Conditions are hair trigger right now. Any steep enough slope that hasn't avalanched will. It is a good time to stay out of avalanche terrain until the snowpack can adjust to the new load.
Summary
Weather Forecast
We are starting to get into some spring-like weather. Generally sunny skies, freezing levels in the 1000-1600m range and light westerly alpine winds. Winds will pick up from the NW on wed/thurs. Overnight lows will be ~ -5/-10. Watch for solar warming and its destabilizing effect on the snow as the sun is strong these days!
Snowpack Summary
85-100cm of storm snow has fallen in the Sunshine, Kootenay and Yoho areas, with 40-60cm around Lake Louise and Bow Summit since Mar 2nd. This storm snow has overloaded the Feb 10th layer of facets, surface hoar and sun crust, and in thinner snowpack areas, the deeper basal facet layer, causing large, destructive avalanches with wide propagations.
Avalanche Summary
A widespread natural avalanche cycle occurred yesterday on all aspects and elevations and continued today with warmer temperatures and solar input. Bombing today in Kootenay produced
large, destructive avalanches on 29/32 shots. Additionally, 2 large skiier triggered avalanches on
Mt. Fairview and
West bowl show how touchy conditions are right now.
Confidence
Due to the number of field observations