Avalanche forecast

Northwest Coastal

Apr 21 – 22, 2018Avalanche Canada
View on map
Archived · expired 8 years ago

Avalanche danger

Mon
Tue
Alpine
2 · Moderate
Treeline
2 · Moderate
Below
1 · Low
Open full map

Highlights

Lingering wind slabs may still be reactive to human triggers on leeward slopes below ridgetops.

Avalanche problems

  • Wind Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible - Likely
    Size
    1–2
    Lingering wind slabs may still be reactive to human triggers in wind affected terrain at treeline and above.

  • Loose Wet

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible
    Size
    1–2
    Recent storm snow below treeline may quickly become moist and increase the likelihood of loose wet avalanches.

Confidence

Low - Due to the number of field observations

Weather Forecast

SUNDAY: Cloudy. Light south wind. Alpine temperature -1. Freezing level 1200 m. MONDAY: Cloudy. Moderate to strong southwest wind. Alpine temperature +3. Freezing level 1500 m.TUESDAY: Mostly cloudy with sunny breaks. Light to moderate southwest wind. Alpine temperature +3. Freezing level 1500 m. 

Avalanche Summary

No new avalanches were reported in this region. Avalanche reports have been limited due to very few information sources this time of year. If you have been out, please post your observations on the Mountain Information Network. (MIN)

Snowpack Summary

Lingering wind slabs may still be reactive to human triggers on leeward slopes below ridgetops.In the south of the region, two layers of surface hoar are buried early-March and mid-March are approximately 70-100 cm deep and most prominent on north to east aspects. Further north, these layers are around 40 cm deep.Below these March layers the mid-pack is generally well-settled and strong. However in the far north of the region there are weak sugary facets near the bottom of the snowpack.

Regions covered