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Archived

Avalanche Forecast

Apr 29th, 2024–May 2nd, 2024
Alpine
4: High
The avalanche danger rating in the alpine will be high
Treeline
4: High
The avalanche danger rating at treeline will be high
Below Treeline
4: High
The avalanche danger rating below treeline will be high
Alpine
4: High
The avalanche danger rating in the alpine will be high
Treeline
4: High
The avalanche danger rating at treeline will be high
Below Treeline
4: High
The avalanche danger rating below treeline will be high
Alpine
3: Considerable
The avalanche danger rating in the alpine will be considerable
Treeline
3: Considerable
The avalanche danger rating at treeline will be considerable
Below Treeline
2: Moderate
The avalanche danger rating below treeline will be moderate

Regions: Bow Valley, Highwood Pass, Kananaskis, North 40, Spray - KLakes.

HIGH AVALANCHE HAZARD - HEAVY SNOWFALL WARNING

Up to 60cm of snow is expected by Wednesday. Avoid the backcountry until the storm passes and the avalanche hazard has diminished.

Confidence

Moderate

Avalanche Summary

Expect to see lots of avalanche activity with this incoming storm.

Snowpack Summary

!!! UPDATE !!!

Heavy snowfall warning with up to 60cm of snow is expected for the Kananaskis Region from Monday night to Wednesday. This will bring the hazard rating to HIGH. This new snow will now be sitting on top of a mostly firm or melt/freeze crust on all aspects and will likely be a good sliding interface, especially on steeper terrain. This new snow will likely form a soft slab with the warmer temperatures or a wind slab with the forecast winds. Both of these slabs will be sensitive to triggering and have the potential to propagate far.

Patience is the game here; wait for the new snow to settle and bond before venturing into the backcountry.

Weather Summary

Heavy snowfall warning for the Kananaskis Region with up to 60cm of storm snow by Wednesday. Expect 25cm of snow by Tuesday morning with the rest falling on Tuesday and Wednesday. Winds are expected to be Westerly in the moderate range and increasing on Wednesday.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Watch for changing conditions today, storm slabs may become increasingly reactive.
  • Storm slab size and sensitivity to triggering will likely increase through the day.
  • Use increased caution at all elevations. Storm snow is forming touchy slabs.

Avalanche Problems

Storm Slabs

Large Spring storm is forecast. Likely turn the new snow into a soft slab.

Aspects: All aspects.

Elevations: All elevations.

Likelihood: Certain

Expected Size: 1.5 - 3

Loose Dry

Expect loose dry sluffing in steep terrain.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Certain

Expected Size: 1 - 2

Deep Persistent Slabs

This will be a concern when the crust breaks down.

Aspects: All aspects.

Elevations: Alpine.

Likelihood: Unlikely - Possible

Expected Size: 1 - 2