Bollettino valanghe

Jasper

Apr 18 – 19, 2013Parks Canada
Vedi sulla mappa
Archiviato · scaduto 13 years ago

Pericolo valanghe

Sat
Sun
Alta quota
2 · Moderato
Limite del bosco
1 · Debole
Sotto il limite
1 · Debole
Apri la mappa completa

In sintesi

Daytime warming will increase the probability of cornice failures and avalanches. Ski quality is good with dust on crust. Low elevation crust remaining supportive through the day.

Problemi valanghivi

  • Wind Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Unlikely - Possible
    Dimensione
    1–3
    Isolated pockets of windslab can be found on lee aspects in exposed terrain around ridgecrests. The likelihood of triggering an avalanche increases if it is poorly bonded to temperature crust especially when the day heats up or the sun comes out.

  • Cornices

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Unlikely - Possible
    Dimensione
    2–3
    Cornices are large and a hazard by their sheer mass. They have the potential to trigger deeper layers based on the size of the cornice failure.   

  • Loose Wet

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Possible
    Dimensione
    1–2
    The frequency of moist releases increases with daytime warming and sun particularly on steep solar aspects.

Weather Forecast

Thursday night may see less of an overnight freeze than previous. Expect light snow next few days and a warm Friday followed by a cooler Saturday. Sunday will be mixed clouds. Monday will be sunny and spring conditions.

Snowpack Summary

Isolated windslabs exist on lee aspects of high elevation ridgecrests with a dusting of snow overtop. Buried temperature crusts below 2100m and sun crusts on steep solar aspects at various elevations. Cornices are big. Overall the snowpack is solid underfoot. Below 1800m the snow is getting thinner and melting fast especially South aspects.

Avalanche Summary

No new avalanches observed today. Visibility was excellent. Generally the area is in a stable trend but investigate each slope individually for isolated windslabs before committing.

Confidence

Regioni coperte