194
FZUS54 KBRO 171747
CWFBRO

Coastal Waters Forecast for the Lower Texas Coast
National Weather Service Brownsville TX
1147 AM CST Mon Nov 17 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.

GMZ100-180615-
1147 AM CST Mon Nov 17 2025

.SYNOPSIS...Small Craft Exercise Caution conditions will prevail
each afternoon along the Laguna Madre and Gulf waters due to a
locally enhanced pressure gradient. The pressure gradient will
strengthen ahead of an approaching upper level system and
attendant cold front, which will likely bring Small Craft Advisory
conditions by mid week and continuing through at least Thursday
night. There should be improvement by the end of the week and into
the weekend. Low (20-30%) rain chances return Thursday through
the weekend.

$$

GMZ130-132-135-180615-
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-
1147 AM CST Mon Nov 17 2025

.TONIGHT...Southeast winds 10 to 15 knots. A moderate chop on the
bay.
.TUESDAY...Southeast winds 10 to 15 knots. A moderate chop on the
bay.
.TUESDAY NIGHT...Southeast winds 10 to 15 knots. A moderate chop
on the bay.
.WEDNESDAY...Southeast winds 10 to 15 knots, increasing to 15 to
20 knots in the afternoon. A moderate chop on the bay, increasing
to choppy in the afternoon.
.WEDNESDAY NIGHT...Southeast winds 10 to 15 knots, increasing to
15 to 20 knots after midnight. A moderate chop on the bay,
increasing to choppy after midnight. A slight chance of showers
after midnight.
.THURSDAY...Southeast winds 15 to 20 knots. Choppy on the bay. A
slight chance of showers.
.THURSDAY NIGHT...South winds 10 to 15 knots. A moderate chop on
the bay. A slight chance of showers in the evening.
.FRIDAY...South winds 5 to 10 knots, becoming southeast 10 to
15 knots in the afternoon. Light chop on the bay, increasing to a
moderate chop in the afternoon. A slight chance of showers in the
morning, then a chance of showers with a slight chance of
thunderstorms in the afternoon.
.FRIDAY NIGHT...Southeast winds 5 to 10 knots. Light chop on the
bay. A slight chance of thunderstorms. A slight chance of showers
in the evening, then a chance of showers after midnight.
.SATURDAY...East winds 10 to 15 knots. A moderate chop on the
bay. A slight chance of thunderstorms. A chance of showers,
mainly in the morning.
.SATURDAY NIGHT...Southeast winds 5 to 10 knots. Light chop on
the bay. A slight chance of showers.

Winds and waves higher in and near thunderstorms.

$$

GMZ150-155-180615-
Gulf waters from Port Mansfield to the Rio Grande out 20 nm-
Gulf waters from Baffin Bay to Port Mansfield out 20 nm-
1147 AM CST Mon Nov 17 2025

.TONIGHT...Southeast winds 10 to 15 knots. Seas 3 to 4 feet. Wave
Detail: Southeast 4 feet at 5 seconds.
.TUESDAY...Southeast winds 10 to 15 knots. Seas 3 to 4 feet. Wave
Detail: Southeast 3 feet at 5 seconds.
.TUESDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to
4 feet. Wave Detail: Southeast 4 feet at 6 seconds. A slight
chance of showers. A slight chance of thunderstorms in the late
evening and overnight.
.WEDNESDAY...Southeast winds 10 to 15 knots. Seas 3 to 4 feet.
Wave Detail: Southeast 4 feet at 6 seconds. A slight chance of
showers in the morning.
.WEDNESDAY NIGHT...Southeast winds 15 to 20 knots. Seas 3 to
5 feet. Wave Detail: Southeast 5 feet at 6 seconds. A slight
chance of showers.
.THURSDAY...Southeast winds 15 to 20 knots. Seas 4 to 5 feet.
Wave Detail: Southeast 5 feet at 6 seconds. A slight chance of
showers.
.THURSDAY NIGHT...South winds 10 to 15 knots. Seas 4 to 5 feet. A
slight chance of showers.
.FRIDAY...South winds 10 to 15 knots. Seas 3 to 4 feet. A chance
of showers with a slight chance of thunderstorms.
.FRIDAY NIGHT...Southeast winds 5 to 10 knots. Seas 3 to 4 feet.
A chance of showers with a slight chance of thunderstorms.
.SATURDAY...East winds 10 to 15 knots. Seas 3 to 4 feet. A chance
of showers with a slight chance of thunderstorms.
.SATURDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to
4 feet. A chance of showers.

Winds and seas higher in and near thunderstorms.

$$

GMZ170-175-180615-
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-
1147 AM CST Mon Nov 17 2025

...SMALL CRAFT SHOULD EXERCISE CAUTION...

.TONIGHT...Southeast winds 15 to 20 knots. Seas 3 to 5 feet. Wave
Detail: Southeast 4 feet at 5 seconds.
.TUESDAY...Southeast winds 10 to 15 knots. Seas 3 to 4 feet. Wave
Detail: Southeast 4 feet at 5 seconds.
.TUESDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to
4 feet. Wave Detail: Southeast 4 feet at 5 seconds. A slight
chance of showers and thunderstorms early in the evening, then a
slight chance of showers late in the evening.
.WEDNESDAY...Southeast winds 10 to 15 knots. Seas 4 to 5 feet.
Wave Detail: Southeast 4 feet at 6 seconds. A slight chance of
showers and thunderstorms.
.WEDNESDAY NIGHT...Southeast winds 15 to 20 knots. Seas 4 to
5 feet. Wave Detail: Southeast 5 feet at 6 seconds. A slight
chance of showers.
.THURSDAY...Southeast winds 15 to 20 knots. Seas 4 to 6 feet,
occasionally to 8 feet. Wave Detail: Southeast 5 feet at
6 seconds. A slight chance of showers.
.THURSDAY NIGHT...South winds around 15 knots. Seas 4 to 5 feet.
A slight chance of showers.
.FRIDAY...South winds 10 to 15 knots. Seas 4 to 5 feet. A chance
of showers with a slight chance of thunderstorms.
.FRIDAY NIGHT...Southeast winds 10 to 15 knots. Seas 4 to 5 feet.
A chance of showers. A chance of thunderstorms, mainly in the
evening.
.SATURDAY...East winds 10 to 15 knots. Seas 4 to 5 feet. A chance
of showers with a slight chance of thunderstorms.
.SATURDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to
4 feet. A chance of showers.

Winds and seas higher in and near thunderstorms.

$$