Here's a map that shows what flooded during Harvey. That SHOULDN'T happen again since the Army COE lost the lawsuit for letting the reservoir get too high during Harvey so they will be more likely to open the dam up sooner.
https://maps.woolpert.com/harveySounds like you'll be zoned to Patterson Elementary which is the school everyone fights tooth and nail to keep zoned to so its crazy overcrowded. Taylor HS is good. A lot of the area zoned to it has aged out of having school aged kids at home so its not as populated as it once was and it doesnt have as many "Tiger moms" getting their kids tutoring for getting a B in AP English.
Its now an older part of Katy so it doesn't have all the brand new restaurants popping up around it but at the same time its well established and the area has held its value for a long time so you can feel good about moving in and sticking around.