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

Avalanche Forecast

Nov 23rd, 2024–Nov 24th, 2024
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
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
1: Low
The avalanche danger rating in the alpine will be low
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

Regions: Glacier.

Stubborn wind slabs are present in the Alpine. Watch out for these slabs at ridgetop and especially in unsupported rocky terrain.

There's lots of riders in a small area right now. Pay attention to what groups are doing above and below you and play nice!

Confidence

High

Avalanche Summary

Riders are still finding pockets of reactive wind slab mostly in alpine lee features. Good photos in this MIN report

The field team observed a rider triggering a small slab in a steep unsupported feature on Thursday. The rider was unharmed but was pushed a short ways through rocky terrain

A few small natural avalanches along the highway corridor have been observed in the last three days.

Snowpack Summary

Storms have deposited 10-20cm of new snow in recent days. Northeast winds have created wind slab in the alpine, mostly around ridgetop.

Roughly 50-80 cm of settled snow sits over the November 9 crust. This crust is present up to 2100 m and higher on solar facing terrain.

Below Treeline, the snowpack tapers to 40cms or less, making ski outs treacherous! Expect glaciers to have poor coverage and thin bridging.

Weather Summary

At Roger's pass we'll see light flurries in the wake of the frontal system but not any significant snowfall.

Overnight: Nil precip, W wind: 10-20km/hr, Freezing Level(FZL) 900m

Sun: Cloudy with sunny periods. Nil precip. Alp High -8°C. Light SW winds, 1100m FZL

Mon: Cloudy with flurries, Snow: 4cms. Alp high -7°C, Wind SW 20 km/hr, 1300m FZL

Tues: Snowfall: Trace, Alp high -11°C, Light winds, 900m FZL

Terrain and Travel Advice

  • Recent wind has varied in direction, so watch for wind slabs on all aspects.
  • Be alert to conditions that change with elevation, aspect, and exposure to wind.
  • Carefully evaluate steep lines for wind slabs.

Avalanche Problems

Wind Slabs

Recent variable winds have created wind slabs in alpine lee features. There has been windloading from North and Northeast winds, which has deposited snow in non-typical areas. Keep a heads up in steep unsupported terrain.

Aspects: All aspects.

Elevations: Alpine.

Likelihood: Possible - Likely

Expected Size: 1 - 2