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Archived

Avalanche Forecast

Nov 30th, 2018–Dec 1st, 2018
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
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
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: South Coast.

We're working from very few observations. While dirt has reappeared at lower elevations, it is very much winter in the alpine where cornices and wind slabs may remain problematic this weekend. Please let us know what you're seeing on the MIN!

Confidence

Low - Due to the number of field observations

Weather Forecast

We are transitioning into a period of pronounced high pressure. The forecast period is marked by cooler temps, clear skies and no significant precipitation, even in the extended forecast.FRIDAY NIGHT: Freezing level around 1100 m, light southerly wind, a trace of snow possible. SATURDAY: A few clouds, freezing level around 1200 m, light northeast wind, no significant precipitation expected.SUNDAY: Clear skies, freezing level around 800 m, light northeast wind, no significant precipitation expected.MONDAY: Clear skies, freezing level around 800 m, light east wind, no significant precipitation expected.

Avalanche Summary

No avalanches have been reported. Please submit any observations you have to the Mountain Information Network here.

Snowpack Summary

Monday and Tuesday's storm produced over 200 mm of precipitation that mostly fell as rain. Winds were extreme out of the south/southwest. Cornices and wind slabs are likely widespread now.A MIN from Friday suggests that it's skiable from 1600 m on up. Between 1600 and 2000 m there is 5 to 10 cm of low density snow over a 5 cm breakable crust. Above 2000m is reportedly skiing well.  Alpine depths are approaching 175 cm.  Near the ground there is a crust/facet interface, little is known about the reactivity of this layer. It is thought that there is insufficient snow for avalanches below 1500 m.

Avalanche Problems

Cornices

Cornices have likely formed on alpine ridgelines. Cornices are typically most prone to failure during times of transition. Now is one of those times as we enter a colder period.
Stay well back from cornices when traveling on ridgelines.Extra caution needed around cornices with current conditions.Be wary of traveling on slopes that are exposed to cornices overhead.

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

Elevations: Alpine.

Likelihood: Possible

Expected Size: 1 - 2

Wind Slabs

If there's any good riding/travel to be had, it's going to be in the alpine. This is also where you're most likely to find wind slabs that may be sensitive to human triggering.
Be cautious as you transition into wind affected terrain.The deepest slabs will be found immediately lee of ridge-crest.Be cautious around mid-slope terrain features like ridges and ribs where slabs may be deeper.

Aspects: All aspects.

Elevations: Alpine.

Likelihood: Possible

Expected Size: 1 - 2