Texans. Estimates now project 5. Texas, the AP reported. Houston Mayor Sylvester Turner defended his decision to recommend residents shelter in place, saying it would be impossible to direct the citys 2. If you think the situation right now is bad, and you give an order to evacuate, you are creating a nightmare, Turner said. In mid afterrnoon, the National Weather Services Weather Prediction Center tweeted, The breadth and intensity of this rainfall are beyond anything experienced before. Catastrophic flooding is now underway and expected to continue for days. Additionally, Gizmodo reader Michael Adams sent in photographs of what he said was the intersection of Highway 2. Mac. Gregor Way, located directly next to the Texas Medical Center, a large complex of hospitals and clinical facilities in Houston. Its more or less totally flooded outand the rain is projected to add to the floodwaters in coming days.