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

Avalanche Forecast

Dec 2nd, 2019–Dec 3rd, 2019
Alpine
2: Moderate
The avalanche danger rating in the alpine will be moderate
Treeline
1: Low
The avalanche danger rating at treeline will be low
Below Treeline
1: Low
The avalanche danger rating below treeline will be low
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
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: Glacier.

Hazard may increase throughout the day if the incoming storm arrives earlier than forecast.

Keep an eye for changing conditions today.

Weather Forecast

Today: A mix of sun and cloud with isolated flurries. Freezing level 800m. Moderate SW winds.

Tonight: We move into an unsettled westerly flow. 7 cm forecast with moderate SW winds. Freezing level steady at 800m

Tuesday: Storm continues with another 14 cm forecast with continued moderate SW winds.

Sunset time is currently 15:50hrs, plan accordingly.

Snowpack Summary

8cm of snow overnight covers a facetted upper snowpack and previously wind affected surfaces. The main layer to watch (Nov 23rd surface hoar/ crust) is buried 25-45cm. This layer exists as a crust on all aspects below 1600m and on steep solar aspects into the alpine; surface hoar around treeline.

Avalanche Summary

Artillery verification shoot yesterday produced no results in steep, north alpine start zones. No new avalanches reported from the highway or the backcountry in the last 5 days.

Confidence

Timing, track, or intensity of incoming weather system is uncertain

Avalanche Problems

Persistent Slabs

A weak layer is down 25-45cm. It consists of surface hoar at treeline and below, and a crust on steep solar aspects into the alpine. Cold temps appear to have decreased slab properties in the upper snowpack, but this layer should not be discounted.

  • Dig down to find and test weak layers before committing to a line.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Unlikely - Possible

Expected Size: 1 - 2.5