Wet-bulb temperature: The wet-bulb temperature is the temperature a parcel of air would have if it were cooled to saturation (100% relative humidity) by the evaporation of water into it, with the latent heat being supplied by the parcel.”
Source: WeatherClasses.com
Whales: The snow piled up in large mounds.
Source: Encyclopedia.com
Snow guns: A machine that makes artificial snow and blows it onto ski slopes.
Source: Oxford English Dictionary
Race to open: The competition among Colorado ski areas to be the first to open for ski season.