Avalog
Register
Get forecast notifications
Create an account to receive email notifications when forecasts are published.
Register
Login
Archived

Avalanche Forecast

Feb 1st, 2020–Feb 2nd, 2020
Alpine
5: Extreme
The avalanche danger rating in the alpine will be extreme
Treeline
4: High
The avalanche danger rating at treeline will be high
Below Treeline
4: High
The avalanche danger rating below treeline will be high
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
3: Considerable
The avalanche danger rating below treeline will be considerable
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.

Elevated avalanche danger, avoid all avalanche terrain.

Weather Forecast

Periods of snow with accumulation around 16 cm. Alpine temperature -3 C accompanied by westerly winds strong gusting to extreme (50 km/h gusting to 105 km/h). The freezing level of 1700m. Later today cold air should usher in bringing a rapid drop in temperature and an alpine low temp tonight of -17C

Snowpack Summary

20cm+ storm snow then a shift to rain below 2000m with strong S'ly winds will be destabilizing the upper snowpack. Extreme S'ly winds and snowfall will be forming storm slab well down lee slopes. with The mid and lower snowpack is well settled, our persistent weak layers are being tested by this warm storm.

Avalanche Summary

A widespread natural avalanche cycle is occurring now and should continue until temperatures rapidly cool this afternoon. Highway avalanche control is producing moist slides to size 3.5 running to the bottom of the runouts.

Confidence

Due to the number and quality of field observations

Avalanche Problems

Storm Slabs

Warm storm slabs are failing naturally from precipitation and wind overload. These slides are running to valley bottom.

  • Avoid avalanche terrain, large avalanches may reach the end of run out zones.

Aspects: All aspects.

Elevations: All elevations.

Likelihood: Very Likely - Certain

Expected Size: 1.5 - 3.5

Loose Wet

Freezing levels are 1900m+ with significant rainfall for lower elevations. Loose wet slides should be expected below treeline.

  • Avoid avalanche terrain.

Aspects: All aspects.

Elevations: Treeline, Below Treeline.

Likelihood: Very Likely

Expected Size: 1 - 2.5