


Coastal Waters Forecast
Issued by NWS Brownsville, TX
Issued by NWS Brownsville, TX
322 FZUS54 KBRO 081734 CWFBRO Coastal Waters Forecast for the Lower Texas Coast National Weather Service Brownsville TX 1234 PM CDT Tue Jul 8 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. GMZ100-090615- 1234 PM CDT Tue Jul 8 2025 .SYNOPSIS...Gentle to moderate south-southeasterly flow and relatively low seas will prevail throughout the week. A westward moving trough in the Gulf approaching the Texas coast early this week will maintain low to medium (20-40%) chances of isolated to scattered showers and thunderstorms each day before decreasing to low (less than 10%) by Wednesday night. Small Craft Exercise Caution conditions are possible later in the week as some of the winds pick up on the bay and in the Gulf waters. $$ GMZ130-132-135-090615- Laguna Madre from the Port of Brownsville to the Arroyo Colorado- Laguna Madre from the Arroyo Colorado To 5 NM north of Port Mansfield TX- Laguna Madre from 5 nm north of Port Mansfield to Baffin Bay TX- 1234 PM CDT Tue Jul 8 2025 .TONIGHT...Southeast winds 10 to 15 knots, becoming south 5 to 10 knots early this morning. A moderate chop on the bay, diminishing to light chop early this morning. .WEDNESDAY...South winds 5 to 10 knots, becoming southeast 10 to 15 knots in the afternoon. A moderate chop on the bay. Hazy. A slight chance of showers and thunderstorms in the afternoon. A chance of showers and thunderstorms late in the afternoon. .WEDNESDAY NIGHT...Southeast winds 10 to 15 knots. A moderate chop on the bay. A slight chance of showers and thunderstorms early in the evening. Hazy. .THURSDAY...Southeast winds 10 to 15 knots. A moderate chop on the bay. Hazy. .THURSDAY NIGHT...Southeast winds 10 to 15 knots. A moderate chop on the bay. Hazy. .FRIDAY...Southeast winds 10 to 15 knots, increasing to 15 to 20 knots in the afternoon. Choppy on the bay. Hazy in the morning. .FRIDAY NIGHT...Southeast winds 15 to 20 knots, diminishing to 10 to 15 knots in the late evening and overnight. Choppy on the bay, diminishing to a moderate chop in the late evening and overnight. .SATURDAY...Southeast winds 10 to 15 knots. A moderate chop on the bay. A slight chance of showers and thunderstorms. .SATURDAY NIGHT...Southeast winds 10 to 15 knots. A moderate chop on the bay. A slight chance of thunderstorms early in the evening. A slight chance of showers. .SUNDAY...Southeast winds 10 to 15 knots. A moderate chop on the bay. A slight chance of thunderstorms. A chance of showers until late afternoon, then a slight chance of showers late in the afternoon. .SUNDAY NIGHT...Southeast winds 10 to 15 knots. A moderate chop on the bay. A slight chance of showers and thunderstorms early in the evening. Winds and waves higher in and near thunderstorms. $$ GMZ150-155-090615- Gulf waters from Port Mansfield to the Rio Grande out 20 nm- Gulf waters from Baffin Bay to Port Mansfield out 20 nm- 1234 PM CDT Tue Jul 8 2025 .TONIGHT...Southeast winds 10 to 15 knots, becoming south early this morning. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at 6 seconds. .WEDNESDAY...South winds around 10 knots. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at 6 seconds. A slight chance of showers and thunderstorms. Hazy. .WEDNESDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 6 seconds. Hazy. .THURSDAY...South winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 6 seconds. Hazy. .THURSDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to 4 feet. Wave Detail: Southeast 3 feet at 6 seconds. Hazy. .FRIDAY...Southeast winds around 15 knots. Seas 3 to 4 feet. Wave Detail: Southeast 3 feet at 5 seconds. Hazy in the morning. .FRIDAY NIGHT...Southeast winds around 15 knots. Seas 3 to 4 feet. A slight chance of showers after midnight. .SATURDAY...Southeast winds 10 to 15 knots. Seas 3 to 4 feet. A slight chance of showers and thunderstorms. .SATURDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to 4 feet. A slight chance of thunderstorms early in the evening. A slight chance of showers in the evening, then a chance of showers after midnight. .SUNDAY...Southeast winds 10 to 15 knots. Seas 3 to 4 feet. A chance of showers with a slight chance of thunderstorms until late afternoon, then a slight chance of showers late in the afternoon. .SUNDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to 4 feet. A slight chance of showers early in the evening. A slight chance of showers after midnight. Winds and seas higher in and near thunderstorms. $$ GMZ170-175-090615- 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- 1234 PM CDT Tue Jul 8 2025 .TONIGHT...Southeast winds around 10 knots, becoming south early this morning. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at 6 seconds. A slight chance of showers early this evening. .WEDNESDAY...South winds around 10 knots. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at 6 seconds. A slight chance of thunderstorms. A chance of showers early in the morning, then a slight chance of showers in the afternoon. Hazy. .WEDNESDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 6 seconds. Hazy. .THURSDAY...South winds around 10 knots. Seas 3 to 4 feet. Wave Detail: Southeast 3 feet at 6 seconds. Hazy. .THURSDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to 4 feet. Wave Detail: Southeast 3 feet at 6 seconds. Hazy. .FRIDAY...South winds around 15 knots. Seas 3 to 4 feet. Wave Detail: Southeast 3 feet at 6 seconds. Hazy in the morning. .FRIDAY NIGHT...Southeast winds around 15 knots. Seas 3 to 4 feet. A slight chance of showers and thunderstorms after midnight. .SATURDAY...Southeast winds 10 to 15 knots. Seas 3 to 4 feet. A chance of showers with a slight chance of thunderstorms. .SATURDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to 4 feet. A slight chance of thunderstorms early in the evening. A slight chance of showers in the evening, then a chance of showers after midnight. .SUNDAY...Southeast winds 10 to 15 knots. Seas 3 to 4 feet. A chance of showers with a slight chance of thunderstorms until late afternoon, then a slight chance of showers late in the afternoon. .SUNDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to 4 feet. A slight chance of showers early in the evening. A slight chance of showers after midnight. A slight chance of thunderstorms early in the morning. Winds and seas higher in and near thunderstorms. $$