Bollettino valanghe

Sea To Sky

Jan 12 – 13, 2026Avalanche Canada
Vedi sulla mappa
Archiviato · scaduto 9 months ago

Pericolo valanghe

Wed
Thu
Alta quota
4 · Forte
Limite del bosco
4 · Forte
Sotto il limite
4 · Forte
Apri la mappa completa

In sintesi

Avoid all avalanche terrain.

Very dangerous avalanche conditions have developed with a combination of heavy precipitation and strong winds.

Problemi valanghivi

  • Storm Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Very Likely
    Dimensione
    2–3.5

    Dangerous storm slabs continue to increase in depth and reactivity. Large avalanches may run to the valley bottom.

  • Loose Wet

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Likely
    Dimensione
    1–2

    Rising freezing levels and rain below 1600 m will saturate the most recent snow causing it to lose cohesion. Wet loose avalanche activity will increase as the freezing levels rise through the day.

Confidence

High

  • We are confident the likelihood of avalanche will increase with the arrival of the forecast weather.

Avalanche Summary

On Saturday, numerous human-triggered avalanches up to size 1.5 were reported across the Sea to Sky region. Some observers noted an increase in avalanche size as storm snow accumulated throughout the day.

On Saturday, near Hanging Lake a remotely triggered storm slab was reported. See the MIN report for more details.

With rising freezing levels and heavy precipitation, a rain-on-snow event is expected to produce large, widespread avalanche activity.

Snowpack Summary

Overnight heavy wet snow fell on 40 to 50 cm of recent storm snow. This rain on snow event is likely warming and saturating the upper snowpack over a melt freeze crust from early January.

In some sheltered areas, there is a layer of surface hoar underneath that was buried last weekend. It may become reactive with new load.

The mid-December crust is 100 to 200 cm deep and reaches up to 2200 m. It's well-bonded to the snow above. Above 2200 m, a layer of facets and a crust from November is at the base of the snowpack. These layers are not currently a concern.

Weather Summary

Sunday Night
Cloudy. 40 to 80 cm of heavy wet snow at treeline. 50 km/h southwest ridgetop wind. Treeline temperature 0 °C. Freezing level 1600 m.

Monday
Cloudy. 20 to 30 cm snow above 1900 m. 40 km/h southwest ridgetop wind. Treeline temperature 1 °C. Freezing level 1900 m.

Tuesday
Mostly cloudy. 10 to 30 mm of rain at treeline. 30 km/h southwest ridgetop wind. Treeline temperature 3 °C. Freezing level 2600 m.

Wednesday
Mix of sun and clouds. 3 to 10 mm of rain at treeline. 30 km/h southwest ridgetop wind. Treeline temperature 2 °C. Freezing level 2300 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Avoid avalanche terrain during periods of heavy snowfall.
  • Avoid exposure to overhead avalanche terrain; avalanches may run surprisingly far.
  • Only the most simple non-avalanche terrain with no overhead hazard is appropriate at this time.
  • Keep in mind that the high density of wet avalanches can make them destructive.

Regioni coperte