20 knots in the afternoon. A moderate chop on the bay, increasing
to choppy in the afternoon. A chance of thunderstorms early in
the morning. Showers likely. A slight chance of thunderstorms in
the afternoon.
.SUNDAY NIGHT...North winds 15 to 20 knots. Choppy on the bay.
Showers likely.
.MONDAY...Northwest winds 10 to 15 knots. A moderate chop on the
bay. A chance of showers, mainly in the morning.
.MONDAY NIGHT...North winds 10 to 15 knots. A moderate chop on
the bay. A slight chance of showers.
.TUESDAY...North winds 10 to 15 knots. A moderate chop on the
bay.
.TUESDAY NIGHT...Northeast winds 5 to 10 knots, becoming east
after midnight. Light chop on the bay.

Winds and waves higher in and near thunderstorms.

$$

GMZ150-155-290615-
Gulf waters from Port Mansfield to the Rio Grande out 20 nm-
Gulf waters from Baffin Bay to Port Mansfield out 20 nm-
1158 AM CST Fri Nov 28 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY AFTERNOON...

.REST OF TODAY...Southeast winds 15 to 20 knots. Seas 5 to
7 feet, occasionally to 9 feet. Wave Detail: East 6 feet at
7 seconds. A slight chance of showers late this afternoon.
.TONIGHT...Southeast winds 20 to 25 knots. Seas 6 to 9 feet,
occasionally to 11 feet. Wave Detail: Southeast 8 feet at
7 seconds. A slight chance of showers in the evening. A slight
chance of showers early in the morning.
.SATURDAY...South winds 20 to 25 knots. Seas 6 to 8 feet,
occasionally to 10 feet. Wave Detail: Southeast 8 feet at
7 seconds. A slight chance of showers early in the morning. A
slight chance of showers in the afternoon.
.SATURDAY NIGHT...South winds 15 to 20 knots, diminishing to
10 to 15 knots early in the morning. Seas 4 to 6 feet,
occasionally to 8 feet. Wave Detail: Southeast 6 feet at
7 seconds. A chance of showers with a slight chance of
thunderstorms in the evening, then showers likely with a chance
of thunderstorms after midnight.
.SUNDAY...West winds 10 to 15 knots, becoming north 15 to
20 knots in the afternoon. Seas 3 to 5 feet, building to 5 to
7 feet, occasionally to 9 feet in the afternoon. Wave Detail:
East 5 feet at 7 seconds, becoming northeast 6 feet at 6 seconds.
Showers with a chance of thunderstorms early in the morning, then
showers with a slight chance of thunderstorms in the afternoon.
.SUNDAY 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 late in the
evening.
.MONDAY...North winds 10 to 15 knots. Seas 4 to 6 feet,
occasionally to 8 feet. Showers likely, mainly in the morning.
.MONDAY NIGHT...North winds 10 to 15 knots, increasing to 15 to
20 knots early in the morning. Seas 4 to 6 feet, occasionally to
8 feet. A chance of showers.
.TUESDAY...North winds 15 to 20 knots, becoming northeast 10 to
15 knots late in the afternoon. Seas 5 to 7 feet, occasionally to
9 feet. A slight chance of showers.
.TUESDAY NIGHT...Northeast winds 5 to 10 knots, becoming east
after midnight. Seas 3 to 4 feet.

Winds and seas higher in and near thunderstorms.

$$

GMZ170-175-290615-
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-
1158 AM CST Fri Nov 28 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY AFTERNOON...

.REST OF TODAY...East winds around 20 knots. Seas 5 to 7 feet,
occasionally to 9 feet. Wave Detail: East 6 feet at 7 seconds. A
slight chance of showers late this afternoon.
.TONIGHT...Southeast winds 20 to 25 knots. Seas 6 to 9 feet,
occasionally to 11 feet. Wave Detail: Southeast 8 feet at
7 seconds. A slight chance of showers in the late evening and
overnight.
.SATURDAY...South winds 20 to 25 knots. Seas 6 to 9 feet,
occasionally to 11 feet. Wave Detail: South 8 feet at 7 seconds.
A slight chance of showers.
.SATURDAY NIGHT...South winds 15 to 20 knots, diminishing to
10 to 15 knots early in the morning. Seas 5 to 7 feet,
occasionally to 9 feet, subsiding to 4 to 5 feet after midnight.
Wave Detail: South 6 feet at 7 seconds, becoming south 5 feet at
7 seconds. A chance of showers with a slight chance of
thunderstorms in the evening, then showers likely with a chance
of thunderstorms after midnight.
.SUNDAY...South winds 10 to 15 knots, becoming northeast 15 to
20 knots in the afternoon. Seas 4 to 5 feet, building to 5 to
7 feet, occasionally to 9 feet in the afternoon. Wave Detail:
East 5 feet at 7 seconds, becoming northeast 6 feet at 6 seconds.
Showers. A chance of thunderstorms, mainly in the morning.
.SUNDAY NIGHT...Northeast winds 15 to 20 knots. Seas 5 to 7 feet,
occasionally to 9 feet. Wave Detail: North 6 feet at 7 seconds
and south 1 foot at 5 seconds. Showers. A slight chance of
thunderstorms late in the evening.
.MONDAY...Northeast winds 10 to 15 knots, becoming northwest in
the afternoon. Seas 4 to 5 feet. Showers likely with a slight
chance of thunderstorms in the morning, then a chance of showers
in the afternoon.
.MONDAY NIGHT...North winds 10 to 15 knots, increasing to 15 to
20 knots early in the morning. Seas 4 to 5 feet, building to 5 to
7 feet, occasionally to 9 feet after midnight. A chance of
showers in the evening, then showers likely after midnight.
.TUESDAY...North winds 15 to 20 knots, becoming northeast 10 to
15 knots late in the afternoon. Seas 5 to 7 feet, occasionally to
9 feet. A chance of showers, mainly in the morning.
.TUESDAY NIGHT...Northeast winds 10 to 15 knots, becoming east
after midnight. Seas 3 to 5 feet. A slight chance of showers.

Winds and seas higher in and near thunderstorms.

$$