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Archived

Avalanche Forecast

Mar 19th, 2020–Mar 20th, 2020
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
2: Moderate
The avalanche danger rating below treeline will be moderate
Alpine
2: Moderate
The avalanche danger rating in the alpine will be moderate
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
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

Regions: Jasper.

Consecutive days of day time warming is taking its effect on the snow pack. Watch for prolonged periods of sun on solar aspects later in the day.

Weather Forecast

Tonight: Cloudy, Light West winds and no new precip.

Friday: Partially sunny with Light West winds High -5  freezing levels rising to 1600m

Saturday: Cloudy with isolated flurries, High -14 with moderate West winds

More detailed forecast at: Mountain weather forecast

Snowpack Summary

Snowpack continues to settle due to Diurnal conditions. Scoured from previous winds. Old hard slabs exists in the alpine and open tree line. More confidence in the southern snowpack. Cornices remain an overhead hazard,

The mornings can provide good travel on the melt freeze crust. By early afternoon the crust will start to break down.

Avalanche Summary

No new avalanche activity noted today.

Confidence

The weather pattern is stable

Avalanche Problems

Loose Wet

This problem will increase with day time warming and solar input, Travel early when the snowpack is frozen on solar aspects, and avoid during the heat of the day.

  • Minimize exposure to steep, sun exposed slopes when the solar radiation is strong.
  • Pay attention to sluffing off cliffs and steep solar terrain, signs of a warming snowpack.

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

Elevations: Treeline, Below Treeline.

Likelihood: Likely

Expected Size: 1 - 2.5

Deep Persistent Slabs

This problem will require a large trigger, thin spots or rapid day time warming.

  • Avoid shallow snowpack areas where triggering is more likely.
  • Be aware of the potential for full depth avalanches due to weak layers at the base of the snowpack.

Aspects: All aspects.

Elevations: All elevations.

Likelihood: Unlikely - Possible

Expected Size: 2 - 3.5