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

Avalanche Forecast

Feb 14th, 2015–Feb 15th, 2015
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
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: Little Yoho.

http://www.pc.gc.ca/apps/scond/Cond_E.asp?oID=19299&oPark=100092

Tricky conditions continue. Cooler temperatures are on the way, but it will take some time for the snowpack to become less reactive. Solar input will augment the snowpack problems. SH

Weather Forecast

Cooler temperatures are finally arriving for Sunday with -6C at valley bottom and -10C or cooler in the alpine. Light gusting moderate N-NW winds and a mix of sun and cloud. Seasonal temperatures will persist for the next few days.

Snowpack Summary

60-80 cm settled storm snow at treeline and above overlies a generally settled snowpack. Some snow pits have found facets at this interface. Recent wind slabs have formed on many different aspects at higher elevations. Isothermal snow exists below 2000m. Cooler temperatures Sunday will help overnight crust formation.

Avalanche Summary

Limited observations today in Little Yoho but a natural cycle occurred East of the Divide in Banff/Yoho/Kootenay Parks.These were mainly triggered by recent loading by N winds and sun. Click here for photos of these events. As well, a few skier triggered slides were reported over the last 2 days with limited involvement in the same region.

Confidence

Due to the quality of field observations on Saturday

Avalanche Problems

Wind Slabs

Recent winds from many directions have formed wind slabs prime for human triggering.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Possible - Likely

Expected Size: 1 - 3

Loose Wet

Isothermal snow exists below 2000m. It will not take much solar input to break down a freeze, especially in steep gully terrain.

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

Elevations: Alpine, Treeline.

Likelihood: Possible - Likely

Expected Size: 1 - 2