National Weather Service Marine Forecast FZUS54 KBRO

FZUS54 KBRO 160805
CWFBRO

Coastal Waters Forecast for the Lower Texas Coast
National Weather Service Brownsville TX
205 AM CST Fri Jan 16 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.

GMZ100-162115
205 AM CST Fri Jan 16 2026

SYNOPSIS
Southerly winds and improved marine conditions are expected into tonight. The next cold front arrives early Saturday with northeast winds and building seas. Low to moderate precipitation chances (30-60%) and adverse conditions continue into Sunday. A brief window of favorable conditions is expected later this weekend into Tuesday.

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GMZ130-132-135-162115
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
205 AM CST Fri Jan 16 2026

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

TONIGHT
Southeast winds 5 to 10 knots, becoming northeast after midnight, then increasing to 15 to 20 knots early in the morning. Light chop on the bay, increasing to choppy early in the morning.

SATURDAY
Northeast winds 15 to 20 knots. Choppy on the bay. A slight chance of showers in the morning, then a chance of showers in the afternoon.

SATURDAY NIGHT
North winds 15 to 20 knots, increasing to 20 to 25 knots after midnight, then diminishing to 15 to 20 knots early in the morning. Choppy on the bay, increasing to rough after midnight, then diminishing to choppy early in the morning. A chance of showers, mainly in the evening.

SUNDAY
North winds 10 to 15 knots, becoming northeast 5 to 10 knots late in the afternoon. A moderate chop on the bay, diminishing to light chop late in the afternoon.

SUNDAY NIGHT
East winds 5 to 10 knots, becoming southeast in the late evening and overnight. Light chop on the bay.

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.

TUESDAY
East winds 10 to 15 knots. A moderate chop on the bay. A slight chance of showers in the morning, then a chance of showers in the afternoon.

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

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GMZ150-155-162115
Gulf waters from Port Mansfield to the Rio Grande out 20 nm
Gulf waters from Baffin Bay to Port Mansfield out 20 nm
205 AM CST Fri Jan 16 2026

TODAY
South winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: South 3 feet at 4 seconds and northeast 2 feet at 6 seconds.

TONIGHT
South winds 10 to 15 knots, becoming east after midnight, then becoming northeast 15 to 20 knots early in the morning. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 5 seconds. A slight chance of showers after midnight.

SATURDAY
Northeast winds 20 to 25 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: Northeast 6 feet at 7 seconds and southeast 2 feet at 5 seconds. A slight chance of showers in the morning, then a chance of showers in the afternoon.

SATURDAY NIGHT
North winds 20 to 25 knots. Seas 6 to 9 feet, occasionally to 11 feet. Wave Detail: Northeast 9 feet at 8 seconds. A chance of showers, mainly in the evening.

SUNDAY
North winds 15 to 20 knots, becoming northeast 10 to 15 knots early in the afternoon, then diminishing to 5 to 10 knots late in the afternoon. Seas 6 to 8 feet, occasionally to 10 feet. Wave Detail: Northeast 8 feet at 8 seconds.

SUNDAY NIGHT
East winds 5 to 10 knots, becoming southeast in the late evening and overnight. Seas 3 to 5 feet. Wave Detail: Northeast 4 feet at 7 seconds.

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

MONDAY NIGHT
Southeast winds 10 to 15 knots. Seas 3 to 4 feet. A slight chance of showers after midnight.

TUESDAY
East winds 10 to 15 knots. Seas 3 to 4 feet. A slight chance of showers in the morning, then a chance of showers in the afternoon.

TUESDAY NIGHT
Southeast winds 10 to 15 knots. Seas 4 to 5 feet. A chance of showers.

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GMZ170-175-162115
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
205 AM CST Fri Jan 16 2026

TODAY
South winds 10 to 15 knots. Seas 2 to 4 feet. Wave Detail: South 3 feet at 4 seconds and northeast 2 feet at 6 seconds.

TONIGHT
South winds 10 to 15 knots, becoming southeast after midnight, then becoming northeast 15 to 20 knots early in the morning. Seas 2 to 3 feet. Wave Detail: South 3 feet at 5 seconds and east 1 foot at 5 seconds. A chance of showers after midnight.

SATURDAY
Northeast winds 15 to 20 knots, increasing to 20 to 25 knots in the afternoon. Seas 3 to 5 feet, building to 5 to 7 feet, occasionally to 9 feet in the afternoon. Wave Detail: Northeast 5 feet at 6 seconds and southeast 3 feet at 5 seconds, becoming northeast 7 feet at 7 seconds and south 1 foot at 5 seconds. A chance of showers in the morning, then showers likely in the afternoon.

SATURDAY NIGHT
Northeast winds 20 to 25 knots with gusts up to 30 knots. Seas 6 to 8 feet, occasionally to 10 feet, building to 8 to 10 feet, occasionally to 13 feet after midnight. Wave Detail: Northeast 8 feet at 7 seconds, becoming northeast 9 feet at 8 seconds and north 5 feet at 5 seconds. A chance of showers.

SUNDAY
North winds 20 to 25 knots with gusts up to 30 knots, becoming northeast 10 to 15 knots. Seas 7 to 9 feet, occasionally to 11 feet, subsiding to 5 to 7 feet, occasionally to 9 feet in the afternoon. Wave Detail: North 8 feet at 7 seconds, becoming north 6 feet at 6 seconds.

SUNDAY NIGHT
East winds around 10 knots, becoming southeast in the late evening and overnight. Seas 3 to 5 feet. Wave Detail: Northeast 4 feet at 7 seconds.

MONDAY
Southeast winds 10 to 15 knots. Seas 3 to 4 feet.

MONDAY NIGHT
Southeast winds 10 to 15 knots. Seas 3 to 4 feet.

TUESDAY
East winds around 15 knots. Seas 3 to 5 feet. A slight chance of showers in the morning, then a chance of showers in the afternoon.

TUESDAY NIGHT
Southeast winds around 15 knots. Seas 4 to 5 feet, building to 5 to 7 feet, occasionally to 9 feet after midnight. A chance of showers.