If he's taking I-80, most of the Wyoming trouble spots are going to be discussed on this part: http://www.wyoroad.info/highway/conditions/Dist1.html

The summit between Cheyenne and Laramie and the area around Elk Mountain are the worst parts. The web cams are helpful. If you or he need anything, shoot me a PM.

"Don't believe everything you see on the Internet" - Abraham Lincoln