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Archived

Avalanche Forecast

Feb 12th, 2012–Feb 13th, 2012
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
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
1: Low
The avalanche danger rating below treeline will be low

Regions: South Coast.

Glide cracks present a local hazard on steep rock slabs, particularly in the Coquihalla.

Confidence

Good - -1

Weather Forecast

Monday: Mainly sunny conditions, with light northerly winds. Freezing level around 1300 m. Tuesday: Sunny in the morning, becoming increasingly cloudy later on with the possibility of some light snow late in the day. Winds backing southwesterly. Freezing level around 900 m. Wednesday: Mostly dry and bright. Freezing level around 800 m.

Avalanche Summary

Glide crack activity up to size 2.5 has been reported recently in the Coquilhalla at treeline and below. Glide cracks are hard to predict, avoid riding in terrain below them. No other avalanche activity has been reported.

Snowpack Summary

Warm temperatures led to moist snow below treeline, which has now frozen in many areas giving a crust. A skiff of snow has buried an assortment of old snow surfaces comprising, depending on location, crusts, old wind slab, surface hoar and surface facets. The crusts formed on all aspects at lower elevations and on steep solar aspects higher up. Old wind slabs were on a variety of aspects behind exposed terrain features, and were particularly prominent in the Coquihalla due to outflow winds. The surface hoar (5-10mm) was most prominent at and above the recent cloud associated with inversion conditions. Surface facets have grown particularly on northern aspects where colder temperatures have persisted. In general the snowpack is now well bonded in most locations.

Avalanche Problems

Loose Wet

Steep terrain. Low consequence, provided you stay away from terrain traps.

Aspects: North, North East, East.

Elevations: All elevations.

Likelihood: Likely

Expected Size: 1 - 3