Bollettino valanghe

Jasper

Apr 18 – 19, 2021
Vedi sulla mappa
Archiviato · scaduto 5 years ago

Pericolo valanghe

Tue
Wed
Alta quota
Senza grado
Limite del bosco
Senza grado
Sotto il limite
Senza grado

In sintesi

A good overnight freeze will likely make for fast travel on hard crusts early in the day.

Watch for higher amounts of new snow and wind loading if heading up to the icefields.

Problemi valanghivi

  • Cornices

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Possible
    Dimensione
    1.5–3.5

    Cornices are awake! These features are extremely large, dense and heavy and will likely trigger the deeper instability on the slope below. If you must travel near or below cornices, use good travel techniques and group management to reduce exposure.

  • Loose Wet

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

    Colder temps and cloud cover have likely put a lid on this problem in the short term. Watch for it to return if the sun is out, especially TL and below where the snow pack is nearing zero.

  • Deep Persistent Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Unlikely - Possible
    Dimensione
    2–3.5

    Shallow snowpack areas and solar aspects have increased potential for human triggered and natural avalanches stepping to deeper layers.

Weather Forecast

Monday: A mix of sun and cloud. Precipitation: Nil. Alpine temperature: High -2 C. Ridge wind light to 20 km/h. Freezing level: 2100 metres.

Tuesday: A mix of sun and cloud. Precipitation: Nil. Alpine temperature: Low -7 C, High 1 C. Light ridge wind. Freezing level: 2300 metres.

Snowpack Summary

Melt/Freeze crus, possibly over moist or wet snow, all aspects and elevations except north above ~2500m where the snow remained dry. High Alpine (icefields) could have up to 5cm of new snow being redistributed by moderate to strong northerly winds.

Avalanche Summary

Loose wet and wet slabs to ground observed on all aspects up to size 3 throughout the region during the heat wave over the last few days.

Confidence

Regioni coperte