Avalanche Forecast Northwest Inland

Date Issued: Valid Until:

Avalanche Canada istorm, Avalanche Canada

Avalanche Forecast

Mon Mar. 11th ยท 5:05PM

Alpine

Danger Ratings Considerable

Treeline

Danger Ratings Considerable

Below Treeline

Danger Ratings Moderate

Problems

Storm Slabs Storm Slabs

Alpine

Danger Ratings Considerable

Treeline

Danger Ratings Moderate

Below Treeline

Danger Ratings Low

Alpine

Danger Ratings Moderate

Treeline

Danger Ratings Moderate

Below Treeline

Danger Ratings Low
The snowpack needs to adjust to it's new snowload. The best, and safest riding will be in wind protected areas.

Confidence

Moderate -

Weather Forecast

MONDAY NIGHT: Snow ending overnight means storm snow accumulations as high as 30 cm. Winds moderate to strong, from the west.TUESDAY: Mix of sun and cloud. Dry. Treeline temperatures -5 to -10 C. Light to moderate winds from the southwest.WEDNESDAY: Mostly sunny. Dry. Treeline temperatures -5 to -10 C. Light westerly winds.THURSDAY: Cloudy. Trace to 5 cm new snow. Treeline temperatures -7 to -3 C. Light to moderate south wind.

Avalanche Summary

No recent avalanche have been reported from this region. However, I expect recent natural storm and wind slab up to size 2.

Snowpack Summary

15 to 30 cm of storm snow accumulations in past 24 hours. Incoming snow will cover previously scoured surfaces and old hard windslabs, as well as sun crusts on solar aspects, and sugary facets pretty much everywhere.February's cold weather weakened the upper- and mid-snowpack. In some sheltered areas, 20-50 cm of previous snow is either faceting or sits on facets (sugary snow), and even possibly surface hoar (feathery crystals).In the south of the region, the lower snowpack is generally strong.

Problems

Storm Slabs

Storm Slabs

Where more than 15 cm of snow accumulates these slabs will likely become reactive, in part because the deeper sugary (faceted) snow below may prove to be the critical weak layer.

Watch for whumpfing, hollow sounds, shooting cracks or recent avalanches.Seek out sheltered areas where the snow is unaffected by wind.Avoid terrain traps where small avalanches can have increased consequences.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood

Likely - Possible

Expected Size

1 - 2.5