Port Mansfield, TX to the Rio Grande River Marine Forecast
| Rest Of Tonight...Southeast Winds Around 10 Knots, Becoming 5 To 10 Knots Early This Morning. Seas 1 To 2 Feet. Wave Detail: East 1 Foot At 5 Seconds. |
| Sunday...Southeast Winds 5 To 10 Knots, Becoming East Late In The Afternoon. Seas 1 To 2 Feet. Wave Detail: Southeast 1 Foot At 5 Seconds. A Slight Chance Of Showers And Thunderstorms Late In The Morning. A Chance Of Showers And Thunderstorms Early In The Afternoon, Then A Slight Chance Of Showers And Thunderstorms Late In The Afternoon. |
| Sunday Night...Southeast Winds 5 To 10 Knots, Becoming South Early In The Morning. Seas 1 To 2 Feet. Wave Detail: East 1 Foot At 4 Seconds. A Slight Chance Of Thunderstorms. A Slight Chance Of Showers Until Early Morning, Then A Chance Of Showers Early In The Morning. |
| Monday...Southeast Winds Around 5 Knots, Becoming East In The Afternoon. Seas 1 To 2 Feet. Wave Detail: Southeast 1 Foot At 4 Seconds. A Slight Chance Of Thunderstorms. A Chance Of Showers Until Late Afternoon, Then A Slight Chance Of Showers Late In The Afternoon. |
| Monday Night...Southeast Winds Around 10 Knots, Becoming 5 To 10 Knots After Midnight. Seas 2 To 3 Feet. Wave Detail: Southeast 2 Feet At 5 Seconds. A Slight Chance Of Showers And Thunderstorms Early In The Evening. A Slight Chance Of Showers After Midnight. A Slight Chance Of Thunderstorms Early In The Morning. |
| Tuesday...Southeast Winds 5 To 10 Knots, Becoming East Late In The Afternoon. 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 Afternoon. |
| Tuesday Night...Southeast Winds Around 10 Knots. Seas 2 To 3 Feet. A Slight Chance Of Showers And Thunderstorms Early In The Evening. |
| Wednesday...Southeast Winds 10 To 15 Knots. Seas 2 To 3 Feet. A Slight Chance Of Showers And Thunderstorms Until Late Afternoon. |
| Wednesday Night...Southeast Winds 10 To 15 Knots. Seas 2 To 3 Feet. A Slight Chance Of Showers And Thunderstorms After Midnight. |
| Thursday...Southeast Winds 10 To 15 Knots. Seas 2 To 3 Feet. A Slight Chance Of Showers And Thunderstorms. |
| Thursday Night...Southeast Winds 10 To 15 Knots, Becoming Around 10 Knots Early In The Morning. Seas 2 To 4 Feet. A Slight Chance Of Showers And Thunderstorms Early In The Evening. A Slight Chance Of Showers And Thunderstorms After Midnight. Winds And Seas Higher In And Near Thunderstorms. |
| Area Forecast Discussion ...UPDATED National Weather Service Brownsville TX 543pm CDT Sat September 14 2024 Long Term (Monday through next Saturday) Issued at 218pm CDT Sat September 14 2024 Rain chances trend downward but do not go away completely through the long-term. 250-500mb ridge builds and becomes anchored over Texas as large scale mid-upper level troughs set up over the western and eastern portions of the country. A few perturbations in the southwest flow aloft and remnant moisture from Pacific Tropical Storm Ileana should be sufficient to squeeze out a few showers or thunderstorms Monday. Beyond Monday, surface southeast flow maintains seasonal moisture levels providing a slight chance of daily sea breeze showers or isolated thunderstorms. Probability coverage will only be in the 10-20 percent range at best and with the ridge building and more subsidence than lift the sea breeze will have a tough time organizing which will limit convection beyond the coastal counties Wednesday-Friday. Seasonal to slightly above normal temperatures continue to supported by model output with heat indices on the high end but just below heat advisory criteria at this time. Maximums to reach upper 80s at the beach, 90s inland to near 100 for the Rio Grande Plains with 70s to near 80 at the coast should suffice for low temperatures. Marine Issued at 218pm CDT Sat September 14 2024 Tonight through tomorrow night...Ideal marine conditions are anticipated with light to gentle southeasterly winds and low seas. Isolated showers and thunderstorms are possible Sunday morning becoming scattered in the afternoon, lasting into the evening hours followed by a slight chance of showers and thunderstorms. Lightning and enhanced winds and seas are possible within thunderstorms. Monday - Friday Gentle to light onshore breezes coupled with low seas are expected to persist along the lower Texas coastal waters Monday and Tuesday. Surface pressure gradient remains relaxed with mid-level high pressure build over Texas and surface ridge remaining weak across the Gulf of Mexico. As heat builds inland through the week a moderate onshore flow develops Wednesday-Friday each afternoon impacting mainly the Laguna Madre. Probability for Exercise Caution statement remains below 20 percent Monday and Tuesday, with increasing chances over 50 percent mid to late in the week. Small Craft Advisories probability remains below 10 percent. NOAA Brownsville TX Office: Watches - Warnings - Advisories None. |
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