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Archived

Avalanche Forecast

Apr 25th, 2018–Apr 26th, 2018
Alpine
Below Threshold
The avalanche danger rating in the alpine will be below threshold
Treeline
Below Threshold
The avalanche danger rating at treeline will be below threshold
Below Treeline
Below Threshold
The avalanche danger rating below treeline will be below threshold
Alpine
Below Threshold
The avalanche danger rating in the alpine will be below threshold
Treeline
Below Threshold
The avalanche danger rating at treeline will be below threshold
Below Treeline
Below Threshold
The avalanche danger rating below treeline will be below threshold
Alpine
Below Threshold
The avalanche danger rating in the alpine will be below threshold
Treeline
Below Threshold
The avalanche danger rating at treeline will be below threshold
Below Treeline
Below Threshold
The avalanche danger rating below treeline will be below threshold

Regions: Glacier.

Weather Forecast

Mainly sunny today, we might see a few clouds this afternoon. Alpine high of +2, FL will rise to 2500m, winds will be light from the N-NW. Temperatures will rise even higher over the next 2 days as the ridge of high pressure dominates southern BC. The next pulse of precipitation will be on Sat, as a low-pressure system moves in from the SE.

Snowpack Summary

Typical spring melt freeze conditions. This morning we had a minimal recovery with temperatures just below zero at Valley bottom and likely less of a recovery higher with an overnight inversion. There may be some dry snow on North aspects above 2400m. Cornices are large and will weaken with the rising temperatures.

Avalanche Summary

Numerous solar triggered avalanches, mostly in the size 2.5 range with some notables up to 3.5, generally loose wet in character. The notables were Junction East size 3.5, Puff daddy and Camp West size 2.5. Two older notables are Catamount peak size 3 persistent slab and mounds was a glide avalanche and ran size 3.5. Start early, finish early!!!

Confidence

Avalanche Problems

Loose Wet

Loose wet avalanches can be expected off of solar aspects as daytime warming and direct sunshine destabilize surface layers. These avalanches may step down, triggering persistent and or deep persistent weak layers. Activity will spike later this week
Plan to finish your tour early.Minimize exposure to steep, sun exposed slopes when the solar radiation is strong.

Aspects: All aspects.

Elevations: All elevations.

Likelihood: Likely - Very Likely

Expected Size: 1 - 3

Cornices

Cornices are large and ripe. They will become more prone to failure with daytime warming and solar input.
Avoid travel on slopes that are exposed to cornices overhead.

Aspects: All aspects.

Elevations: Alpine.

Likelihood: Possible

Expected Size: 2 - 3