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Archived

Avalanche Forecast

Mar 31st, 2023–Apr 1st, 2023
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
1: Low
The avalanche danger rating below treeline will be low
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
1: Low
The avalanche danger rating below treeline will be low
Alpine
3: Considerable
The avalanche danger rating in the alpine will be considerable
Treeline
2: Moderate
The avalanche danger rating at treeline will be moderate
Below Treeline
1: Low
The avalanche danger rating below treeline will be low

Cooler temps, cloud cover, and a trace of new snow will put the spring feeling on hold for the next few days.

Deep persistent slabs may still be reactive to human triggers in shallow snowpack areas.

Confidence

Moderate

Avalanche Summary

No new avalanche activity reported over the past 2 days.

On Tuesday a size 2 avalanche ran in the Churchill North Slide path to tree line.

Don't forget to post avalanche observations to the MIN.

Snowpack Summary

Sun crust at all elevations on solar aspects. Facets on polar aspects with unsupportive pockets in shallow snowpack areas. The middle of the snowpack consists of multiple layers of dense wind-affected snow, sun crust, and facets. Depth hoar and basal facets make up the base of the snowpack. Snow depth varies ranges from 60-170cm.

Weather Summary

Saturday

Cloudy with sunny periods and isolated flurries.

Precipitation: Trace.

Alpine temperature: High -7 °C.

Ridge wind west: 15-35 km/h.

Freezing level at valley bottom.

Sunday

Cloudy with scattered flurries.

Accumulation: 5 cm.

Alpine temperature: Low -11 °C, High -8 °C.

Ridge wind north: 10-25 km/h.

Freezing level at valley bottom.

Monday

Flurries.

Accumulation: 4-8 cm.

Alpine temperature: Low -14 °C, High -7 °C.

Ridge wind light to 15 km/h.

Freezing level at valley bottom.

Terrain and Travel Advice

  • Avoid shallow, rocky areas where the snowpack transitions from thick to thin.

Avalanche Problems

Deep Persistent Slabs

The bottom of the snowpack is inherently weak with well-developed Facets and Depth Hoar. Large triggers like cornices can still initiate this deep persistent slab so be mindful of your overhead hazard and keep in mind that human triggering remains possible in thin snowpack areas.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Unlikely - Possible

Expected Size: 1.5 - 3.5