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Archived

Avalanche Forecast

Feb 24th, 2017–Feb 25th, 2017
Alpine
2: Moderate
The avalanche danger rating in the alpine will be moderate
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
2: Moderate
The avalanche danger rating in the alpine will be moderate
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
2: Moderate
The avalanche danger rating in the alpine will be moderate
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: Glacier.

Decent skiing/riding conditions are upon us. Standard safe back country travel techniques are always to be used. Avoid cornices, unsupported terrain features, areas where the snowpack is thin or shallow  and terrain traps.

Weather Forecast

A "rex blocker" high pressure system sits off the coast of BC carrying cold air with it from the north. Expect convective flurries today with an alpine high of -12 deg and light winds. A change in the weather pattern is anticipated starting early next week. Precipitation is forecasted to start Tuesday with warming temperatures and increasing winds.

Snowpack Summary

Surface hoar to size 3 was observed yesterday in the Sir Don range. The SH overlies 10-20 cm of recent HST sitting on a variety of surfaces depending on aspect, elevation and drainage. Near the Illecillewaet Glacier we observed a crust to 1900m under the new snow, while on the west side of the park the crust was less prevalent and buried 35cm.

Avalanche Summary

2 size 2- 2.5 slab avalanches occurred yesterday off the north side of Mt. Macdonald in the highway corridor. 1 skier accidental size 1 wind slab was triggered on Glacier Crest. Small sluffs were observed by field teams on Wednesday in steep north aspects at TL, running slow and stopping short.

Confidence

Avalanche Problems

Wind Slabs

Soft wind slabs can be expected along the immediate lee of ridge lines and alpine cross winded features.
Use caution in lee areas. Recent wind loading has created wind slabs.

Aspects: All aspects.

Elevations: Alpine.

Likelihood: Possible

Expected Size: 1 - 2