Avalanche forecast

Waterton Lakes

Dec 21 – 24, 2018Parks Canada
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Archived · expired 8 years ago

Avalanche danger

Sat
Sun
Alpine
3 · Considerable
Treeline
3 · Considerable
Below
2 · Moderate
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Highlights

Wind Slabs a brewing. 10-15 cm overnight tonight with strong SW winds gusting to 110km/h.

Avalanche problems

  • Wind Slabs

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

  • Persistent Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Unlikely - Possible
    Size
    1–3
    caution shallow trigger locations

Weather Forecast

10mm of precipitation is expected overnight with the current high freezing levels dropping to valley bottom around midnight. Strong SW winds with gusts up to 110 km/h will continue until Saturday morning. Trace precipitation over the weekend with Moderate SW winds and average alpine temperatures around -10°c.

Snowpack Summary

Warm temperatures today. Moist surface snow to 1800m. Variable Snowpack depth 20-160cm. Tree line average snowpack 80cm. Windslabs will continue to build with the incoming storm cycle. There is potential for windslabs to step down to weak layers within the lower snowpack.

Avalanche Summary

No avalanches observed at Cameron Lakes. One Natural Size 1 Windslab observed on a West Aspect of the Akamina Parkway.

Confidence

Wind effect is extremely variable on Friday.

Regions covered