This avalanche was, of course, in an "out of bounds" area. I can't imagine why folks would ski in those areas when so much wet, heavy snow has just fallen.
Masaki, I have been to Park City several times, (tho' not in recent years) as my neighbors have a house there right across the street from the main lift area. Be sure and ski for a day at least in Deer Valley near the beginning of the trip to see if you prefer it. Their day-time eating facilities were many cuts above the normal fare at most places where I have skiied Not sure about the restaurants in town for dinner these days. Check out with the locals to see if Stein Erikson's Lodge in Deer Valley has a nice restaurant for a really special evening with our Mom-to-be! It is a top notch property.