Welcome the Mt. Shasta avalanche and climbing information website.
April 11, 2021 @ 6:00 am
The Mount Shasta Avalanche Center has closed its doors for the 2020-2021 winter season. We will resume issuing daily avalanche advisories in the fall of 2021.
The climbing rangers will be updating the 'overall climbing conditions' and 'climbing route' webpages throughout the 2021 climbing season. For an overview of the most common springtime avalanche concerns, please read the full spring avalanche statement below.
No current avalanche forecast is available
No current avalanche forecast is available
No current avalanche forecast is available
No current avalanche forecast is available
Below Treeline is the lowest of three elevation bands used in the advisories. It extends from valley floors or snowline to Near Treeline. Open areas and sparse trees are possible. Snowfall tends to be less than the other elevation bands. Tree cover shelters the snow from wind effects.
×No current avalanche forecast is available
Near Treeline is the middle of the three elevation bands used in the advisories. It is a transition zone between dense forests and treeless alpine areas. It is the narrowest of the three elevation bands, extending only a few hundred feet above and below the treeline. It varies locally, and is not a constant elevation or width.
×No current avalanche forecast is available
Above Treeline is the highest of the three elevation bands used in the advisories. It includes alpine areas where the most snow falls and the winds are the strongest. It is not an exact elevation, but a characteristic of the terrain, beginning as the treeline transitions into open slopes extending to ridges and the tops of the highest peaks.
×North American Avalanche Danger Scale
Avalanche danger is determined by the likelihood, size and distribution of avalanches.
Danger Level
Travel Advice
Watch for signs of unstable snow such as recent avalanches, cracking in the snow, and audible collapsing. Avoid traveling on or under similar slopes.
Likelihood
Size & Distribution
Safe backcountry travel requires training and experience. You control your own risk by choosing where, when and how you travel.
North American Avalanche Danger Scale
Avalanche danger is determined by the likelihood, size and distribution of avalanches.
Danger Level
Travel Advice
Generally safe avalanche conditions. Watch for unstable snow on isolated terrain features.
Likelihood
Natural and human-triggered avalanches unlikely.
Size & Distribution
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.
North American Avalanche Danger Scale
Avalanche danger is determined by the likelihood, size and distribution of avalanches.
Danger Level
Travel Advice
Heightened avalanche conditions on specific terrain features. Evaluate snow and terrain carefully; identify features of concern.
Likelihood
Natural avalanches unlikely; human-triggered avalanches possible.
Size & Distribution
Small avalanches in specific areas; or large avalanches in isolated areas.
Safe backcountry travel requires training and experience. You control your own risk by choosing where, when and how you travel.
North American Avalanche Danger Scale
Avalanche danger is determined by the likelihood, size and distribution of avalanches.
Danger Level
Travel Advice
Dangerous avalanche conditions. Careful snowpack evaluation, cautious route-finding and conservative decision making essential.
Likelihood
Natural avalanches possible; human triggered avalanches likely.
Size & Distribution
Small avalanches in many areas; or large avalanches in specific areas; or very large avalanches in isolated areas.
Safe backcountry travel requires training and experience. You control your own risk by choosing where, when and how you travel.
North American Avalanche Danger Scale
Avalanche danger is determined by the likelihood, size and distribution of avalanches.
Danger Level
Travel Advice
Very dangerous avalanche conditions. Travel in avalanche terrain not recommended.
Likelihood
Natural avalanches likely; human-triggered avalanches very likely.
Size & Distribution
Large avalanches in many areas; or very large avalanches in specific areas.
Safe backcountry travel requires training and experience. You control your own risk by choosing where, when and how you travel.
North American Avalanche Danger Scale
Avalanche danger is determined by the likelihood, size and distribution of avalanches.
Danger Level
Travel Advice
Avoid all avalanche terrain.
Likelihood
Natural and human-triggered avalanches certain.
Size & Distribution
Large to very large avalanches in many areas.
Safe backcountry travel requires training and experience. You control your own risk by choosing where, when and how you travel.
