Avalanche Danger Scale

North American Public Avalanche Danger Scale
Avalanche danger is determined by the likelihood, size and distribution of avalanches.

Danger Level   Travel Advice Likelihood of Avalanches Avalanche Size and Distribution
extreme high and extreme icon Avoid all avalanche terrain. Natural and human triggered avalanches certain. Large to very large avalanches in many areas.
high and extreme icon Very dangerous avalanche conditions. Travel in avalanche terrain not recommended. Natural avalanches likely; human-triggered avalanches very likely. Large avalanches in many areas; or very large avalanches in specific areas.
Considerable icon Dangerous avalanche conditions. Careful snowpack evaluation, cautious route-finding and conservative decision-making essential. Natural avalanches possible; human-triggered avalanches likely. Small avalanches in many areas; or large avalanches in specific areas; or very large avalanches in isolated areas.
moderate icon Heightened avalanche conditions on specific terrain features. Evaluate snow and terrain carefully; identify features of concern. Natural avalanches unlikely; human-triggered avalanches possible Small avalanches in specific areas; or large avalanches in isolated areas.
low icon Generally safe avalanche conditions. Watch for unstable snow on isolated terrain features. Natural and human-triggered avalanches unlikely. Small avalanches in isolated areas or extreme terrain.

Safe backcountry travel requires training and experience. You control your own risk by choosing where, when and how you travel.

The danger scale as used by the CAC is intended for public recreation in uncontrolled backcountry areas.

Printable Versions

There are 3 printable versions of the Avalanche Danger Scale.
For Black and White, right click the screen and print.
There is a colour version and a French version.

Companion Rescue Card

This card describes in a step by step process how to do a companion rescue with a transceiver, probe and shovel. Print it off and always carry it with you!
Companion Rescue Card
French version