# South Texas rain broke records Sunday, with more heavy rain Monday morning Published November 9, 2026, 6:32 AM ET ยท Updated November 9, 2026, 6:47 AM ET By Ryan Hall, Y'all Written by our automated news desk from National Weather Service data. Sunday's rain set daily records in Brownsville, Corpus Christi, McAllen and Del Rio. Brownsville is also having its wettest start to November since records began in 1878. Heavy rain continues this morning on soaked ground, so flash flooding is possible until the rain eases by late afternoon. **What's new:** Added our new graphic of South Texas rain records. ## Key points - **Where:** South Texas, centered between Corpus Christi and Brownsville, with Kingsville and the Rio Grande Valley in the mix. Del Rio also set a record Sunday. - **When:** Rain continues through Monday morning Central time, then gradually eases by late afternoon. - **What:** Flash flooding is possible today, a Level 2 of 4 (Slight) risk. In the heaviest bands, rain could top 1 inch in an hour, and 2 inches in an hour is possible near the lower Texas coast. - **What it means:** Areas soaked by Sunday's rain are more vulnerable to flooding this morning. ![Newsroom graphic (graphic by the Ryan Hall, Y'all newsroom)](https://public.yallsoft.app/rhy/blog/images/2026-11-09-news-newsroom-57811138-0-1141.png) *Updated 6:45 AM ET Monday.* Heavy rain is still falling across South Texas this morning, from the Corpus Christi area south toward Brownsville and the Rio Grande Valley. Sunday's downpours already broke daily records in four cities, and Brownsville has now had its wettest first eight days of November since records began in 1878. ## Sunday's records Brownsville picked up 3.65 inches on Sunday. That beat the old November 8 record of 2.74 inches, set in 1930. Corpus Christi did even better, with 3.24 inches against an old record of 1.47 from 1987. That is more than double. McAllen got 1.84 inches, well past the 0.84 inches from 2016. Farther northwest, Del Rio recorded 2.34 inches, beating a 1965 record of 1.03 inches. None of the four cities broke its wettest November day record. Brownsville's November daily record is 4.08 inches, Corpus Christi's is 4.55 inches, Del Rio's is 2.62 inches, and McAllen's is 4.08 inches. Sunday was a record for the date, not the wettest November day. ## Brownsville's month is already historic Brownsville has had 5.80 inches of rain since November 1. A normal month-to-date total is 0.61 inches. That makes it the wettest November 1 through 8 on record, ahead of 4.30 inches in 1905 and 4.10 inches in 2002. It is also already the fourth wettest full November on record there, and 22 days remain. The top three are 7.69 inches in 1986, 6.26 inches in 1957 and 5.95 inches in 1930. Corpus Christi has had 4.43 inches this month against a normal 0.66 inches so far. That is the third wettest start to November on record there. Del Rio is at 2.59 inches, where about 0.30 inches is normal by now. ## Monday morning's flood risk The same setup that dumped Sunday's rain is still in place. A line of converging winds sits across South Texas, and storms keep rolling up out of Mexico along it. Those storms move slowly, so they can sit over one area for hours. Some spots saw 4 to 9 inches in the past day. Near Kingsville, southwest of Corpus Christi, local totals reached 5 to 10 inches. Those places are the most vulnerable to flooding this morning, from the southwest side of Corpus Christi to about 50 miles east of Laredo. There is a flood advisory for southeastern Kinney County in south-central Texas until 8 AM Central. The heavy rain threat should ease by late afternoon as the pattern moves on. No flash flood risk is outlined for Tuesday or Wednesday. ## What to do - Don't drive through water over a road. - Give yourself extra time for the Monday morning commute, especially on roads around Corpus Christi, Kingsville and Brownsville. - Check low spots and storm drains near your home if you can do it safely. Move vehicles out of flood-prone areas. - Watch [every active warning, live](/warnings) and the [flash flood outlook](/excessive-rainfall) for updates. You can also sign up for [free Y'all Alerts](/alerts). ## Bottom line South Texas is still dealing with heavy rain this morning on ground that is already soaked, so flash flooding is possible as the rain gradually eases by late afternoon. No flash flood risk is outlined for Tuesday or Wednesday. More on: [South Texas flooding, November 2026](https://ryanhallyall.com/news/topic/south-texas-flooding-november-2026) Places in this story: Newport Beach, CA; Brownsville, TX; Corpus Christi, TX; McAllen, TX; San Antonio, TX ## Sources - NWS Brownsville Record Event Report, National Weather Service - [NOAA Regional Climate Centers ACIS, Brownsville threaded record (BROthr), 147 years with complete Nov 1-8 data](https://www.rcc-acis.org/), NOAA Regional Climate Centers (ACIS) - NWS Corpus Christi Record Event Report (12:47 AM CST Nov 9) and climate report (CLI) for Nov 8, National Weather Service - NWS Great Falls Record Event Report, National Weather Service - NWS San Diego Record Event Report, National Weather Service - NWS Brownsville climate report (CLI) for Nov 8 (issued 1:29 AM CST Nov 9, 2026), National Weather Service - NWS Austin/San Antonio Record Event Report (1:50 AM CST Nov 9) and Del Rio climate report (CLI) for Nov 8 (1:50 AM CST Nov 9, 2026), National Weather Service - WPC Mesoscale Precipitation Discussion 1563 (2:59 AM EST Nov 9, 2026), NOAA Weather Prediction Center --- Canonical: https://ryanhallyall.com/news/south-texas-rain-broke-records-sunday-with-more-heavy-rain-monday-morning From Ryan Hall, Y'all (https://ryanhallyall.com). Always follow official warnings from the National Weather Service.