Port Mansfield, TX to the Rio Grande River 20 - 60 NM Marine Forecast
| Today...Southeast Winds 20 To 25 Knots With Gusts Up To 35 Knots, Diminishing To 10 To 15 Knots. Seas 7 To 9 Feet, Occasionally To 11 Feet, Subsiding To 5 To 7 Feet, Occasionally To 9 Feet This Afternoon. Wave Detail: Southeast 7 Feet At 8 Seconds, Becoming Southeast 6 Feet At 8 Seconds. A Chance Of Showers And Thunderstorms This Morning, Then Showers And Thunderstorms Likely This Afternoon. |
| Tonight...Southeast Winds 10 To 15 Knots, Becoming South After Midnight. Seas 5 To 7 Feet, Occasionally To 9 Feet. Wave Detail: Southeast 6 Feet At 8 Seconds. A Chance Of Showers And Thunderstorms Early In The Evening, Then A Slight Chance Of Showers And Thunderstorms Late In The Evening. |
| Saturday...South Winds 10 To 15 Knots. Seas 5 To 6 Feet, Occasionally To 8 Feet. Wave Detail: East 6 Feet At 7 Seconds. |
| Saturday Night...Southeast Winds 10 To 15 Knots. Seas 5 To 6 Feet, Occasionally To 8 Feet. Wave Detail: Southeast 6 Feet At 9 Seconds And North 1 Foot At 6 Seconds. |
| Sunday...South Winds 10 To 15 Knots. Seas 4 To 6 Feet, Occasionally To 7 Feet. Wave Detail: Southeast 6 Feet At 8 Seconds. |
| Sunday Night...South Winds Around 10 Knots. Seas 4 To 5 Feet. Wave Detail: Southeast 5 Feet At 8 Seconds. |
| Monday...South Winds 5 To 10 Knots, Becoming East In The Afternoon. Seas 3 To 4 Feet. |
| Monday Night...East Winds 5 To 10 Knots. Seas 3 To 4 Feet. |
| Tuesday...East Winds 10 To 15 Knots, Becoming Southeast In The Afternoon. Seas 3 To 4 Feet. |
| Tuesday Night...Southeast Winds 15 To 20 Knots. Seas 3 To 5 Feet. Winds And Seas Higher In And Near Thunderstorms. |
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Area Forecast Discussion National Weather Service Brownsville TX 634am CDT Fri Mar 28 2025 Long Term (Saturday night through Thursday) Issued at 220am CDT Fri Mar 28 2025 Warmer and drier air is expected throughout next week, as zonal flow develops and persists over the area. Little to no rain is expected throughout Deep South Texas between Sunday and Thursday. High temperatures are expected to range between the lower and upper 90s throughout the week, and low temperatures are expected to get down to the upper 60s/lower 70s. Some areas could see heat indices over 100 degrees, particularly on Sunday and Wednesday. Skies are expected to be clear to partly cloudy throughout the week with some increased cloud cover on Tuesday. Winds will largely be out of the south-southeast with a brief wind shift to the east for Monday, turning back to the southeast by Tuesday evening. Marine Issued at 220am CDT Fri Mar 28 2025 Today through Saturday...Moderate to strong pressure gradient between high pressure over the Gulf and lower pressure over NE Mexico and West Texas. A large fetch of east to southeast winds is driving high seas over the western Gulf impacting the lower Texas coast. Small Craft Advisories continue for all waters until 1pm with a possible extension for the Gulf waters if seas do not subside. Wind and seas begin to lower later this afternoon with better conditions tonight and Saturday as the pressure gradient weakens. Still a moderate wind and sea regime may allow for exercise caution for all or portions of the lower Texas coastal waters. Saturday Night through Thursday...Elevated seas are expected Sunday, with potential for Small Craft Exercise Caution on the Gulf Waters. By Monday, conditions are expected to improve before seas pick up again on Wednesday. These elevated seas are expected to continue through Thursday and Small Craft Exercise Caution or Small Craft Advisories may be needed. Winds will be mostly southeasterly throughout the forecast period, except for Monday, when winds will temporarily take on a more easterly component. NOAA Brownsville TX Office: Watches - Warnings - Advisories TX...Flood Watch until noon CDT today for TXZ248>255-351-353>355-451- 454-455. High Rip Current Risk through this evening for TXZ451-454-455. GM...Small Craft Advisory until 1pm CDT this afternoon for GMZ130- 132-135-150-155-170-175. |
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