In this section, you will find the various statistics, from the most useful tools in an avalanche by the most recent year to the most avalanche-prone terrain and the weather you should beware of.
To start, slab avalanches are the most dangerous you will encounter. The snow breaks right off, leaving behind a clean fault line. Looking at the starting point afterward, it would appear as though someone had simply taken a knife and slit the snow away. The reason why these are so dangerous lies in the smooth cut of the snow: this decreases the friction of the avalanche, therefore decreasing the number of factors slowing down the avalanche.
Most avalanches occur on terrain with a slope of 30°-45°. This way, it’s both steep enough for gravity to take its affect on the massess of snow built up on the mountain and gentle enough for the snow to have anywhere to build up or to have a path to follow once gravity takes control.
Tahoe Avalanche Awareness 