Coastal Waters Forecast
Issued by NWS Brownsville, TX

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594
FZUS54 KBRO 151721
CWFBRO

Coastal Waters Forecast for the Lower Texas Coast
National Weather Service Brownsville TX
1221 PM CDT Wed Oct 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-
1221 PM CDT Wed Oct 15 2025

.SYNOPSIS...Overall favorable conditions are expected through the
forecast period. Light to moderate onshore winds, moderate to
slight seas, and generally rain-free conditions should prevail
through the weekend into early next week.

$$

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-
1221 PM CDT Wed Oct 15 2025

.REST OF TODAY...East winds 5 to 10 knots. Light chop on the bay.
.TONIGHT...East winds 5 to 10 knots, becoming southeast after
midnight. Light chop on the bay.
.THURSDAY...Southeast winds around 5 knots, increasing to 5 to
10 knots in the afternoon. Smooth on the bay, increasing to light
chop in the afternoon.
.THURSDAY NIGHT...Southeast winds 5 to 10 knots. Light chop on
the bay.
.FRIDAY...South winds 5 to 10 knots, becoming southeast in the
afternoon. Light chop on the bay.
.FRIDAY NIGHT...Southeast winds 5 to 10 knots. Light chop on the
bay.
.SATURDAY...South winds 5 to 10 knots. Light chop on the bay.
.SATURDAY NIGHT...Southeast winds 5 to 10 knots, becoming south
after midnight. Light chop on the bay.
.SUNDAY...West winds 5 to 10 knots, becoming northeast in the
afternoon. Light chop on the bay.
.SUNDAY NIGHT...East winds 5 to 10 knots. Light chop on the bay.

$$

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-
1221 PM CDT Wed Oct 15 2025

.REST OF TODAY...Northeast winds 5 to 10 knots. Seas 2 to 3 feet.
Wave Detail: East 2 feet at 5 seconds.
.TONIGHT...East winds 5 to 10 knots, becoming southeast after
midnight. Seas 2 to 3 feet. Wave Detail: East 2 feet at
5 seconds.
.THURSDAY...Southeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: East 2 feet at 5 seconds.
.THURSDAY NIGHT...Southeast winds 5 to 10 knots. Seas 2 to
3 feet. Wave Detail: East 2 feet at 5 seconds.
.FRIDAY...Southeast winds 5 to 10 knots. Seas 2 to 4 feet. Wave
Detail: Southeast 2 feet at 5 seconds.
.FRIDAY NIGHT...Southeast winds 5 to 10 knots, becoming south
10 to 15 knots after midnight. Seas 3 to 4 feet. Wave Detail:
East 3 feet at 6 seconds.
.SATURDAY...South winds 5 to 10 knots. Seas 3 to 4 feet.
.SATURDAY NIGHT...Southeast winds 5 to 10 knots, becoming south
after midnight. Seas 2 to 4 feet.
.SUNDAY...West winds 5 to 10 knots, becoming northeast in the
afternoon. Seas 2 to 3 feet.
.SUNDAY NIGHT...East winds around 10 knots. Seas 2 to 4 feet.

$$

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-
1221 PM CDT Wed Oct 15 2025

.REST OF TODAY...Northeast winds 5 to 10 knots. Seas 2 to 3 feet.
Wave Detail: East 2 feet at 5 seconds.
.TONIGHT...East winds 5 to 10 knots, becoming southeast after
midnight. Seas 2 to 3 feet. Wave Detail: East 2 feet at
5 seconds.
.THURSDAY...Southeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: East 2 feet at 5 seconds.
.THURSDAY NIGHT...Southeast winds 5 to 10 knots. Seas 2 to
3 feet. Wave Detail: East 2 feet at 5 seconds. A slight chance of
showers and thunderstorms.
.FRIDAY...Southeast winds 5 to 10 knots. Seas 2 to 4 feet. Wave
Detail: East 3 feet at 5 seconds. A slight chance of showers and
thunderstorms.
.FRIDAY 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
and thunderstorms early in the evening, then a slight chance of
showers late in the evening.
.SATURDAY...South winds 5 to 10 knots. Seas 3 to 4 feet.
.SATURDAY NIGHT...South winds 5 to 10 knots. Seas 3 to 4 feet.
.SUNDAY...West winds 5 to 10 knots, becoming northeast in the
afternoon. Seas 3 to 4 feet. A slight chance of showers and
thunderstorms until late afternoon.
.SUNDAY NIGHT...East winds around 10 knots. Seas 3 to 4 feet.

Winds and seas higher in and near thunderstorms.

$$