National Weather Service Marine Forecast FZUS54 KBRO

FZUS54 KBRO 220647
CWFBRO

Coastal Waters Forecast for the Lower Texas Coast
National Weather Service Brownsville TX
1247 AM CST Thu Jan 22 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.

GMZ100-221930
1247 AM CST Thu Jan 22 2026

SYNOPSIS
Favorable conditions will prevail through Friday. A strong cold front will arrive this weekend and bring Small Craft Advisory conditions along the Lower Texas Coast Saturday night through Monday. Rain chances return Friday night and expected to linger into Monday. Conditions will gradually improve Monday night into Tuesday.

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GMZ130-132-135-221930
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
1247 AM CST Thu Jan 22 2026

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

TONIGHT
East winds 5 to 10 knots, becoming southeast after midnight. Light 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. A moderate chop on the bay. A slight chance of showers in the evening, then a chance of showers with a slight chance of thunderstorms after midnight.

SATURDAY
Southeast winds 10 to 15 knots, increasing to 15 to 20 knots in the afternoon. Choppy on the bay. A chance of showers with a slight chance of thunderstorms.

SATURDAY NIGHT
East winds around 15 knots, becoming north in the late evening and overnight. Choppy on the bay. A slight chance of thunderstorms early in the evening. A chance of showers.

SUNDAY
North winds 15 to 20 knots. Gusts to 30 knots in the afternoon. Choppy on the bay. A chance of showers, mainly in the morning.

SUNDAY NIGHT
North winds 15 to 20 knots. Choppy on the bay. A slight chance of showers in the evening.

MONDAY
North winds 15 to 20 knots, diminishing to 10 to 15 knots in the afternoon. Choppy on the bay, diminishing to a moderate chop in the afternoon.

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

Winds and waves higher in and near thunderstorms.

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GMZ150-155-221930
Gulf waters from Port Mansfield to the Rio Grande out 20 nm
Gulf waters from Baffin Bay to Port Mansfield out 20 nm
1247 AM CST Thu Jan 22 2026

TODAY
North winds around 5 knots, becoming northwest late this morning, then becoming northeast early this afternoon, becoming east late this afternoon. Seas 3 to 4 feet. Wave Detail: East 4 feet at 7 seconds. A slight chance of showers early this morning.

TONIGHT
East winds 5 to 10 knots, becoming southeast after midnight. Seas 3 to 4 feet. Wave Detail: East 3 feet at 8 seconds.

FRIDAY
Southeast winds 5 to 10 knots. Seas 3 to 4 feet. Wave Detail: East 3 feet at 8 seconds. A slight chance of showers in the afternoon.

FRIDAY NIGHT
Southeast winds 10 to 15 knots. Seas 3 to 4 feet. Wave Detail: East 3 feet at 8 seconds. A chance of showers. A slight chance of thunderstorms after midnight.

SATURDAY
South winds 10 to 15 knots. Seas 3 to 5 feet. Wave Detail: Southeast 4 feet at 6 seconds. A chance of showers with a slight chance of thunderstorms.

SATURDAY NIGHT
Southeast winds around 15 knots, becoming north in the late evening and overnight. Seas 6 to 9 feet, occasionally to 11 feet, building to 8 to 11 feet, occasionally to 14 feet after midnight. Wave Detail: East 4 feet at 6 seconds, becoming north 6 feet at 7 seconds. A chance of showers in the evening. A slight chance of thunderstorms until early morning. Showers likely after midnight.

SUNDAY
North winds 20 to 25 knots. Seas 9 to 12 feet, occasionally to 15 feet. A chance of showers, mainly in the morning.

SUNDAY NIGHT
North winds 20 to 25 knots. Seas 8 to 11 feet, occasionally to 14 feet. A slight chance of showers.

MONDAY
North winds 15 to 20 knots, diminishing to 10 to 15 knots late in the afternoon. Seas 7 to 10 feet, occasionally to 13 feet. A slight chance of showers in the morning.

MONDAY NIGHT
Northeast winds 10 to 15 knots. Seas 4 to 6 feet, occasionally to 8 feet.

Winds and seas higher in and near thunderstorms.

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GMZ170-175-221930
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
1247 AM CST Thu Jan 22 2026

TODAY
South winds around 5 knots, becoming southwest early this afternoon, then becoming east late this afternoon. Seas 3 to 5 feet. Wave Detail: East 4 feet at 8 seconds. A slight chance of showers and thunderstorms early this morning, then a slight chance of showers late this morning.

TONIGHT
East winds 5 to 10 knots, becoming southeast after midnight. Seas 3 to 4 feet. Wave Detail: East 3 feet at 8 seconds and south 1 foot at 5 seconds.

FRIDAY
Southeast winds around 10 knots. Seas 3 to 4 feet. Wave Detail: East 3 feet at 8 seconds and south 2 feet at 4 seconds. A slight chance of showers.

FRIDAY NIGHT
Southeast winds 10 to 15 knots. Seas 3 to 4 feet. Wave Detail: Southeast 3 feet at 6 seconds. A chance of showers. A slight chance of thunderstorms in the late evening and overnight.

SATURDAY
South winds around 15 knots. Seas 4 to 5 feet. Wave Detail: Southeast 4 feet at 7 seconds. A chance of showers with a slight chance of thunderstorms.

SATURDAY NIGHT
Southeast winds 15 to 20 knots, becoming northwest after midnight. Seas 6 to 8 feet, occasionally to 10 feet, building to 7 to 10 feet, occasionally to 13 feet after midnight. Wave Detail: East 4 feet at 6 seconds, becoming northwest 6 feet at 6 seconds and east 4 feet at 6 seconds. A chance of showers in the evening. A slight chance of thunderstorms until early morning. Showers likely after midnight.

SUNDAY
North winds 20 to 25 knots. Seas 9 to 12 feet, occasionally to 15 feet. Showers likely, mainly in the morning.

SUNDAY NIGHT
North winds 20 to 25 knots with gusts up to 30 knots. Seas 9 to 11 feet, occasionally to 14 feet. A chance of showers.

MONDAY
North winds 15 to 20 knots. Seas 7 to 10 feet, occasionally to 13 feet, subsiding to 6 to 8 feet, occasionally to 10 feet in the afternoon. A chance of showers, mainly in the morning.

MONDAY NIGHT
Northeast winds 10 to 15 knots, becoming east early in the morning. Seas 5 to 7 feet, occasionally to 9 feet, subsiding to 4 to 5 feet after midnight.

Winds and seas higher in and near thunderstorms.