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Archived

Avalanche Forecast

Apr 6th, 2013–Apr 7th, 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
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
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: Kootenay Boundary.

Confidence

Fair - Forecast snowfall amounts are uncertain on Sunday

Weather Forecast

Overnight and Sunday: Moderate precipitation is expected to continue this evening, becoming light convective showers by morning. Temperatures should cool down a few degrees as the precipitation ends.Monday: A ridge of High pressure is expected to start to dry up the region on Monday. There is a chance that a low pressure system that is tracking South of the U.S. border may alter its course and cause enhanced precipitation for the Southeast regions.Tuesday: High pressure is expected to bring mostly clear skies and light winds during the day.

Avalanche Summary

New moist snow point releases are gathering mass and resulting in avalanches up to size 2.0

Snowpack Summary

15-20 cms of moist snow has fallen at higher elevations. New snow is expected to bond well to the old moist or wet surfaces. Some new wind slabs may develop at higher elevations. Surface crusts may have developed before new snow started to fall, providing a sliding layer for the new snow.

Avalanche Problems

Loose Wet

Loose wet snow slides may release naturally from steep terrain at treeline and below. Wet slides in motion may gain a lot of mass as they scour isothermal snowpacks down to the ground.
Watch for wet loose or slab activity with forecast rain and/or warm temperatures.>Avoid travelling on slopes which are becoming wet due to rain, warm temperatures, or sun.>

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 1 - 4

Wind Slabs

New wind slabs may develop as cooling temperatures turn rain into snow at higher elevations. Wind transported snow may over load cornices which have become weak from rain and high freezing levels.
Avoid freshly wind loaded features.>Extra caution needed around cornices with current conditions.>

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

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 1 - 4