Recognize Red Flags
Recent Avalanches
Recent avalanches indicate that the snowpack is unstable.
Signs Of Unstable Snow
Signs of unstable snow include cracking or collapsing, whumpfing sounds, or 'drum-like' sounds.
Heavy Snowfall or Rain
Significant snowfall or rain can make the snowpack unstable for several days.
Wind Blown Snow
Wind is a significant factor in avalanche activity. Avoid cornices and drifts on steep slopes.
Rapid Melting
Rain, strong solar radiation, or extended periods of above freezing temperatures can cause the avalanche danger to rise.
Persistent Slabs
Persistent slabs may be triggered weeks after a storm. Check the Avalanche Forecast to find out if they exist in your area.