The forecast suggests favorable conditions for ski resorts in California's high Sierra, particularly at higher elevations like Mammoth and Tahoe. However, lower elevations may face challenges with rain instead of snow, impacting ski operations and snowpack retention. Southern California mountains have moisture upside but face uncertainty regarding snow levels. Across North America, regions like the northern Rockies and interior western Canada may experience reduced snowfall due to warmer temperatures and less moisture. Skiers and resort operators should prepare for elevation-dependent snowfall and potential variability in conditions throughout the season.