How does anyone know when there's a cyclone in Kansas? The wind blew 70 MPH the whole time we were there. Also, there was snow in Kansas, and snow and ice in Colorado. For some reason I can't get it through my head that if Denver is over 5,000 feet up, the mountains around it must be over 7,000 feet. There might, in fact, be snow and ice in late November, especially at night.
We almost turned back an hour from Denver, 10 hours into an 11-hour day. When I decided that one more climb to a higher elevation just wasn't worth the risk, we started down the other side.