Danger Level

Snowpack Stability

Avalanche Probability and Avalanche Trigger

Recommended Action in the Backcountry

...What...

...Why...

...What To Do...

LOW

The snowpack is generally well bonded and stable.

Natural avalanches highly unlikely. Human triggered avalanches unlikely.

Travel is generally safe. Normal caution advised.

MODERATE

The snowpack is moderately well bonded on some steep slopes, otherwise generally well bonded.

Natural avalanches unlikely. Human triggered avalanches possible.

Generally favourable conditions. Routes should be selected with care especially on steep slopes.

CONSIDERABLE

The snowpack is moderately to weakly bonded in most places.

Natural avalanches possible. Human triggered avalanches probable.

Backcountry skiing and travel should only be carried out by experienced persons able to evaluate avalanche hazards. Steep slopes of the aspect and altitude indicated should be avoided.

HIGH

The snowpack is weakly bonded in most places.

Natural and human triggered avalanches likely.

Backcountry skiing and travel should be restricted to low angled slopes; areas at the bottom of slopes may be hazardous.

EXTREME

The snowpack is generally weakly bonded and largely unstable.

Widespread natural or human triggered avalanches certain.

No backcountry skiing or travel should be undertaken