Forecast of the Day • A National Weather Forecasting Contest

Although a cold air mass covers the entire center and eastern parts of the conterminous U.S., the -15 F temperatures in the core of the cold air of a couple of days ago have disappeared. For Thursday, the coldest predicted temperatures at our contest sites are Gunnison and Alamosa, Colorado. What do those two sites have in common that could result in colder temperatures? Let's predict Tmin for Alamosa.