National Weather Service Marine Forecast FZUS54 KBRO

FZUS54 KBRO 071847
CWFBRO

Coastal Waters Forecast for the Lower Texas Coast
National Weather Service Brownsville TX
147 PM CDT Tue Jul 7 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.

GMZ100-080715
147 PM CDT Tue Jul 7 2026

SYNOPSIS
Favorable marine conditions will prevail through the next several days with a modest pressure gradient in place. The gradient may then strengthen later this week, allowing for stronger winds, higher seas, and the potential for caution conditions. Low rain chances will continue today and Wednesday with increasing shower and thunderstorm chances Thursday through the weekend.

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GMZ130-132-135-080715
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
147 PM CDT Tue Jul 7 2026

TONIGHT
Southeast winds 10 to 15 knots, becoming south early this morning. A moderate chop on the bay, diminishing to light chop early this morning.

WEDNESDAY
South winds 5 to 10 knots, becoming southeast 10 to 15 knots in the afternoon. A moderate chop on the bay.

WEDNESDAY NIGHT
Southeast winds 10 to 15 knots, becoming south 5 to 10 knots early in the morning. A moderate chop on the bay, diminishing to light chop early in the morning.

THURSDAY
South winds 5 to 10 knots, becoming southeast 10 to 15 knots in the afternoon. A moderate chop on the bay. A slight chance of showers and thunderstorms in the afternoon.

THURSDAY NIGHT
Southeast winds 10 to 15 knots. A moderate chop on the bay. A slight chance of showers and thunderstorms early in the morning.

FRIDAY
Southeast winds 10 to 15 knots. A moderate chop on the bay. A slight chance of showers and thunderstorms.

FRIDAY NIGHT
Southeast winds 10 to 15 knots. A moderate chop on the bay. A slight chance of showers and thunderstorms early in the evening. A slight chance of showers and thunderstorms after midnight.

SATURDAY
Southeast winds 10 to 15 knots. A moderate chop on the bay. A slight chance of showers and thunderstorms.

SATURDAY NIGHT
Southeast winds 10 to 15 knots. A moderate chop on the bay. A slight chance of showers.

SUNDAY
Southeast winds 10 to 15 knots. A moderate chop on the bay. A slight chance of showers and thunderstorms.

SUNDAY NIGHT
Southeast winds 10 to 15 knots, diminishing to 5 to 10 knots early in the morning. A moderate chop on the bay, diminishing to light chop early in the morning. A slight chance of showers and thunderstorms early in the evening.

Winds and waves higher in and near thunderstorms.

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GMZ150-155-080715
Gulf waters from Port Mansfield to the Rio Grande out 20 nm
Gulf waters from Baffin Bay to Port Mansfield out 20 nm
147 PM CDT Tue Jul 7 2026

TONIGHT
Southeast winds 10 to 15 knots, becoming south early this morning. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 5 seconds.

WEDNESDAY
South winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at 5 seconds.

WEDNESDAY NIGHT
South winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 6 seconds.

THURSDAY
Southeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 6 seconds. A slight chance of showers and thunderstorms in the afternoon.

THURSDAY NIGHT
Southeast winds 10 to 15 knots. Seas 2 to 4 feet. Wave Detail: Southeast 3 feet at 6 seconds. A slight chance of showers and thunderstorms until early morning, then a chance of showers and thunderstorms early in the morning.

FRIDAY
Southeast winds 10 to 15 knots. Seas 3 to 4 feet. Wave Detail: Southeast 3 feet at 6 seconds. A chance of showers and thunderstorms until late afternoon.

FRIDAY NIGHT
Southeast winds 10 to 15 knots. Seas 3 to 4 feet. A slight chance of thunderstorms. A slight chance of showers in the evening, then a chance of showers after midnight.

SATURDAY
Southeast winds 10 to 15 knots. Seas 3 to 4 feet. A slight chance of thunderstorms. A chance of showers early in the morning, then a slight chance of showers in the afternoon.

SATURDAY NIGHT
Southeast winds 10 to 15 knots. Seas 3 to 4 feet. A slight chance of thunderstorms early in the evening. A slight chance of showers.

SUNDAY
Southeast winds 10 to 15 knots. Seas 3 to 4 feet. A slight chance of showers and thunderstorms.

SUNDAY NIGHT
Southeast winds 10 to 15 knots. Seas 3 to 4 feet. A slight chance of showers and thunderstorms early in the evening.

Winds and seas higher in and near thunderstorms.

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GMZ170-175-080715
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
147 PM CDT Tue Jul 7 2026

TONIGHT
Southeast winds around 10 knots, becoming south after midnight. Seas 2 to 4 feet. Wave Detail: Southeast 3 feet at 5 seconds.

WEDNESDAY
South winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at 6 seconds.

WEDNESDAY NIGHT
Southeast winds 10 to 15 knots. Seas 2 to 4 feet. Wave Detail: Southeast 3 feet at 6 seconds.

THURSDAY
Southeast winds 10 to 15 knots. Seas 3 to 4 feet. Wave Detail: Southeast 3 feet at 6 seconds. A slight chance of showers and thunderstorms.

THURSDAY NIGHT
Southeast winds 10 to 15 knots. Seas 3 to 4 feet. Wave Detail: Southeast 3 feet at 5 seconds. A chance of showers and thunderstorms.

FRIDAY
Southeast winds 10 to 15 knots. Seas 3 to 4 feet. Wave Detail: Southeast 3 feet at 6 seconds. A chance of showers and thunderstorms.

FRIDAY NIGHT
Southeast winds 10 to 15 knots. Seas 3 to 4 feet. A slight chance of thunderstorms. A slight chance of showers in the evening, then a chance of showers after midnight.

SATURDAY
Southeast winds 10 to 15 knots. Seas 3 to 4 feet. A slight chance of thunderstorms. A chance of showers, mainly in the morning.

SATURDAY NIGHT
Southeast winds 10 to 15 knots. Seas 3 to 5 feet. A slight chance of showers and thunderstorms early in the evening. A slight chance of showers and thunderstorms after midnight.

SUNDAY
Southeast winds 10 to 15 knots. Seas 4 to 5 feet. A slight chance of showers and thunderstorms.

SUNDAY NIGHT
Southeast winds 10 to 15 knots. Seas 4 to 5 feet. A slight chance of showers and thunderstorms early in the evening.

Winds and seas higher in and near thunderstorms.