There is a weak trough passing through northern Utah tonight. I don't think it will crack the inversion, but perhaps it will stir it up a bit. Relief on the benches is possible, but getting things scoured out on the valley floor might be tough. That being said, inversion mixout is tough to forecast and if we break it up more than I think, I'm certainly not going to be unhappy.
For your viewing pleasure, one of my colleagues in Atmospheric Sciences, Steve Krueger, sent me the movie below showing some marvelous internal waves and other small scale phenomenon yesterday morning. The movie is based on images from George Wilkerson's web cam (www.ocwx.com). You'll need Quicktime to view it.