Cornices
N
NE
E
SE
S
SW
W
NW
- Alpine
- Treeline
- Below treeline
- Likelihood
- Likely - Very Likely
- Size
- 1–3
Numerous cornice failures observed and have been triggering isothermal avalanches to size 3.
Avalanche forecast
View on mapJasper
Apr 24 – 25, 2016Parks Canada
Archived · expired 10 years ago
Avalanche danger
Tue
Wed
Alpine
No rating
Treeline
No rating
Below
No rating
Highlights
Spring Avalanche Conditions until further notice. Monitor weather for significant changes.
Avalanche problems
Loose Wet
NNEESESSWWNW- Alpine
- Treeline
- Below treeline
- Likelihood
- Likely - Very Likely
- Size
- 1–3
Wet avalanches are now more frequent on N to NE aspects as snowpack continues to deteriorate.
Deep Persistent Slabs
NNEESESSWWNW- Alpine
- Treeline
- Below treeline
- Likelihood
- Likely - Very Likely
- Size
- 2–4
This problem remains primarily on high northerly alpine slopes.
Weather Forecast
Spring weather conditions. Rain, snow, wind, scorching hot sun can all be expected over the course of the day, be prepared for all types of weather. Freezing levels to remain high.
Snowpack Summary
A weak snowpack with isothermal conditions Below Tree Line, Tree Line and reaching into the Alpine exists on all aspects due to prolonged high freezing levels. Some crust recovery overnight in the high Alpine. The persistent slab problem still exists on high north facing alpine slopes in specific locations.
Avalanche Summary
Loose wet and wet slab avalanches up to size 3 have been observed along the Parkway, many initiated by cornice failure due to daytime heating. This trend will continue with the forecasted weather ahead.