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Archived

Avalanche Forecast

Jan 25th, 2018–Jan 26th, 2018
Alpine
3: Considerable
The avalanche danger rating in the alpine will be considerable
Treeline
2: Moderate
The avalanche danger rating at treeline will be moderate
Below Treeline
1: Low
The avalanche danger rating below treeline will be low
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
4: High
The avalanche danger rating in the alpine will be high
Treeline
3: Considerable
The avalanche danger rating at treeline will be considerable
Below Treeline
3: Considerable
The avalanche danger rating below treeline will be considerable

Regions: South Coast.

Recently formed storm slabs may still be reactive to human triggers, especially in wind effected areas at treeline and above.

Confidence

Moderate - Freezing levels are uncertain on Sunday

Weather Forecast

FRIDAY: Cloudy with flurries / Light southwesterly ridgetop winds / Freezing level around 500m.SATURDAY: 10-15 cm of new snow / Moderate southwesterly ridgetop winds / Freezing level rising to around 1000m.SUNDAY: 30-50 cm of new snow / Strong to extreme southwesterly ridgetop winds / Freezing level rapidly rising to around 1800m.

Avalanche Summary

No new avalanches have been reported in this region.

Snowpack Summary

10cm of new snow is being redistributed by moderate southerly ridgetop winds. The reactivity of the new storm slabs is likely to vary greatly depending on elevation/ temperature and orientation to wind. In general, I would expect the touchiest conditions to exist in exposed, higher elevation terrain.

Avalanche Problems

Storm Slabs

Recently formed storm slabs may still be reactive to human triggers, especially in wind effected areas at treeline and above.
Be alert to conditions that change with elevation and time of day.The new snow will need time to settle and stabilize.Avoid all avalanche terrain during periods of heavy loading from new snow, wind, or rain.

Aspects: All aspects.

Elevations: All elevations.

Likelihood: Possible - Likely

Expected Size: 1.5 - 2

Cornices

Large amounts of recent new snow and high winds are creating rapid cornice growth.
Falling cornices may trigger large avalanches on the slopes below.Give cornices a wide berth when travelling on or below ridges.

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

Elevations: Alpine, Treeline.

Likelihood: Possible - Likely

Expected Size: 1 - 2.5