Cornices
N
NE
E
SE
S
SW
W
NW
- Alpine
- Treeline
- Below treeline
- Likelihood
- Likely
- Size
- 1–2
Large hanging cornices will weaken with rising temperatures. Use caution traveling below or near them.
Avalanche forecast
View on mapJasper
Apr 7 – 8, 2016Parks Canada
Archived · expired 10 years ago
Avalanche danger
Sat
Sun
Alpine
No rating
Treeline
No rating
Below
No rating
Highlights
Expecting the avalanche hazard to rise rapidly on Friday on all elevations and aspects as freezing level climbs to 3500 m and plenty of sun. Avalanche control planned for Icefields Parkway starting at 16:30 hrs on Friday.
Avalanche problems
Loose Wet
NNEESESSWWNW- Alpine
- Treeline
- Below treeline
- Likelihood
- Very Likely - Certain
- Size
- 1–2
The freezing level is rising to 3500 m tomorrow. We are expecting to see loose wet avalanches on most slopes.
Deep Persistent Slabs
NNEESESSWWNW- Alpine
- Treeline
- Below treeline
- Likelihood
- Very Likely
- Size
- 2–4
The forecasted hot sunny weather on Friday will be a trigger for this problem on all aspects and elevations.
Weather Forecast
Freezing level dipping to 1500 m tonight then soaring to 3500 m by noon Friday with clear skies. Good crust recovery forecasted Friday night with moderating temperatures through the weekend could make for good corn skiing.
Snowpack Summary
A melt freeze crust will form tonight but will deteriorate rapidly on all aspects and elevations on Friday afternoon as temperatures spike and with intense solar radiation. A persistent slab, 30 to 70cms thick, will be of greatest concern on Northerly aspects. Pockets of thin slab on lee aspects.
Avalanche Summary
Large (sz 3) slab avalanches on North alpine aspects starting to be seen. Old slab and loose wet avalanche activity to size 2.5, mostly on solar aspects observed by field teams along the Icefields Parkway on Wednesday.