New snow and strong winds will be building reactive slabs - stick to conservative terrain.
Inland areas that see less than 10 cm of snow may only have MODERATE danger.
New snow combined with southerly winds is expected to form reactive new wind slabs on lee slopes. These slabs may be more reactive where they overlie buried surface hoar.
A weak layer of facets may be found 70 to 200 cm deep. In shallower inland areas, weak depth hoar exists to ground. Avoid steep, rocky, and thin snowpack areas where this layer could be triggered.
No new avalanches have been reported.
With up to 20 cm of new snow and strong winds in the forecast, the danger has been elevated. This means large natural avalanches are possible and human-triggering is likely.
Observations are still limited, so be sure to post yours to the MIN if you get out!
Up to 20 cm of new snow accompanied by strong southerly winds is expected overnight and through Tuesday. The highest snowfall amounts are for the White Pass area, with lesser amounts inland.
A crust with weak surface hoar overtop may be found 15 to 40 cm deep in sheltered areas. Wind slabs may be more reactive where they overlie this layer.
A weak layer of facets is buried 70–200 cm. It remains a concern where the snowpack transitions from thin to thick in White Pass and is the primary issue in shallower inland areas with basal depth hoar.
Monday Night
Cloudy. 1 to 4 cm of snow. 40 km/h south ridgetop wind. Treeline temperature -3 °C.
Tuesday
Cloudy. 5 to 15 cm of snow, with highest amounts for White Pass area. 50 km/h south ridgetop wind. Treeline temperature -2 °C.
Wednesday
Mostly cloudy. 5 to 10 cm of snow. 50 km/h south ridgetop wind. Treeline temperature -2 °C.
Thursday
Mostly cloudy. 3 to 4 mm of precipitation as snow or rain at treeline. 70 km/h southwest ridgetop wind. Treeline temperature 0 °C. Freezing level rising to 1300 m.
More details can be found in the Mountain Weather Forecast.
