We live in Missouri City so we are right there with you.
The first thing to do is clear the area around the pool of anything that could get blown in. Of course you are going to have limbs, etc but unless you let them sit in your pool for a long time, you should not have too much trouble.
I have not done anything out of the ordinary. After the strom blows through, I'll net out anything large and let the cleaner run for as long as it takes to clean the bottom, and of course, empty the skimmer often. If you don't allow the organics to sit in your pool AND you already have enough FC, you should be fine. If it makes you feel better, throw in a couple bottles of bleach (especially if you are evacuating) and then you can balance after things settle. The priority should be protecting your family. If your pool gets a little green it's only a minor inconvenience.