Bollettino valanghe

South Rockies

Avalanche Canada
Vedi sulla mappa

Pericolo valanghe

Sun
Mon
Alta quota
2 · Moderato
Limite del bosco
2 · Moderato
Sotto il limite
1 · Debole
Open full map
Non aggiornato — questo bollettino è scaduto 5 months ago. Stai vedendo condizioni passate, non il bollettino in corso.

In sintesi

Watch for wind slabs as you get up into the alpine.

A weak layer may be buried in the upper snowpack; investigate in your area.

Problemi valanghivi

  • Wind Slabs

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

    Avoid wind-loaded areas. Slabs may still be rider-triggered in steep terrain.

  • Persistent Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Unlikely
    Dimensione
    2–3

    Facets have developed over a crust formed after the atmospheric river. This layer is now buried 50 to 70 cm deep and has been reactive in snowpack tests. This problem is unlikely, but if triggered, it would be a large avalanche.

  • Loose Wet

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Likely
    Dimensione
    1–1.5

    Wet loose avalanches may occur as the temperature rises and the sun hits the new snow for the first time.

Confidence

Moderate

  • We are uncertain about how quickly persistent slabs are gaining strength.

Avalanche Summary

On Thursday, numerous large (size 2) storm slabs were reported. As well as many small wet loose avalanches from slopes in the sun.

Snowpack Summary

10 to 15 cm of new snow buries a crust from strong sun on Tuesday; no new crust is expected on shaded slopes. Soft surface snow is likely to get redistributed into wind slabs in exposed areas.

A crust formed after the atmospheric river in early March is down 50 to 70 cm, and weak facets have been observed over the crust. This layer has been reactive in snowpack tests in the Crowsnest Pass.

Below this, the snowpack is generally well consolidated with facets at the base of the snowpack in shallow areas near Elkford.

Weather Summary

Friday Night
Mostly cloudy. 50 km/h west ridgetop wind. Treeline temperature -4 °C.

Saturday
Cloudy. 40 km/h west ridgetop wind. Treeline temperature -3 °C. Freezing level 2200 m.

Sunday
Mix of sun and clouds. 30 km/h west ridgetop wind. Treeline temperature -2 °C. Freezing level 2600 m.

Monday
Mix of sun and clouds. 30 km/h southwest ridgetop wind. Treeline temperature 1 °C. Freezing level 2800 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Watch for newly formed and reactive wind slabs as you transition into wind-affected terrain.
  • If triggered, wind slabs may step down to deeper layers, causing larger avalanches.
  • Be aware of the potential for large avalanches due to buried weak layers.
  • Avoid sun-exposed slopes, especially if the snow surface is moist or wet.

Regioni coperte