FZUS54 KBRO 151957 CWFBRO Coastal Waters Forecast for the Lower Texas Coast National Weather Service Brownsville TX 257 PM CDT Thu Oct 15 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. GMZ100-160815- 257 PM CDT Thu Oct 15 2026 .SYNOPSIS...A strong cold front arriving on Friday quickly deteriorates seas to very rough as gentle to moderate southeasterly winds become northerly and at gale-force by early Friday evening. Brief rounds of showers and thunderstorms are likely along the front as well. Conditions gradually improve throughout Saturday. $$ GMZ130-132-135-160815- Laguna Madre from the Port of Brownsville to the Arroyo Colorado- Laguna Madre from the Arroyo Colorado To 5 NM north of Port Mansfield TX- Laguna Madre from 5 nm north of Port Mansfield to Baffin Bay TX- 257 PM CDT Thu Oct 15 2026 ...GALE WARNING IN EFFECT FROM FRIDAY MORNING THROUGH SATURDAY AFTERNOON... .REST OF TODAY...Southeast winds around 10 knots. Light chop on the bay. .TONIGHT...East winds 5 to 10 knots, becoming southeast after midnight, then becoming northeast early in the morning. Light chop on the bay, diminishing to smooth after midnight. .FRIDAY...North winds 5 to 10 knots, increasing to 25 to 30 knots with gusts up to 40 knots. Light chop on the bay, increasing to very rough. A chance of showers late in the morning. A chance of showers with a slight chance of thunderstorms in the afternoon. .FRIDAY NIGHT...North winds 25 to 30 knots with gusts up to 40 knots. Very rough on the bay. .SATURDAY...North winds 20 to 25 knots with gusts up to 35 knots. Rough on the bay. .SATURDAY NIGHT...North winds 15 to 20 knots, diminishing to 10 to 15 knots in the late evening and early morning, then increasing to 15 to 20 knots early in the morning. Choppy on the bay, diminishing to a moderate chop in the late evening and early morning, then increasing to choppy early in the morning. .SUNDAY...North winds 15 to 20 knots, diminishing to 10 to 15 knots in the afternoon, then becoming northeast late in the afternoon. Choppy on the bay, diminishing to a moderate chop in the afternoon. .SUNDAY NIGHT...Northeast winds 10 to 15 knots, diminishing to 5 to 10 knots in the late evening and overnight. A moderate chop on the bay, diminishing to light chop in the late evening and overnight. .MONDAY...Northeast winds 5 to 10 knots. Light chop on the bay. .MONDAY NIGHT...Northeast winds 5 to 10 knots. Light chop on the bay. A slight chance of showers. Winds and waves higher in and near thunderstorms. $$ GMZ150-155-160815- Gulf waters from Port Mansfield to the Rio Grande out 20 nm- Gulf waters from Baffin Bay to Port Mansfield out 20 nm- 257 PM CDT Thu Oct 15 2026 ...GALE WARNING IN EFFECT FROM FRIDAY MORNING THROUGH SATURDAY AFTERNOON... .REST OF TODAY...Southeast winds 5 to 10 knots. Seas 3 to 4 feet. Wave Detail: Southeast 3 feet at 6 seconds. .TONIGHT...East winds 5 to 10 knots, diminishing to around 5 knots early in the morning. Seas 2 to 4 feet. Wave Detail: East 3 feet at 6 seconds. .FRIDAY...North winds 5 to 10 knots, increasing to 25 to 30 knots. Seas 2 to 4 feet, building to 5 to 7 feet, occasionally to 9 feet in the afternoon. Wave Detail: East 3 feet at 6 seconds and northeast 2 feet at 3 seconds, becoming northeast 7 feet at 7 seconds and north 4 feet at 4 seconds. A slight chance of showers early in the morning. A chance of showers in the afternoon. A slight chance of thunderstorms in the afternoon. .FRIDAY NIGHT...North winds 25 to 30 knots with gusts up to 40 knots. Seas 9 to 12 feet, occasionally to 15 feet, building to 10 to 15 feet, occasionallyto 19 feet after midnight. Wave Detail: Northeast 11 feet at 8 seconds, becoming northeast 12 feet at 9 seconds and north 9 feet at 7 seconds. A slight chance of showers and thunderstorms early in the evening. .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 8 feet at 6 seconds, becoming northeast 12 feet at 9 seconds and north 5 feet at 6 seconds. .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 5 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. .SUNDAY NIGHT...Northeast winds 10 to 15 knots, diminishing to 5 to 10 knots after midnight. Seas 3 to 5 feet. .MONDAY...Northeast winds around 10 knots. Seas 3 to 4 feet. A slight chance of showers in the afternoon. .MONDAY NIGHT...Northeast winds around 10 knots. Seas 4 to 5 feet. A slight chance of showers in the evening, then a chance of showers after midnight. Winds and seas higher in and near thunderstorms. $$ GMZ170-175-160815- 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- 257 PM CDT Thu Oct 15 2026 ...GALE WARNING IN EFFECT FROM FRIDAY MORNING THROUGH SATURDAY AFTERNOON... .REST OF TODAY...Southeast winds 5 to 10 knots. Seas 3 to 4 feet. Wave Detail: Southeast 3 feet at 6 seconds. .TONIGHT...East winds 5 to 10 knots, becoming around 5 knots early in the morning. Seas 3 to 4 feet. Wave Detail: East 3 feet at 6 seconds. .FRIDAY...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 in the afternoon. Wave Detail: Northeast 3 feet at 5 seconds, becoming northeast 9 feet at 5 seconds. A slight chance of showers early in the morning, then a chance of showers with a slight chance of thunderstorms in the afternoon. Showers likely with a chance of thunderstorms late in the afternoon. .FRIDAY NIGHT...North winds around 30 knots. Seas 9 to 13 feet, occasionally to 17 feet, building to 12 to 14 feet, occasionally to 18 feet after midnight. Wave Detail: North 12 feet at 8 seconds, becoming north 14 feet at 9 seconds. A chance of showers and thunderstorms early in the evening, then a chance of showers with a slight chance of thunderstorms late in the evening. .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 7 feet at 5 seconds. A slight chance of showers late in the morning. .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. .SUNDAY NIGHT...Northeast winds 10 to 15 knots. Seas 4 to 5 feet. .MONDAY...Northeast winds 10 to 15 knots. Seas 4 to 5 feet. A slight chance of showers. .MONDAY NIGHT...Northeast winds 10 to 15 knots. Seas 5 to 7 feet, occasionally to 9 feet. A slight chance of showers in the evening, then a chance of showers after midnight.Winds and seas higher in and near thunderstorms. $$