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Avalanche Forecast - Kananaskis Country    

This forecast produced by the Public Safety staff of Kananaskis Country, Government of Alberta. For more information: avalanche.safety@gov.ab.ca phone: 403-678-5508

Date Issued   Tuesday, 22 April 2014 3:35 PM      Valid Until    Wednesday, 23 April 2014 9:00 PM

Much cooler conditions on Wednesday will tighten up the snowpack, but still be aware of periods of intense solar radiation that can rapidly increase the avalanche danger on solar aspects.

Danger Rating: Wednesday Alpine Treeline Below Treeline
1 - Low Generally safe avalanche conditions. Watch for unstable snow on isolated terrain features.
1 - Low Generally safe avalanche conditions. Watch for unstable snow on isolated terrain features.
1 - Low Generally safe avalanche conditions. Watch for unstable snow on isolated terrain features.
Thursday Friday
Alpine 1 - Low 1 - Low
Treeline 1 - Low 1 - Low
Below Treeline 2 - Moderate 2 - Moderate
Confidence: Fair - Timing or intensity of solar radiation 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.

Deep Persistent Slabs
What Elevation Zone?
Which Slopes?
Chance of Avalanches?
Expected Size?

The basal weak layers have become reactive with the recent Spring weather. Cooler conditions on Wednesday will reduce the likelihood of triggering this problem, but any daytime heating or solar radiation could increase avalanche activity.

Travel and Terrain Advice
  • Cornices become weak with daytime heating.
  • Choose the deepest and strongest snowpack areas on your run.
  • Avoid exposure to solar aspects overhead, large avalanches may reach the end of run out zones.
  • Avoid sun exposed slopes when the solar radiation is strong, especially if snow is moist or wet.
Loose Wet
What Elevation Zone?
Which Slopes?
Chance of Avalanches?
Expected Size?

If the sun pokes thought the clouds, radiation-triggered sluffs are possible.

Travel and Terrain Advice
  • Minimize exposure to sun exposed slopes when the solar radiation is strong.

Prepared by jeremy.mackenzie