Finding yourself buried under the snow is not an enviable experience. But it doesn’t have to be a fatal one. Once the snow stops moving, it turns from a fluid medium to a cement-like consistency. Work quickly to dig your way to the surface as the slide slows. If possible, shove one arm toward the surface and move it around to create an air shaft. Use your hands to carve out a breathing space. Work methodically to avoid exhaustion. Conserve your breath, by waiting to shout until you hear rescuers above you. If it seems possible to dig yourself out, but you’re disoriented from your tumble, you need to know which direction is up. If the snow layer above you is relatively thin, daylight might shine through, so go toward that. If you’re too deep for light to be your guide, clear a space near your mouth and spit. Watch the direction in which gravity pulls the spit, and head the other way.