Expect the avalanche hazard to increase throughout the day. Watch for changing conditions as freezing levels rise.
The forecasted precipititation will continue to build reactive storm slabs throughout the day. Strong winds will redistribute new snow into deeper slabs on lee features.
Expect wet loose avalanches to be reactive where precipitation falls as rain.
On Saturday, a large size 2.5–3 avalanche was reported on a southeast face above Nak Bowl, traveling through a terrain trap and continuing down the bowl below. A few small wind slabs and one small wet loose slide from afternoon solar warming were also observed.
Avalanche activity will increase with the forecasted weather.
If you are heading into the backcountry, please share any observations with the Mountain Information Network.
Approximately 60 to 100 cm of snow has accumulated over the past week, burying a widespread crust at treeline and below. In alpine terrain, this crust is likely thin or absent. Periods of strong southwesterly wind have redistributed the new snow in exposed areas at higher elevations.
A crust with facets may exist 100 to 200 cm below the surface, primarily on northerly aspects at higher elevations. This layer appears unreactive but continues to be monitored.
The remaining snowpack appears strong and well-bonded.
Sunday Night
Cloudy. 5 to 10 cm of snow. 60 km/h southwest ridgetop wind. Treeline temperature -5 °C.
Monday
Cloudy. 5 to 15 mm of precipitation as snow or rain at treeline. 70 km/h southwest ridgetop wind. Treeline temperature -1 °C. Freezing level 1700 m.
Tuesday
Mostly cloudy. 10 to 25 mm of rain at treeline. 70 km/h southwest ridgetop wind. Treeline temperature 2 °C. Freezing level 2200 m.
Wednesday
Mostly cloudy. 35 to 65 mm of rain at treeline. 60 km/h southwest ridgetop wind. Treeline temperature 3 °C. Freezing level 2200 m.
More details can be found in the Mountain Weather Forecast.
