Lawinenlagebericht

Northwest Coastal

Jan 15 – 16, 2015Avalanche Canada
Auf der Karte ansehen
Archiviert · abgelaufen 12 years ago

Lawinengefahr

Sat
Sun
Hochgebirge
3 · Erheblich
Waldgrenze
2 · Mässig
Unterhalb
2 · Mässig
Vollständige Karte öffnen

Kernpunkte

The recent snowfall and associated winds have produced numerous large natural avalanches. Conservative terrain choices are essential at this time.

Lawinenprobleme

  • Wind Slabs

    • Hochgebirge
    • Waldgrenze
    • Unterhalb der Waldgrenze
    Wahrscheinlichkeit
    Possible
    Größe
    1–4
    Recent storm snow is being redistributed onto lee slopes and reported to be reactive to rider triggering.

  • Persistent Slabs

    • Hochgebirge
    • Waldgrenze
    • Unterhalb der Waldgrenze
    Wahrscheinlichkeit
    Unlikely - Possible
    Größe
    2–5
    This buried layer is still on the radar and could be reactive with a large enough trigger.

Confidence

Fair - Due to the number and quality of field observations

Weather Forecast

The recent cold front should be out of the region by Friday morning giving a small break before the next pulse of Pacific moisture arrives on Saturday through to Sunday with rain at lower elevations and snow above 800 metres. Freezing level should slowly drop to around 500 metres Thursday night or early Friday morning.

Avalanche Summary

Reports of natural avalanche activity up to size 2 yesterday around1800m on N to NW aspects . Reported to be wind-loaded pockets 20 to 30cm deep and propagating up to 40m wide.

Snowpack Summary

Strong winds have redistributed the recent storm snow into wind slabs, and rain is saturating the surface of the snowpack at treeline and below. Above treeline, a rain crust and a buried surface hoar layer 10-20cm below the surface have been reported. The mid-December crust/facet layer exists throughout the area where it hasn't been wiped out by recent avalanche activity. The November crust near the bottom of the snowpack is generally well bonded but may still be reactive in areas with shallow snowpack.

Abgedeckte Regionen