Bob: Let me clarify. The cheap airfares into Mammoth are good through June 30. And the hype covering them is expressly promoting Mammoth as the gateway to Yosemite as well as the mountain. In the last few years in which April 1 Tuolomne drainage snowpack approached this years (178%) opening days were June 24, (163%), July 1 (156%), and June 30 (178 %).
Thats what the one has to do with the other.
And despite the NPS disclaimer, the correlation between April 1 snow pack and opening day is pretty good. As of today, the cats (which precede the plows) are at Crane Flat
I wish the crews and the Mammoth Lakes CofC the best, but any June opening would be an achievement, and Memorial Day would be the Miracle on Snow.