Just spoke to my sister in Katy, TX. She and hubby are riding it out...says the roads are too jammed to even try to evac now. They have water, flashlights and canned goods. Says Katy is about 100ft above sea level so they're not too worried about flooding, and the new track will take Rita east of the area, meaning they should be spared the worst part of the storm.
I'm still worried, though.
We'll keep them in our prayers. There are worse places than 100ft above sea level, and 75 miles inland. Expect power outages will occur, some tree damage, possible tornados.