[bbradley406]

Obviously this depends on the region and weather, but in my experience the best areas on the mountain are tracked out and bumpy by the afternoon. Once the sun really starts hitting the snow it can get lumpier and tougher compared to fresh stuff, and more frequent / larger ice patches appear on hard-packed runs.

If you have a season pass it doesn't make sense to ski the worse conditions, since you can just go back another morning. There's also the desire to beat the traffic leaving the resort, which can be brutal in some places.