National Weather Service Marine Forecast FZUS54 KBRO

FZUS54 KBRO 271822
CWFBRO

Coastal Waters Forecast for the Lower Texas Coast
National Weather Service Brownsville TX
122 PM CDT Mon Jul 27 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.

GMZ100-280715
122 PM CDT Mon Jul 27 2026

SYNOPSIS
Generally moderate winds and seas are expected along the Lower Texas Coast with a modest pressure gradient in place. Although Small Craft Advisory is not likely to be needed, Small Craft Should Exercise Caution will be needed occasionally due to winds, and mainly for the Laguna Madre.

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GMZ130-132-135-280715
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
122 PM CDT Mon Jul 27 2026

SMALL CRAFT CAUTION

TONIGHT
Southeast winds 15 to 20 knots, becoming south 10 to 15 knots early this morning. Choppy on the bay, diminishing to a moderate chop early this morning.

TUESDAY
South winds 10 to 15 knots, becoming southeast 15 to 20 knots in the afternoon. Choppy on the bay.

TUESDAY NIGHT
Southeast winds 15 to 20 knots, becoming south 10 to 15 knots early in the morning. Choppy on the bay, diminishing to a moderate chop early in the morning.

WEDNESDAY
Southeast winds 10 to 15 knots, increasing to 15 to 20 knots in the afternoon. Choppy on the bay.

WEDNESDAY NIGHT
Southeast winds 15 to 20 knots, diminishing to 10 to 15 knots after midnight. 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 10 to 15 knots. A moderate chop on the bay.

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

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

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

SATURDAY NIGHT
South winds 10 to 15 knots. A moderate chop on the bay.

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GMZ150-155-280715
Gulf waters from Port Mansfield to the Rio Grande out 20 nm
Gulf waters from Baffin Bay to Port Mansfield out 20 nm
122 PM CDT Mon Jul 27 2026

SMALL CRAFT CAUTION

TONIGHT
South winds 15 to 20 knots. Seas 3 to 4 feet. Wave Detail: Southeast 3 feet at 5 seconds.

TUESDAY
South winds 15 to 20 knots. Seas 3 to 4 feet. Wave Detail: Southeast 3 feet at 5 seconds.

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

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

WEDNESDAY NIGHT
Southeast winds 10 to 15 knots. Seas 3 to 4 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 5 seconds.

THURSDAY NIGHT
Southeast winds 10 to 15 knots. Seas 2 to 4 feet.

FRIDAY
Southeast winds 10 to 15 knots. Seas 2 to 3 feet.

FRIDAY NIGHT
Southeast winds 10 to 15 knots, becoming south early in the morning. Seas 2 to 4 feet.

SATURDAY
South winds 10 to 15 knots. Seas 2 to 4 feet.

SATURDAY NIGHT
South winds 10 to 15 knots. Seas 3 to 5 feet.

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GMZ170-175-280715
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
122 PM CDT Mon Jul 27 2026

TONIGHT
South winds 10 to 15 knots, increasing to 15 to 20 knots after midnight. Seas 2 to 4 feet. Wave Detail: Southeast 4 feet at 5 seconds.

TUESDAY
South winds around 15 knots. Seas 3 to 4 feet. Wave Detail: South 4 feet at 5 seconds.

TUESDAY NIGHT
South winds around 15 knots. Seas 3 to 4 feet. Wave Detail: Southeast 3 feet at 5 seconds.

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

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

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

THURSDAY NIGHT
Southeast winds 10 to 15 knots, becoming south early in the morning. Seas 3 to 4 feet.

FRIDAY
South winds 10 to 15 knots. Seas 2 to 3 feet.

FRIDAY NIGHT
South winds 10 to 15 knots. Seas 2 to 4 feet.

SATURDAY
South winds 10 to 15 knots. Seas 3 to 4 feet.

SATURDAY NIGHT
South winds 10 to 15 knots, increasing to 15 to 20 knots after midnight. Seas 3 to 4 feet.