Alyeska 72? way pre-tram. We got nuked like 3 or 4 feet. A chinook (high winds and rain moved right in, the mt was closed. It immediately went from 40 something and rain to -20 and wind, the mt is still closed.
After being closed nearly a week it opened up in the mid 30's. The mountain was perfectly smooth and firm with a touch of corn on top, it was "race ready". We had a world cup GS up there, this storm made the entire mountain was better, you could go anywhere as fast as you wanted. These are not the conditions you would associate with the Chugach, but that day was epic. We did pay a very high price for this as the winter went along, snow would hardly stick on top that layer.
Have skied a lot of very deep snow in over 50 years of skiing, but only 1 day like that.