Yeah, I always think I'm more or less kinda prepared for the season, but I always forget that the most important thing to plan for is that I can't plan.
For the Bears who cry "whiner," you're right, of course. But when skiing is as big a part of your winter, as it is for most of us here, and you see it snatched away so damn predictably, in Lucy van Pelt fashion, just as you're taking your first good run at it, it is genuinely disappointing. In addition, it makes you feel like you have the IQ of, well, Charlie Brown, for having entertained the fantasy that something else might happen this time.
mdf's strategy is good if you can get away with it. In my case I was able to arrange for some flex time last week, most of which I ended up spending nursing a bad cold. This week was a complete no-go, with an ironclad commitment on Sunday (when it dumped all over the state), plus on-call duty at work each day, as I looked out at the plentiful fluff and received one email after another from friends, about how good the skiing was. Now, of course this exact thing happens to skiers all over the country every week. But what does not happen to skiers all over the country is the very high likelihood - so sympathetically described by the OP - that it will all deteriorate so radically in such short order.