Eight millimetres. of rain fell Tuesday afternoon and evening. The mild temperatures and cloud cover overnight prevented any form of a crust recovery.
On most aspects and elevations, the snowpack is generally weak and isothermal. The rainfall has continued to introduce more heat into the snowpack. As the stability of the snowpack gradually decreased with the rainfall, we began to see some natural avalanche activity begin yesterday afternoon. Cooler temperatures above 2,100 metres limited the avalanche activity to slopes below that elevation.
The weather forecast is calling for scattered showers Wednesday, becoming steadier overnight. Falling freezing levels overnight should help to begin to stabilize the snowpack in the Alpine. The rain showers are expected to continue Thursday and Friday as a cool unstable air mass lingers in behind the passage of the frontal system. A weak ridge of high pressure is forecasted to become established on Saturday, bringing a clearing and drying trend for the weekend.
The backcountry avalanche danger is rated as MODERATE.
Conditions may vary and can change rapidly. Check for the most current conditions before heading out into the backcountry. Daily updates for the areas adjacent to Whistler/Blackcomb are available at 604-938-7676, or at www.whistler-blackcomb.com/weather