


Coastal Waters Forecast
Issued by NWS Brownsville, TX
Issued by NWS Brownsville, TX
484 FZUS54 KBRO 150514 CWFBRO Coastal Waters Forecast for the Lower Texas Coast National Weather Service Brownsville TX 1214 AM CDT Wed Oct 15 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. GMZ100-151815- 1214 AM CDT Wed Oct 15 2025 .SYNOPSIS...Generally favorable conditions are expected through the forecast period. Light to moderate onshore winds, moderate to slight seas, and generally rain-free conditions should prevail through the weekend. $$ GMZ130-132-135-151815- Laguna Madre from the Port of Brownsville to the Arroyo Colorado- Laguna Madre from the Arroyo Colorado To 5 NM north of Port Mansfield TX- Laguna Madre from 5 nm north of Port Mansfield to Baffin Bay TX- 1214 AM CDT Wed Oct 15 2025 .TODAY...East winds 5 to 10 knots. Light chop on the bay. .TONIGHT...East winds 5 to 10 knots, becoming southeast after midnight. Light chop on the bay. .THURSDAY...South winds around 5 knots, becoming southeast in the afternoon. Smooth on the bay, increasing to light chop in the afternoon. .THURSDAY NIGHT...Southeast winds 5 to 10 knots. Light chop on the bay. .FRIDAY...South winds 5 to 10 knots, becoming southeast in the afternoon. Light chop on the bay. .FRIDAY NIGHT...Southeast winds 5 to 10 knots. Light chop on the bay. .SATURDAY...South winds 5 to 10 knots. Light chop on the bay. .SATURDAY NIGHT...Southeast winds 5 to 10 knots, becoming south after midnight. Light chop on the bay. .SUNDAY...West winds 5 to 10 knots, becoming northeast in the afternoon. Light chop on the bay. .SUNDAY NIGHT...East winds 5 to 10 knots. Light chop on the bay. $$ GMZ150-155-151815- Gulf waters from Port Mansfield to the Rio Grande out 20 nm- Gulf waters from Baffin Bay to Port Mansfield out 20 nm- 1214 AM CDT Wed Oct 15 2025 .TODAY...East winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: East 2 feet at 5 seconds. .TONIGHT...East winds 5 to 10 knots, becoming southeast after midnight. Seas 2 to 3 feet. Wave Detail: East 2 feet at 5 seconds. .THURSDAY...Southeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: East 2 feet at 5 seconds. .THURSDAY NIGHT...Southeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at 5 seconds. .FRIDAY...Southeast winds 5 to 10 knots. Seas 2 to 4 feet. Wave Detail: East 4 feet at 7 seconds and southeast 2 feet at 4 seconds. .FRIDAY NIGHT...Southeast winds 5 to 10 knots, becoming south 10 to 15 knots after midnight. Seas 3 to 4 feet. Wave Detail: East 4 feet at 7 seconds. .SATURDAY...South winds 5 to 10 knots. Seas 3 to 4 feet. .SATURDAY NIGHT...Southeast winds 5 to 10 knots, becoming south after midnight. Seas 2 to 4 feet. .SUNDAY...West winds 5 to 10 knots, becoming northeast in the afternoon. Seas 2 to 3 feet. .SUNDAY NIGHT...East winds around 10 knots. Seas 2 to 4 feet. $$ GMZ170-175-151815- Gulf waters from Port Mansfield to the Rio Grande extending from 20 to 60 nm- Gulf waters from Baffin Bay to Port Mansfield extending from 20 to 60 nm- 1214 AM CDT Wed Oct 15 2025 .TODAY...Northeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: East 2 feet at 5 seconds. .TONIGHT...East winds 5 to 10 knots, becoming southeast after midnight. Seas 2 to 3 feet. Wave Detail: East 2 feet at 5 seconds. .THURSDAY...Southeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: East 2 feet at 5 seconds. .THURSDAY NIGHT...Southeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at 5 seconds. A slight chance of showers. A slight chance of thunderstorms in the late evening and overnight. .FRIDAY...Southeast winds 5 to 10 knots. Seas 2 to 4 feet. Wave Detail: East 4 feet at 7 seconds. A slight chance of showers and thunderstorms. .FRIDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to 4 feet. Wave Detail: East 4 feet at 7 seconds. A slight chance of showers and thunderstorms early in the evening, then a slight chance of showers late in the evening. .SATURDAY...South winds 5 to 10 knots. Seas 3 to 4 feet. .SATURDAY NIGHT...South winds 5 to 10 knots. Seas 3 to 4 feet. .SUNDAY...West winds 5 to 10 knots, becoming northeast in the afternoon. Seas 3 to 4 feet. A slight chance of showers and thunderstorms until late afternoon. .SUNDAY NIGHT...East winds around 10 knots. Seas 3 to 4 feet. Winds and seas higher in and near thunderstorms. $$