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Avalanche Forecast

Dec 2nd, 2019–Dec 3rd, 2019
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
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
1: Low
The avalanche danger rating below treeline will be low

Regions: Cariboos.

New snow accompanied with wind will build and develop storms slabs through the day.

Confidence

Moderate - Uncertainty is due to the track & intensity of the incoming weather system.

Weather Forecast

Monday night: Flurries, up to 10 cm by Tuesday morning. Alpine temperature -10 C, southwest wind 35-50 km/hr

Tuesday: Snow and flurries, 10-30 cm accumulating through the day. Alpine temperature -5 C, southwest wind, 30-55 km/hr.

Wednesday: Cloudy with scattered flurries, up to 5 cm accumulation. Alpine temperature -10 C, west wind 20 gusting to 60 km/hr.

Thursday: Mix of sun and cloud and isolated flurries. Alpine temperature -13 C, southwest wind 10-30 km/hr.

Avalanche Summary

The likelihood of triggering storm slab avalanches will increase through the day as new snow accumulates and is impacted by wind.

Snowpack Summary

Snow and flurries have fallen on a faceted upper snowpack and previously wind-affected surfaces. Below the old wind-affected snow, a layer of surface hoar (feathery crystals) may be found in sheltered areas around treeline. In these areas old, stubborn wind slabs may still be reactive where they overly the weak surface hoar on a crust.

A variety of crusts from late October are buried deeper in the snowpack (down 50-100 cm). 

Avalanche Problems

Storm Slabs

Avalanche danger will rise through the day as new snow accumulates. With increasing winds, expect to find more reactive deposits of storm snow around ridge lines and in wind-loaded areas.

Aspects: All aspects.

Elevations: All elevations.

Likelihood: Possible - Likely

Expected Size: 1 - 2.5