New snow overnight and accumulating throughout the day are creating very dangerous avalanche conditions.
Avoid all avalanche terrain. Natural avalanche activity is likely.
30 to 60 cm of snow is forecasted to fall above 1300 m, with hot spots in the Sutton Pass area. This new snow is falling on a robust crust and in sheltered areas a surface hoar layer. Storms slabs will be more reactive where they bury surface hoar.
We expect dangerous avalanche conditions with the incoming forecasted precipitation. Natural avalanche activity is likely, with large avalanches in many areas.
Roughly 30 to 60 cm of snow is expected above 1200 m by the end of day Wednesday. Highest amounts expected in the southwest of the region near Sutton Pass.
This new snow will bury a hard surface crust in most areas and in sheltered terrain a surface hoar layer.
Tuesday Night
Cloudy. 15 to 30 cm of snow above 1200 m. 50 km/h south ridgetop wind. Treeline temperature 1 °C. Freezing level 1400 m.
Wednesday
Cloudy. 15 to 35 cm of snow above 1200m. 50 km/h south ridgetop wind. Treeline temperature 1 °C. Freezing level 1400 m.
Thursday
Cloudy. 15 to 50 mm of rain at treeline. 50 km/h south ridgetop wind. Treeline temperature 3 °C. Freezing level 1800 m.
Friday
Mostly cloudy. 15 to 70 mm of rain at treeline. 50 km/h southwest ridgetop wind. Treeline temperature 4 °C. Freezing level 1900 m.
More details can be found in the Mountain Weather Forecast.
