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Avalanche Forecast

Mar 29th, 2017–Mar 30th, 2017
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
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.

With the sun potentially coming out for an extended period of time on Thursday, expect storm slabs to be reactive at upper elevations

Confidence

Moderate - Timing or intensity of solar radiation is uncertain on Thursday

Weather Forecast

THURSDAY: Cloudy with sunny periods / Light north wind / Alpine temperature -1 / Freezing level 1000mFRIDAY: Mainly cloudy / Light west wind / Alpine temperature -1 / Freezing level 1100mSATURDAY: Isolated flurries / Light west wind / Alpine temperature 2 / Freezing level 1400m

Avalanche Summary

On Thursday expect reactive storm and wind slab avalanches in the alpine and tree line elevation bands where the recent precipitation has fallen as snow. Below tree line expect small loose snow avalanches where rain has soaked the snowpack.

Snowpack Summary

The last 48 hours has seen very heavy amounts of precipitation. The freezing level hovered around tree line during that time. Reports from the region have been few and far between, however it can be expected that 70-100cm of snow has fallen at upper elevations. The new snow would have been redistributed by moderate to strong southwest wind and is sitting on a well settled lower snowpack. Rain below tree line has soaked an already moist and/or wet lower snowpack.

Avalanche Problems

Storm Slabs

Recent moderate to strong wind and heavy precipitation has formed storm slabs that increase in depth and reactivity with elevation. Expect deeper slabs and touchier conditions on the lee side of wind exposed terrain features.
Be increasingly cautious as you transition into wind affected terrain.The new snow will require several days to settle and stabilize.Minimize exposure to steep, sun exposed slopes when the solar radiation is strong.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Possible - Likely

Expected Size: 1 - 3

Loose Wet

With the potential of extended sun exposure on Thursday, expect the snow surface to stay wet below tree line
Avoid exposure to terrain traps where the consequences of a small avalanche could be serious.

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

Elevations: Alpine.

Likelihood: Possible

Expected Size: 1 - 2