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

Avalanche Forecast

Feb 10th, 2016–Feb 11th, 2016
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
2: Moderate
The avalanche danger rating below treeline will be moderate
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
2: Moderate
The avalanche danger rating below treeline will be moderate

Regions: Glacier.

Alpine temps remained above zero overnight.  Be wary of South and West facing slopes especially if the sun pokes out

Weather Forecast

Today is forecast to be mainly cloudy with isolated flurries.  Alpine temps will reach zero and ridgetop wind will be SW 25-40.  6 cms of snow are forecasted for tonight with up to 20 by Saturday.  Thankfully freezing levels are coming down to 1800m today but won't drop lower than this until the weekend. .

Snowpack Summary

With yesterdays inversion and warm temps the surface of the snow became moist above 1500m on all but north facing alpine slopes. Once the sun went down the moist snow turned into a thick crust. Windslabs exist up high however they are becoming more stubborn. The Jan 4th is down 90-130 and was still producing sporadic sudden planar results.

Avalanche Summary

Natural avalanche activity should taper off today with the freezing level dropping.  However temps remained above zero in the alpine overnight and with a nudge from solar input we could see southerly aspects producing avalanches

Confidence

Freezing levels are uncertain

Avalanche Problems

Storm Slabs

Recent storm snow and wind deposits are settling rapidly over a layer of lower density decomposing precipitation particles. With alpine temps above zero overnight this slab could become more reactive.
Avoid areas with overhead hazard.Minimize exposure to steep, sun exposed slopes when the solar radiation is strong.

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

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 1 - 3

Loose Wet

With alpine temps inverted and staying above zero overnight expect to see moist surface snow in the alpine and a treeline. if the sun comes out expect loose/wet avalanches from rocky areas & cliffs or South facing slopes.
Minimize exposure to steep, sun exposed slopes when the solar radiation is strong.

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

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 1 - 3

Deep Persistent Slabs

The Jan 4 persistent weak layer now buried around 100cm dn is still sporadically failing in snowpack stability tests. If this layer awakens the result would be large and destructive.
Be aware of the potential for wide propagations.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Unlikely - Possible

Expected Size: 2 - 4