FZUS54 KBRO 160735 CWFBRO Coastal Waters Forecast for the Lower Texas Coast National Weather Service Brownsville TX 235 AM CDT Fri Oct 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. GMZ100-162030- 235 AM CDT Fri Oct 16 2026 .SYNOPSIS...The passage of a cold front today will bring adverse marine conditions to the Lower Texas Coast through the weekend. A brief improvement in winds and seas may occur early next week before becoming adverse again. $$ GMZ130-132-135-162030- 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- 235 AM CDT Fri Oct 16 2026 ...GALE WARNING IN EFFECT FROM 10 AM CDT THIS MORNING THROUGH SATURDAY AFTERNOON... .TODAY...North winds 5 to 10 knots, increasing to 25 to 30 knots with gusts up to 40 knots. A light chop on the bay, increasing to very rough bay waters. A chance of showers late this morning. A chance of showers with a slight chance of thunderstorms this afternoon. .TONIGHT...North winds 25 to 30 knots with gusts up to 40 knots. Very rough bay waters. A slight chance of showers early in the evening. .SATURDAY...North winds 20 to 25 knots, increasing to 25 to 30 knots early in the afternoon, then diminishing to 20 to 25 knots late in the afternoon. Rough bay waters, increasing to very rough bay waters early in the afternoon, then diminishing to rough bay waters late in the afternoon. .SATURDAY NIGHT...North winds 15 to 20 knots, diminishing to 10 to 15 knots in the late evening and early morning, then increasing to 15 to 20 knots early in the morning. Choppy bay waters, diminishing to a moderate chop on the bay in the late evening and early morning, then increasing to choppy bay waters early in the morning. .SUNDAY...North winds 15 to 20 knots, diminishing to 10 to 15 knots in the afternoon. Choppy bay waters, diminishing to a moderate chop on the bay in the afternoon. .SUNDAY 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 a light chop on the bay in the late evening and overnight. .MONDAY...Northeast winds 5 to 10 knots. A light chop on the bay. .MONDAY NIGHT...East winds 5 to 10 knots. A light chop on the bay. A slight chance of showers after midnight. .TUESDAY...Northeast winds 5 to 10 knots. A light chop on the bay. A slight chance of thunderstorms. A slight chance of showers in the morning, then a chance of showers in the afternoon. .TUESDAY NIGHT...East winds 5 to 10 knots. A light chop on the bay. A chance of showers with a slight chance of thunderstorms early in the evening, then a slight chance of showers in the late evening and overnight. Winds and waves higher in and near thunderstorms. $$ GMZ150-155-162030- Gulf waters from Port Mansfield to the Rio Grande out 20 nm- Gulf waters from Baffin Bay to Port Mansfield out 20 nm- 235 AM CDT Fri Oct 16 2026 ...GALE WARNING IN EFFECT FROM 10 AM CDT THIS MORNING THROUGH SATURDAY AFTERNOON... .TODAY...North winds 5 to 10 knots, increasing to 25 to 30 knots with gusts up to 40 knots. Seas 2 to 3 feet, building to 6 to 8 feet, occasionally to 10 feet this afternoon. Wave Detail: East 3 feet at 6 seconds and northeast 2 feet at 3 seconds, becoming northeast 8 feet at 6 seconds. A slight chance of showers early this morning. A chance of showers this afternoon. A slight chance of thunderstorms this afternoon. .TONIGHT...North winds around 30 knots with gusts up to 40 knots. Seas 9 to 14feet, occasionally to 18 feet, building to 11 to 15 feet, occasionally to 19 feet after midnight. Wave Detail: Northeast 12 feet at 8 seconds and north 8 feet at 7 seconds, becoming northeast 12 feet at 9 seconds and north 8 feet at 7 seconds. A chance of showers with a slight chance of thunderstorms early in the evening, then a slight chance of showers in the late evening and early morning. .SATURDAY...North winds 25 to 30 knots, diminishing to 20 to 25 knots in the afternoon. Seas 10 to 15 feet, occasionally to 19 feet, subsiding to 9 to 12 feet, occasionally to 15 feet in the afternoon. Wave Detail: Northeast 12 feet at 9 seconds and north 7 feet at 6 seconds, becoming northeast 12 feet at 9 seconds and north 5 feet at 6 seconds. A slight chance of showers late in the morning. .SATURDAY NIGHT...North winds 15 to 20 knots, diminishing to 10 to 15 knots after midnight. Seas 6 to 9 feet, occasionally to 11 feet, subsiding to 5 to 7 feet, occasionally to 9 feet after midnight. Wave Detail: Northeast 8 feet at 8 seconds and north 3 feet at 5 seconds, becoming northeast 6 feet at 8 seconds and north 2 feet at 4 seconds. .SUNDAY...North winds 10 to 15 knots. Seas 5 to 7 feet, occasionally to 9 feet. Wave Detail: Northeast 5 feet at 8 seconds and north 3 feet at 3 seconds. A slight chance of showers in the afternoon. .SUNDAY NIGHT...Northeast winds 10 to 15 knots, diminishing to 5 to 10 knots after midnight. Seas 3 to 5 feet. Wave Detail: Northeast 4 feet at 8 seconds. .MONDAY...Northeast winds around 10 knots. Seas 3 to 4 feet. A slight chance of showers in the afternoon. .MONDAY NIGHT...East winds 10 to 15 knots, diminishing to 5 to 10 knots early in the morning. Seas 4 to 5 feet. A slight chance of showers in the evening, then a chance of showers after midnight. .TUESDAY...East winds around 10 knots. Seas 4 to 5 feet. A chance of showers with a slight chance of thunderstorms. .TUESDAY NIGHT...East winds 10 to 15 knots. Seas 4 to 6 feet, occasionally to 8 feet. A chance of showers with a slight chance of thunderstorms early in the evening, then a slight chance of showers in the late evening and overnight. A slight chance of thunderstorms after midnight. Winds and seas higher in and near thunderstorms. $$ GMZ170-175-162030- 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- 235 AM CDT Fri Oct 16 2026 ...GALE WARNING IN EFFECT FROM 10 AM CDT THIS MORNING THROUGH SATURDAY AFTERNOON... .TODAY...North winds 5 to 10 knots, increasing to 25 to 30 knots. Seas 3 to 4 feet, building to 6 to 9 feet, occasionally to 11 feet this afternoon. Wave Detail: East 3 feet at 6 seconds and northeast 2 feet at 3 seconds, becoming northeast 9 feet at 6 seconds. A chance of showers with a slight chance of thunderstorms this afternoon. Showers likely with a chance of thunderstorms late this afternoon. .TONIGHT...North winds 25 to 30 knots. Seas 9 to 14 feet, occasionally to 18 feet, building to 13 to 15 feet, occasionally to 19 feet after midnight. Wave Detail: North 13 feet at 8 seconds, becoming north 13 feet at 9 seconds. A chance of showers and thunderstorms in the evening. A slight chance of showers after midnight. .SATURDAY...North winds 25 to 30 knots, diminishing to 20 to 25 knots late in the afternoon. Seas 12 to 14 feet, occasionally to 18 feet, subsiding to 9 to 13 feet, occasionally to 17 feet in the afternoon. Wave Detail: Northeast 14 feet at 9 seconds, becoming northeast 12 feet at 9 seconds and north 6 feet at 7 seconds. A slight chance of showers late in the morning. A chance of showers early in the afternoon. .SATURDAY NIGHT...North winds 20 to 25 knots, becoming northeast 15 to 20 knots in the late evening and overnight. Seas 7 to 10 feet, occasionally to 13 feet, subsiding to 5 to 7 feet, occasionally to 9 feet after midnight. Wave Detail: North 8 feet at 7 seconds, becoming north 6 feet at 7 seconds. .SUNDAY...Northeast winds around 15 knots. Seas 5 to 7 feet, occasionally to 9 feet. Wave Detail: Northeast 6 feet at 8 seconds. .SUNDAY NIGHT...Northeast winds 10 to 15 knots. Seas 4 to 5 feet. Wave Detail: Northeast 5 feet at 8 seconds and north 2 feet at 5 seconds. .MONDAY...Northeast winds 10 to 15 knots. Seas 4 to 5 feet. A slight chance of showers in the morning, then a chance of showers in the afternoon. .MONDAY NIGHT...East winds 10 to 15 knots. Seas 5 to 7 feet, occasionally to 9 feet. A chance of showers early in the evening. A slight chance of showers late in the evening, then a chance of showers after midnight. .TUESDAY...East winds 10 to 15 knots. Seas 5 to 7 feet, occasionally to 9 feet. A chance of showers with a slight chance of thunderstorms. .TUESDAY NIGHT...East winds 10 to 15 knots. Seas 5 to 7 feet, occasionally to 9 feet. A chance of showers with a slight chance of thunderstorms early in the evening, then a slight chance of showers in the late evening and overnight. A slight chance of thunderstorms after midnight. Winds and seas higher in and near thunderstorms. $$