Avalanche Forecast

Issued: Nov 12th, 2021 4:00PM

The alpine rating is below threshold, the treeline rating is below threshold, and the below treeline rating is below threshold. Known problems include Wind Slabs.

Cory Boschman,

Email

Saturday looks like the "Calm before the Storm". A warm weather system will be arriving Saturday night / Sunday morning, and at the time of writing models are predicting anywhere from 30 to 88cm on Sunday and Monday......

Summary

Weather Forecast

Saturday: Mainly cloudy with isolated flurries. Precipitation: Trace. High -7 C. Wind west: 20 km/h gusting to 70 km/h.

Sunday: Snow, heavy at times. Accumulation: 48 cm. Low -8 C, High -1 C. Wind southwest: 20 km/h gusting to 50 km/h.

Monday: Snow, heavy at times. Accumulation: 40 cm. Low -10 C, High -1 C. Wind west: 15 km/h gusting to 45 km/h.

Snowpack Summary

Small amounts of new snow and continuous moderate to strong south west winds have been ongoing for the past week. Alpine and tree-line areas are slowly gaining enough snow for avalanches, particularly in leeward alpine bowls, gullies, and around ridge lines.

Avalanche Summary

There have been isolated reports of smaller wind slabs in alpine features over the past week, but not a lot of people are out in the mountains so take that into account in your decision making.

Confidence

Problems

Wind Slabs

An icon showing Wind Slabs

Although still likely small, these avalanches could have severe consequences in extreme terrain or shallow areas.

  • Use caution in lee areas. Recent wind loading have created wind slabs.
  • Be careful with wind loaded pockets while approaching and climbing ice routes.

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

Elevations: Alpine.

Likelihood

Possible - Likely

Expected Size

1 - 1.5

Valid until: Nov 13th, 2021 4:00PM