Over 70 cm of snow has fallen in the past 72 hours, accompanied by strong southwest winds. Human-triggered avalanches remain a concern as the storm snow continues to settle.
Use caution near ridgetop, on leeward slopes and on cross-loaded features.
A stormy week with periods of intense snowfall has formed a widespread storm slab with variable reactivity. Avoid exposing yourself to overhead hazard and give the new snow time settle.
A natural sz 3 avalanche from Mt. Tupper was observed in motion as the sun poked out Thursday. This large avalanche ran right to valley bottom and the powder cloud crossed the valley.
On Wednesday evening a widespread natural avalanche cycle occurred with size 2-3 avalanches running to valley bottom.
Avalanche control using explosives in the highway corridor produced numerous size 2-3.5 avalanches. These avalanches were running fast and travelled further then expected
Up to 135cm of snow has fallen over the last week with periods of strong to extreme southwesterly wind. This has created a thick storm slab which will need time to settle.
Areas sheltered from the wind may have a layer of surface hoar buried around 100cm deep.
An increase in wind and temps as the next wave of snow arrives this weekend.
Tonight Trace precip. Low -8°C. West winds 15-35km/hr. FZL (freezing level) 1200m.
Fri 10cm. High -6°C. West winds 15-45km/hr. FZL (freezing level) 1300m.
Sat 6cm. High 0°C. SW winds 25-55km/hr. FZL (freezing level) 1700m.
Sun 18cm. High -1°C. SW winds 30-60km/hr. FZL (freezing level) 1600m.
