National Weather Service Marine Forecast FZUS54 KBRO

FZUS54 KBRO 102234
CWFBRO

Coastal Waters Forecast for the Lower Texas Coast
National Weather Service Brownsville TX
434 PM CST Tue Nov 10 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.

GMZ100-111115
434 PM CST Tue Nov 10 2026

SYNOPSIS
Generally favorable marine conditions will occur along the Lower Texas Coast through the next several days. However, the pressure gradient will become enhanced beginning during the weekend, leading to the possibility of Small Craft Should Exercise Caution and Small Craft Advisory.

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GMZ130-132-135-111115
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
434 PM CST Tue Nov 10 2026

TONIGHT
Northwest winds around 5 knots increasing to 5 to 10 knots after midnight. Smooth on the bay becoming light chop after midnight. A slight chance of showers.

WEDNESDAY
Northwest winds 5 to 10 knots. Light chop on the bay. A slight chance of showers.

WEDNESDAY NIGHT
North winds 5 to 10 knots increasing to 10 to 15 knots after midnight. Light chop on the bay becoming a moderate chop after midnight.

THURSDAY
North winds 10 to 15 knots. A moderate chop on the bay.

THURSDAY NIGHT
North winds 5 to 10 knots. Light chop on the bay.

FRIDAY
Northeast winds 5 to 10 knots becoming east in the afternoon. Light chop on the bay.

FRIDAY NIGHT
Southeast winds 5 to 10 knots. Light chop on the bay.

SATURDAY
Southeast winds 10 to 15 knots. A moderate chop on the bay. A slight chance of showers in the morning, then a chance of showers with a slight chance of thunderstorms in the afternoon.

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

SUNDAY
East winds 10 to 15 knots. A moderate chop on the bay. A chance of showers with a slight chance of thunderstorms.

SUNDAY NIGHT
East winds 5 to 10 knots. Light chop on the bay. A slight chance of showers in the evening, then a chance of showers after midnight.

Winds and waves higher in and near thunderstorms.

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GMZ150-155-111115
Gulf waters from Port Mansfield to the Rio Grande out 20 nm
Gulf waters from Baffin Bay to Port Mansfield out 20 nm
434 PM CST Tue Nov 10 2026

TONIGHT
Northwest winds around 5 knots increasing to 5 to 10 knots after midnight. Seas 2 to 3 feet. Wave Detail: East 2 feet at 5 seconds. A slight chance of thunderstorms this evening. A chance of showers.

WEDNESDAY
North winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: East 2 feet at 5 seconds. A slight chance of showers.

WEDNESDAY NIGHT
North winds 5 to 10 knots increasing to 10 to 15 knots after midnight. Seas 2 to 3 feet. Wave Detail: East 2 feet at 5 seconds. A slight chance of showers.

THURSDAY
North winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: Northeast 2 feet at 4 seconds.

THURSDAY NIGHT
North winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: Northeast 2 feet at 5 seconds.

FRIDAY
Northeast winds 5 to 10 knots. Seas 1 to 2 feet. Wave Detail: Northeast 2 feet at 5 seconds.

FRIDAY NIGHT
East winds 5 to 10 knots becoming southeast 10 to 15 knots after midnight. Seas 1 to 2 feet.

SATURDAY
Southeast winds 10 to 15 knots. Seas 2 to 4 feet. A slight chance of showers in the morning, then a chance of showers with a slight chance of thunderstorms in the afternoon.

SATURDAY NIGHT
Southeast winds 15 to 20 knots. Seas 3 to 5 feet. A chance of thunderstorms in the evening. A chance of showers. A slight chance of thunderstorms after midnight.

SUNDAY
East winds 10 to 15 knots. Seas 4 to 5 feet. A chance of showers with a slight chance of thunderstorms.

SUNDAY NIGHT
East winds 10 to 15 knots decreasing to 5 to 10 knots after midnight. Seas 4 to 5 feet. A chance of showers.

Winds and seas higher in and near thunderstorms.

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GMZ170-175-111115
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
434 PM CST Tue Nov 10 2026

TONIGHT
South winds 5 to 10 knots becoming west after midnight. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at 5 seconds. A chance of showers with a slight chance of thunderstorms.

WEDNESDAY
Northwest winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: East 2 feet at 5 seconds. A slight chance of thunderstorms in the morning. A chance of showers.

WEDNESDAY NIGHT
North winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: North 2 feet at 3 seconds and east 2 feet at 5 seconds. A chance of showers.

THURSDAY
North winds 10 to 15 knots. Seas 2 to 4 feet. Wave Detail: Northeast 3 feet at 4 seconds. A slight chance of showers in the morning. A chance of showers in the afternoon.

THURSDAY NIGHT
North winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: Northeast 3 feet at 5 seconds.

FRIDAY
Northeast winds 10 to 15 knots becoming east 5 to 10 knots in the afternoon. Seas 2 to 3 feet. Wave Detail: Northeast 2 feet at 4 seconds.

FRIDAY NIGHT
East winds 5 to 10 knots becoming southeast 10 to 15 knots after midnight. Seas 2 to 3 feet.

SATURDAY
Southeast winds 15 to 20 knots. Seas 2 to 4 feet. A slight chance of showers in the morning, then a chance of showers with a slight chance of thunderstorms in the afternoon.

SATURDAY NIGHT
Southeast winds 15 to 20 knots. Seas 4 to 5 feet building to 5 to 7 feet, with occasional seas up to 8 feet after midnight. A chance of thunderstorms in the evening. Showers likely. A slight chance of thunderstorms after midnight.

SUNDAY
Southeast winds 15 to 20 knots becoming east in the afternoon. Seas 5 to 7 feet, with occasional seas up to 8 feet. Showers likely in the morning. A slight chance of thunderstorms. A chance of showers in the afternoon.

SUNDAY NIGHT
East winds 10 to 15 knots. Seas 5 to 7 feet, with occasional seas up to 8 feet. A chance of showers.

Winds and seas higher in and near thunderstorms.