Avalog
Register
Get forecast notifications
Create an account to receive email notifications when forecasts are published.
Register
Login
Archived

Avalanche Forecast

Mar 28th, 2021–Mar 29th, 2021
Alpine
3: Considerable
The avalanche danger rating in the alpine will be considerable
Treeline
2: Moderate
The avalanche danger rating at treeline will be moderate
Below Treeline
1: Low
The avalanche danger rating below treeline will be low
Alpine
2: Moderate
The avalanche danger rating in the alpine will be moderate
Treeline
2: Moderate
The avalanche danger rating at treeline will be moderate
Below Treeline
1: Low
The avalanche danger rating below treeline will be low
Alpine
2: Moderate
The avalanche danger rating in the alpine will be moderate
Treeline
2: Moderate
The avalanche danger rating at treeline will be moderate
Below Treeline
2: Moderate
The avalanche danger rating below treeline will be moderate

Regions: Jasper.

Avalanche conditions are expected to improve in the short term with cooling temperatures.

High freezing levels are forecasted for Wednesday and may lead to an increase in avalanche hazard.

Weather Forecast

The current storm is expected to end overnight Sunday with isolated flurries, light to moderate N-NW winds and freezing levels lowering to valley bottom on Monday and Tuesday. 

Snowpack Summary

10cm of HN with continued snowfall brings the recent HST up to 40cm. This new snow overlies previous surfaces such as hard windslab and variable crusts at TL/ALP elevations. The snow pack varies throughout the region from strong supportive snow in deeper areas to weak facetted snow in the shallow areas.

Avalanche Summary

Limited observations due to poor visibility. Avalanche control is planned for later today and this evening and results will be reported in tomorrow's bulletin.

Confidence

Intensity of incoming weather systems is uncertain

Avalanche Problems

Wind Slabs

Recently formed wind slabs can be found in lee features near ridge crests, and in cross-loaded gullies.

  • Be careful with wind loaded pockets, especially in steep confined alpine terrain.
  • Be alert to conditions that change with elevation.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Likely

Expected Size: 1 - 2.5

Storm Slabs

The new snow along with warm temperatures may lead to the formation of storm slabs. The distribution BTL is dependant on the freezing levels Sunday afternoon / evening (elevations where it is raining and below will not have a storm slab problem).

Aspects: All aspects.

Elevations: All elevations.

Likelihood: Likely

Expected Size: 1 - 2

Deep Persistent Slabs

New snowfall, warm temperatures and moderate to strong winds may be the triggers that wake up this layer.

  • Be alert to conditions that change with elevation.
  • If triggered the storm/wind slabs may step down to deeper layers resulting in large avalanches.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Unlikely - Possible

Expected Size: 1.5 - 3