Pretty crazy, they just posted it to their Facebook! It's Monday if you don't have a season pass or express card.
"We say winter starts Sunday at noon, when we open for Season Pass and Express Card holders. The Beast opens to the public at 9:00 a.m. Monday.
This weekend's Mountain Bike Park operations will not be affected, so pair your final DH laps with your first turns on North Ridge.
Get passes and Express Cards before midnight for the best prices."