Moderate storm for Sunday. Some increased danger, but manageable with good terrain selection.
Summary
Confidence
Moderate - Forecast snowfall amounts are uncertain
Weather Forecast
Sunday: 10 cm/mm or so of snow/rain depending on elevation. Freezing level expected to be around 1400 m. Winds westerly 40-60 km/h. Monday: mostly dry until the late afternoon/evening. Winds light during the day, but picking up to become strong southwesterly in the afternoon. Monday night/Tuesday: A storm is expected to bring another 10 cm/mm of snow/rain with freezing levels around 1700 m and strong southwesterly winds.
Avalanche Summary
No new avalanches reported. See MIN (Mountain Information Network) posts for avalanche activity during the last storm.
Snowpack Summary
New storm slabs are starting to develop in the alpine as 5-10 cm of new snow arrived on Friday. High freezing levels (around 1800 metres) has settled the upper snowpack and developed variable crusts due to overnight cooling. New surface hoar has been reported from the Coquihalla area, that may be buried down 10-20 cm. Conditions across the region are variable. Most areas have not had a freeze below treeline since the last wet storm. A crust that formed after a warm storm at the end of January is now down 50-80 cm. and it does not appear to "bridge" the early January weak layer in the Duffey lake area. This deeply buried persistent weak layer from early January appears to be isolated to the north of the region, and is now buried down about 50-80 cm. This layer continues to produce sudden results in snowpack tests and has been responsible for recent destructive avalanches.
jfloyer,
Avalanche Canada
