Coastal Waters Forecast
Issued by NWS Brownsville, TX

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865
FZUS54 KBRO 130714
CWFBRO

Coastal Waters Forecast for the Lower Texas Coast
National Weather Service Brownsville TX
114 AM CST Fri Feb 13 2026

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.

GMZ100-131930-
114 AM CST Fri Feb 13 2026

.SYNOPSIS...An intensifying pressure gradient, combined with the
subsequent passage of a cold front, will produce slightly adverse
marine conditions along the Lower Texas Coast tonight and through
the weekend. Afterwards, lighter winds and lower seas are likely
for the new work week.

$$

GMZ130-132-135-131930-
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-
114 AM CST Fri Feb 13 2026

.TODAY...Southeast winds 5 to 10 knots, increasing to 10 to 15
knots this afternoon. A moderate chop on the bay.
.TONIGHT...Southeast winds 10 to 15 knots. A moderate chop on the
bay.
.SATURDAY...Southeast winds 10 to 15 knots, becoming south 15 to
20 knots in the afternoon. A moderate chop on the bay, increasing
to choppy bay waters in the afternoon. A slight chance of showers
in the morning, then a chance of showers in the afternoon.
.SATURDAY NIGHT...South winds 10 to 15 knots, diminishing to 5 to
10 knots late in the evening, then becoming southwest after
midnight, becoming west early in the morning. A moderate chop on
the bay, diminishing to a light chop on the bay late in the
evening and after midnight, increasing to light chop early in the
morning. A chance of showers with a slight chance of
thunderstorms early in the evening, then a chance of showers late
in the evening.
.SUNDAY...Northwest winds 10 to 15 knots, becoming north late in
the afternoon. A moderate chop on the bay, diminishing to a light
chop on the bay late in the afternoon.
.SUNDAY NIGHT...Northeast winds 5 to 10 knots, diminishing to
around 5 knots early in the morning. A light chop on the bay.
.MONDAY...Northeast winds around 5 knots, becoming east in the
afternoon. A light chop on the bay.
.MONDAY NIGHT...Southeast winds 5 to 10 knots. A light chop on
the bay.
.TUESDAY...Southeast winds 5 to 10 knots, increasing to 10 to
15 knots in the afternoon. A moderate chop on the bay.
.TUESDAY NIGHT...Southeast winds 10 to 15 knots. A moderate chop
on the bay.

Winds and waves higher in and near thunderstorms.

$$

GMZ150-155-131930-
Gulf waters from Port Mansfield to the Rio Grande out 20 nm-
Gulf waters from Baffin Bay to Port Mansfield out 20 nm-
114 AM CST Fri Feb 13 2026

.TODAY...Southeast winds 5 to 10 knots, increasing to 10 to
15 knots late this afternoon. Seas 2 to 3 feet. Wave Detail:
Southeast 2 feet at 5 seconds.
.TONIGHT...Southeast winds 10 to 15 knots. Seas 2 to 4 feet. Wave
Detail: Southeast 4 feet at 6 seconds. A slight chance of showers
early in the morning.
.SATURDAY...South winds 15 to 20 knots. Seas 4 to 6 feet,
occasionally to 8 feet. Wave Detail: Southeast 5 feet at
7 seconds. A chance of showers.
.SATURDAY NIGHT...South winds 10 to 15 knots, becoming southwest
5 to 10 knots after midnight, then becoming west early in the
morning. Seas 4 to 6 feet, occasionally to 8 feet, subsiding to
3 to 4 feet after midnight. Wave Detail: Southeast 5 feet at
7 seconds, becoming southeast 4 feet at 7 seconds. A chance of
showers with a slight chance of thunderstorms early in the
evening, then a chance of showers late in the evening.
.SUNDAY...Northwest winds 10 to 15 knots, becoming north early in
the afternoon, then diminishing to 5 to 10 knots late in the
afternoon. Seas 3 to 5 feet. Wave Detail: Southeast 4 feet at
7 seconds and north 3 feet at 4 seconds.
.SUNDAY NIGHT...Northeast winds 5 to 10 knots. Seas 2 to 4 feet.
Wave Detail: Southeast 3 feet at 6 seconds.
.MONDAY...Northeast winds around 5 knots, becoming east late in
the afternoon. Seas 2 to 3 feet.
.MONDAY NIGHT...Southeast winds 5 to 10 knots, becoming around
10 knots after midnight. Seas 2 to 3 feet.
.TUESDAY...Southeast winds 10 to 15 knots. Seas 2 to 3 feet.
.TUESDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to
4 feet.

Winds and seas higher in and near thunderstorms.

$$

GMZ170-175-131930-
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-
114 AM CST Fri Feb 13 2026

.TODAY...Southeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 2 feet at 5 seconds.
.TONIGHT...Southeast winds 15 to 20 knots. Seas 3 to 5 feet. Wave
Detail: Southeast 5 feet at 6 seconds.
.SATURDAY...South winds 15 to 20 knots. Seas 5 to 7 feet,
occasionally to 9 feet. Wave Detail: Southeast 6 feet at
6 seconds. A chance of showers.
.SATURDAY NIGHT...South winds 10 to 15 knots, becoming west early
in the morning. Seas 4 to 6 feet, occasionally to 8 feet. Wave
Detail: Southeast 5 feet at 7 seconds. A slight chance of
thunderstorms. A chance of showers, mainly in the evening.
.SUNDAY...Northwest winds 10 to 15 knots, becoming north in the
afternoon. Seas 4 to 5 feet. Wave Detail: Northwest 4 feet at
5 seconds and southeast 4 feet at 7 seconds.
.SUNDAY NIGHT...Northeast winds 5 to 10 knots. Seas 3 to 5 feet.
Wave Detail: Northwest 3 feet at 5 seconds and east 3 feet at
7 seconds.
.MONDAY...Northeast winds 5 to 10 knots, becoming east late in
the afternoon. Seas 2 to 4 feet.
.MONDAY NIGHT...Southeast winds 5 to 10 knots, becoming around
10 knots after midnight. Seas 2 to 3 feet.
.TUESDAY...South winds 10 to 15 knots. Seas 2 to 3 feet.
.TUESDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 4 feet.

Winds and seas higher in and near thunderstorms.

$$