Lawinenlagebericht

Jasper

Nov 25 – 26, 2020
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Archiviert · abgelaufen 6 years ago

Lawinengefahr

Thu
Fri
Hochgebirge
3 · Erheblich
Waldgrenze
3 · Erheblich
Unterhalb
2 · Mässig
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Kernpunkte

Highway 93N will have spot closures from parkers summer trail to Saskatchewan glacier parking for avalanche control. Expect delays of 1.5hrs at a time.

Lawinenprobleme

  • Wind Slabs

    • Hochgebirge
    • Waldgrenze
    • Unterhalb der Waldgrenze
    Wahrscheinlichkeit
    Possible - Likely
    Größe
    1–2

    New snow and strong winds will create freshly formed wind slabs in immediate lee's.

  • Persistent Slabs

    • Hochgebirge
    • Waldgrenze
    • Unterhalb der Waldgrenze
    Wahrscheinlichkeit
    Unlikely - Possible
    Größe
    1–2.5

    Pockets of previous wind deposited snow overlies the Nov 4 rain crust. Test results are mixed on this layer but appears to be becoming more reactive with increased loads and continued faceting

Weather Forecast

Tuesday evening and Wednesday morning will bring up to 15cm snow accompanied by moderate to strong Sw winds.

Friday will be the start of another snow storm with snow amounts uncertain

Snowpack Summary

The snowpack is highly variable depending on location. Height of snow at Parkers is ~100cm at treeline. The Nov.4 crust up to 2600m, and is up to 70cm deep. Test results on this crust have shown a mix of mod sudden/resistent planar results. Continued wind slab develop on N and E aspects ridge top down into treeline. Basal layers continue to weaken

Avalanche Summary

No new observations noted or reported today

Confidence

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