462
FZUS54 KBRO 151716
CWFBRO

Coastal Waters Forecast for the Lower Texas Coast
National Weather Service Brownsville TX
Issued by National Weather Service Lake Charles LA
1116 AM CST Mon Dec 15 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.

GMZ100-160615-
1116 AM CST Mon Dec 15 2025

.SYNOPSIS...
Most of the impacts today are on the marine side, even with the
decreasing winds and waves. Multiple hazards are in effect both
along the coast and offshore. Along the coast, there is a high rip
current risk, high surf advisory, and a beach hazard statment until
6 PM this evening. Wave heights are between 4 and 6 feet and have
a swell of 8 seconds, leading to surf heights of 5 to 7 feet.
Offshore winds are above the 20-knot threshold for a small craft
advisory; similar to the coastal hazards, winds will fall below
hazardous levels this evening.

In the extended forecast, rain chances will return on Wednesday,
followed by a weak cold front on Friday.

$$

GMZ130-132-135-160615-
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-
1116 AM CST Mon Dec 15 2025

.TONIGHT...Northeast winds 5 to 10 knots, becoming east after
midnight. Light chop on the bay.
.TUESDAY...East winds 5 to 10 knots, becoming southeast 10 to
15 knots in the afternoon. A moderate chop on the bay.
.TUESDAY NIGHT...Southeast winds 5 to 10 knots. Light chop on the
bay. A slight chance of showers in the evening, then a chance of
showers with a slight chance of thunderstorms after midnight.
.WEDNESDAY...Southeast winds 5 to 10 knots. Light chop on the
bay. A slight chance of thunderstorms. Showers likely.
.WEDNESDAY NIGHT...Southeast winds 5 to 10 knots, becoming south
after midnight. Light chop on the bay. A slight chance of showers
in the evening.
.THURSDAY...South winds around 5 knots, becoming southeast late
in the afternoon. Smooth on the bay.
.THURSDAY NIGHT...Southeast winds 5 to 10 knots, becoming
northeast after midnight. Light chop on the bay.
.FRIDAY...Northeast winds 5 to 10 knots. Light chop on the bay.
.FRIDAY NIGHT...East winds around 5 knots, becoming south after
midnight. Smooth on the bay, increasing to light chop after
midnight.
.SATURDAY...South winds 5 to 10 knots, increasing to 10 to
15 knots in the afternoon. A moderate chop on the bay.
.SATURDAY NIGHT...South winds around 10 knots. Light chop on the
bay.

Winds and waves higher in and near thunderstorms.

$$

GMZ150-155-160615-
Gulf waters from Port Mansfield to the Rio Grande out 20 nm-
Gulf waters from Baffin Bay to Port Mansfield out 20 nm-
1116 AM CST Mon Dec 15 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM CST THIS EVENING...

.TONIGHT...Northeast winds around 10 knots, becoming southeast
early this morning. Seas 3 to 4 feet. Wave Detail: Northeast
4 feet at 7 seconds.
.TUESDAY...Southeast winds around 10 knots. Seas 3 to 4 feet.
Wave Detail: East 3 feet at 7 seconds.
.TUESDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to
4 feet. Wave Detail: East 3 feet at 6 seconds. A slight chance of
showers in the evening, then a chance of showers with a slight
chance of thunderstorms after midnight.
.WEDNESDAY...Southeast winds around 10 knots. Seas 3 to 4 feet.
Wave Detail: Southeast 3 feet at 6 seconds. Showers likely with a
chance of thunderstorms in the morning, then showers likely with
a slight chance of thunderstorms in the afternoon.
.WEDNESDAY NIGHT...Southeast winds around 10 knots, becoming
south early in the morning. Seas 2 to 4 feet. Wave Detail:
Southeast 2 feet at 7 seconds. A chance of showers, mainly in the
evening.
.THURSDAY...South winds 5 to 10 knots, becoming southeast late in
the afternoon. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at
6 seconds.
.THURSDAY NIGHT...Southeast winds 5 to 10 knots, becoming
northeast after midnight. Seas 2 to 3 feet.
.FRIDAY...Northeast winds 5 to 10 knots. Seas 2 to 4 feet.
.FRIDAY NIGHT...East winds 5 to 10 knots, becoming south early in
the morning. Seas 3 to 4 feet.
.SATURDAY...South winds 10 to 15 knots. Seas 3 to 4 feet.
.SATURDAY NIGHT...South winds 10 to 15 knots.

Winds and seas higher in and near thunderstorms.

$$

GMZ170-175-160615-
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-
1116 AM CST Mon Dec 15 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM CST THIS EVENING...

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

Winds and seas higher in and near thunderstorms.

$$