Banff Yoho & Kootenay National Park Avalanche Forecast
Issued: Mar 26th, 2022 4:00PM
The alpine rating is Loose Wet., the treeline rating is , and the below treeline rating is Known problems include
A forecasted warming trend Sunday will deteriorate snowpack at lower elevations. Even short period of solar inputs may cause higher than expected reactivity of the loose wet problem.
Minimal re-freeze Saturday night at valley bottom. Freezing levels Sunday are expected to reach 2200m with valley bottom high temps near +8. Light precipe with minimal accumulation and moderate to strong winds are forecasted Sunday. The possibility of solar inputs could deteriorate the snowpack structure at lower elevations quickly.
Surface melt freeze crusts extend high into the alpine on solar aspects. On shady aspects, 10cm of snow from Thursday AM is well settled. Several persistent layers are buried in the snowpack, consisting of crusts and/or facets. These are currently unreactive but may wake up in the future as spring heat starts to penetrate deeper in the snowpack.
No new avalanche observations Saturday. Forecast team observed more evidence of last Wednesdays avalanche cycle.
Less overnight recovery at valley bottom Saturday and a forecasted warming trend Sunday will increase the possibility of a loose wet problem at treeline and below. Even short period of solar inputs may cause a rapid deterioration of the snowpack.
Elevations:Treeline, Below Treeline.
Valid until: Mar 27th, 2022 4:00PM
The latest forecast danger ratings, broken down to elevation. See how an elevation is trending.