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

Avalanche Forecast

Mar 1st, 2020–Mar 2nd, 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
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

Regions: Kananaskis.

More snow and winds are making windslabs more reactive and widespread in the alpine as well as down into treeline. These slabs will take a few days to stabilize. 

Confidence

High -

Weather Forecast

Warm and windy is on deck for Monday! Winds are forecast to be around 100KPH out of the west with temps around -3C in lower elevations. No new snow is forecast and a mix of sun and cloud is expected. Sunscreen and windscreen if your headed out...

Avalanche Summary

A few sz 1-5-2 windslabs were observed on N aspects along with a few isoalted loose dry slides from steep N aspects. These windslabs were failing in the new snow and not stepping down to any deeper layers. 

Snowpack Summary

Another 10cm of snow fell on Sunday giving us 25cm of recent snow. But...the winds arrived today and wow did it blow the snow around. Widespread windslabs can be expected in alpine terrain and down into treeline. Warm temps also made the snow moist on steep solar aspects and a few loose wet slides were observed later in the day. Sheltered arounds at treeline and below will hold hope for good skiing!

Terrain and Travel

  • Watch for newly formed and reactive wind slabs as you transition into wind affected terrain.
  • Watch your sluff: it may run faster and further than you expect.
  • Use extra caution around cornices: they are large, fragile, and can trigger slabs on slopes below.

Avalanche Problems

Wind Slabs

The recent snow and strong winds are building windslabs in alpine terrain and treeline areas. Forecasters were observing cracking while travelling along ridgelines on Saturday and with the more snow on sunday, we expect these slabs to continue to get more reactive.  

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Likely

Expected Size: 1 - 2.5

Cornices

Cornices are growing at this time with the new snow, strong winds and warm temps. If they fail, its likely they will trigger a windslabs or deep persistent slab on the underlying slopes. 

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

Elevations: Alpine.

Likelihood: Likely

Expected Size: 2 - 3

Deep Persistent Slabs

There is a small chance the new load will overload the deep layers. We are expecting a significant rapid loading pulse early in the storm. Sparsely treed areas and thin crossloaded terrain are likely areas to cause trouble.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Unlikely

Expected Size: 1.5 - 3