Avalanche forecast

Lizard-Flathead

Feb 15 – 16, 2025Avalanche Canada
View on map
Archived · expired 2 years ago

Avalanche danger

Mon
Tue
Alpine
2 · Moderate
Treeline
2 · Moderate
Below
2 · Moderate

Highlights

Avalanche Danger will be CONSIDERABLE in areas that received more than 20 cm of recent snow.

Start with conservative terrain and watch for signs of instability.

Avalanche problems

  • Persistent Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible
    Size
    1.5–2.5

    Human triggered avalanches are possible where a cohesive slab has formed above a persistent weak layer of surface hoar and/or crust buried 30 to 70 cm deep.

  • Storm Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Likely
    Size
    1–2

    15 to 20 cm of low density new snow combined with moderate northwesterly wind has built fresh storm slabs.

Confidence

Moderate

Avalanche Summary

On Friday, several small size 1 loose dry and storm slab avalanches were triggered by riders in the Lizard Range.

On Thursday, a small naturally triggered wind slab 5 to 15 cm deep was observed in a fan feature in the Lizard Range.

If you head into the backcountry consider submitting a MIN post!

Snowpack Summary

Up to 20 cm of new storm snow is sitting on 30 to 70 cm of faceted old snow overlying a weak layer formed in late January. This weak layer is a crust on sun-exposed slopes and a layer of surface hoar on all other aspects. Exposed terrain in the alpine and treeline is variably wind-affected, creating a stiffer slab above the weak layer. In turn, the stiffer slab may be easier to trigger under the weight of a human. The mid and lower snowpack is generally well settled with no other layers of concern.

Weather Summary

Friday Night

Cloudy with isolated flurries. 10 km/h west ridgetop wind. Treeline temperature -12 °C.

Saturday

Mostly cloudy. 15 km/h west ridgetop wind. Treeline temperature -15 °C.

Sunday

Cloudy with flurries up to 5 cm. 5 km/h southeast ridgetop wind. Treeline temperature -12 °C.

Monday

A mix of sun and clouds. 15 to 20 km/h northeast ridgetop wind. Treeline temperature -15 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Keep your guard up as storm slabs may remain sensitive to human triggering.
  • Storm slabs in motion may step down to deeper layers resulting in large avalanches.
  • Approach steep and open slopes at and below treeline cautiously, as buried surface hoar may exist.
  • Be careful as you transition into wind-affected terrain.

Regions covered