National Weather Service Marine Forecast FZUS54 KBRO

FZUS54 KBRO 041412
CWFBRO

Coastal Waters Forecast for the Lower Texas Coast
National Weather Service Brownsville TX
912 AM CDT Fri Apr 4 2025

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.

GMZ100-050315
912 AM CDT Fri Apr 4 2025

SYNOPSIS
An approaching front expected to arrive overnight Saturday will maintain adverse marine conditions through the weekend into early next week, with rough seas and strong to near gale force winds. Following frontal passage, conditions subside returning to favorable by mid-early next week.

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GMZ130-132-135-050315
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
912 AM CDT Fri Apr 4 2025

SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY MORNING

TODAY
Southeast winds 15 to 20 knots with gusts up to 35 knots. Choppy on the bay.

TONIGHT
Southeast winds 20 to 25 knots, becoming south 15 to 20 knots early in the morning. Gusts to 35 knots. Rough on the bay, diminishing to choppy early in the morning.

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

SATURDAY NIGHT
East winds around 10 knots, becoming north late in the evening, then increasing to 20 to 25 knots with gusts up to 30 knots after midnight. Rough on the bay. A slight chance of showers and thunderstorms in the evening, then a slight chance of showers after midnight.

SUNDAY
Northwest winds 20 to 25 knots with gusts up to 30 knots, diminishing to 15 to 20 knots in the afternoon. Rough on the bay, diminishing to choppy in the afternoon.

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

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

MONDAY NIGHT
Northeast winds 10 to 15 knots, diminishing to 5 to 10 knots in the late evening and overnight. A moderate chop on the bay, diminishing to light chop in the late evening and overnight.

TUESDAY
North winds around 5 knots, becoming east in the afternoon. Smooth on the bay, increasing to light chop in the afternoon.

TUESDAY NIGHT
East winds around 10 knots, becoming southeast after midnight. Light chop on the bay.

Winds and waves higher in and near thunderstorms.

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GMZ150-155-050315
Gulf waters from Port Mansfield to the Rio Grande out 20 nm
Gulf waters from Baffin Bay to Port Mansfield out 20 nm
912 AM CDT Fri Apr 4 2025

SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY MORNING

TODAY
Southeast winds 15 to 20 knots. Gusts to 35 knots this afternoon. Seas 6 to 9 feet, occasionally to 11 feet. Wave Detail: Southeast 8 feet at 9 seconds.

TONIGHT
Southeast winds 20 to 25 knots with gusts up to 30 knots, becoming south 15 to 20 knots with gusts up to 30 knots early in the morning. Seas 7 to 10 feet, occasionally to 13 feet. Wave Detail: Southeast 9 feet at 9 seconds.

SATURDAY
South winds 15 to 20 knots, diminishing to 10 to 15 knots in the afternoon, then becoming southeast late in the afternoon. Seas 6 to 9 feet, occasionally to 11 feet. Wave Detail: Southeast 9 feet at 9 seconds. A slight chance of showers and thunderstorms early in the afternoon. A slight chance of showers late in the afternoon.

SATURDAY NIGHT
East winds around 10 knots, becoming north late in the evening, then increasing to 20 to 25 knots with gusts up to 30 knots after midnight. Seas 6 to 8 feet, occasionally to 10 feet, building to 8 to 11 feet, occasionally to 14 feet after midnight. Wave Detail: East 7 feet at 10 seconds, becoming east 9 feet at 10 seconds and north 5 feet at 5 seconds. A chance of showers in the evening. A slight chance of thunderstorms. A slight chance of showers after midnight.

SUNDAY
Northwest winds 20 to 25 knots with gusts up to 30 knots, becoming north 15 to 20 knots late in the afternoon. Seas 9 to 14 feet, occasionally to 18 feet, subsiding to 9 to 12 feet, occasionally to 15 feet in the afternoon. Wave Detail: Northeast 11 feet at 8 seconds and north 9 feet at 7 seconds, becoming northeast 10 feet at 9 seconds and northwest 8 feet at 6 seconds.

SUNDAY NIGHT
North winds 15 to 20 knots. Seas 6 to 9 feet, occasionally to 11 feet. Wave Detail: North 7 feet at 7 seconds.

MONDAY
North winds 15 to 20 knots, diminishing to 10 to 15 knots late in the afternoon. Seas 5 to 7 feet, occasionally to 9 feet.

MONDAY NIGHT
Northeast winds 10 to 15 knots, diminishing to 5 to 10 knots early in the morning. Seas 2 to 4 feet.

TUESDAY
Northeast winds 5 to 10 knots, becoming east late in the afternoon. Seas 2 to 3 feet.

TUESDAY NIGHT
East winds around 10 knots, becoming southeast after midnight. Seas 2 to 3 feet.

Winds and seas higher in and near thunderstorms.

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GMZ170-175-050315
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
912 AM CDT Fri Apr 4 2025

SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY MORNING

TODAY
Southeast winds 15 to 20 knots, increasing to 20 to 25 knots this afternoon. Gusts to 35 knots. Seas 8 to 11 feet, occasionally to 14 feet. Wave Detail: Southeast 9 feet at 9 seconds.

TONIGHT
Southeast winds 20 to 25 knots, increasing to 25 to 30 knots late in the evening, then diminishing to 20 to 25 knots after midnight. Seas 9 to 12 feet, occasionally to 15 feet. Wave Detail: Southeast 11 feet at 9 seconds.

SATURDAY
South winds 20 to 25 knots with gusts up to 35 knots, diminishing to 10 to 15 knots. Seas 8 to 10 feet, occasionally to 13 feet. Wave Detail: Southeast 10 feet at 9 seconds. A slight chance of showers and thunderstorms early in the afternoon. A slight chance of showers late in the afternoon.

SATURDAY NIGHT
Southeast winds around 10 knots, becoming northeast late in the evening, then becoming north 20 to 25 knots with gusts up to 30 knots after midnight, increasing to 25 to 30 knots early in the morning. Seas 8 to 11 feet, occasionally to 14 feet. Wave Detail: Southeast 9 feet at 10 seconds and north 6 feet at 6 seconds. A chance of showers with a slight chance of thunderstorms.

SUNDAY
North winds 25 to 30 knots, becoming northwest 20 to 25 knots with gusts up to 30 knots in the afternoon. Seas 10 to 15 feet, occasionally to 19 feet. Wave Detail: North 13 feet at 9 seconds and east 10 feet at 9 seconds. A chance of showers early in the morning.

SUNDAY NIGHT
North winds around 20 knots. Seas 7 to 9 feet, occasionally to 11 feet. Wave Detail: North 8 feet at 7 seconds and east 4 feet at 10 seconds.

MONDAY
North winds 15 to 20 knots. Seas 6 to 8 feet, occasionally to 10 feet, subsiding to 4 to 6 feet, occasionally to 8 feet in the afternoon.

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

TUESDAY
Northeast winds 5 to 10 knots. Seas 2 to 3 feet.

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

Winds and seas higher in and near thunderstorms.