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Archived

Avalanche Forecast

Mar 19th, 2018–Mar 20th, 2018
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
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
2: Moderate
The avalanche danger rating below treeline will be moderate
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
2: Moderate
The avalanche danger rating below treeline will be moderate

Regions: Glacier.

Recent storm snow will be sluffing from steep terrain today.  Use caution in exposed areas where even small avalanches could knock you off your feet.

Weather Forecast

Today will be a mostly cloudy day with isolated flurries.  No significant snowfall is forecast for the day but models show potential for convective activity which can produce localized intense flurries.  Ridgetop winds will be Westerly in the 15-25km/hr range and freezing level will reach 1400m.

Snowpack Summary

The snowpack is generally well settled with 5-10 cm of new snow on the surface. Above treeline this new snow remains dry and unconsolidated burying a previous melt freeze crust that extends up to 2300m on all aspects and to mountain top on solar aspects. Below treeline the upper snowpack contains a series of crusts at or near the surface.

Avalanche Summary

Limited natural avalanche activity over the last couple days with overcast skies and low freezing levels. Expect the new 5-10 cm of snow from overnight to be sluffing from steep terrain today. Of note over the last few days are two size 2 low elevation glide crack releases. Previously we've seen loose wet avalanches on steeper solar aspects.

Confidence

Timing or intensity of solar radiation is uncertain

Avalanche Problems

Loose Wet

Cloud cover today should reduce the chance of loose wet slides on solar aspects. However if the sun does come out expect the recent 5-10 cm of new snow to become reactive around rocks and trees on steep solar terrain.
Use caution above cliffs where small avalanches may have severe consequences.

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

Elevations: Alpine, Treeline.

Likelihood: Unlikely - Possible

Expected Size: 1 - 2