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

Avalanche Forecast

Mar 14th, 2020–Mar 15th, 2020
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
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
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

Regions: Glacier.

Fresh windslabs from strong outflow winds will be possible for skiers and boarders to trigger today.

The windchill is real in any exposed areas, dress/pack accordingly.

Weather Forecast

An arctic high pressure is moving in, giving clearing skies and cold temps through the weekend. The daily high temperature at Treeline will be -19 on Saturday, dropping to -21 overnight, and back up to -7 on Sunday. Outflow (North-Easterly) winds are currently strong through out he park, but are forecast to abate once the Artic settles in.

Snowpack Summary

Strong NE winds are building fresh windslabs in unusual places. The Mar. 10th interface of suncrust on all solar aspects and possibly small surface hoar on shaded slopes, is now buried down 20-40cms. The Feb 22 persistent weak layer is down 90-130cm and consists of 3-7mm surface hoar on all aspects up to 2450m as well as a crust on solar aspects.

Avalanche Summary

No new avalanches have been reported in park in the past couple of days.  Isolated instances of skiers triggering the February 22nd weak layer continue to occur in neighboring areas.

Confidence

Wind speed and direction is uncertain

Avalanche Problems

Wind Slabs

Strong N-NE winds are building fresh windslabs.

  • Keep an eye out for reverse loading created by North through East winds.
  • If triggered the wind slabs may step down to deeper layers resulting in large avalanches.

Aspects: All aspects.

Elevations: All elevations.

Likelihood: Likely

Expected Size: 1.5 - 2.5

Persistent Slabs

The February 22 surface hoar/sun crust layer is down 90-130cm. Skier-triggering is possible in shallower areas but otherwise this layer will take a big trigger to be activated such as a small avalanche stepping down or large load impacting the slope.

  • Avoid steep convexities or areas with a thin or variable snowpack
  • Be aware of the potential for wide propagations.

Aspects: All aspects.

Elevations: All elevations.

Likelihood: Unlikely - Possible

Expected Size: 2 - 3.5