Floodwaters continue moving downstream through the Highland Lakes system, with dams releasing water and Austin maintaining a waterway ban through Tuesday afternoon. Gov. Abbott warned that communities further downstream, including Carrizo Springs and Cotulla, remain at risk as waters rise. A developing tropical system in the Gulf could bring additional heavy rain to already saturated regions later this week. Officials credited improved warning systems for mitigating worse outcomes compared to last year's floods, while urging the public to stay out of waterways.