Archived

Avalanche Forecast

Feb 3rd, 2013–Feb 4th, 2013

Alpine

3: Considerable

The avalanche danger rating in the alpine will be considerable

Treeline

2: Moderate

The avalanche danger rating at treeline will be moderate

Below Treeline

2: Moderate

The avalanche danger rating below treeline will be moderate

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

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

2: Moderate

The avalanche danger rating at treeline will be moderate

Below Treeline

2: Moderate

The avalanche danger rating below treeline will be moderate

Regions: Glacier.

Weather Forecast

High pressure ridge exiting the region today. Polar front will bring cooler temperatures with light precipitation overnight and into Monday.

Snowpack Summary

Dense settling recent storm snow in top 40cm. A profile at 2210m, SW aspect, 34 degrees showed 240cm of snow. The Jan 4 crust was down 145cm and the Nov 6 crust was decomposing and 28cm from the ground. One test result in the hard range down 38cm.

Avalanche Summary

4 natural slab avalanches size 2.0 to 2.5 east of Rogers Pass summit from two nights ago due to strong winds.1 natural loose avalanche size 2.0 west of the summit yesterday, solar triggered.

Confidence

Intensity of incoming weather systems is uncertain on Tuesday

Avalanche Problems

Wind Slabs

Moderate to strong winds over consecutive nights have produced wind slabs at higher elevations. Pay close attention to changing snow conditions as you travel from sheltered to more exposed areas.

Caution in lee and cross-loaded terrain near ridge crests.

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

Elevations: Alpine.

Likelihood: Possible

Expected Size: 1 - 2