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Archived

Avalanche Forecast

Feb 16th, 2022–Feb 17th, 2022
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
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
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
1: Low
The avalanche danger rating below treeline will be low

Regions: Banff Yoho Kootenay.

Forecasts are calling for snow and wind with highest amounts expected in the northern and western areas! If this materializes we expect to see an incremental rise in the danger rating over the next few days

Weather Forecast

The drought is ending with a NW flow bringing increased winds and snow. We can expect alpine winds to increase to strong overnight Wednesday with light precip starting. Expecting 5-10 cm on Thursday, with an additional 5-10 cm Friday and Saturday. Highest amounts will be in northern and western areas. Freezing levels expected to reach ~ 1400m

Snowpack Summary

Up to 5 cm of new snow sits on a variety of surfaces: wind effect in exposed alpine/treeline areas, sun crusts on solar slopes, and a thin temperature crust below 1600m.The Jan 30th surface hoar/ sun crust interface exists 20-30 cm below the surface and hasn't produced avalanches recently.  Shallow snowpack areas remain weak and faceted

Avalanche Summary

No new avalanche activity observed or reported.

Confidence

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

Avalanche Problems

Wind Slabs

Increasing winds and forecasted snow may create new windslabs in lee alpine terrain. These will be small at first, but may not bond well to the hard surfaces underneath.

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

Elevations: Alpine.

Likelihood: Possible

Expected Size: 1 - 1.5