If you’re an avid skier or snowboarder, this might be a good weekend to stay home and stream a Warren Miller movie. The impending cold snap that has the Front Range bracing for brutal temperatures also will deliver numbing cold with frostbite potential in the high country, especially in the northern mountains near the Continental Divide, according to the OpenSnow forecasting and reporting service. For many of those resorts, Saturday high temperatures in single digits are forecast to occur at midnight, followed by daytime temperatures falling near or below zero. Resorts with below-zero temperatures during the ski day will include Arapahoe Basin, Loveland and Copper Mountain.