Avalanche forecast

Jasper

Apr 5 – 6, 2014Parks Canada
View on map
Archived · expired 12 years ago

Avalanche danger

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

Highlights

Thinner areas are likely trigger spots for deep persistent slab releases. Expect danger at all elevations to increase if temperatures spike unexpectedly.

Avalanche problems

  • Wind Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible - Likely
    Size
    1–3
    Southwest winds are creating windslabs along alpine ridgelines and cross-loaded features. Their thickness and interface is variable depending on aspect, elevation, and localized weather influences.

  • Deep Persistent Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible
    Size
    1–3
    Weak basal facets and depth hoar remain intact and should be on your radar. This deep weakness is difficult to predict and has severe consequences. The snowpack above appears to be bridging the weakness; however, allot of spatial variability exists. 

Weather Forecast

Sunday into Tuesday will bring a dusting of snow, clouds, and fluctuating temperatures. Daytime temperatures expected to remain around zero; however, models are uncertain for Monday and Tuesday's warmer temperatures and potentially strong winds.

Snowpack Summary

SW winds forming windslab along alpine ridge tops. A temperature crust is found on lower elevation slopes and a sun crust on southerly facing slopes into the alpine. A slab developing over the crust may result in an avalanche condition. Weak basal facets requires a large trigger, or a tickle in just the right spot, and would be a large avalanche.

Avalanche Summary

No avalanches reported today.

Confidence

Freezing levels are uncertain on Monday

Regions covered