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

Avalanche Forecast

Nov 22nd, 2024–Nov 23rd, 2024
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
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
1: Low
The avalanche danger rating below treeline will be low

Regions: McGregor, North Rockies, Pine Pass, Sugarbowl, Tumbler.

Observations are limited and early-season hazards are abundant.

Take a conservative approach and keep in mind that cold temperatures increase the consequence of any accident or injury.

Confidence

Low

Avalanche Summary

Reports of recent avalanches have been limited to a couple small, human-triggered slabs on cutbacks.

We expect that strong easterly winds on Friday will have formed stiff wind slabs at all elevations.

If you are getting out in the backcountry, consider making a post on the MIN (Mountain Information Network)

Snowpack Summary

50 cm of recent snow has been redistributed by strong easterly winds at all elevations.

Below this, facets or surface hoar may overly a crust buried in early November.

At the north end of the forecast area, expect to find weak, sugary depth hoar close to the ground.

Treeline snowpack depths are around 100 cm.

In most places below treeline, ground roughness is still visible, and the snow depth is likely below the threshold for avalanches.

Weather Summary

Friday Night

Cloudy with up to 5 cm of snow expected. 50 to 80 km/h east ridgetop wind. Treeline temperature -20 °C.

Saturday

Cloudy with light snowfall. 40 to 80 km/h east ridge top winds. Treeline temperature -22 °C.

Sunday

Mainly cloudy with light snowfall. 30 to 60 km/h northeast ridgetop winds. Treeline temperature -16 °C.

Monday

A mix of sun and cloud. 15 to 40 km/h northwest ridgetop wind. Treeline temperature -13 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Seek out sheltered terrain where new snow hasn't been affected by wind.
  • Keep your guard up at all elevations. Wind slab formation has been extensive and could extend into openings below treeline.

Avalanche Problems

Wind Slabs

Strong easterly winds have redistributed recent storm snow into stiff wind slabs in a reverse-loading pattern. Expect to find slabs at lower elevations and lower down on slopes than you might typically expect.

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

Elevations: All elevations.

Likelihood: Possible - Likely

Expected Size: 1 - 2