Rising temperatures could mean that avalanche hazard increases throughout the day. Choose more conservative terrain if significant warming is experienced.
Confidence
Moderate - Freezing levels are uncertain
Weather Forecast
THURSDAY NIGHT - Mainly cloudy / northwest winds, 20-30 km/h / alpine low temperature near -2 / freezing level 900 m / alpine temperature inversionFRIDAY - Mainly cloudy / northwest winds, 20-40 km/h / alpine high temperature near +2 / freezing level 1500 m / alpine temperature inversionSATURDAY - A mix of sun and cloud / north west winds, 20-40 km/h / alpine high temperature near +6 / freezing level 3000 m SUNDAY - A mix of sun and cloud / northwest winds, 40-60 km/h / alpine high temperature near +4 / freezing level 2500 m
Avalanche Summary
Several natural and explosives triggered avalanches to size 2, and one human triggered size 1 avalanche were reported in the region on Wednesday.A few size 1 explosives triggered avalanches were reported in the region on Tuesday.
Snowpack Summary
40-60cm of recent storm snow likely sits on a sun crust on south facing slopes and surface hoar (feathery crystals) in sheltered and shaded areas. The surface hoar is reportedly most prominent at treeline and below. A sun crust likely exists on the surface on south facing slopes at all elevations.
Problems
Persistent Slabs
Persistent Slab avalanches are the release of a cohesive layer of snow (a slab) in the middle to upper snowpack, when the bond to an underlying persistent weak layer breaks. Persistent layers include: surface hoar, depth hoar, near-surface facets, or faceted snow. Persistent weak layers can continue to produce avalanches for days, weeks or even months, making them especially dangerous and tricky. As additional snow and wind events build a thicker slab on top of the persistent weak layer, this avalanche problem may develop into a Deep Persistent Slab.