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Archived

Avalanche Forecast

Apr 3rd, 2013–Apr 4th, 2013
Alpine
2: Moderate
The avalanche danger rating in the alpine will be moderate
Treeline
2: Moderate
The avalanche danger rating at treeline will be moderate
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
2: Moderate
The avalanche danger rating at treeline will be moderate
Below Treeline
2: Moderate
The avalanche danger rating below treeline will be moderate
Alpine
2: Moderate
The avalanche danger rating in the alpine will be moderate
Treeline
2: Moderate
The avalanche danger rating at treeline will be moderate
Below Treeline
2: Moderate
The avalanche danger rating below treeline will be moderate

Regions: Kootenay Boundary.

Confidence

Fair

Weather Forecast

A moist Pacific system will affect the region from Thursday through Saturday with freezing levels as high as 2200m on Thursday. Winds will be light from the SW, increasing to moderate on Friday with slight cooling and increased precipitation. Expect light rain on Thursday with mixed snow and rain on Friday.

Avalanche Summary

Moist point releases up to size 2 have been observed over the past 5 days.

Snowpack Summary

The top meter of the snowpack is moist up to 1800m. The North aspect remains dry above 2150m.  A rain crust which formed on March 16 is 20 cm below the surface at Kootenay Pass. 

Avalanche Problems

Loose Wet

Loose wet avalanches are a concern with forecast warm temperatures and rain. Small loose releases on steep features may gain significant mass as they slide downhill.
Avoid exposure to terrain traps where the consequences of a small avalanche could be serious.>

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

Elevations: All elevations.

Likelihood: Possible - Likely

Expected Size: 1 - 3

Cornices

Cornice releases of any size may create wet avalanches that run a long way.
Avoid areas with overhead hazard.>Avoid steep slopes below cornices.>

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

Elevations: Alpine, Treeline.

Likelihood: Possible - Likely

Expected Size: 1 - 5