Avalanche forecast

North Columbia

Apr 25 – 26, 2019Avalanche Canada
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Archived · expired 7 years ago

Avalanche danger

Sat
Sun
Alpine
2 · Moderate
Treeline
1 · Low
Below
1 · Low
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Highlights

Lingering wind slabs may still be reactive to human triggers; especially on lee features below alpine ridgetops.

Avalanche problems

  • Wind Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible
    Size
    1–2

    Lingering wind slabs may still be reactive to human triggers; especially on lee features below alpine ridgetops.

  • Loose Wet

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible
    Size
    1–1.5

    Any appearance of the strong April sun can initiate a loose wet avalanche cycle. The likelihood of loose wet avalanches increases as temperatures warm through the day and/or if the sun comes out for a prolonged period of time.

Confidence

Low - Due to the number of field observations

Weather Forecast

THURSDAY NIGHT: Partly cloudy / Light, southwesterly winds / Alpine low -2 C / Freezing level 1500 m.

FRIDAY: Mix of sun and cloud with isolated flurries; 0-3 cm. / Light, northerly winds / Alpine high 2 C / Freezing level 2000 m.

SATURDAY: Cloudy with flurries; 3-5 cm. / Light, northwesterly winds / Alpine high -2 C / Freezing level 1400 m.

SUNDAY: Sunny / Light, northeasterly winds / Alpine high -1 C / Freezing level 1500 m.

Avalanche Summary

No new avalanches were reported in this region on Wednesday. However, there are currently very few professional observers submitting daily observations. Please submit your observations to the MIN. Photos of avalanches or current conditions are particularly useful.

Snowpack Summary

5-15 cm. of new snow sits on a crust everywhere except high north facing terrain. Wind slabs created by last weeks storm may still linger in lee terrain below ridgetops. A layer of surface hoar (weak, feathery crystals) in the upper snowpack could still be reactive to human triggers in isolated locations such as high elevation, north facing terrain.

Below treeline, snow is disappearing rapidly.

Regions covered