Lawinenlagebericht

Lizard-Flathead

Feb 10 – 11, 2025Avalanche Canada
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Archiviert · abgelaufen 2 years ago

Lawinengefahr

Wed
Thu
Hochgebirge
2 · Mässig
Waldgrenze
2 · Mässig
Unterhalb
1 · Gering

Kernpunkte

A weak layer of snow is buried 50 to 70 cm deep and is still showing signs of instability.

Large alpine and treeline slopes are still a concern.

Lawinenprobleme

  • Wind Slabs

    • Hochgebirge
    • Waldgrenze
    • Unterhalb der Waldgrenze
    Wahrscheinlichkeit
    Unlikely - Possible
    Größe
    1–2.5

    Wind slabs may now be buried under a few centimetres of snow, watch for signs of instability like whumpfing or shooting cracks, and avoid areas where the surface feels more dense.

  • Persistent Slabs

    • Hochgebirge
    • Waldgrenze
    • Unterhalb der Waldgrenze
    Wahrscheinlichkeit
    Unlikely - Possible
    Größe
    1–3

    Human triggered avalanches are possible anywhere that a slab has formed above a weak layer of surface hoar, facets, and/or crust buried at the end of January about 50 to 70 cm deep.

Confidence

Moderate

Avalanche Summary

  • Saturday: No new avalanches have been reported though, signs of instability continue to be reported in the region,check out this MIN.

  • Friday : A large (size 2) remote triggered avalanche was reported at treeline on a south aspect on a 35 degree slope. A few small wind slab avalanches were reported on east aspects.

  • Thursday: A few large (size 2 to 2.5) natural avalanches were reported on a southeast and east aspects in the alpine.

Snowpack Summary

A dusting of snow now rests above 35 to 50 cm of soft snow, with deeper deposits in wind-loaded areas. Cold temperatures have kept the recent storm snow loose and low density.

Variable wind speeds and directions through the storm and after mean that the extent of wind-affected snow at different aspects and elevations will vary across the region.

The recent snow has not bonded well to the late January drought layer, which includes melt-freeze crusts on sun-exposed slopes, large surface hoar or facets in sheltered areas, and wind-affected snow in exposed terrain at ridgelines.

The lower snowpack is strong and bonded.

Weather Summary

Sunday Night

Partly cloudy with flurries. 20 to 40 km/h northeast ridgetop wind. Treeline temperature -23 °C.

Monday

Sunny. 10 to 20 km/h north ridgetop wind. Treeline temperature -16 °C.

Tuesday

Mostly sunny. 10 to 30 km/h northwest ridgetop wind. Treeline temperature -14 °C.

Wednesday

Mostly sunny. 10 to 30 km/h northwest ridgetop wind. Treeline temperature -15 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Keep in mind that human triggering may persist as natural avalanches taper off.
  • Be careful as you transition into wind-affected terrain.

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