My flight was one of two to depart at 4:20pm, but because the inbound flight was delayed, we were now scheduled to depart at 4:45pm, and start boarding at 4:25pm. About 5 minutes before boarding was due to start I thought I should probably go to the toilet and get packed up and ready to go. On my way to the toilet, I stopped to look at the view of the hills to the east out of the big picture windows. By the time I came out of the toilets, all I could see out of that window was white. The entire airport was engulfed in a blizzard. It was like being inside a snow globe. Over the next hour, they just kept delaying the flights by 15 minutes at a time, until finally around 5:30pm there was a bit of a break.