If it had struck just a few years ago, the historically low snowfall season that occurred in the western United States in 2018 would have seriously hurt Vail Resorts (NYSE: MTN) business. But Vail is a stronger company today, boasting a broader geographic profile, higher profitability, and a steadier customer base of season pass holders.These assets combined to power higher core earnings for the ski resort giant while putting it in position to reach new sales and profit records in fiscal 2019.