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Archived

Avalanche Forecast

Apr 6th, 2024–Apr 7th, 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
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

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

Recent snow and wind have developed isolated wind slabs at treeline and above. As you transition into open terrain, look for signs of instability, like shooting cracks.

Confidence

High

Avalanche Summary

Several small explosive-triggered wind slabs and size 1 to 1.5 wet loose from steep solars on Friday.

On Thursday, a few size 1 skier-triggered wind slab avalanches were reported in the Golden area.

Even short windows of sun coupled with rising freezing levels may initiate wet, loose avalanches on steep solar-facing slopes.

Snowpack Summary

Roughly 20 to 25 cm of accumulated new snow is settling and could become moist on steep south-facing slopes. This new snow overlies a crust on all aspects and elevations that are more robust on solar-facing slopes.

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

Saturday Night

Partly cloudy, isolated flurries, 1 to 3 cm. 5 to 10 km/h west ridgetop wind. Treeline temperature -4° C.

Sunday

Mainly cloudy, isolated flurries 1 to 2 cm. 10 to 15 km/h northwest ridgetop wind. Treeline temperature -5° C. Freezing level 1700 m.

Monday

Partly cloudy, with trace accumulations, 10 to 15 km/h southwest winds. Treeline temperatures -2° C. Freezing levels 1800 m.

Tuesday

Partly cloudy with isolated flurries 2 to 3 cm, 20 to 30 km/h southwest wind. Treeline temperatures -2° C, Freezing levels 1800 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Carefully evaluate steep lines for wind slabs.
  • Wind slabs may be poorly bonded to the underlying crust.

Avalanche Problems

Wind Slabs

New snow and variable winds have developed isolated wind slabs at treeline and above. These wind slabs are most likely found directly lee of high points and ridge features.

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

Elevations: Alpine, Treeline.

Likelihood: Unlikely

Expected Size: 1 - 1.5