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Avalanche Forecast

Feb 17th, 2013–Feb 18th, 2013
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
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: Sea To Sky.

Confidence

Good

Weather Forecast

Monday:  Freezing Level: 700m, Wind: Lht. S, No significant precip.Tuesday: Freezing Level: 500m in the morning increasing to near 1000m in the afternoon. Wind: Light N/NW, No significant precip.Wednesday: Freezing Level: 250m increasing to 750 in the afternoon. Wind: Light SW.  No significant precip.

Avalanche Summary

On Saturday activity was limited to small size 1 wind slab avalanches in wind exposed terrain near ridgecrest.

Snowpack Summary

Relatively small pockets of wind slab which exist at higher elevations are expected to be mostly unreactive. but may be triggered by skiers in isolated pieces of terrain near ridge crest.  In shaded areas at treeline and below the new snow may overlie surface hoar which is reported to be reactive in the Meager Group (upper Lillooet). Several crusts can be found in the snowpack, especially on solar aspects; however, reports indicate these interfaces have settled out fairly rapidly in most areas. The mid and lower snowpack layers are generally strong and well settled.Total snow depths vary from around 400 cm in the south to around 180 cm in the north.

Avalanche Problems

Wind Slabs

You may find the odd small wind slab in isolated terrain in the Alpine. Watch for triggering in gullies and in the lee of ridge crests too.
Be careful with pockets of wind slab near ridgecrest.>Plan escape routes and identify safe zones before committing to your line.>

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

Elevations: Alpine.

Likelihood: Possible

Expected Size: 1 - 2