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Avalanche Forecast - North Columbia - Cariboos    


Date Issued   Sunday, 04 March 2012 4:24 PM      Valid Until    Monday, 05 March 2012 4:00 PM
Danger Rating: Monday 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.
4 - High Very dangerous avalanche conditions. Travel in avalanche terrain not recommended.
Tuesday Wednesday
Alpine 4 - High 4 - High
Treeline 4 - High 3 - Considerable
Below Treeline 3 - Considerable 3 - Considerable
Confidence: Fair - Timing, track, or intensity of incoming weather is uncertain
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.

Storm Slabs
What Elevation Zone?
Which Slopes?
Chance of Avalanches?
Expected Size?
Snow is falling with fluctuating temperatures, creating weak storm slabs.
Travel and Terrain Advice
  • Travel in avalanche terrain is not recommended without advanced training and extensive experience.
  • Avoid exposure to overhead avalanche terrain, as large avalanches may reach the end of runout zones.
Wind Slabs
What Elevation Zone?
Which Slopes?
Chance of Avalanches?
Expected Size?
Large amounts of available snow and strong winds are creating widespread wind slabs, even at treeline. Large cornices also threaten many slopes.
Travel and Terrain Advice
  • Travel in avalanche terrain is not recommended without advanced training and extensive experience.
  • Avoid exposure to overhead avalanche terrain, as large avalanches may reach the end of runout zones.
Persistent Slabs
What Elevation Zone?
Which Slopes?
Chance of Avalanches?
Expected Size?
Persistent weaknesses in the upper snowpack are unpredictable and tricky to manage. They are becoming more reactive as storm snow overloads them. Be aware of the potential for surprisingly large, wide avalanches at all elevations.
Travel and Terrain Advice
  • Travel in avalanche terrain is not recommended without advanced training and extensive experience.
  • Avoid exposure to overhead avalanche terrain, as large avalanches may reach the end of runout zones.

Prepared by pgoddard