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

Avalanche Forecast

Apr 24th, 2016–Apr 25th, 2016
Alpine
Below Threshold
The avalanche danger rating in the alpine will be below threshold
Treeline
Below Threshold
The avalanche danger rating at treeline will be below threshold
Below Treeline
Below Threshold
The avalanche danger rating below treeline will be below threshold
Alpine
Below Threshold
The avalanche danger rating in the alpine will be below threshold
Treeline
Below Threshold
The avalanche danger rating at treeline will be below threshold
Below Treeline
Below Threshold
The avalanche danger rating below treeline will be below threshold
Alpine
Below Threshold
The avalanche danger rating in the alpine will be below threshold
Treeline
Below Threshold
The avalanche danger rating at treeline will be below threshold
Below Treeline
Below Threshold
The avalanche danger rating below treeline will be below threshold

Regions: Banff Yoho Kootenay.

We have finished producing daily forecasts for the year. Enjoy the SPRING CONDITIONS. Stay up to date with mountain conditions with Parks Mountain Safety and the ACMG's Mountain Condition Report.

Weather Forecast

The snowpack's strength is tied mainly to heating at this time of the year. Pay attention to freezing levels as well as heat inputs from rain and the sun to help determine the strength of surface crusts and the condition of the underlying snow. 

Snowpack Summary

Recent rain to low Alpine elevations has made approaches difficult as the snowpack below treeline has remained isothermal and is melting away quickly.  In the high Alpine, new snow will be accumulating above recent hard surfaces.

Avalanche Summary

Loose wet and wet slab avalanche activity has been reported as a result of last week's warm temperatures and the recent precipitation over the weekend.

Confidence

Avalanche Problems

Loose Wet

At low elevations, and depending on the freeze, a crust may be found over a wet (isothermal) snow. All avalanche terrain should be avoided later in the day when the crust on top of the snowpack breaks down due to daytime heating.
Travel early on frozen crusts before the heat of the day.Watch for clues, like sluffing off of cliffs, that the snowpack is warming up.

Aspects: All aspects.

Elevations: All elevations.

Likelihood: Likely

Expected Size: 1 - 2

Wet Slabs

Slab activity failing on the mid and lower pack weakness remains a possibility when heating is significant enough to affect more than just the surface of the snowpack.
Pay attention to overhead hazards like cornices which could easily trigger deep slabs.If triggered the loose wet sluffs may step down to deeper layers resulting in large avalanches.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 2 - 3

Storm Slabs

Watch for loose dry and slab activity following spring storms that deposit snow at alpine elevations.
Minimize exposure during periods of heavy loading from new snow, wind.New snow will require several days to settle and stabilize.

Aspects: North, North East, East.

Elevations: Alpine.

Likelihood: Possible

Expected Size: 1 - 2