Bulletin d’avalanche

Jasper

Apr 24 – 25, 2022
Voir sur la carte
Archivé · expiré 4 years ago

Danger d’avalanche

Tue
Wed
Alpin
2 · Modéré
Limite forestière
2 · Modéré
Sous la limite
2 · Modéré

Points saillants

Overnight temperatures are not cold the next two nights. The day has the potential to start warm plus could be light rain up to 2400m. Tackle the mountains early and get down early as the hazard increases by the late afternoon.

Problèmes avalancheux

  • Cornices

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible
    Taille
    1–2.5

    Expect a slight increase in the potential for cornice failures the next two days. The overnight freeze is less and freezing levels are rising. They are not typically triggering slopes below yet consider them large triggers and inherently dangerous.

  • Loose Wet

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible - Likely
    Taille
    1–2

    Watch for this problem to increase during the day as temperatures rise and particularly if any solar input occurs. A small initiation can quickly build mass and speed. Consequences could be deadly if it pushes you over a cliff or into a terrain trap.

Weather Forecast

Sunday night will be clouds with clear periods, no new snow, -3C, light Southwest winds, and 1700m freezing level. Monday could bring flurries, 6cm of snow, +1C, light gusting moderate Southwest winds, and 2400m freezing level. Tuesday will be similar to Monday. Wednesday could be scattered flurries, 4cm of snow, and 1900m freezing level.

Snowpack Summary

Thin temperature crust on steep solar aspects and potentially 5-15cm soft snow over previous wind surfaces and crusts more likely found on North aspects. Limited wind redistribution occurred from brief Southwest winds early last week. Several hard crusts in the upper snowpack and a well consolidated mid-pack in deep snowpack areas.

Avalanche Summary

Several loose wet avalanches up to size 1.5 in the zone and with neighbors. Consult the Mountain Information Network for recent observations, and please consider submitting a MIN report if you observe any new activity.

Confidence

Freezing levels are uncertain on Monday

Régions couvertes