Lawinenlagebericht

Jasper

Apr 21 – 22, 2016Parks Canada
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Archiviert · abgelaufen 10 years ago

Lawinengefahr

Sat
Sun
Hochgebirge
Keine Stufe
Waldgrenze
Keine Stufe
Unterhalb
Keine Stufe
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Kernpunkte

The heat wave is over!  Heavy rain is expected on Friday.  This will trigger further avalanche activity.  What's on Netflix?

Lawinenprobleme

  • Cornices

    • Hochgebirge
    • Waldgrenze
    • Unterhalb der Waldgrenze
    Wahrscheinlichkeit
    Likely
    Größe
    1–2
    All cornices should be suspect for failure with continuing warm temperatures and rain on Friday.

  • Loose Wet

    • Hochgebirge
    • Waldgrenze
    • Unterhalb der Waldgrenze
    Wahrscheinlichkeit
    Very Likely
    Größe
    1–3
    Warm overnight temperatures, freezing levels up to 3300m and 12mm of rain will keep the snowpack warm.  Continued loose wet avalanches are expected on Friday.

  • Deep Persistent Slabs

    • Hochgebirge
    • Waldgrenze
    • Unterhalb der Waldgrenze
    Wahrscheinlichkeit
    Likely
    Größe
    3–4
    This problem primarily remains on alpine slopes as much of the lower snowpack has either melted or is now isothermal.

Weather Forecast

The heat wave ends!!  The freezing level is expected to drop below 3000 m on Friday afternoon along with 12 mm of rain.  The rain will turn to snow (5 cm) on Friday night.  Seasonal temperatures with showers expected through the weekend.

Snowpack Summary

Isothermal conditions exist well into the alpine even on North aspects due to prolonged +3500m freezing level.  No overnight recovery expected on Thursday night.  The persistent slab problem still exists on north facing alpine slopes.  Expect a very weak snowpack everywhere else.

Avalanche Summary

No recent observations however expecting continued loose wet and wet slab avalanches especially with forecasted rain on Friday.

Confidence

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