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Archived

Avalanche Forecast

Apr 3rd, 2024–Apr 4th, 2024
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
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

Regions: Dogtooth, East Purcell, Purcells, West Purcell.

Forecast snow may form small wind slabs on lee features below alpine ridgetops.

Avoid steep, rocky, and wind effected areas where triggering slabs is more likely.

Confidence

Moderate

Avalanche Summary

A couple of naturally triggered wet slab avalanches up to size 2 were reported on sunny aspects on Tuesday.

Snowpack Summary

5 to 15 cm of forecast snow may form small wind slabs on lee features below alpine ridgetops. The new snow overlies a crust on all aspects and elevations.

A widespread crust with facets above is down 60 to 110 cm. This layer is unlikely to human trigger in areas where a thick crust above the weak layer is present.

Weather Summary

Wednesday Night

Mostly cloudy. 10 to 20 km/h east ridgetop wind. Treeline temperature -5° C. Freezing level 1100 m.

Thursday

Cloudy with isolated flurries, 5 to 15 cm. 10 to 20 km/h east ridgetop wind. Treeline temperature -3° C. Freezing level 1700 m.

Friday

Mix of sun and cloud with isolated flurries, 0 to 3 cm. 10 to 20 km/h east ridgetop wind. Treeline temperature 0° C. Freezing level 2100 m.

Saturday

Mostly cloudy with isolated flurries, 0 to 3 cm snow. 10 to 20 km/h northwest ridgetop wind. Treeline temperature -1° C. Freezing level 2000 m.

Check out the Mountain Weather Forecast for additional weather information.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Watch for newly formed and reactive wind slabs as you transition into wind affected terrain.
  • Avoid steep, rocky, and wind effected areas where triggering slabs is more likely.
  • When a thick, melt-freeze surface crust is present, avalanche activity is unlikely.

Avalanche Problems

Wind Slabs

5 to 15 cm of forecast snow may form small wind slabs below alpine ridgetops.

Aspects: All aspects.

Elevations: Alpine.

Likelihood: Unlikely - Possible

Expected Size: 1 - 1.5