What Is a Weather Front and Why Do They Matter? โAn approaching cold front will cause temperatures to drop early next weekโ are probably words youโve heard on the TV weather report at some point. But what is a weather front, and why are they important to skiing? A weather front marks the boundary between two air masses. There are five major classifications of air masses: maritime tropical (mT, warm and wet), [โฆ] Weather Clay Malott | September 20, 2021 0 Comments