Port Mansfield, TX to the Rio Grande River Marine Forecast
| Today...South Winds 20 To 25 Knots. Seas 4 To 7 Feet, Occasionally To 8 Feet. Wave Detail: Southeast 6 Feet At 7 Seconds. |
| Tonight...Southeast Winds 15 To 20 Knots. Seas 4 To 5 Feet. Wave Detail: Southeast 5 Feet At 7 Seconds. |
| Friday...Southeast Winds 15 To 20 Knots. Seas 4 To 5 Feet. Wave Detail: Southeast 5 Feet At 7 Seconds. |
| Friday Night...Southeast Winds Around 15 Knots. Seas 4 To 5 Feet. Wave Detail: Southeast 4 Feet At 7 Seconds. |
| Saturday...Southeast Winds 10 To 15 Knots. Seas 4 To 5 Feet. Wave Detail: Southeast 4 Feet At 7 Seconds. |
| Saturday Night...Southeast Winds Around 15 Knots. Seas 4 To 5 Feet. Wave Detail: Southeast 4 Feet At 7 Seconds. |
| Sunday...Southeast Winds 15 To 20 Knots. Seas 4 To 5 Feet. |
| Sunday Night...Southeast Winds 15 To 20 Knots. Seas 4 To 6 Feet, Occasionally To 8 Feet. |
| Monday...Southeast Winds 15 To 20 Knots. Seas 5 To 7 Feet, Occasionally To 9 Feet. |
| Monday Night...Southeast Winds 15 To 20 Knots. Seas 4 To 6 Feet, Occasionally To 8 Feet. |
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Area Forecast Discussion ...UPDATED National Weather Service Brownsville TX 610am CDT Thu May 15 2025 Long Term (Friday night through Wednesday) Issued at 224am CDT Thu May 15 2025 The main concern in the long term will be the oppressive daytime heat. A 500mb subtropical ridge will continue to bring dry and hot summer-like conditions over Deep South Texas through the period. Near record to record high temperatures will be possible Saturday. The combination of the unseasonable hot temperatures and higher humidity will support heat indices each afternoon, ranging from 100 to 113 degrees across the much of the area. A Heat Advisory will likely be needed for portions of the CWA (County Warning Area) Saturday through the middle of next week. The hot afternoons and warm overnight temperatures will lead to a Heat Risk for Saturday of mainly Moderate (level 2 of 4) to Major (level 3 of 4). However, by late in the weekend into early next week some pockets of Extreme (level 4 of 4) will move into the Northern Ranchlands. An enhance pressure gradient will lead to moderate to breezy south to southeast winds through much of the period. Marine Issued at 224am CDT Thu May 15 2025 Now through Friday...Low pressure in the Plains and a persistent ridge across the eastern Gulf has enhanced the pressure gradient into late this afternoon, continuing elevated southeasterly flow across all coastal waters. Small Craft Advisories continue through the afternoon, with some gradual improvement tonight into Friday. Friday night through Wednesday...Moderate to occasionally strong south to southeast winds will prevail along the Lower Texas coast through the middle of next week. Small Craft Exercise Caution conditions are likely on the Gulf waters and on the Laguna Madre every afternoon. Small Craft Advisories will be possible at times due to slightly stronger winds and higher Gulf seas. Climate Issued at 224am CDT Thu May 15 2025 McAllen broke a 30 year record yesterday and are forecast to break an 80 year record this afternoon. Current forecast highs for Brownsville and Harlingen today would tie records, including a 132 year record for Brownsville. High temperatures on Friday will also approach records across the RGV. Daily record highest low temperatures may also be approached Friday morning. May 15th Record High Temperature / Highest Low Temperature Brownsville: 95 in 1893 / 80 in 2020 Harlingen: 96 in 2003 / 78 in 2020 McAllen: 100 in 1945 / 80 in 1995 May 16th Record High Temperature / Highest Low Temperature Brownsville: 95 in 2024 / 81 in 2024 Harlingen: 97 in 2003 / 78 in 1999 McAllen: 100 in 2003 / 81 in 2024 May 17th Record High Temperature / Highest Low Temperature Brownsville: 96 in 1946 / 80 in 2017 Harlingen: 97 in 2018 / 79 in 1961 McAllen: 102 in 1946 / 81 in 2017 NOAA Brownsville TX Office: Watches - Warnings - Advisories TX...Wind Advisory from 10am this morning to 4pm CDT this afternoon for TXZ255. High Rip Current Risk through this evening for TXZ451-454-455. GM...Small Craft Advisory until 7pm CDT this evening for GMZ130-132- 135-150-155-170-175. |
Brownsville TX Radar
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