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

Avalanche Forecast

Dec 20th, 2021–Dec 21st, 2021
Alpine
2: Moderate
The avalanche danger rating in the alpine will be moderate
Treeline
1: Low
The avalanche danger rating at treeline will be low
Below Treeline
1: Low
The avalanche danger rating below treeline will be low
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
2: Moderate
The avalanche danger rating below treeline will be moderate
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
2: Moderate
The avalanche danger rating below treeline will be moderate

Regions: Jasper.

Good skiing can still be found in sheltered areas at tree line and below but the hunt is becoming more challenging.

Expect travel delays on the Icefields Parkway Thursday due to avalanche control. Check AB511 for updates.

Weather Forecast

Tuesday-  Mainly cloudy with isolated flurries and trace precipitation.

Alpine high -13

Ridge wind west: 20 km/h.

Wednesday - Snow up to 20 cm.

Alpine temp high -7 C.

Ridge wind southwest: 20 km/h gusting to 55 km/h.

Freezing level at valley bottom

Thursday - Cloudy with sunny periods and isolated flurries. Trace precipitation and moderate W wind.

Snowpack Summary

Recent snow has been redistributed by variable winds creating fresh wind slab in the alpine and on exposed terrain features at treeline. The mid snowpack has settled well with a deteriorating rain crust present up to 1950m. Cold temperatures and a crust/facet layer near the base of the snowpack continues to promote basal faceting.

Avalanche Summary

Two size 1 wind slab avalanches were triggered by explosive avalanche control on Sunday in the Parkers ridge area. Avalanches occurred on cross loaded, alpine features below ridge top. No recent natural avalanche activity observed.

Please share your trip report, Ice and/or Riding conditions on Avalanche Canada's, Mountain Information Network!

Confidence

Intensity of incoming weather systems is uncertain on Wednesday

Avalanche Problems

Wind Slabs

Although the treeline hazard is generally low, be aware that pockets of windslab may exist on exposed terrain features at any elevation. 

  • Watch for stiffer feeling snow. Avoid areas that appear wind loaded.
  • Use caution in lee and cross-loaded terrain near ridge crests.

Aspects: North, North East, East, South East, North West.

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 1 - 2

Deep Persistent Slabs

This problem is trending toward unreactive but our current snowpack structure means this layer could wake up with a large trigger or rapid loading.  Use extra caution in thin areas were humans are most likely to trigger this high consequence layer.

  • Use caution in thin snowpack areas.

Aspects: All aspects.

Elevations: Alpine.

Likelihood: Unlikely

Expected Size: 2 - 3