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Archived

Avalanche Forecast

Nov 25th, 2014–Nov 26th, 2014
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
Below Threshold
The avalanche danger rating below treeline will be below threshold
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
Below Threshold
The avalanche danger rating below treeline will be below threshold
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
Below Threshold
The avalanche danger rating below treeline will be below threshold

Regions: Sea To Sky.

We have limited observations from the field. Send us yours at [email protected]!

Confidence

Fair - Due to the number of field observations

Weather Forecast

Wet, warm, and windy for the next couple of days before freezing levels plummet for the weekend. Wednesday: 20-40 mm of precipitation with freezing levels as high as 2400 m, and moderate but gusty southwesterly winds. Thursday: another 30-50 mm of precipitation with freezing levels dropping throughout the day to around 1700 m, and moderate but gusty southerly winds. Friday: Unsettled conditions with isolated flurries and sunny breaks, freezing levels in valley bottoms, and light winds.

Avalanche Summary

A few Size 1 skier-triggered storm slab avalanches were reported from the Whistler area over the past couple of days, mostly in the upper treeline and lower alpine elevation band.

Snowpack Summary

Continued snowfall is increasingly burying variable old snow surfaces from last week including weak facets sitting on a crust now down as much as 50 cm at treeline elevations and deeper in the alpine. Initial reports suggest this weakness is most pronounced slopes at upper treeline and lower alpine elevations. However, as we begin our forecasting season, we are working with limited information from the field. Check the bond of the snowpack at this level and take a cautious approach as new snow builds deeper above this layer.

Avalanche Problems

Storm Slabs

New snow, wind, and rain is rapidly loading a weak snow interface from last week.
Be cautious as you transition into wind affected terrain.>Caution around convexities or areas with a thin or variable snowpack.>Avoid exposure to terrain traps where the consequences of a small avalanche could be serious.>

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Possible - Likely

Expected Size: 1 - 4