Lemme think this out. It might revolutionize winter sports in the backcountry 'round here.

I get caught in a a snowslide and there I am, laying there under all this snow. So I reach for the nipple of my trusty hydration pack, which is full of beer.

A bit later, Nature does what Nature does and I unzip and let 'er rip.
If I'm facing towards the sky (even though I can't see it), eventually a yellowish geyser erupts and Search and Rescue comes to my aid. If nothing else I open a breathing hole and mark my location with a yellow stalagmite.

If I'm facing the other way I create a whole new hole through which I might eventually crawl to safety.