Avalanche Forecast

Issued: Apr 2nd, 2019 3:55PM

The alpine rating is low, the treeline rating is low, and the below treeline rating is low. Known problems include Loose Wet.

Avalanche Canada dsaly, Avalanche Canada

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Minimize exposure to steep slopes as temperatures warm through the day, especially in areas with fresh snow.

Summary

Confidence

Moderate -

Weather Forecast

TUESDAY NIGHT - Cloudy with clear breaks / light southeast wind / alpine low temperature near 0 / freezing level valley bottomWEDNESDAY - Cloudy with isolated flurries, trace to 7 cm accumulation / southwest wind, 25 gusting to 45 km/h / alpine high temperature near 0 / freezing level 2000 m THURSDAY - Cloudy with sunny breaks and isolated flurries, trace accumulation / west wind, 15-40 km/h / alpine high temperature near +1 / freezing level 2000 m FRIDAY - Cloudy with isolated flurries, trace to 10 cm accumulation / light southwest wind, gusting to 55 km/h / alpine high temperature near +1 / freezing level 2100 m

Avalanche Summary

If the sun comes out for prolonged periods of time or as temperatures rise, the chances of loose avalanches will increase, especially in areas with fresh snow.On Monday, small (small 1-1.5) loose-dry and loose-wet avalanches were reported with the accumulated snowfall as well as two small (size 1-1.5) storm slab avalanches triggered with explosives. On Tuesday, snowballing was observed in alpine terrain.

Snowpack Summary

About 5 cm recent snow overlies a thick crust on most aspects and elevations. On north-facing, alpine terrain, up to 20 cm recent snow is bonding well to a cold, dry snowpack. Lower down in the snowpack, the base is composed of weak facets (sugary snow). In areas that remained more sheltered from the heat (like north-alpine), human triggering of persistent slabs on this layer may still be possible; especially in rocky alpine terrain with a shallow or highly variable depth snowpack.The snowpack on sun-exposed slopes in the alpine and all aspects at treeline and below may become moist or wet during the heat of the day, especially if the sun comes out. With spring conditions, the avalanche hazard will fluctuate greatly depending on the strength of the overnight freeze and how quickly the snowpack is warmed up each day.

Problems

Loose Wet

An icon showing Loose Wet
Sunshine and air temperatures above 0 C can rapidly increase the likelihood of triggering loose wet avalanches, especially in areas with fresh snow.
Cornices become weak with daytime heating, travel early on exposed slopes.Avoid sun exposed slopes when the solar radiation is strong, especially if the snow is moist or wet.Avoid terrain traps such as cliffs and gullies that increase the consequence of small avalanches.

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

Elevations: All elevations.

Likelihood

Possible - Likely

Expected Size

1 - 1.5

Valid until: Apr 3rd, 2019 2:00PM

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