Banff Yoho & Kootenay National Park Avalanche Forecast

Issued: Mar 20th, 2021 4:00PM

Sat Mar 20th Current Conditions
Alpine Moderate Treeline Low Below Treeline Low
Sun Mar 21st 2 Day Outlook
Alpine Moderate Treeline Low Below Treeline Low
Mon Mar 22nd 3 Day Outlook
Alpine Low Treeline Low Below Treeline Low

The alpine rating is moderate, the treeline rating is low, and the below treeline rating is low. Known problems include Wind Slabs.

Forecasted cooler temperatures and cloud cover will keep the lower elevation hazard at LOW. This hazard could increase quickly if we receive warmer and sunnier conditions than expected.

Summary

Weather Forecast

Forecasted freezing level will stay near valley bottom till Monday with minimal fluctuating  between daytime highs and overnight lows. Light precipe overnight Saturday could bring snow accumulation of 5cm to the forecast region. Strong westerly winds are expected at ridge top.

Snowpack Summary

5-10 cm of new snow fell Friday with rain below 1800m. The new snow now buries sun crust on steep solar aspects (East to West) into the Alpine, a temperature crust on all aspects below 1800m and Surface hoar up to 10mm located in isolated, shaded areas.

Avalanche Summary

No new avalanches observed or reported today.

Confidence

Problems

Wind Slabs

An icon showing Wind Slabs

Likelihood

Possible

Expected Size

1 - 1.5

Small isolated wind slabs can be found on lee slopes in the alpine. Expected this new slab development to overlay a sun crust on solar aspects.

  • Be careful with wind loaded pockets, especially in steep confined alpine terrain.

Aspects:

North, North East, East.

Elevations:

Alpine.

Valid until: Mar 21st, 2021 4:00PM

Forecast Trend

The latest forecast danger ratings, broken down to elevation. See how an elevation is trending.