Avalanche forecast

Northwest Inland

Jan 28 – 29, 2012Avalanche Canada
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Archived · expired 15 years ago

Avalanche danger

Mon
Tue
Alpine
4 · High
Treeline
3 · Considerable
Below
3 · Considerable

Highlights

This forecast is based on very limited observations from the field. You can help! Tell us what you are seeing: [email protected]

Avalanche problems

  • Wind Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Very Likely
    Size
    2–7
    Wind slabs are likely behind ridges and terrain breaks.
  • Storm Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Very Likely
    Size
    2–6
    A weak layer in the snowpack is getting progressively more deeply buried with storm snow. Rising temperatures during the weekend will increase the likelihood of storm slab avalanches, which could be large.

Confidence

Fair - Due to limited field observations

Weather Forecast

Saturday night: 10-15cm further snow, with the freezing level near 1000m. Strong winds. Sunday: Flurries or light snow. Strong winds easing. Freezing level gradually lowering.Monday: A moist north-west flow may bring a few flurries, with sunny breaks. Gusty westerly winds. Tuesday: Flurries, turning to light snow by afternoon as the next system pushes onshore.

Avalanche Summary

We've had no new reports from the region. Please send us your observations: [email protected]

Snowpack Summary

Wind slabs and storm slabs continue to build above a weak facet layer which formed during the brutal cold of mid-January and was buried around January 20th. Rising temperatures and snowfall during the weekend will increase the likelihood of storm slab and wind slab avalanches, which could be very large. In shallow snowpack areas, a weak, "rotten" snowpack has been observed.

Regions covered