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Avalanche Forecast

Archived

Feb 2nd, 2014–Feb 3rd, 2014

Alpine
Natural avalanches unlikely.
Treeline
Natural avalanches unlikely.
Below Treeline
Natural avalanches unlikely.
Alpine
Natural avalanches unlikely.
Treeline
Natural avalanches unlikely.
Below Treeline
Natural avalanches unlikely.
Alpine
Natural avalanches unlikely.
Treeline
Natural avalanches unlikely.
Below Treeline
Natural avalanches unlikely.

Regions

Sea To Sky.

Confidence

Good

Weather Forecast

Tonight and Monday: An arctic ridge is building and is there to stay for a little while. Expect some cloudy periods, light N winds becoming light to moderate from the NE and cold temperatures (-15 C in the alpine).Tuesday: The ridge is gaining more strength spreading more dry and cold weather. Light to moderate NE winds, partly cloudy skies, alpine temperatures around -18 C.Wednesday: More of the same. Mainly clear skies, cold temperatures and light winds from the N.

Avalanche Summary

Several storm slabs size 1 and 2 were reported primarily on N aspects. 

Snowpack Summary

A few cms of recent snow is sitting on a variety of hard surfaces in the alpine from crust on solar aspects to hard windslabs. Also, some pockets of very soft windslabs have developed due to wind transported snow. It has been reported that these windslabs are reactive to skier traffic. At lower elevations, the thin layer of light dry new snow has buried the late January surface hoar at and below treeline. Cold alpine temperatures are facetting the surface snow at higher elevations and lower elevation N aspect shallower snowpack areas is facetted to the ground in some areas. Deeply buried weak layers continue to exist, the recent report of a natural avalanche running to the ground in basal facets on a very steep N facing slope in the alpine is a good sign of this.

Problems

Wind Slabs

Wind Slab avalanches are the release of a cohesive layer of snow (a slab) formed by the wind. Wind typically transports snow from the upwind sides of terrain features and deposits snow on the downwind side. Wind slabs are often smooth and rounded and sometimes sound hollow, and can range from soft to hard. Wind slabs that form over a persistent weak layer (surface hoar, depth hoar, or near-surface facets) may be termed Persistent Slabs or may develop into Persistent Slabs.