Avalanche Forecast

Issued: Apr 19th, 2022 4:00PM

The alpine rating is considerable, the treeline rating is considerable, and the below treeline rating is considerable. Known problems include Storm Slabs and Loose Wet.

Avalanche Canada JSmith, Avalanche Canada

40-60 cm of recent snow and moderate southerly winds have formed large storm slabs that are likely to remain reactive to human triggers; especially in wind affected terrain.

 Avoid exposure to overhead avalanche terrain as temperatures increase. 

Summary

Confidence

Moderate - Uncertainty is due to the limited number of field observations.

Weather Forecast

Tuesday night: Clear / Light south wind / Low of -3 / Freezing level 900 m.

Wednesday: Sunny, with increasing cloudiness in afternoon. / Moderate southeast wind / High of 9 / Freezing level 1500 m.

Thursday: Mix of sun and cloud / Light south wind / High of 8 / Freezing level 1400 m.

Friday: Mix of sun and cloud / Light northwest wind / High of 9 / Freezing level 1600 m.

Avalanche Summary

We currently have very limited avalanche observation data from this region.

Human triggered storm slab avalanches remain likely at upper elevations; especially in wind affected terrain.

Please consider posting your observations to the Mountain Information Network (MIN). Photos of current conditions and avalanches are the most helpful. 

Snowpack Summary

40-60 cm of recent snow and moderate southerly winds have formed large storm slabs that are likely to remain reactive to human triggers at all elevations. Expect the storm slabs to be most reactive on lee features at treeline and above.

The recent snow is sitting on a variety of hard snow surfaces, including crusts and wind scoured snow. Below this, there are several crusts in the upper snowpack, but they are unlikely to be a concern in most areas until the next significant warming event.

Terrain and Travel

  • Continue to make conservative terrain choices while the storm snow settles and stabilizes.
  • Be especially cautious as you transition into wind affected terrain.
  • Use small low consequence slopes to test the bond of the new snow.
  • Avoid exposure to overhead avalanche terrain as temperatures increase.
  • Back off slopes as the surface becomes moist or wet with rising temperatures.

Problems

Storm Slabs

An icon showing Storm Slabs

40-60 cm of recent snow and moderate southerly winds have formed large storm slabs that are likely to remain reactive to human triggers; especially in wind affected terrain.

Aspects: All aspects.

Elevations: All elevations.

Likelihood

Possible - Likely

Expected Size

1 - 2.5

Loose Wet

An icon showing Loose Wet

Expect a wet loose natural avalanche cycle to occur when the sun comes out.

Stay well away from any large slopes or avalanche paths that are in the sunshine.

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

Elevations: All elevations.

Likelihood

Likely - Very Likely

Expected Size

1 - 2

Valid until: Apr 20th, 2022 4:00PM