Bulletin d’avalanche

Waterton Lakes

Mar 22 – 25, 2022
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Archivé · expiré 5 years ago

Danger d’avalanche

Thu
Fri
Alpin
2 · Modéré
Limite forestière
2 · Modéré
Sous la limite
2 · Modéré

Points saillants

Increased avalanche activity at peak solar will be the primary concern. Pay close attention to the aspect of the slopes you are traveling on and the strength of the sun.

Problèmes avalancheux

  • Wind Slabs

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

    20-50cm windslabs in treeline and alpine lees. Several natural windslab avalanches, size 1-2, were observed Saturday on north and east alpine lees.

  • Loose Wet

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

    Steep rocky solar slopes.

Weather Forecast

Wed: Partially cloudy with alpine temps rising to +4. Winds M-S from the west. FL 2800m

Thur: Partially cloudy with trace precip. Alpine temps around zero. Winds decreasing through the day. FL 2000m

Fri: Partially cloudy with alpine temps around zero. Winds M-SW. FL 2000m

Snowpack Summary

Wind slabs 20-60cm deep at alpine and treeline. Below 2000m is a melt freeze crust of varying thickness. This overlies old windslabs and the March 3 rain crust. Feb 15 crust down 70-120 cm exists up to 2000m. Lower snowpack is well settled 1F to P. HS 250-300 cm near the continental divide.

Avalanche Summary

Numerous natural loose wet avalanches to sz 1.5 were observed this week from steep terrain and rocks at peak solar. Several natural windslab avalanches, sz 1 -2, were observed in alpine lees on the weekend. Please report any observations to the Mountain Information Network

Confidence

Timing or intensity of solar radiation is uncertain

Régions couvertes