Lawinenlagebericht

Blue River

Jan 4 – 5, 2024Avalanche Canada
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Archiviert · abgelaufen 3 years ago

Lawinengefahr

Sat
Sun
Hochgebirge
2 · Mässig
Waldgrenze
2 · Mässig
Unterhalb
1 · Gering
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Kernpunkte

While it is becoming less likely to trigger buried weak layers, if it does happen, the consequences could be severe

Lawinenprobleme

  • Wind Slabs

    • Hochgebirge
    • Waldgrenze
    • Unterhalb der Waldgrenze
    Wahrscheinlichkeit
    Possible - Likely
    Größe
    1–1.5

    New snow accompanied by southerly wind may form small rider triggerable wind slabs.

  • Persistent Slabs

    • Hochgebirge
    • Waldgrenze
    • Unterhalb der Waldgrenze
    Wahrscheinlichkeit
    Unlikely - Possible
    Größe
    1.5–3

    Buried surface hoar is likely becoming harder to trigger, however, consequences remain high if triggered.

  • Deep Persistent Slabs

    • Hochgebirge
    • Waldgrenze
    • Unterhalb der Waldgrenze
    Wahrscheinlichkeit
    Unlikely
    Größe
    2–3.5

    Basal facets remain a concern, particularly in steep, rocky terrain characterized by varying snowpack depths ranging from thin to thick.

Confidence

Moderate

Avalanche Summary

No new avalanches were reported on Tuesday except for some small dry loose avalanches on steep south facing terrain in the Monashees.

Snowpack Summary

A variety of surfaces can be found in the alpine including wind pressed surfaces and a crust on steep south facing slopes. 5 to 10 mm surface hoar exists just below the surface on sheltered terrain.

A layer of surface hoar down roughly 60 to 100 cm remains problematic despite a lack of recent signs of reactivity. A hard crust above this layer is likely protecting it from human-triggering at lower elevations.

Weak basal facets characterize the bottom of the snowpack.

Weather Summary

Wednesday Night

Mostly cloudy with a few centimeters of new snow expected, south alpine wind 15 to 30 km/h, treeline temperature -5°C.

Thursday

Mostly cloudy with up to 5 cm of new snow expected, southwest alpine wind 20 to 40 km/h, treeline temperature -3°C.

Friday

A mix of sun and cloud with around 5 cm of new snow expected, southwest alpine wind 25 to 40 km/h, treeline temperature -7°C.

Saturday

Mostly cloudy with around 10 cm of new snow expected, northeast alpine wind 20 to 40 km/h, treeline temperature -10°C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Avoid steep, rocky, and wind effected areas where triggering slabs is more likely.
  • Keep in mind that human triggering potential persists as natural avalanching tapers off.
  • Uncertainty is best managed through conservative terrain choices at this time.
  • Be carefull around freshly wind loaded features.

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