Confidence
Poor - Timing, track, or intensity of incoming weather is uncertain on Sunday
Weather Forecast
Overnight and Sunday: Light Westerly winds with cooling temperatures overnight. Light snow fall is expected to begin Sunday evening. There is a chance of enhanced snowfall amounts up to 10 cms depending on the track of the system moving across the US border.Monday: Northwest winds are expected to start to build during the day as a warm front moves in from the NW. Freezing levels are expected to rise to about 1600 metres. Snow should start in the evening and continue as a trailing cold front follows.Tuesday: Continued unsettled weather with light snow and light Northwest winds. Alpine temperatures dropping to about -19.0
Avalanche Summary
No new avalanches reported.
Snowpack Summary
There is a lot of variability in the recent storm snow amounts and the amount of wind effect across the region. The Harvey Pass area has seen a lot of wind. Thin stiff wind slabs have formed, and fetch areas have been stripped. The Crossing Creek area has seen less wind and about 20 cms of new snow. It was snowing all day Friday, so we expect the storm snow to continue to accumulate. The storm snow has not been reported to be reacting as a cohesive slab.
Problems
Storm Slabs
Storm Slab avalanches are the release of a cohesive layer (a slab) of new snow that breaks within new snow or on the old snow surface. Storm-slabs typically last between a few hours and few days (following snowfall). Storm-slabs that form over a persistent weak layer (surface hoar, depth hoar, or near-surface facets) may be termed Persistent Slabs or may develop into Persistent Slabs.