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Archived

Avalanche Forecast

Apr 3rd, 2024–Apr 4th, 2024
Alpine
3: Considerable
The avalanche danger rating in the alpine will be considerable
Treeline
3: Considerable
The avalanche danger rating at treeline will be considerable
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
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
1: Low
The avalanche danger rating at treeline will be low
Below Treeline
1: Low
The avalanche danger rating below treeline will be low

Regions: Akamina, Crowsnest North, Crowsnest South.

20 to 30 cm of forecast snow and strong wind are expected to form reactive storm slabs, especially in wind affected terrain.

Use small low consequence slopes to test the bond of the new snow.

Confidence

Moderate

Avalanche Summary

Several naturally triggered wet loose avalanches up to size 1.5 were reported on sunny aspects on Tuesday.

Avalanche activity is expected to increase on Thursday with the forecast snow and wind.

Data is limited in this region. Please consider posting your observations to the Mountain Information Network.

Snowpack Summary

20 to 30 cm of forecast snow and strong easterly wind are expected to form reactive storm slabs, especially in wind affected terrain. The new snow overlies a crust on all aspects and elevations.

A persistent weak layer of facets are sitting on top of a second buried crust down 80 to 120 cm. This layer is unlikely to human trigger in areas where a thick crust above the weak layer is present.

Weather Summary

Wednesday Night

Snow, 10 to 15 cm. 30 to 40 km/h east ridgetop wind. Treeline temperature -4° C. Freezing level 1400 m.

Thursday

Snow, 10 to 20 cm. 40 to 50 km/h east ridgetop wind. Treeline temperature -5° C. Freezing level 1500 m.

Friday

Mix of sun and cloud. 20 to 30 km/h east ridgetop wind. Treeline temperature -4° C. Freezing level 1700 m.

Saturday

Cloudy with isolated flurries, 0 to 5 cm snow. 20 to 30 km/h north ridgetop wind. Treeline temperature 0° C. Freezing level 2000 m.

Check out the Mountain Weather Forecast for additional weather information.

Saturday

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Storm slab size and sensitivity to triggering will likely increase through the day.
  • Choose conservative terrain and watch for clues of instability.
  • Look for signs of instability: whumphing, hollow sounds, shooting cracks, and recent avalanches.
  • Use small low consequence slopes to test the bond of the new snow.

Avalanche Problems

Storm Slabs

20 to 30 cm of forecast snow and strong easterly wind are expected to form reactive storm slabs, especially in wind affected terrain.

Aspects: All aspects.

Elevations: All elevations.

Likelihood: Likely

Expected Size: 1 - 2