. 6 inches of powder takes a while to turn into moguls. As soon as it gets a bumpy mess....groom it.
Most places are loath to run a groomer while they're open...safety and insurance reasons. And 6 inches of powder will get completely tracked out within a couple of hours.
If you time it right, then you'll find what you're looking for out west. You'll be lucky to find it in the East more than once a year, if that. And obviously, not where you ride. Time to study the weather charts and jump in the car at 2am like the rest of us.