Port Mansfield, TX to the Rio Grande River Marine Forecast
| Today...Northeast Winds 5 To 10 Knots. Seas 3 To 4 Feet. Wave Detail: East 4 Feet At 7 Seconds. A Slight Chance Of Showers Late This Afternoon. |
| Tonight...East Winds Around 10 Knots, Becoming Southeast Early In The Morning. Seas 3 To 4 Feet. Wave Detail: East 4 Feet At 7 Seconds. A Slight Chance Of Showers In The Evening. A Slight Chance Of Showers Early In The Morning. |
| Wednesday...East Winds 5 To 10 Knots. Seas 3 To 4 Feet. Wave Detail: East 3 Feet At 7 Seconds. A Slight Chance Of Showers Early In The Morning, Then A Chance Of Showers In The Afternoon. |
| Wednesday Night...East Winds 5 To 10 Knots. Seas 3 To 4 Feet. Wave Detail: East 4 Feet At 8 Seconds. A Chance Of Showers. A Slight Chance Of Thunderstorms In The Evening. A Slight Chance Of Thunderstorms Early In The Morning. |
| Thursday...Southeast Winds 5 To 10 Knots. Seas 3 To 5 Feet. Wave Detail: East 4 Feet At 10 Seconds. A Chance Of Showers With A Slight Chance Of Thunderstorms. |
| Thursday Night...Southeast Winds Around 10 Knots. Seas 4 To 5 Feet. Wave Detail: East 4 Feet At 9 Seconds. Showers Likely. A Slight Chance Of Thunderstorms In The Evening, Then A Chance Of Thunderstorms After Midnight. |
| Friday...Southeast Winds Around 10 Knots. Seas 4 To 5 Feet. Showers Likely With A Chance Of Thunderstorms Until Late Afternoon, Then A Chance Of Showers With A Slight Chance Of Thunderstorms Late In The Afternoon. |
| Friday Night...Southeast Winds 10 To 15 Knots. Seas 4 To 5 Feet. A Chance Of Showers With A Slight Chance Of Thunderstorms. |
| Saturday...Southeast Winds 10 To 15 Knots. Seas 4 To 5 Feet. A Chance Of Showers. A Slight Chance Of Thunderstorms Early In The Morning. A Slight Chance Of Thunderstorms In The Afternoon. |
| Saturday Night...Southeast Winds Around 15 Knots. Seas 4 To 5 Feet, Building To 5 To 7 Feet, Occasionally To 9 Feet After Midnight. A Chance Of Showers With A Slight Chance Of Thunderstorms Early In The Evening, Then A Slight Chance Of Showers And Thunderstorms In The Late Evening And Early Morning. Winds And Seas Higher In And Near Thunderstorms. |
| Area Forecast Discussion ...UPDATED National Weather Service Brownsville TX 1238am CDT Tuesday April 7 2026 Issued at 1030pm CDT Monday April 6 2026 A nearly Zonal flow aloft with a series of embedded shortwave disturbances are expected to move though Deep South Texas by mid- week. Rain chances (10 to 20 percent) start to increase late Tuesday night near the coast. There is a low to moderate (20 to 40 percent) rain showers Wednesday into Wednesday night. A more potent shortwave swings through the area Thursday into Friday. This will lead to a moderate (40 to 60 percent) chance of rain showers and thunderstorms on Thursday into Friday. Rain chances linger into Saturday with low (20 to 30 percent) chance of showers and thunderstorms. Dry conditions look to return Sunday into Tuesday. Another cool night is expected across the area tonight with overnight lows dropping into the 50s, except the 60s along the beaches. Below normal temperatures will continue on Tuesday with highs reaching the upper 70s to the lower 80s at most locations. Near normal temperatures are expected for Tuesday night with lows falling into the 60s area wide. Temperatures will steadily warm through the rest of the week and into the weekend as the onshore flow continues. There is a high risk of life-threatening rip currents at area beaches overnight with a moderate risk on Tuesday and Tuesday night. Marine Issued at 1030pm CDT Monday April 6 2026 Light to moderate northeast winds and sea heigheights between 3 to 5 feet prevail along the Lower Texas Coast late this evening. Conditions will continue to improve overnight with favorable conditions expected Tuesday through late week. Slightly adverse to adverse conditions will be possible by the weekend as the pressure gradient strengthens. Elevated winds and seas may lead to exercise caution to low-end Small Craft Advisory conditions as early as Friday night on the Gulf waters. There is a low (20 to 30 percent) chance of rain Tuesday night through Wednesday night and a moderate (30 to 60 percent) rain/thunderstorm chance Thursday through Saturday. NOAA Brownsville TX Office: Watches - Warnings - Advisories TX...High Rip Current Risk until 7am CDT this morning for TXZ451-454- 455. GM...None. |
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