Avalanche Forecast

High

A naturally triggered size 2 persistent slab that failed on the crust down 80 cm was reported on a northwest aspect at treeline on Monday, but was thought to have occurred on Sunday.

Additionally, several naturally triggered size 1.5 wind slab avalanches were reported on north and east aspects at treeline and above.

Numerous naturally triggered wet loose avalanches up to size 2 were reported on sunny aspects at all elevations.

High freezing levels have formed a surface crust on all aspects and elevations.

30 to 50 cm of snow overlies a crust on all but north facing aspects at treeline and above where a weak layer of surface hoar may be present.

A persistent weak layer of facets are sitting on top of a second buried crust down 80 to 180 cm. This layer is unlikely to human trigger in areas where a thick crust below the recent snow is present.

Tuesday Night

Mostly cloudy with flurries, 5 to 15 cm snow. 30 to 40 km/h southwest ridgetop wind. Treeline temperature 0° C. Freezing level 2000 m.

Wednesday

Mix of sun and cloud with isolated flurries, 0 to 5 cm snow. 10 to 20 km/h west ridgetop wind. Treeline temperature -1° C. Freezing level 1800 m.

Thursday

Cloudy with isolated flurries, 0 to 5 cm snow. 20 to 30 km/h east ridgetop wind. Treeline temperature -2° C. Freezing level 1700 m.

Friday

Mix of sun and cloud with isolated flurries, 0 to 5 cm snow. 10 to 20 km/h east ridgetop wind. Treeline temperature 1° C. Freezing level 2200 m.

Check out the Mountain Weather Forecast for additional weather information.

More details can be found in the Mountain Weather Forecast.

• 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.