Archived

Avalanche Forecast

Jan 17th, 2019–Jan 18th, 2019

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

4: High

The avalanche danger rating in the alpine will be high

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

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

Regions: Sea To Sky.

A weak storm will pass by Thursday night into Friday, with variable snowfall amounts forecasted across the region. Apply additional caution if you find substantial snow accumulation and slab properties.

Confidence

Moderate - Intensity of incoming weather systems is uncertain

Weather Forecast

THURSDAY NIGHT: Cloudy with light snowfall, accumulation 5 to 15 cm, freezing level 1300 m.FRIDAY: Cloudy with light snowfall, accumulation 5 cm, moderate southwest winds, alpine temperature -6 C, freezing level 1300 m.SATURDAY: Cloudy with snowfall, accumulation 20 to 30 cm, moderate to strong southwest winds, alpine temperature -4 C, freezing level 1300 m.SUNDAY: A mix of sun and clouds, light west winds, alpine temperature -7 C, freezing level 1000 m.

Avalanche Summary

No new avalanches were observed on Thursday. Expect avalanche activity to increase over the weekend as new snow accumulates and forms storm and wind slabs.

Snowpack Summary

New snow will fall onto a sun crust on south aspects, a temperature crust below 1700 m on all aspects, and feathery surface hoar in sheltered and shaded areas at all elevation bands. The new snow may not bond well to these surfaces.Below this, the snowpack is generally well-settled.

Avalanche Problems

Wind Slabs

Variable amounts of new snow are expected for Friday, with associated southwest winds. This snow may not bond well to underlying surfaces. Treat the new snow with caution if enough snow accumulates, particularly if you notice slab properties.

Observe for the bond of the new snow to underlying surfaces.Use caution in lee areas. Recent wind loading has created wind slabs.

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

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 1 - 2