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Archived

Avalanche Forecast

May 2nd, 2024–May 5th, 2024
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
Below Threshold
The avalanche danger rating below treeline will be below threshold
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
Below Threshold
The avalanche danger rating below treeline will be below threshold
Alpine
3: Considerable
The avalanche danger rating in the alpine will be considerable
Treeline
Below Threshold
The avalanche danger rating at treeline will be below threshold
Below Treeline
Below Threshold
The avalanche danger rating below treeline will be below threshold

Regions: Brazeau, Churchill, Cirrus-Wilson, Fryatt, Icefields, Jasper, Maligne, Marmot, Miette Lake, Pyramid.

Read the Avalanche Canada Forecasters Blog for resources on how to navigate the switch to spring. It is important to monitor each nights freeze and relate it to the timing and degree in which how quickly the snowpack will destabilize.

Confidence

Moderate

Avalanche Summary

Thursday's Maligne patrol noted numerous loose wet and dry size 1.5 on the steep alpine rock slabs along Medicine lake. Nothing of significance was observed on Wednesday's Maligne and Icefield patrols but visibility was very poor. Monday noted no new activity.

Snowpack Summary

Wednesday's snowfall amounts varied with Maligne receiving 30cm and Icefield's 5-10cm. Some of the snow is being redistributed by alpine ridgetop winds. The recent snow covers a cornucopia of crusts extending up to 2600m, on all aspects, and to ridgetop particularly on solar aspects.

Weather Summary

Mountain Weather Forecast is available at Avalanche Canada

Friday is predicted to bring sun, cloud, 3 °C, light winds, and 2500m freezing level. The prognosis for Saturday is similar to Friday except will be 6 °C and 2800m freezing level. Sunday's forecast is sun, isolated showers, warmer, and 3100m freezing level.

Terrain and Travel Advice

  • Extra caution for areas experiencing rapidly warming temperatures for the first time.

Avalanche Problems

Wind Slabs

Recent snow and wind has formed isolated windslabs in lee areas at ridgetop in the alpine. The winds have been very variable so assess for loading in the not-so-normal locations.

Aspects: All aspects.

Elevations: Alpine.

Likelihood: Possible - Likely

Expected Size: 1 - 2

Loose Wet

Rising temperatures and sun the next few days in combination with the recent snowfall will increase the problem's potential. Be aware of the potential for loose wet or dry avalanches in steep terrain where snow hasn't bonded.

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

Elevations: Alpine, Treeline.

Likelihood: Possible - Likely

Expected Size: 1 - 1.5