Avalanche forecast

Banff Yoho Kootenay

Feb 17 – 18, 2022
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Avalanche danger

Fri
Sat
Alpine
2 · Moderate
Treeline
1 · Low
Below
1 · Low

Highlights

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

Avalanche problems

  • Wind Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible
    Size
    1–1.5

    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.

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

Regions covered