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Archived

Avalanche Forecast

Nov 24th, 2024–Nov 25th, 2024
Alpine
3: Considerable
The avalanche danger rating in the alpine will be considerable
Treeline
2: Moderate
The avalanche danger rating at treeline will be moderate
Below Treeline
2: Moderate
The avalanche danger rating below treeline will be moderate
Alpine
3: Considerable
The avalanche danger rating in the alpine will be considerable
Treeline
2: Moderate
The avalanche danger rating at treeline will be moderate
Below Treeline
2: Moderate
The avalanche danger rating below treeline will be moderate
Alpine
3: Considerable
The avalanche danger rating in the alpine will be considerable
Treeline
2: Moderate
The avalanche danger rating at treeline will be moderate
Below Treeline
2: Moderate
The avalanche danger rating below treeline will be moderate

Regions: Akamina, Crowsnest North, Crowsnest South, Flathead, Lizard, Lizard-Flathead, Moyie, St. Mary.

7:20 AM Update: The snowpack may need more time to settle. Stay conservative and watch for overhead hazards. If you go out, consider making a MIN post.

Confidence

Low

Avalanche Summary

On Saturday, several storm slab avalanches were reported. Information is limited but the storm snow is reactive and needs time to bond.

Several large (size 2-2.5) storm slab avalanches occurred in the Lizard Range on Thursday.

If you head out into the backcountry, please submit a MIN. We look at every single one🙌

Snowpack Summary

Recent snowfall amounts are around 50 to 60 cm. In wind-exposed terrain, the new snow has likely stiffened into a slab and may be reactive to riders.The bottom of the snowpack has a crust from early November that is just above the ground. The crust has acted as a bed surface for recent avalanches.Snowpack depth is 100-180 cm at treeline.

Weather Summary

Sunday Night

Cloudy with 5 to 10 cm of snow. 20 to 30 km/h southwest ridgetop wind. Treeline temperature -6 °C.

Monday

Cloudy with 5 to 10 cm of snow. 20 to 30 km/h southwest ridgetop wind. Treeline temperature -5 °C.

Tuesday

Mostly cloudy with up to 5 cm of snow. 20 to 30 km/h west ridgetop wind. Treeline temperature -4 °C.

Wednesday

A mix of sun and cloud with up to 5 cm of snow. 20 to 30 km/h west ridgetop wind. Treeline temperature -5 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Don't let storm day fever lure you into consequential terrain.
  • As the storm slab problem worsens, the easy solution is to choose more conservative terrain.
  • Storm slabs in motion may step down to deeper layers resulting in large avalanches.

Avalanche Problems

Storm Slabs

New snow may need more time to settle and bond. If triggered, this problem may release deep on a hard crust near the base of the snowpack.

Aspects: All aspects.

Elevations: All elevations.

Likelihood: Possible - Likely

Expected Size: 1 - 2.5