Avalanche Forecast
Issued: Mar 11th, 2021 4:00PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Wind Slabs.
JSmith,
Avalanche Canada
Sheltered, north facing terrain at upper elevations is likely to provide the best riding, but avoid exposure to slopes with large cornices overhead.
Summary
Confidence
High - Confidence is due to a stable weather pattern with little change expected.
Weather Forecast
 Â
THURSDAY NIGHT: Clear / Light, west ridgetop wind / alpine low temperature -13 / Freezing level valley bottom.
FRIDAY: Sunny / Light, west ridgetop wind / alpine high temperature -1 / Freezing level 1600 m.
SATURDAY: Sunny / Light, southwest ridgetop wind / alpine high temperature 2 / Freezing level rapidly rising to 2500 m. and staying elevated overnight.
SUNDAY: Mix of sun and cloud / Light, southwest ridgetop wind / alpine high temperature 3 / Freezing level 2500 m.
Avalanche Summary
No avalanches were reported in this region on Wednesday.
On Tuesday, a small cornice failure triggering a size 2.5 windslab on a east aspect in the alpine was reported. Additionally, several naturally triggered small wet loose avalanches were reported on steep, rocky, sun exposed slopes.
Snowpack Summary
Dry soft snow can be found on shaded aspects above around 1500 m. On south-facing slopes and at lower elevations expect crusty snow in the morning and soft, moist snow in the afternoon. Winds have slackened off as of late, but recent wind slabs and cornices still pose a hazard close to steep ridgelines.
The lower snowpack has strengthened over the past week as previous persistent weak layers have become unreactive. The main layers that we had been tracking were a layer of facets that was buried in mid-February (60-100 cm deep) and a layer of surface hoar and/or a crust that was buried in late January (80-120 cm deep).
Terrain and Travel
- Avoid exposure to slopes that have cornices overhead.
- A moist or wet snow surface, pinwheeling and natural avalanches are all indicators of a weakening snowpack.
- Small avalanches can have serious consequences in extreme terrain. Carefully evaluate your line for wind slab hazard before you commit to it.
- Avoid steep, rocky, and wind effected areas where triggering slabs is more likely.
Problems
Wind Slabs
Lingering wind slabs may remain reactive to human triggers on steep, convex slopes below ridgetops.
Avoid exposure to cornices overhead when the sun is out.
Aspects: All aspects.
Elevations: Alpine.
Likelihood
Expected Size
Valid until: Mar 12th, 2021 4:00PM
