I traveled to Houston a couple times, helped install a pipe organ at Tallowood Baptist Church, a mega-church there. HUGE city. I'm sure some areas are fine, others in low lying areas probably ruined. The city is so large, it's hard for even me to comprehend what parts of town are getting the worst vs. just fine. A family I used to live by just moved there, we still keep in touch and they're doing well-- putting up with huge amounts of rain, but no flooding where they're at.