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Archived

Avalanche Forecast

Nov 11th, 2018–Nov 12th, 2018
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
Below Threshold
The avalanche danger rating below treeline will be below threshold
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
Below Threshold
The avalanche danger rating below treeline will be below threshold
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
Below Threshold
The avalanche danger rating below treeline will be below threshold

Regions: Glacier.

Hidden rocks and stumps are the main hazards today. Keep an eye out for people above and below you. Rideable terrain is still limited due to minimal snow, therefore people are stacked up on the same ski lines.

Weather Forecast

A mix of sun and cloud today, light ridge-top winds, and freezing levels rising to 1100m. Much the same on Monday but a weak alpine inversion developing, bringing cooler valley temp's and slightly warmer conditions in the alpine. Freezing levels could rise to 1500m, but winds will remain light. The next storm should arrive late Tuesday.

Snowpack Summary

Snow depths vary from 30cm at Rogers Pass, to 130-150cm in alpine areas. Sheltered areas at and above tree-line are holding unconsolidated snow, but pockets of wind-slab exist in immediate lee areas. A melt-freeze crust in the bottom 50cm of the snowpack is an early layer of concern, especially in the alpine on open, planar slopes.

Avalanche Summary

No new avalanches have been observed in the highway corridor nor the Connaught drainage in the last 48 hours.

Confidence

Due to the number of field observations

Avalanche Problems

Wind Slabs

Use caution when entering slopes and on cross-loaded alpine features. Isolated wind slabs may be hidden by the recent 10-15cm of low density storm snow.
Be careful with wind loaded pockets, especially near ridge crests and roll-overs.

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

Elevations: Alpine, Treeline.

Likelihood: Unlikely - Possible

Expected Size: 1 - 2