Port Mansfield, TX to the Rio Grande River Marine Forecast
| Today...Southeast Winds 10 To 15 Knots. Seas 2 To 3 Feet. Wave Detail: East 3 Feet At 6 Seconds. |
| Tonight...Southeast Winds 10 To 15 Knots, Diminishing To 5 To 10 Knots Early In The Morning. Seas 2 To 3 Feet. Wave Detail: Southeast 2 Feet At 6 Seconds. |
| Thursday...Southeast Winds 5 To 10 Knots. Seas 2 To 3 Feet. Wave Detail: East 2 Feet At 6 Seconds. |
| Thursday Night...Southeast Winds Around 10 Knots, Becoming South After Midnight. Seas 2 To 3 Feet. Wave Detail: Southeast 2 Feet At 6 Seconds. |
| Friday...South Winds 5 To 10 Knots, Becoming Southeast Late In The Afternoon. Seas 2 To 3 Feet. Wave Detail: Southeast 2 Feet At 7 Seconds. |
| Friday Night...South Winds 10 To 15 Knots, Becoming Around 10 Knots Early In The Morning. Seas 2 To 3 Feet. Wave Detail: Southeast 2 Feet At 5 Seconds. |
| Saturday...South Winds 10 To 15 Knots, Becoming Southeast Late In The Afternoon. Seas 2 To 3 Feet. |
| Saturday Night...South Winds 10 To 15 Knots. Seas 3 To 4 Feet. |
| Sunday...South Winds 10 To 15 Knots. Seas 3 To 4 Feet. |
| Sunday Night...Southeast Winds 10 To 15 Knots. Seas 2 To 4 Feet. |
| Area Forecast Discussion ...UPDATED National Weather Service Brownsville TX 1235am CDT Wednesday Mar 18 2026 Issued at 1017pm CDT Tuesday Mar 17 2026 Quiet conditions will prevail through the forecast period as high pressure remains in control. A warming trend will continue through the week with 90s returning by Friday. Dry conditions will continue and humidity levels will rebound into midweek. By the end of the week and through the weekend a drier airmass moves back into the region. Humidity levels fall back into the teens across the Rio Grande Plains to the 30s across the inland coastal counties. While current forecast winds will remain just shy of any fire weather criteria the ongoing drought with critical to extremely dry fuels could lead to rapid wildfire growth if ignited. Will continue to monitor for the potential for Fire Weather products. Marine Issued at 1017pm CDT Tuesday Mar 17 2026 Favorable conditions will continue on the waters off the lower Texas coast through the period. Winds though Friday will remain light to moderate with seas of 2 to 3 feet. Over the weekend, the pressure gradient tightens slightly and small craft caution may be needed primarily on the Laguna Madre and nearshore Gulf waters. NOAA Brownsville TX Office: Watches - Warnings - Advisories None. |
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