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Archived

Avalanche Forecast

Mar 29th, 2019–Mar 30th, 2019
Alpine
1: Low
The avalanche danger rating in the alpine will be low
Treeline
1: Low
The avalanche danger rating at treeline will be low
Below Treeline
1: Low
The avalanche danger rating below treeline will be low
Alpine
1: Low
The avalanche danger rating in the alpine will be low
Treeline
1: Low
The avalanche danger rating at treeline will be low
Below Treeline
1: Low
The avalanche danger rating below treeline will be low
Alpine
1: Low
The avalanche danger rating in the alpine will be low
Treeline
1: Low
The avalanche danger rating at treeline will be low
Below Treeline
2: Moderate
The avalanche danger rating below treeline will be moderate

Regions: Banff Yoho Kootenay.

The main concern right now is daytime heating. Start and finish early to take advantage of the colder temps and reduced avalanche hazard in the mornings. Some lingering concerns for deeper weak layers also exist as we transition to spring conditions.

Weather Forecast

A mix of sun and cloud will bring slightly warmer temperatures and increased solar inputs. Day time highs will reach +7'C at valley bottoms but stay below freezing in the alpine. Forecasted winds are generally light. We currently expect a cooler cloudy day on Sunday.

Snowpack Summary

5-10cm of recent storm snow overlies a supportive melt freeze crust. Some cold North faces and thin areas hold deep facets still. Many areas have a cohesive mid-pack over the basal facets. Lower elevations can become isothermal in the afternoon.

Avalanche Summary

No activity was noted today

Confidence

Avalanche Problems

Loose Wet

Depending where you are, avalanche activity may increase with an increase in solar activity.
Use extra caution on solar slopes or if the snow is moist or wet.Travel early before the heat of the day, and avoid big slopes in the afternoon.

Aspects: South East, South, South West.

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 1 - 1.5

Persistent Slabs

Weak buried facets are still present in many thin areas. On higher N aspects these have not necessarily been impacted much by the recent heat. This is not currently a big concern in most areas but something to keep in mind if entering bigger terrain.
Watch for whumphing, hollow sounds and shooting cracks.

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

Elevations: Alpine.

Likelihood: Unlikely

Expected Size: 1 - 2