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Archived

Avalanche Forecast

Apr 8th, 2019–Apr 9th, 2019
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.

Prolonged solar input will weaken surface crusts early, plan to finish your trip by early afternoon. Expect challenging skiing below treeline. Watch for windslabs on northerly aspects.

Weather Forecast

Today's forecast calls for cloudy with sunny periods and a trace of precipitation. Alpine high of -1C, a freezing level of 2000m and ridgeline winds light SE. Similar weather in the forecast through to Wednesday.

Snowpack Summary

Pockets of wind slabs at tree line and alpine elevations. The 15cm of recent snow buries a melt freeze crust on all aspects to tree line. Below the crust, the top 50cm is becoming moist during the day, isothermal in thin snowpack areas BTL. Elsewhere the lower snowpack is strong where over 2m.

Avalanche Summary

Cheops 1 slide path produced a size 3 slab initiated by a point release resulting in a long fracture line slab release. No other slides were observed or reported however visibility was not favorable Sunday.

Confidence

Avalanche Problems

Wind Slabs

15cm of recent snow and moderate Southerly winds have created wind slabs in alpine lee features. These slabs sit on a melt-freeze crust and could be sensitive to human triggering. A surface hoar layer may be buried ~20cm on Northerly alpine terrain.
Use caution in lee areas. Recent wind loading has created wind slabs.

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

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 1 - 2.5

Loose Wet

Surface melt-freeze crusts are capping weak isothermal snow in thin snowpack areas BTL. These crusts are also prevalent at tree-line and above on solar aspects. Crusts have been breaking down by mid afternoon from the heat of the day.
Minimize exposure to steep, sun exposed slopes when the solar radiation is strong.Use extra caution on solar slopes or if the snow is moist or wet.

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

Elevations: Below Treeline.

Likelihood: Unlikely - Possible

Expected Size: 1 - 2