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Archived

Avalanche Forecast

Apr 14th, 2018–Apr 15th, 2018
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
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
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
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.

Last night's storm brought heavy snow and strong winds.  Use caution transitioning to wind effected terrain.  Take the time to see how the new storm slab is bonding to the surface beneath.

Weather Forecast

Today we'll see a break in the stormy weather after the frontal system passing overnight dumped 20cms with strong to extreme winds. Winds today will be SW 20 kph, gusting 80 with freezing level up to 1700m. The next storm arrives tonight with 10cm forecast and another 20 on the ground by Tuesday

Snowpack Summary

25cm of new snow fell in the last 48 hours with strong to extreme winds. This sits on a supportive crust between 1500-2000m. Below 1500m the crust becomes thin & unsupportive. At higher elevations there is approximately 30-50cm dry snow with isolated wind slabs. The Mar 15 crust complex down 70-90cm on solar aspects.

Avalanche Summary

Avalanche activity has tapered off over the last few days however with the rapid loading and strong winds overnight expect a natural cycle today.

Confidence

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

Avalanche Problems

Storm Slabs

25cm of snow in the last 24hrs with strong to extreme winds has created widespread storm slabs on all aspects at Treeline and in the Alpine. Expect the strong winds to have scoured south aspects & created firm windslabs on North facing slopes.
The new snow will require several days to settle and stabilize.Watch hollow sounds on unsupported windslabs.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Possible - Likely

Expected Size: 1 - 2.5