National Weather Service Marine Forecast FZUS54 KBRO

FZUS54 KBRO 251733
CWFBRO

Coastal Waters Forecast for the Lower Texas Coast
National Weather Service Brownsville TX
1233 PM CDT Wed Mar 25 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.

GMZ100-260615
1233 PM CDT Wed Mar 25 2026

SYNOPSIS
Favorable conditions will prevail along the Lower Texas Coast through the next several days, with light to moderate winds and low to moderate seas. The pressure gradient is expected to strengthen late week and could lead to caution conditions, mainly on the Laguna Madre Thursday afternoon.

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GMZ130-132-135-260615
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
1233 PM CDT Wed Mar 25 2026

TONIGHT
Southeast winds 10 to 15 knots. A moderate chop on the bay.

THURSDAY
Southeast winds 10 to 15 knots, increasing to 15 to 20 knots late in the afternoon. A moderate chop on the bay, increasing to choppy late in the afternoon.

THURSDAY NIGHT
Southeast winds 15 to 20 knots, diminishing to 10 to 15 knots in the late evening and overnight. Choppy on the bay, diminishing to a moderate chop in the late evening and overnight.

FRIDAY
Southeast winds 10 to 15 knots, becoming around 15 knots late in the afternoon. A moderate chop on the bay.

FRIDAY NIGHT
East winds 10 to 15 knots, diminishing to 5 to 10 knots after midnight. Light chop on the bay.

SATURDAY
Northeast winds 5 to 10 knots, increasing to 10 to 15 knots in the afternoon. A moderate chop on the bay. A chance of showers until late afternoon, then a slight chance of showers late in the afternoon.

SATURDAY NIGHT
East winds 10 to 15 knots, diminishing to 5 to 10 knots after midnight. A moderate chop on the bay, diminishing to light chop after midnight. A slight chance of showers early in the evening.

SUNDAY
Southeast winds 5 to 10 knots, becoming east 10 to 15 knots late in the afternoon. Light chop on the bay, increasing to a moderate chop late in the afternoon.

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.

MONDAY
Southeast winds 5 to 10 knots, increasing to 10 to 15 knots in the afternoon. A moderate chop on the bay.

MONDAY NIGHT
Southeast winds 10 to 15 knots. A moderate chop on the bay.

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GMZ150-155-260615
Gulf waters from Port Mansfield to the Rio Grande out 20 nm
Gulf waters from Baffin Bay to Port Mansfield out 20 nm
1233 PM CDT Wed Mar 25 2026

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

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

THURSDAY NIGHT
Southeast winds 10 to 15 knots. Seas 3 to 4 feet. Wave Detail: Southeast 3 feet at 5 seconds.

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

FRIDAY NIGHT
East winds 10 to 15 knots, diminishing to 5 to 10 knots after midnight. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 6 seconds.

SATURDAY
Northeast winds 5 to 10 knots, increasing to 10 to 15 knots in the afternoon. Seas 2 to 3 feet. Wave Detail: East 3 feet at 6 seconds and southeast 2 feet at 6 seconds. A chance of showers until late afternoon, then a slight chance of showers late in the afternoon.

SATURDAY NIGHT
East winds 10 to 15 knots, diminishing to 5 to 10 knots early in the morning. Seas 3 to 4 feet. A slight chance of showers early in the evening.

SUNDAY
East winds 5 to 10 knots. Seas 2 to 3 feet.

SUNDAY NIGHT
East winds around 10 knots, becoming southeast early in the morning. Seas 3 to 4 feet.

MONDAY
Southeast winds 5 to 10 knots. Seas 3 to 4 feet.

MONDAY NIGHT
Southeast winds around 10 knots. Seas 3 to 4 feet.

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GMZ170-175-260615
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
1233 PM CDT Wed Mar 25 2026

TONIGHT
Southeast winds 10 to 15 knots. Seas 3 to 4 feet. Wave Detail: Southeast 3 feet at 5 seconds.

THURSDAY
Southeast winds 10 to 15 knots. Seas 3 to 4 feet. Wave Detail: Southeast 3 feet at 5 seconds.

THURSDAY NIGHT
Southeast winds 10 to 15 knots. Seas 3 to 4 feet. Wave Detail: Southeast 4 feet at 5 seconds.

FRIDAY
Southeast winds 10 to 15 knots, becoming around 10 knots late in the afternoon. Seas 3 to 4 feet. Wave Detail: Southeast 4 feet at 6 seconds.

FRIDAY NIGHT
East winds around 10 knots, becoming 5 to 10 knots early in the morning. Seas 3 to 4 feet. Wave Detail: Southeast 3 feet at 6 seconds.

SATURDAY
Northeast winds 5 to 10 knots, increasing to 10 to 15 knots in the afternoon. Seas 2 to 4 feet. Wave Detail: East 4 feet at 6 seconds. A chance of showers until late afternoon, then a slight chance of showers late in the afternoon.

SATURDAY NIGHT
East winds 10 to 15 knots, becoming around 10 knots early in the morning. Seas 3 to 4 feet.

SUNDAY
East winds 5 to 10 knots. Seas 3 to 4 feet.

SUNDAY NIGHT
East winds around 10 knots, becoming southeast early in the morning. Seas 3 to 4 feet.

MONDAY
Southeast winds around 10 knots. Seas 3 to 4 feet.

MONDAY NIGHT
Southeast winds 10 to 15 knots. Seas 3 to 5 feet.