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Avalanche Forecast - North Columbia - Cariboos    


Date Issued   Friday, 27 January 2012 7:22 PM      Valid Until    Saturday, 28 January 2012 4:00 PM
Danger Rating: Saturday Alpine Treeline Below Treeline
4 - High Very dangerous avalanche conditions. Travel in avalanche terrain not recommended.
4 - High Very dangerous avalanche conditions. Travel in avalanche terrain not recommended.
3 - Considerable Dangerous avalanche conditions. Careful snowpack evaluation, cautious route finding and conservative decision making essential.
Sunday Monday
Alpine 4 - High 3 - Considerable
Treeline 4 - High 3 - Considerable
Below Treeline 3 - Considerable 2 - Moderate
Confidence: Fair - Timing of incoming weather is uncertain on Saturday
Learn more about danger ratings
Low Moderate Considerable High Extreme

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.

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.

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.

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.

Avoid all avalanche terrain.

Natural and human-triggered avalanches certain.

Large to very large avalanches in many areas.

Wind Slabs
What Elevation Zone?
Which Slopes?
Chance of Avalanches?
Expected Size?
Wind slabs continue to build behind ridges and terrain breaks. Areas that avalanched earlier this week may re-load as the storm continues. Cornices are looming above many slopes, which could act as a trigger for deep avalanches.
Travel and Terrain Advice
  • Avoid all avalanche terrain during periods of heavy loading from new snow, wind, or rain.
  • Avoid lingering in runout zones.
  • Do not travel on slopes that are exposed to cornices overhead.
Storm Slabs
What Elevation Zone?
Which Slopes?
Chance of Avalanches?
Expected Size?
Storm slabs continue to build above buried weak layers. Warming and snowfall this weekend will increase the storm slab problem.
Travel and Terrain Advice
  • Avoid all avalanche terrain during periods of heavy loading from new snow, wind, or rain.
  • Avoid lingering in runout zones.
  • Do not travel on slopes that are exposed to cornices overhead.

Prepared by pgoddard