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Avalanche Forecast

Jan 11th, 2014–Jan 12th, 2014
Alpine
3: Considerable
The avalanche danger rating in the alpine will be considerable
Treeline
3: Considerable
The avalanche danger rating at treeline will be considerable
Below Treeline
2: Moderate
The avalanche danger rating below treeline will be moderate
Alpine
3: Considerable
The avalanche danger rating in the alpine will be considerable
Treeline
3: Considerable
The avalanche danger rating at treeline will be considerable
Below Treeline
2: Moderate
The avalanche danger rating below treeline will be moderate
Alpine
3: Considerable
The avalanche danger rating in the alpine will be considerable
Treeline
3: Considerable
The avalanche danger rating at treeline will be considerable
Below Treeline
1: Low
The avalanche danger rating below treeline will be low

Regions: Northwest Inland.

Confidence

Fair

Weather Forecast

Tonight and Sunday: Light to locally moderate snowfall / Moderate to extreme southwest winds / Freezing level at 1100mMonday: Cloudy with flurries / Strong to extreme southwest winds / Freezing levels 900mTuesday: Moderate snow and rain / Strong to extreme southwest winds / Freezing levels 1700m

Avalanche Summary

No new avalanches reported.

Snowpack Summary

A recent profile from 1400m elevation on a Northwest aspect in the Hankin area shows the height of snow to be about 155 cm.10-20cm of new snow now overlies heavily wind-affected surfaces at upper elevations and well developed surface hoar at mid-treeline and below. The mid and lower snowpack are found to be generally gaining strength with depth until the bottom 20-40cm where weak faceted crystals exist down to the ground.

Avalanche Problems

Storm Slabs

Forecast accumulations will add to a developing storm slab. Watch for increased reactivity in wind-affected terrain or in areas where buried surface hoar exists.
Be cautious as you transition into wind affected terrain.>Avoid open slopes and convex rolls at and below treeline where buried surface hoar may be preserved.>

Aspects: All aspects.

Elevations: All elevations.

Likelihood: Possible - Likely

Expected Size: 1 - 2

Persistent Slabs

Triggering a persistent weakness could have nasty consequences. Avoid thin spots, cross-loaded slopes or unsupported terrain.
Avoid thin, rocky or sparsely-treed slopes.>Be aware of the potential for full depth avalanches due to deeply buried weak layers.>

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 2 - 4