KLBJ (AM-Austin) is quoting local emergency folks as saying we should prepare for "tropical storm winds" (that would mean up to 73 MPH). Sunday AM might be a dicey time to be flying. Sunday night might be better. The airport is in a somewhat low-lying part of Austin near the Colorado River so I could see flight delays as a possibility for Saturday night or Sunday morning depending on how fast she blows through.
A lot of the amount of wind we see in Austin will depend on two yet-unkown factors - how easterly Rita moves through Texas and how strong her winds are when she makes landfall. If she's a 200-180 mph major Cat 5, she could still have Cat 1 or Cat 2 winds this far inland. If she's in the 130-140 mph range coming ashore, I'd say TS winds are more likely. Some projections have her moving right up the I-35 corridor (or more precisely up Governor Perry's proposed Trans-Texas Corridor) into the Dallas-Ft. Worth area and up through central Oklahoma.
At the very least couldn't this produce some strong tornados in the Texas Panhandle and Oklahoma?