FINAL ANALYSIS: I waited 24 hours to begin my trip and enjoyed clear sunny skies but lots of wind (15 -21 mph). Fortunately, the wind was roughly behind me the entire time and may have helped reduce fuel consumption and wind noise at times.
When I arrived, I asked the front desk if they had had snow the day before. The gal at the front indicated that they had a pretty good snowfall that started around 1:00 and ended around 3:00 that dropped about 1-1.5 inches of snow on the campground. There was still some snow on the grass when I got there. So the long and short of it is that there was less snowfall than anticipated and it started later than anticipated.
Had I left early in the morning like I had intended to, I would have been a little wet from the rain but fine otherwise. Since the weather called for early snow, I decided to wait. I think it was a good decision to wait it out because the forecast was unfavorable. Had the forecast been 100% accurate, it would have been risky.
I learned a lot from this discussion. Having spent most of my life avoiding cold weather, I don't have the experience many of you do. Frankly, I have never seen a tire chain in real life. One of the scariest experiences I've ever had was driving across an icy bridge in Tennessee when I had to get to the airport. I had to point my car towards the crown on the left and continue driving as I was constantly sliding to the right and in danger of sliding off the bridge. I wouldn't want to repeat that experience, especially in a luxury motorhome.
Thank you to everyone who participated in this discussion.