Avalanche Forecast
Lizard Range and Flathead
If new snow accumulates to 15 cm or more consider the danger rating to be CONSIDERABLE. Storm slabs may be reactive to rider triggers. With limited observations and a variable snowpack use a conservative approach to route selection.
Avalanche Problem 1: Storm Slabs
What Elevation?
Which Slopes?
Chances of Avalanches?
Expected Size?
Travel and Terrain Advice
- Be careful with wind loaded areas, especially near ridge crests and roll-overs.
- If triggered the storm slabs may step down to deeper layers resulting in large avalanches.
Avalanche Summary
On Saturday, explosive control triggered storm slab avalanches up to size 1.5 on northeasterly slopes. Reactive storm slabs and wind affected snow may exist on leeward slopes through the forecast period. Please submit your observations this weekend to the Mountain Information Network. Give info, get info.
Snowpack Summary
Up to 50 cm of accumulated storm snow has fallen on the crust that formed a week ago. The buried crust is supportive and approximately 10 cm thick. It extends from 1600 m to mountain top elevations on all aspects. Lots of uncertainty exists with the new snow sticking to the crust. Winds are likely redistributing the new snow above treeline and possibly forming wind slabs on leeward slopes and terrain features. The average snowpack depth at treeline is 60-80 cm while a deeper snowpack exists in the alpine.
Weather Forecast
Sunday: Mix of sun and cloud with convective flurries up to 5-10 cm. Ridgetop winds light from the North. Freezing levels 800-1200 m and dropping to valley bottom overnight.
Monday: Mostly sunny. Ridgetop winds light from the West. Alpine temperatures near -10 and freezing levels at valley bottom.
Tuesday: Mostly sunny. Ridgetop winds light from the North West. Alpine temperatures near -10 and freezing levels near valley bottom.
Temperature inversions may exist through next week. Check out the Mountain Weather Forecast for more detail.
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Storm slabs may have a poor bond to a buried crust down 30-60 cm and could be reactive to rider triggers. Winds have redistributed the new snow forming thicker slabs on leeward features (N-NE) above 1600 m.