FZUS54 KBRO 190712 CWFBRO Coastal Waters Forecast for the Lower Texas Coast National Weather Service Brownsville TX 212 AM CDT Tue May 19 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. GMZ100-192015- 212 AM CDT Tue May 19 2026 .SYNOPSIS...A Small Craft Advisory remains in effect through 7 PM for all lower Texas Coastal Waters, except offshore waters out to 60 nautical miles which expires at 9 AM today. An enhanced pressure gradient will maintain hazardous to adverse marine conditions with moderate to fresh southeasterly winds, moderate seas, and choppy bay conditions through much of the week. Low to medium (30 to 60 percent) rain chances return tonight, lasting through the week. $$ GMZ130-132-135-192015- 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- 212 AM CDT Tue May 19 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING... .TODAY...Southeast winds around 15 knots. A moderate chop on the bay. .TONIGHT...Southeast winds 10 to 15 knots. A moderate chop on the bay. A slight chance of showers and thunderstorms after midnight. .WEDNESDAY...East winds 10 to 15 knots, becoming southeast in the afternoon. A moderate chop on the bay. A slight chance of showers and thunderstorms early in the morning. .WEDNESDAY NIGHT...Southeast winds 10 to 15 knots. A moderate chop on the bay. .THURSDAY...Southeast winds 10 to 15 knots. A moderate chop on the bay. Showers likely in the morning. A chance of thunderstorms. A chance of showers in the afternoon. .THURSDAY NIGHT...Southeast winds 10 to 15 knots, diminishing to 5 to 10 knots early in the morning. A moderate chop on the bay, diminishing to light chop early in the morning. A chance of showers and thunderstorms. .FRIDAY...South winds 5 to 10 knots, becoming southeast 10 to 15 knots in the afternoon. A moderate chop on the bay. A chance of showers and thunderstorms early in the morning, then a slight chance of showers and thunderstorms late in the morning. A chance of showers and thunderstorms in the afternoon. .FRIDAY NIGHT...Southeast winds 10 to 15 knots, becoming south 5 to 10 knots early in the morning. A moderate chop on the bay, diminishing to light chop early in the morning. A chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. .SATURDAY...Southeast winds 5 to 10 knots, increasing to 10 to 15 knots in the afternoon. A moderate chop on the bay. A chance of thunderstorms. Showers likely. .SATURDAY NIGHT...Southeast winds 5 to 10 knots. Light chop on the bay. Showers likely with a chance of thunderstorms. Winds and waves higher in and near thunderstorms. $$ GMZ150-155-192015- Gulf waters from Port Mansfield to the Rio Grande out 20 nm- Gulf waters from Baffin Bay to Port Mansfield out 20 nm- 212 AM CDT Tue May 19 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING... .TODAY...Southeast winds 10 to 15 knots. Seas 5 to 7 feet, occasionally to 9 feet, subsiding to 4 to 5 feet this afternoon. Wave Detail: Southeast 6 feet at 8 seconds, becoming southeast 5 feet at 8 seconds. .TONIGHT...Southeast winds 10 to 15 knots. Seas 4 to 5 feet. Wave Detail: Southeast 5 feet at 7 seconds. A slight chance of showers and thunderstorms early in the morning. .WEDNESDAY...East winds 10 to 15 knots, becoming southeast in the afternoon. Seas 4 to 5 feet. Wave Detail: Southeast 5 feet at 8 seconds. A slight chance of showers and thunderstorms early in the morning. .WEDNESDAY NIGHT...Southeast winds 10 to 15 knots. Seas 4 to 5 feet. Wave Detail: East 4 feet at 7 seconds. .THURSDAY...Southeast winds 10 to 15 knots. Seas 3 to 4 feet. Wave Detail: Southeast 4 feet at 7 seconds. A chance of showers with a slight chance of thunderstorms. .THURSDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to 4 feet. Wave Detail: Southeast 4 feet at 7 seconds. A chance of showers. A slight chance of thunderstorms early in the evening, then a chance of thunderstorms in the late evening and overnight. .FRIDAY...Southeast winds 10 to 15 knots. Seas 3 to 4 feet. A chance of showers and thunderstorms early in the morning, then a slight chance of showers and thunderstorms in the afternoon. .FRIDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to 4 feet. A chance of showers and thunderstorms. .SATURDAY...Southeast winds 10 to 15 knots. Seas 3 to 4 feet. A chance of thunderstorms. Showers likely until late afternoon, then a chance of showers late in the afternoon. .SATURDAY NIGHT...Southeast winds around 10 knots. Seas 3 to 4 feet. A chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. Winds and seas higher in and near thunderstorms. $$ GMZ170-175-192015- 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- 212 AM CDT Tue May 19 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 AM CDT THIS MORNING... .TODAY...Southeast winds 15 to 20 knots, diminishing to 10 to 15 knots this afternoon. Seas 5 to 7 feet, occasionally to 9 feet. Wave Detail: Southeast 6 feet at 8 seconds. A slight chance of showers early this morning. .TONIGHT...Southeast winds around 15 knots. Seas 5 to 7 feet, occasionally to 9 feet. Wave Detail: Southeast 6 feet at 8 seconds. A slight chance of showers and thunderstorms early in the morning. .WEDNESDAY...Southeast winds 10 to 15 knots. Seas 5 to 7 feet, occasionally to 9 feet, subsiding to 4 to 5 feet in the afternoon. Wave Detail: Southeast 6 feet at 8 seconds, becoming southeast 5 feet at 7 seconds. A slight chance of showers late in the morning. .WEDNESDAY NIGHT...Southeast winds 10 to 15 knots. Seas 4 to 5 feet. Wave Detail: Southeast 4 feet at 7 seconds. .THURSDAY...Southeast winds 10 to 15 knots. Seas 4 to 5 feet. Wave Detail: Southeast 4 feet at 7 seconds. A slight chance of thunderstorms. A chance of showers, mainly in the morning. .THURSDAY NIGHT...Southeast winds 10 to 15 knots, becoming south early in the morning. Seas 3 to 5 feet. Wave Detail: Southeast 4 feet at 7 seconds. A slight chance of showers and thunderstorms in the evening, then a chance of showers and thunderstorms after midnight. .FRIDAY...South winds 10 to 15 knots. Seas 3 to 4 feet. A chance of thunderstorms in the morning. A chance of showers. A slight chance of thunderstorms in the afternoon. .FRIDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to 4 feet. A slight chance of showers and thunderstorms in the evening, then a chance of showers and thunderstorms after midnight. .SATURDAY...Southeast winds 10 to 15 knots. Seas 3 to 4 feet. A chance of showers and thunderstorms. .SATURDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to 4 feet. A chance of showers in the evening. A chance of thunderstorms. Showers likely after midnight. Winds and seas higher in and near thunderstorms. $$